How many problems does the 2021 CHEVROLET Tahoe have?

The 2021 CHEVROLET Tahoe currently has 341 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.

What are the most common problems with 2021 CHEVROLET Tahoe?

The most common problems reported for the 2021 CHEVROLET Tahoe are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

2021 CHEVROLET Tahoe Problems

ENGINE

56 complaints

Having to replace the radiator due to it leaking around a plastic connection to metal. Was told by the dealership this has an updated part from GM due to it being a known issue.

Dec 12, 2025

I am submitting this complaint to the National Highway Traffic Safety Administration (NHTSA) regarding a sudden engine failure in my 2021 Chevrolet Tahoe equipped with a 6.2L V8 engine, which posed a serious safety risk. I was driving on the highway at approximately 65 mph with cruise control engaged. Suddenly, the vehicle lost all power, disengaging the cruise control, and the check engine light began flashing rapidly. I managed to exit the highway safely. While stopped at a traffic light, preparing to turn into a nearby repair shop, the car started shaking violently from side to side, making it difficult to control. I took the vehicle to a Firestone shop and a local Chevrolet dealer, both of which diagnosed massive engine failure and indicated that the engine will most likely need to be replaced. The symptoms I experienced—sudden loss of power at highway speeds, flashing check engine light, and violent shaking—are in line with issues reported in other GM 6.2L engines that have been recalled. For whatever reason, my 2021 Tahoe, which falls in the middle of the affected model years for these recalls (e.g., GM recall N252494001 for 2021-2024 vehicles with 6.2L V8 engines due to defects in connecting rods and crankshafts leading to engine damage and loss of propulsion), is not included under the broader GM 6.2L engine recall, although I experienced very similar issues. The biggest safety concern was the engine essentially losing power at highway speeds, which could have led to a crash. I urge NHTSA to investigate and expand coverage if necessary to ensure public safety.

Nov 08, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. In addition, the contact noticed an abnormal ticking sound. The vehicle was towed to an independent mechanic, where the vehicle was diagnosed with a misfire in cylinder #7. The independent mechanic checked the spark plugs and other unknown parts for failure; however, there was no evidence of a failure. The contact was informed of a valve lifter failure. The contact was informed that the valve lifter and possibly the push rods and camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact referenced Technical Service Bulletin: N212353840; however, the VIN was not included. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 87,893.

Nov 03, 2025

We have experienced a loss in power that is accompanied with an audible engine knocking sound. The loss of power affected our ability to safely merge into the highway.

Oct 15, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while his wife was driving at undisclosed speeds, there was an abnormal ticking sound coming from the vehicle. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed, and determined that the cylinder #1 left side lifters and push rod had collapsed. The lifters and push rod assembly were replaced. The contact stated that on a separate occasion, while driving at undisclosed speeds, there was an abnormal ticking sound coming from the vehicle, and the check engine warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed, and determined that cylinder #4 lifters had detached, and the push rod was bent. The vehicle was repaired. The contact stated that the engine was consuming an excessive amount of engine oil. The contact related the failure to TSB: 15-06-01-002A. The dealer and manufacturer were not made aware of the failure. The failure mileage was approximately 12,400.

Sep 09, 2025

+ 51 more complaints for this component

FUEL/PROPULSION SYSTEM

48 complaints

I am writing to formally request a review of my vehicle’s eligibility for Recall N212332040. I own a 2021 Chevrolet Tahoe, which is currently not listed under the affected vehicles for this recall. However, based on the recall description and the symptoms outlined, I believe my vehicle experienced related issues and should be considered for inclusion. While driving down the highway my vehicle experienced power failure leading to a full stop in the middle of the highway, resulting in a 9-1-1 call due to safety concerns for myself and oncoming traffic. The car was later diagnosed with the fuel pump module failure that other vehicles within the same year & model experienced, which were included in the recall. Why mine wouldn’t be included is quite confusing. I respectfully ask that your team investigate whether my Tahoe meets the criteria for Recall N212332040. On 10/20 I sent in a request to the GMC recall department & on 11/11 I was denied anything further. I appreciate your attention to this matter and your commitment to vehicle safety.

Nov 11, 2025

While driving my vehicle shut down. It will not longer crank. Had to have it towed. I am told that it’s the fuel pump driver control module. I carry my two children in this vehicle daily. This could have ended very badly. Now not only is my family without a dependable vehicle, I am going to be out a lot of money on an issue that is already a common issue.

Oct 20, 2025

The fuel pump went out. We were driving, about to enter traffic, and the engine shut off. It would not restart, and we had to have it towed to a mechanic's shop. The fuel pump control module was removed and replaced.

Oct 07, 2025

I JUST HAD TO BUY A FUEL PUMP CONTROL MODULE 2021 CHEVY TAHOE HIGH COUNTRY THAT WOULD CRANK OVER, AND NOT START. PER INTERNET, THIS PART IS ON A MILLION CAR PART FAILING. I FOUND ON INTERNET THAT IT SHOULD BE REPLACED AT NO CHARGE. I WAS STUCK AT HOUSE AND HAD A FRIEND CHECK WITH A OB2 TESTER AND IT SHOWED FAILURE. I CALLED 2 DEALERS AND MENTIONED RECALL AND WAS TOLD THEY KNEW NOTHING ABOUT. YET ON SEPTEMBER 11TH OF THIS YEAR, GM WAS WELL AWARE! RECALL #252516900. I HAD TO GET A RIDE AND GO PURCHASE AT A GM DEALER. AND PAID $69.09 WITH TAX. PART NUMBER #13554821 GM 03900 MODULE 03.900. AND COULD HAVE BEEN A SERIOUS PROBLEM IF I WOULD HAVE BEEN DRIVING OR STUCK OR SOMEWHERE. COSTLY TO GET TOWED AND NO CAR TO DRIVE. IM HANDICAP AND CAN'T BE WITHOUT. BUT FOR A DEALER TO CHARGE. AND PLAY DUMB SINCE I WAS GOING TO HAVE TO BUY AND CHANGE AT MY HOME. WANT MY MONEY BACK FOR A NO CHARGE PART.!!!!!!!!!

Oct 01, 2025

Was in stop and go traffic. Car suddenly said “conditions not correct for shift” and engine died. The car would not turn on and it could not be put into neutral therefore was stuck in the lane stopping all traffic on the NJ turnpike. It created a safety issue for that reason as there was no way to move the car to a safe place until a tow truck came and had to drag it onto the bed. I have since had it repaired at a local shop not Chevrolet dealer and was told it was fuel pump failure. There was no warning or any other symptoms in facet I had just had an oil change a week prior. Had there not been stop and go traffic and I was going the speed limit (60mph), there could have been a major accident and injuries.

Sep 26, 2025

+ 43 more complaints for this component

POWER TRAIN

23 complaints

My Tahoe was making a loud noise, I took it to the dealer to look at it and they said I need to replace the rear driveshaft to the tune of $4000. I don't have $4000 to spend on this. This Tahoe is only 4 years old and was supposed to drive us to Minnesota next week for Christmas and now that is not possible. This is a known issue and a recall, but my VIN not included in that recall. How can this happen - you know it is a known issue in these cars! Power train Recall date 2022-01-27 Recall no. 22V036000 General Motors, LLC (GM) is recalling certain 2021 GMC Yukon, Yukon XL, Cadillac Escalade, Escalade ESV, Chevrolet Suburban, and Chevrolet Tahoe vehicles. The rear wheel driveshaft assemblies may have internal components that were not heat-treated properly, possibly resulting in driveshaft failure. Recall consequence Driveshaft failure can cause a sudden loss of drive power, increasing the risk of a crash. Recall action Dealers will replace the left and/or right rear driveshaft assemblies, free of charge. An owner notification letter mailing date has not been finalized. Owner notification letters are expected to be mailed April 15, 2022. Owners may contact Chevrolet customer service at 1-800-222-1020; Cadillac customer service at 1-800-458-8006 or GMC customer service at [XXX] . GM's number for this recall is XXX INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Dec 18, 2025

Issue related to the rear-differential fluid, TSB 21-NA-028. Its a known issue where the rear differential make moan/chatter noises on turning (including at low speeds). Dealers are instructed to service/replace the rear differential fluid and perform procedures to address clutch pack chatter. It is such an issue, the fluid to remedy this is on back order!

Dec 16, 2025

2021 Tahoe Z71 with 70000 miles making a roaring and whining noise on reverse and turning, especially when cold. Took to shop and they changed the rear differential fluid. Now its worse. Needs a whole new rear end. This veicle is 4 years old and does not tow or use four wheel drive. The shop said there has been so many complaints and services on the same issue. Why is there not a recall on this yet? We spend $70,000 and up and expect a more quality vehicle without having to spend $4000 dollars on repairs.

Dec 16, 2025

Based on dealer inspection, oil was found sitting on top of the #2 piston, and you’ve indicated the failure is originating from the bottom end of the engine—likely involving piston, ring, or cylinder wall damage. Combined with the stored P050D, P0300, and P0302 codes, this represents a clear internal mechanical failure. Vehicle is currently at the dealership. Mechanical failure while driving the vehicle. Sensor light for service ESC and service traction control both showed as the failure was occurring.

Dec 05, 2025

My 2021 Chevrolet Tahoe recently displayed a warning message that said “Service Transmission – May Not Be Able to Shift Soon.” The message appeared at approximately 132,754 miles. Since then, I’ve noticed delayed and rough shifting between gears. The vehicle still drives and shifts into gear, but the message and behavior are concerning. I have an appointment scheduled for a diagnostic inspection on Tuesday, which was the earliest available. I have not yet received a confirmed diagnosis, but I’ve seen that many other 2021 Tahoe's and similar GM vehicles have experienced the same transmission problem and were included in recalls. My vehicle’s symptoms match those reports, though my VIN was not included. This situation makes me nervous because I drive with my four children daily. Even though the vehicle hasn’t completely lost the ability to shift, a sudden failure while driving could put my family and others on the road at risk. The warning itself suggests a potential failure is coming soon. The vehicle has been properly maintained and has not had prior transmission work. I’m reporting this because it appears to be part of a larger pattern that should be investigated to determine if more vehicles need to be included in GM’s existing transmission recall.

Oct 24, 2025

+ 18 more complaints for this component

UNKNOWN OR OTHER

17 complaints

PER HENDRICKS CHEVROLET IN HOOVER, AL "INSPECTED REAR DIFF FOR METAL & FOUND LAARGE AMOUNTS OF METAL ON DRAIN PLUG MAGNET. RECOMMEND REPLACING REAR DIFF DUE TO LARGE AMOUNT OF METAL FOUND IN OIL." There was no warning on the vehicle; however, you can hear it loudly when a left or right turn is made.

Dec 02, 2025

Driving down the highway (open road) and the sunroof spontaneously shattered.

Sep 09, 2025

My vehicle is a 2021 Chevrolet Tahoe with less than 90,000 miles and the catalytic converters have internally failed causing a $3000 complete replacement of that system in which they state should last a lifetime of the vehicle and it is not even five years old.

May 07, 2025

The HVAC blend/mode door actuator has melted, causing a fire hazard.

Nov 01, 2024

Gps/onstar module not working, I read a lot of people are complaining same thing. I had it for a year, warranty done but I never used it. Sad you spend $70k on a truck and onstar goes bad and you never used it and they want more money to replace it. Now engine light is on.

Jun 21, 2024

+ 12 more complaints for this component

FUEL SYSTEM, GASOLINE

13 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while turning left with a foot on the accelerator pedal, the vehicle lost motive power and started shaking. The contact pulled over to the side of the road and attempted to restart the vehicle, but the vehicle failed to restart. The vehicle was towed to a dealer, where it was diagnosed that the intake fuel pump needed to be replaced. The vehicle was repaired, but the failure reoccurred approximately five months later. The vehicle was taken to another dealer, where the fuel pump power control module needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 35,000.

Dec 04, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated while making a right turn, the vehicle lost automotive power. No warning light was illuminated. The contact stated that the transmission was stuck in park(P). The vehicle was towed to a local independent mechanic and was diagnosed with fuel module failure. The contact was informed that the fuel module needed to be replaced. The vehicle was taken to a local dealer where it was diagnosed at the owner’s expense. The vehicle was not repaired due to the cost. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 80,000.

Mar 06, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving 35-40 MPH, the vehicle stalled without warning. The vehicle failed to restart. The contact waited with the hazard lights flashing. The contact stated that after approximately 6 attempts the vehicle restarted. After driving a short distance, the vehicle stalled again. The contact was able to coast to a nearby gas station. The contact made several more attempts to start the vehicle after waiting for a while, to restart the vehicle. The contact was able to drive to the residence. The vehicle was taken to the dealer who diagnosed that the fuel pump power control module (Part # 13544060) had failed and needed to be replaced. The dealer was unable to repair the vehicle due to the part not being available. The contact became aware of NHTSA Campaign Numbers: 21V739000 (Fuel System, Gasoline) and 21V064000 (Fuel System, Gasoline); however, the VIN was not included in the recalls. The manufacturer was made aware of the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 60,452.

Dec 30, 2024

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the vehicle stalled and lost motive power. The vehicle was started; however, the vehicle failed to start as intended. The contact stated that there was no option to shift the gear shifter into neutral. In addition, the contact stated that the failure occurred while the family including small children, were inside the vehicle. The vehicle was towed to the dealer where it was diagnosed with a failed fuel pump power control module. The contact was informed that the fuel pump power control module needed to be replaced. The vehicle was not repaired. The contact was made aware of NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 32,334.

Nov 13, 2024

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while cold starting the vehicle, there was an abnormal gasoline odor inside the cabin from the vehicle. The contact stated that the odor was stronger while the heater was activated. The contact stated no warning light was illuminated. The vehicle was taken to a dealer, where it was diagnosed and determined that the high-pressure fuel pump (HPFP) was cracked and leaking gasoline. The contact was informed that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 51,264.

Nov 06, 2024

+ 8 more complaints for this component

ENGINE,FUEL/PROPULSION SYSTEM

12 complaints

I was driving on the highway at approximately 35mph when I noticed there was no response from the accelerator. I shifted the vehicle into neutral and coasted onto a side road and call OnStar for assistance. The dashboard indicator said to restart engine. I attempted to restart, but the engine would crank but not turn over (start). The vehicle was towed to the dealership where the fuel pump assembly was found to have failed and need replacement.

Dec 16, 2025

1. What component or system failed or malfunctioned, and is it available for inspection upon request? Answer: The vehicle’s 6.2L L87 V8 engine suffered a sudden internal mechanical failure involving the connecting rod, rod bearings, and crankshaft assembly, resulting in catastrophic engine damage. The failure mode is consistent with the defect described in GM Recall N252494001. The engine and all damaged components are fully available for inspection upon request. 2. How was your safety or the safety of others put at risk? Answer: The engine failed without warning while the vehicle was in motion, causing an immediate loss of propulsion. This created a hazardous situation where the vehicle could no longer accelerate or maintain speed in traffic, increasing the risk of a rear-end collision or loss of vehicle control. GM’s own recall documentation identifies this exact failure mode as a significant crash risk, and that same hazard occurred in my case. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Answer: Yes. A service technician confirmed catastrophic internal engine failure consistent with connecting-rod or crankshaft damage. The dealer also verified that the engine is inoperable and requires full replacement. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Answer: No, the engine failed while in motion and was taken to the closest mechanic. Inspections by an insurance representative or manufacturer representative can be arranged. The vehicle and damaged engine remain available for further examination. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Answer: No. There were no warning lamps, diagnostic messages, or drivability symptoms prior to the catastrophic engine failure. The failure occurred suddenly and without any advance indication. All service records are available

Nov 14, 2025

Automatic fuel management/ Displacement on demand caused lifter failure which caused cylinder failures.

Jul 04, 2025

I was driving home from a long trip and heard a large pop. Several warning signs and messages began popping up and the vehicle was shaking and struggling to maintain speed. I was able to get home and get my family out of the vehicle and get it to a dealer down the road. They stated the Fuel injector and harness had failed.

Jun 27, 2025

Unknown - engine is driving hard and somethings wrong. No one will service my car because they say it’s on a recall, but then when they look up the VIN number it’s not on a recall however there are major issues going on.

Jun 18, 2025

+ 7 more complaints for this component

AIR BAGS

11 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the message "Safety Restraint System" was displayed, and the air bag warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance in adding the VIN to a recall. The failure mileage was approximately 98,520. The VIN was not available.

Sep 02, 2025

Air bags did not deploy after significant frontal damage. No warning that the air bag sensor was bad.

Dec 17, 2024

Crash: 1

Took the vehicle in for Airbag System recall in 2022. They said they fixed it and that there was a broken wire. The very next day the warning light came on again like before. I contacted the dealership and they said bring it in. I could not get it in again as I was very busy. I asked them to make a note in my file of the immediate call/report of still a problem. I took the vehicle in this month (October 2024) for issue of no starting (fuel pump failure, another recall they are denying). They stated that the Drivers Side Airbag module was shorted or bad and my cost would be approximately $1,250. They stated it was not covered under any recall. I contacted Chevy corporate that offered to cover 30% only of this. I believe this should be covered in whole due to the failure to repair the first time and that is is a known safety issue. The vehicle has only 10,800 miles.

Oct 22, 2024

I have a 2021 Chevy Tahoe that has been to the dealer 3 times now for an airbag light (DTC B14DC). The dealer has yet to resolve this issue. I am being told it has to do with the harness in my drivers seat. The dealer performed a TSB for this issue which still hasn't fixed the problem. My wife and I travel back and forth from Michigan to Arizona and I am concerned that the system wont perform correctly if I am in an accident.

May 12, 2024

The contact owns a 2021 Chevrolet Tahoe. The contact stated while operating the vehicle, the "Service Safety Restraint" massage was displayed. The vehicle was taken to the local dealer who diagnosed the vehicle and determined that the front driver's side seat interior air bag connector was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 41,000.

Apr 17, 2024

+ 6 more complaints for this component

SERVICE BRAKES

11 complaints

I have had the break pads and rotors replaced and in the shot over 6 times with them still not fully functioning correctly. I finally gave up on them and still expected to pay again. I don’t feel like this car is safe and have had nothing but issues

Jul 17, 2025

On a few occasions the emergency / parking brake auto releases when parked on a slight incline while the engine is running and transmission is in park.

Feb 10, 2025

While my wife was driving her car going down a slope, Her brake pedal fell to the floor loosing brakes and would not return to normal position for a few minutes. I took the vehicle into the dealership over two weeks ago and they have not been able to re-create the situation that took place while my wife was driving the car and still have not returned the vehicle. My concern is that my wife will not feel comfortable driving the car with our toddler and new born if there is no actual repair.

Oct 14, 2024

I was driving with family (2 adults - including myself, and 5 kids - ages [XXX] ) The truck started to flash warnings and my brakes disabled. We couldn't stop and almost had an accident. I kept pumping the brakes and the E break I didn't give it any gas and we slowly came to a stop after some time. I shut the truck off as I was beyond terrified and tried to start it back up. The lights came on but it didn't turn over to start. Had to have it towed and find an uber for a 7 passenger car. The truck was towed to the nearest dealer (a little over an hour from my home) and I was told it was a battery issue. They replaced the battery didn't check the breaks and told me if the battery dies the breaks stop working. Yet, I had power in the truck just no brakes, when I tried to turn it on the lights went on as did the radio but that was it. I tried to take pictures of the warnings on the dash however we were in Mom panic mode. Chevy is acting as if this isn't an issue. I had to put out over $1,100 between the battery, the fees of the dealership, rental and an uber. If we were going at a higher speed we would have not been okay. It was beyond dangerous and the thought that if a battery suddenly dies you have no breaks, that is just unacceptable. I would love for someone to look into this. I am now looking to see what I can do as I don't feel safe in the truck. I don't want this to happen to anyone else hence why I am asking for someone to please look into this. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Aug 01, 2024

While traveling on the highway at 65 mph the car comes to a complete stop with no brakes applies. No engine light present nor were the emergency braking lights on. This is the 4th occurance.

Mar 17, 2024

+ 6 more complaints for this component

EXTERIOR LIGHTING

10 complaints

Driver's side headlight adjuster screw breaks very easily, and makes the headlight beam be too low with inability to adjust it. There is no way to replace it... it requires a change of the entire headlight, which requires removing the entire grill. A cheap piece that makes customers pay thousands of dollars in repairs. There are a myriad of reports of this issue online, for example here: https://www.tahoeyukonforum.com/threads/headlight-adjuster-broken-again.144355/

Nov 21, 2025

Headlights are unable to be adjusted using the headlight adjuster leading to a safety issue when operating the vehicle at night. Headlights point down and don’t light up the road properly during night time driving.

Aug 15, 2025

We were driving our 2021 Chevrolet Tahoe (purchased Dec 2020; odometer currently right under 40,000 miles) out of town this past weekend and I noticed the headlights were not illuminating the road ahead very well once the sun went down. They seemed like they were pointed down and when i turned on the high beams, those were also lower than how the low beams are usually pointed. We were stuck in the middle of nowhere and I persevered with low lighting onto our destination. After researching the issue on the internet days later, I found a Tahoe Owners' forum/thread [XXX] ) where several other 2021 Tahoe owners had experienced the exact same issue as ours had. The culprit appears to be a sub-component of the headlight adjuster mechanism, but GM/Chevrolet does not offer a replacement for either this small white plastic piece that is failing and the only repair option they have for this issue is complete replacement of the entire headlamp assembly ($1,350 MSRP). This is a dangerous problem that occurred randomly on a vehicle with low mileage and appears to potentially be a common failure for other owners of the same headlamp design. I have not taken this vehicle into the dealership for inspection, as I expect they will only replace the entire headlamp assembly for $$$$. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

May 28, 2025

The headlight adjustment screws fail causing the projector adjustment to bottom out leaving limited visibility when driving in the dark. The headlights then do not raise back up any longer.

Apr 30, 2025

I'm [XXX] so not much night driving. The other night I left a meeting when I turned on headlights one is pointing down. Difficult to see and hard to stay between the lines. My vehicle has never ben in an accident nor had lights repaired. Checking online I see this is a problem for many Tahoe, Suburban and Yukon owners and perhaps even pickup trucks. In my opinion this represents a serious safety concern. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mar 28, 2025

+ 5 more complaints for this component

ENGINE AND ENGINE COOLING

10 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact received notification of NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The contact stated that the dealer was contacted; however, the contact was informed that parts were not yet available. The vehicle was not repaired. The manufacturer was contacted about parts availability. The contact had not experienced a failure.

Sep 03, 2025

The contact owns a 2021 Chevrolet Tahoe. While driving 25 MPH, the vehicle stalled in the street. The vehicle was eventually restarted and was driven to the family’s residence. After arriving at the residence, the vehicle failed to restart. The contact stated that the failure was like the failure in NHTSA Campaign Number 25V274000 (Engine and Engine Cooling). There were no warning lights illuminated. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 73,000.

Sep 02, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the vehicle made an abnormal ticking and knocking sound. The check engine warning light was illuminated. The contact was able to drive to the nearby dealer, where the vehicle was diagnosed based on the abnormal sounds. The dealer determined that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle was not repaired. The contact was referred to the manufacturer for assistance. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 187,000.

Aug 22, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at various speeds, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal. The contact was able to pull over to the side of the road before the vehicle stalled. The check engine warning light was illuminated. The vehicle was towed to a dealer; however, the vehicle was not diagnosed or repaired. The vehicle was then towed to the residence. The vehicle was again towed to the dealer, where it was diagnosed, and determined that an engine valve had failed, and the lifter lock pin spring had failed, which caused the engine to misfire and engine failure. The contact was informed that the engine needed to be replaced. The vehicle remained at the dealer unrepaired due to the cost. The contact related the failure to NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The contact stated that the first year the vehicle was purchased the vehicle failed to restart, and several attempts were needed to start the vehicle. The vehicle was taken to the dealer. The contact stated that an unknown electrical system repair was performed. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was unknown.

Aug 14, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at various speeds, the vehicle lost power and shut off unexpectedly. The contact stated that several attempts were needed to restart the vehicle to continue driving. The check engine warning light was illuminated during the failure. The vehicle made an abnormal ticking sound while idling. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not under recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 24,971.

Jul 28, 2025

+ 5 more complaints for this component

ELECTRICAL SYSTEM

9 complaints

Info center with radio, vehicle info, on star keeps going black screen. When this happens I loose all control of info center and on star goes out where no location would be available if the vehicle was in an accident. This is safety concern because with no automatic notifications of accident no one would know if vehicle was in an accident. The vehicle has been to dealer 4 times for this problem since February of this year. Each time the dealer says it needs another update each time. GM is having this issue with many of the Vehicles like this Tahoe. On Star is also aware of the issue too. GM knows there's an issue but now they are saying I have to pay for an update because I am out of my extended warranty even though this has been an ongoing problem which started when I was in warranty. This has to be a programming issue that they need to fix. The vehicle has to be shut off for up to an hour for screen and controls to come back on which is safety issue because no way to change any settings for vehicle and safety backup because of no on star.

Sep 14, 2025

Fuel module failure while driving, engine stalled and would not restart.., while at highway speed. Very dangerous situation!!!!! Tahoe was towed to dealership kept for. 1day. Chevy dealer replaced fuel module. We have owned 6 different Tahoes starting with the year 2015 to 2024. The fuel module failed on the 2021, 2022 and now the 2023!!!!!!! Makes us question if we should purchase a new Tahoe every other year? Seriously considering other car brands such as Ford, BMW or other more reliable brands!!!!

Feb 13, 2025

On 2 occasions the dash lights and gauges do not turn on when the vehicle is on. The first time this happened I was driving and was no longer able to see my speed or any other details provided by the gauges. We changed the fuse and it seemed to work for 1 day. The next day I turned the vehicle on, was able to drive but none of the dash features were functioning again. Will be taking to dealership when available scheduling to have it evaluated.

Feb 02, 2025

vehicle infotainment system will randomly "restart" or shut off completely when vehicle is being drove, but will still be playing music also all time and temperature (outside temp) will freeze when this happens. it also make the battery drain when this happens. the only way to get the screen to come back on weve tried is to disconnect battery. weve replaced the battery, weve had a chevy dealership look into it. no one can figure out what is happening. Now it is happening more and more. we also do not receive updates anymore to the infotainment system. the dealership had to manually do it a year ago. also will not keep our proifile signed in at all. always says were stuck in guest mode. says we have full storage when there is not any apps downloaded.

Dec 18, 2024

My vehicle performed an update without my knowledge. When I got back into my vehicle after a quick stop the infotainment system said "Update Failed - Return to Dealer". I did so and was informed that a reprogram was attempted but failed so the entire system needed replaced. There is active recalls I'm told on newer model vehicles with the same issue but mine is not included. So, after the OTA update I didn't ask to take place I'm stuck paying $1,300 for a new infotainment system. I called GM who basically told me without there being a recall there was nothing they could do.

Nov 27, 2024

+ 4 more complaints for this component

POWER TRAIN,ELECTRICAL SYSTEM,ENGINE

6 complaints

The affected components are the electrical system, engine, and power train. In March 2025, my 2021 Chevrolet Tahoe displayed multiple warning lamps across the dash, including traction control and check engine lights. The vehicle shifted erratically and sometimes entered limp mode. I brought the vehicle to AutoNation Chevrolet South Clearwater for inspection. The dealer replaced the battery, dismissed my concerns, and stated that a test drive was performed, but the mileage in and out on the invoice was identical, showing it never actually occurred. Diagnostic trouble codes (P0700, P0717, P2714, P2716, P0706, and multiple U-codes) were present but were not fully investigated. A GM Technical Service Bulletin (21-NA-149, December 2022) covers these exact symptoms (caused by engine wiring harness chafing), but it was never referenced or applied. Because the problem was not addressed, the condition worsened. By July 2025, the vehicle suffered a complete transmission failure. At that point, the dealer confirmed the issue, documenting transmission slipping, shuddering, noise, and additional codes (P0700, P077C, P17F6, P17FB, P1872). GM increased its goodwill contribution from 15% to 40% of the $9,925 repair cost, while AutoNation offered only $500 despite their role in the missed diagnosis. Safety Risk: My family and I were at risk each time the vehicle stalled, lost power, or shifted erratically while driving, including at highway speeds. These failures created a significant risk of collision. The drivability problem was not properly confirmed in March 2025 despite multiple codes being present. By July 2025, the dealer acknowledged and confirmed the transmission failure. The vehicle remains available for inspection, and I have retained all invoices, diagnostic reports, and communications with GM and the dealership.

Aug 30, 2025

The affected systems are the power train, engine, and electrical. My 2021 Chevrolet Tahoe experienced failures consistent with GM Technical Service Bulletin 21-NA-149 (engine wiring harness chafing) and the conditions outlined in Recall N232404190 (valve body failure, November 2024). Beginning in March 2025, the vehicle displayed warning lights and messages including Check Engine, Traction Control, Service Transmission, and limp mode (Reduced Acceleration – Drive with Care). The vehicle shifted erratically, lost power, and occasionally failed to accelerate, creating a serious safety hazard at highway speeds. These problems were documented at AutoNation Chevrolet South Clearwater, where multiple diagnostic trouble codes (P0700, P0717, P2714, P2716, P0706, and U-codes) were recorded but not properly investigated. No test drive was performed despite being claimed by the service technician, and the applicable TSB was not referenced. By July 2025, the condition worsened into a complete transmission failure, with additional codes (P0700, P077C, P17F6, P17FB, P1872). The dealer’s estimate required a full transmission replacement at nearly $10,000. GM reviewed the case through its internal Policy Evaluation Tool and increased goodwill assistance from 15% to 40%, while AutoNation contributed only $500. GM’s partial contribution confirms the defect is recognized, yet this VIN remains excluded from the official recall. This issue placed my family and other motorists at significant risk, as sudden loss of power and shifting failures occurred during normal driving conditions. Dealer records, GM documentation, and photographs of warning messages are available. I request that NHTSA expand Recall N232404190 to include affected VINs such as mine, since the symptoms, diagnostic codes, and confirmed failures match exactly what GM has already identified as a known safety issue.

Aug 30, 2025

On 01/03/24, the vehicle stalled and smoked on the Suncoast Parkway. All dashboard warning lights and messages illuminated, and the vehicle entered emergency park mode. OnStar was contacted and the vehicle was towed to Jenkins Chevrolet in Homosassa, FL. The failure was linked to a broken pulley and belt system that damaged the ECM and wiring harness. No DTCs were pulled, and mileage in/out was 80042/80043—no test drive performed. On 08/06/24, the vehicle returned to Jenkins for a roaring noise. A pulley bearing was replaced, possibly related to the earlier failure. Again, no drivability evaluation or codes recorded. On 03/09/25, the same full system warning lights/messages appeared again. The vehicle experienced harsh shifting and delayed acceleration. It was taken to AutoNation Chevrolet South Clearwater on 03/10/25. DTCs (P0700, P0717, P2714, P2716, P0706, and U-codes) were found but dismissed. Only the battery was replaced. Mileage in/out was 99494—no test drive performed despite claims one occurred. On 07/08/25, the vehicle again showed full dashboard warnings. Brought back to AutoNation on 07/09/25. On 07/14/25, customer received a $9,177.85 estimate including full transmission replacement. Safety was at risk due to repeated stalling, loss of acceleration, and emergency parking mode while driving or merging. These failures could have led to accidents or left the vehicle disabled in traffic. Driver and children were present during each incident. The vehicle is enrolled in OnStar and the MyChevy app, which provide monthly health reports. Despite these incidents, no faults or warnings were ever shown in the reports. Vehicle remains available for inspection. A case is open with GM. Across 4 service visits, GM-certified dealerships failed to follow proper protocols, including code checks, drivability assessments, and test drives—contributing to delayed diagnosis of transmission failure.

Jul 16, 2025

This is the second engine I’ve had replaced since I bought the vehicle in December 21, 2023. The first engine failed in August of 2022 while I was driving on the highway. The vehicle began to smoke and shut down while I was driving on the highway. The vehicle shut down and I had to use the current momentum of the vehicle to pull over to the shoulder. The vehicle would not come out of gear and would not restart. I complained of transmission problems ever since the engine was replaced. The service department escalated the concerns to the GM engineers who never gave directions to check the transmission fluid or physically check the transmission. January 24 of this year I was on the highway driving to work when the vehicle again shut down. The dash stated restart the vehicle. While in motion the vehicle was trying to shift to neutral. I informed the dealer of this message and they claim they took note of it. With the vehicle not being able to start or move out of gear the tow truck had to drag the vehicle onto the bed of the tow truck. This also occurred on the first engine failure as well.

Jan 23, 2024

While driving in traffic the car shut off, engine stopped. When the car stopped it went into park. Could not restart the car. Starter worked and engine started but ran very rough then stopped several times. I could not completely shut off the car in an attempt to basically reboot. Car had to be towed to the dealer.

Jan 08, 2023

+ 1 more complaint for this component

SEAT BELTS

6 complaints

third row sealbelt buckle retention been a problem since 08/2022 and no one has given me a call. IF I get in a car accident it can increase the risk of injury for the people in the 3rd row. i have no accidents but I'm trying to prevent it from having one.

Mar 08, 2023

2022 Tahoe was inspected for the announced recall. The manufacturer Chevy has no timeline for when the 3rd row seat belts will be repaired but only said we CANNOT use any of the 3rd row seats till fully repaired. I called chevy and ask them what’s the suggestion what’s if the passenger is 5 or more. Will the give rental fee or a loaner vehicle. They said no. This is totally unacceptable. GM is offering nothing to customers that purchased $74000+ vehicles from them for the very reason that they have big 3rd rows. How are families of 5 or more supposed to function in the meantime? NHTSA should exert all available pressure on GM to prioritize on-road vehicles and do it now.

Oct 16, 2022

The contact owns a 2021 Chevrolet Tahoe. The contact received a notification for NHTSA Campaign Number: 22V617000 (Seat Belts) however, the part to do the recall repair was unavailable. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. VIN tool confirms parts not available.

Oct 07, 2022

Our Tahoe was inspected for the announced recall and failed the test. The dealer/manufacturer has absolutely no timeline for when the 3rd row seat belts will be repaired and said we cannot use any of the 3rd row seats until then. The dealer even said it could be a year before parts are available. This is totally unacceptable. Has GM rerouted new seat belt assemblies from their manufacturing of new vehicles to prioritize repairs of vehicles already on the road vs. keeping their sales pipeline full? I doubt it. Are dealers prioritizing vehicles on the road over those on their lots that are waiting to be sold. I doubt it. These are the very questions NHTSA should be asking of GM. GM is offering nothing to customers that purchased $70,000+ vehicles from them for the very reason that they have big 3rd rows. How are families of 5 or more supposed to function in the meantime? NHTSA should exert all available pressure on GM to prioritize on-road vehicles and do it now.

Oct 06, 2022

I HAD A INCIDENT ALMOST TRAGEDY YESTERDAY INSIDE MY TAHOE , PARKED ON MY PARENTS DRIVE WAY. MY KID 7 YEARS OLD WAS INSIDE TRUCK PLAYING AND SOMEHOW HE GOT BELT TANGLED AROUND HIS NECK WITH CAR SEAT BELT THE ONE THAT HANGS FROM ROOF USED FOR CAR SEAT. LUCKILY ONE OF MY DAUGHTERS NOTICED IN TIME TO LET ME KNOW I COULD NOT RELEASE BELT (I GUESS CHILD PROOF),SO I HAD TO CUT IT TO RELEASE MY SON. THANK GOD HE OK. I WOULD LIKE TO ADVISE CHEVROLET ABOUT THIS SITUATION SO THEY CAN CORRECT AND AVOID THIS FROM HAPPENING TO ANOTHER PERSON.

Apr 26, 2021

+ 1 more complaint for this component

POWER TRAIN,ENGINE

5 complaints

I am writing to formally document serious engine defects I have experienced with my 2021 Chevrolet Tahoe equipped with the 5.3L L84 V8 engine. 1.Crankshaft Failure: My Tahoe suffered a catastrophic crankshaft failure that required major repair/replacement. I am aware that GM has recalled certain vehicles equipped with the 6.2L L87 engine for crankshaft and rod-bearing defects. Based on my experience, the same or a very similar defect has also occurred in my 5.3L engine, which is currently not included in that recall. 2.Valve Lifter Failure: In addition, my vehicle has suffered from valve lifter collapse—a well-documented problem in 2021–2022 GM trucks and SUVs with both the 5.3L and 6.2L engines. This caused severe misfiring, drivability issues, and expensive repair needs. Why this is a concern: •Both failures occurred well before what would be expected of a modern engine. •The crankshaft failure raises a safety risk: sudden loss of propulsion while driving could lead to accidents. •The lifter issue is widely reported by other owners and has been the subject of GM service bulletins. •Taken together, these problems suggest systemic defects in the 2021 Tahoe’s 5.3L engine that have not been adequately addressed by GM. Requested Action: •I ask GM to extend recall and warranty coverage to include the 5.3L L84 engine in addition to the 6.2L L87. •I ask NHTSA to consider investigating whether the scope of the current 6.2L recall should be broadened to include 5.3L engines, given failures like mine. •At minimum, I request assistance in covering repair/replacement costs for both the crankshaft and lifter defects, which are clearly not due to normal wear and tear. Vehicle details: •Year/Make/Model: 2021 Chevrolet Tahoe •Engine: 5.3L V8 L84

Nov 20, 2025

I am writing to formally document serious engine defects I have experienced with my 2021 Chevrolet Tahoe equipped with the 5.3L L84 V8 engine. 1.Crankshaft Failure oMy Tahoe suffered a catastrophic crankshaft failure that required major repair/replacement. oI am aware that GM has recalled certain vehicles equipped with the 6.2L L87 engine for crankshaft and rod-bearing defects. oBased on my experience, the same or a very similar defect has also occurred in my 5.3L engine, which is currently not included in that recall. 2.Valve Lifter Failure oIn addition, my vehicle has suffered from valve lifter collapse—a well-documented problem in 2021–2022 GM trucks and SUVs with both the 5.3L and 6.2L engines. oThis caused severe misfiring, drivability issues, and expensive repair needs. Why this is a concern: •Both failures occurred well before what would be expected of a modern engine. •The crankshaft failure raises a safety risk: sudden loss of propulsion while driving could lead to accidents. •The lifter issue is widely reported by other owners and has been the subject of GM service bulletins. •Taken together, these problems suggest systemic defects in the 2021 Tahoe’s 5.3L engine that have not been adequately addressed by GM. Requested Action: •I ask GM to extend recall and warranty coverage to include the 5.3L L84 engine in addition to the 6.2L L87. •I ask NHTSA to consider investigating whether the scope of the current 6.2L recall should be broadened to include 5.3L engines, given failures like mine. •At minimum, I request assistance in covering repair/replacement costs for both the crankshaft and lifter defects, which are clearly not due to normal wear and tear. Vehicle details: •Year/Make/Model: 2021 Chevrolet Tahoe •Engine: 5.3L V8 L84

Sep 02, 2025

I was driving along the highway at 11pm when I the vehicle started shaking and I heard strange sounds coming from outside the vehicle. I pulled over to inspect and realized it was coming from the engine bay. The engine was making knocking, rattling, and belt slipping noises and the entire vehicle was shaking and the engine also stuttering. I was able to drive the vehicle to a nearby plaza where I had it towed the following morning. There were no warning signs, the vehicle ran properly up until this occurred. The dealership inspected it and told me the engine needs to be replaced and it was likely that a rod bearing that went bad. This happened nearly 2 months ago and I am still waiting for a new engine.

Apr 03, 2025

Engine failed while driving down the road. There was not prior warning signs to this issue. Vehicle was unable to accelerate. The safety of myself and husband were put a risk as we were traveling on an Interstate 12 in Baton Rouge, LA. The vehicle was inspected by Pine Belt Chevy and the cause identified as Camshaft and lifters failed in the engine causing a sudden deacceleration.

Feb 11, 2025

On three (3) different occasions, I put the SUV in Park and the car engaged, and the "P" lit up as engaged. As I took my foot off the brake, the SUV went into Drive and rolled. This last time, the SUV did this at my kid's school Ater putting it in Park, I took my foot off the brake and turned to get the kids unbuckled, and my foot accidentally pushed the gas pedal. The SUV went into drive on its own and the SUV drove over the sidewalk hitting a rock staircase causing an accident with all 4 kids in my SUV. This is the 3rd time, and I don't know what to do about it. Thankfully there were no kids in front of the SUV.

Apr 05, 2023

Crash: 1

UNKNOWN OR OTHER,ENGINE

5 complaints

My tahoe is throwing a low engine oil code and burns through about 2 quarts of oil in between oil changes. other tahoes of the same year make and model have been recalled for the same issue but mine was not.

Oct 29, 2025

We just recently had the cam shaft and lifters replaced, as the vehicle began experiencing a knocking sound. The repair was supposedly completed, and they gave the truck back. We took the truck back in within a week, bc we continued to hear the sound. They sent it back saying they didn’t hear anything after test driving it. Over the weekend the car shut off after beginning to shake uncontrollably. Now supposedly the camshaft bearing is gone, and the truck experience engine failure. I spoke with someone previously, as the issue being repaired hundred thousands of cars were recalled for the same issue. I was told that it wasn’t on the same line, even though my truck was experiencing the EXACT issue and fell under the years. We were placed back on the road with our family, with a vehicle

Sep 09, 2025

I’m reporting a transmission failure that occurred unexpectedly on my 2021 Chevy Tahoe/the diesel version has been recalled so I don’t know why all the other 2021 Tahoe have not been recalled for this issue . The vehicle began shifting roughly and slipping between gears, followed by a warning message and eventual inability to shift properly. I had it inspected by a family friend who owns a body shop , and I was told the transmission needs to be replaced at a cost of nearly $7,000. I am no longer under powertrain warranty, but this failure feels premature and unsafe for such a new vehicle. I’ve seen many other 2021 Tahoe owners report similar issues online including transmission failure, harsh shifting, valve body problems, and complete breakdowns . This seems like a pattern, and I believe it may warrant investigation. I’m asking NHTSA to investigate whether this is part of a broader transmission defect that poses a safety or reliability concern. Sudden shifting issues and inability to accelerate or reverse are dangerous for drivers and passengers. Thank you for your time and attention to this matter.

Jul 25, 2025

2 incidents of complete engine power loss while driving. Luckily was able to roll off road safely to curb. Dashboard glitch/flashing multiple/various message, including check engine, conditions not ideal to shift, etc. Would not re-start/shift when attempted. Tried disconnecting battery cable completely and re-connecting and that seemed to 're-set' the system and engine re-started. Incidents were about 30 days apart. "This battery reset" was tried because approx 1 year prior after leaving Tahoe parked at airport for a 7 day trip, it would not start, completely dead. Battery charge/jump would not work...watched youtube videos and someone said to try disconnect/reconnect cable and it worked to start it up at that time & did take it into Dealership after that incident and no-cost repairs were made for that issue. Called Chevy 3/25/25 on this power loss while driving issue to ask for information/assistance, they advised to take to dealership for diagnostic info/report and depending on result/cause might assist with costs to repairs. Appointment set for 3/28/2025 with Salem Oregon Chevrolet.

Mar 25, 2025

I have taken this vehicle two times to the dealers that sell Chevrolet. The first time it was there for 5 hours and nothing was done and the second time the service agent said there was no recall on this vehicle when obviously there is one.

Nov 26, 2024

SEATS

4 complaints

The head rest in the third row seat is broken and will not remain in the up position when the seat is up. This is causing a safety risk in that there is no safety for passengers in a rear end collision. There is already a recall that Chevrolet has issued for other Tahoe vehicles; however, my VIN number has not been added to that recall. I am requesting to have my vehicle's VIN number added to the already existing recall.

Oct 14, 2025

My vehicle is experiencing the same issue with the Third Row Headrests as outlined in a prior service bulletin (N202316750) for the same model year and make vehicle. My VIN number was not included in the bulletin, but I believe it should have been. The passenger side third row headrest will no longer stay up when the seat is engaged.

Mar 13, 2025

2ND row seat and 3RD ROW head rest will not stay up.

Feb 21, 2024

2021 CHEVROLET TAHOE. CONSUMERSTATED THAT THE THIRD ROW SEATS HEADREST DOES NOT STAY ON POSITION. THE CONSUMER STATED THE GRAPHICS ON THE VEHICLE WERE NOT CLEAR. THE DEALER WAS NOTIFIED AND AKNOWLEDGED THE FAILURE. THE CONSUMER REFERENCED RECALLS N212338110 AND N212333900.

Sep 09, 2021

ELECTRICAL SYSTEM,ENGINE

4 complaints

When driving the car just stops losing power then the car immediately shuts down and stops driving. I had to call a tow truck when it’s taken to the dealership the fuel pump power control module is faulty. This is a 2021 Tahoe they had to replace the fuel pump, power control module, and this vehicle should not have to be replaced. Chevrolet/GMC knows that these modules will make the vehicle stop wherever it is driving. I happen to be on a freeway going 70 mph and could have been killed. They have not put a recall out to have these modules replaced in any SUV. This is a danger for any driver on the road. This is a lawsuit waiting to happen for people. You know that they are aware this is happening because they paid for the tow and replaced this part that is not warranty now for free. Yes, great that it was paid for but thankful I did not lose my life as I could’ve been rear ended when my car shut down going that fast in the middle of the freeway I am begging that they please put a recall so no one gets injured or killed.

Aug 29, 2025

To Whom It May Concern, I am writing to formally report serious defects with my 2021 Chevrolet Tahoe (VIN: [XXX] ) and to request assistance with repair costs. Approximately six months after purchase, when the vehicle had about 22,000 miles (I bought it used with around 19,000 miles), the battery and electrical system failed. I brought it to the dealer and was told there was no issue; they only performed a jump start. Two days later, the vehicle broke down in the middle of the road. I had to pay for a tow truck and replace the battery completely out of pocket. More recently, at about 92,000 miles, the vehicle developed severe engine problems. A certified mechanic diagnosed collapsed AFM lifters and camshaft damage. The repair requires OEM GM parts and costs approximately $4,500. This issue is widely reported by other GM owners with 5.3L AFM engines and is known to be a manufacturing defect, not a maintenance problem. Please note that my Tahoe has been well maintained, with oil changes always performed on time and using the correct oil and service intervals recommended by GM. Despite this, the vehicle has experienced repeated and costly failures that create unsafe driving conditions. I kindly request that GM review my case and provide assistance with covering the repair costs or reimbursement, given that these issues are the result of known defects and not owner neglect. I look forward to your prompt response. Sincerely, [XXX] [XXX] 33032 [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Aug 22, 2025

Car stopped while in motion, engine shutdown and could not be put into neutral to move vehicle out of traffic. Car had to be towed away. Only 37 k miles. This is the Second time this has happened in traffic posing a major safety hazard. Fuel control module was what shut down the car while driving the first time. Now it has failed again

Aug 04, 2025

I am experiencing loss of power just like the recall shows for campaign 22V036000 powertrain. Engine stall in the middle of the street just like it shows for the fuel system 21V73 9000. I have stalled in the middle of the street including today four times and a month. The dealership can’t seem to find what’s wrong. Nor other places. I don’t think they are looking hard enough at the dealership. I almost got killed by another car going at least 65 mph while I was stuck in the middle of the street at a stoplight. These are all different days. While working and people in my car.

Jun 10, 2024

ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM

4 complaints

2021 Chevrolet Tahoe original owner. Fuel control module failures. 1. Failed on 6/29/21 at 5,068 miles. Dealer replaced with GM Part #13537053. 2. Failed on 8/15/22 at 12,130 miles. Dealer replaced with GM Part #13544060 3. Failed on 8/1/25 at 41,247 miles. Dealer replaced with GM Part #13554821 On each failure, vehicle was unable to shift to neutral, power remained on, electrical component began shutting down to conserve power, left stranded and required towing with rear wheels being dragged locked up onto tow truck. Once power was shut down, could not operate windows or lock doors other than keyed driver's door. Th entire failure mechanism puts the driver in an extremely unsafe situation. Recall notice #21V739000 was issued on 9/23/21 with to impacted notified owners on 10/14/21. Did not receive this notification since first failure was prior to recall and assume GM considered vehicle repair completed. Note that the fuel module part number has changed 3 times in my case, but Part # 3554821 replaces 5 other listed part numbers. Is this the 6th iteration or of this part? What is the root cause of the fuel module failure? Is it the module itself failing or an electrical issue that causes the fuel module to short out and fail. GM/Chevrolet is not solving this issue. With 3 failures of the same component, this is a lemon and I have no comfort or confidence using this vehicle. When will the next failure occur and what unsafe situation will this leave me stranded in? Read this issue applied to 2021 and 2022 GM full size SUV's and now reading issues through the 2024's. Unacceptable and poor quality. GM needs to be held accountable to solve the root cause of these failures and stop putting a replacement band aid on the problem.

Aug 08, 2025

The fuel pump power control module failed. We were driving on the interstate going around 75mph with traffic. The car suddenly lost power dropped to 60, 40, 20 in 5 seconds. We barley made if off the hwy`s left side when the Tahoe died. Would not start back up and locked in park. Had to be towed on a flat bed dragged up the bed and brought to the Chevy dealer who confirmed the fuel pump power control module failed and replaced under warranty. We have a 2021 Tahoe, there is a recall for this part but it did not include our vin. Really scary breakdown and could have been hit by another car.

Jan 19, 2024

Sudden engine shutdown in the middle of traffics. Vehicle was towed to a Chevrolet dealer. Chevrolet dealer replaced fuel pump power control module.

Jul 12, 2023

I was driving the vehicle and it suddenly lost power - going from 55 MPH down to 0 then the engine just stopped. No warning lights went off, no stalling, no engine noise- completely lost power. Would not start after that for 20 minutes. Started after 20 minutes- and ran fine -like nothing happened. Had it towed to dealership where they diagnosed the problem as electrical. Two weeks later still waiting for the part. Dealer says it could be up to 3 months before they could locate the part.

May 03, 2023

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

4 complaints

Check Engine Light Came On. Upon Diagnosis', the engine is misfiring, lifters are not performing correctly and there are critical engine alerts and an estimate of 11,000 to fix. 2021 - 83,000 miles v8 - 5.3 NOT the 6.2 and no one will help me bc my power train expires. I am the only owner. Second brand new Tahoe ai bought from this dealership and they are doing nothing to help.

May 17, 2025

As a traffic crash reconstructionist, the issue is a MAJOR SAFETY ISSUE. My wife was exiting a residential driveway when the vehicle started to stutter and immediately shut down with no power or any capability to get the vehicle off the road. The shutdown caused the blockage of a residential street on a Friday afternoon, until the correct tow truck arrived. This was due to the fact the vehicle could not be moved due to not being able to start the engine nor the ability to place the vehicle into neutral, without starting the engine or crawling un der it with tools. It was determined the fuel module went bad. There was no warning of the failure of the component. Luckily the shut down of all components of the vehicle did not occur on a high speed or highly traveled road since I did not have any control of the vehicle after the fuel module failed. This is not the first report of the issue to NHTSA. Hopefully something will happen to find a fix to put the vehicle in neutral without tools, for the safety of the motoring public.

Mar 11, 2024

Vehicle is sputtering and jerking while driving When slowing to a stop vehicles engine will shut off. I do know that the 2021 Tahoe has recalls on the fuel pump issues but not sure why my vin number isn’t covered under this recall. This is a 2 year old vehicle and already has recalls on this year model on its fuel pump. At this point it is barely driveable and is a danger for myself and my family to drive.

Oct 25, 2023

I encountered the same issue which most of the other complaints on here saw where the engine lost power (due to one cylinder misfiring) suddenly and it was due to a faulty lifter in the engine. Fortunately, I was able to limp the vehicle back to my house where it could be towed, but had it been worse it could've stalled in an intersection and I'd be unable to move the vehicle due to how the engine must be running in order to put it in Neutral. GM really needs to recall the engines that are affected by the lifter problem as this issue is showing up on several forums online along with this site. My engine date code falls within their TSB, however they only replaced one bank due to my mileage being over 8,000 miles. That means that I most likely get to look forward to more issues soon with the other bank of lifters as they're of the same faulty design.

Apr 26, 2022

ENGINE,FORWARD COLLISION AVOIDANCE

4 complaints

On April 25th, 2025 we were taking our kids to their after school activities when the SUV started to shake, and accelerate very fast by barely pushing the gas pedal, the ETS light along with the forward collision warning also appeared on the dashboard along with the check engine light. This prompted my husband to get our vehicle towed to the nearest shop close to the street where our vehicle started having problems. After several days of diagnostics the shop let us know our vehicle needed the following repairs: Bank One lifters replacement, head gasket service, and a water pump replacement, we ok'd the repairs. Although these components were replaced, we were informed on May 15, 2025, that the vehicle continues to misfire and now requires a camshaft replacement as well. The total cost of the repair has now risen from $5,182.16 to $13,549.79, which is a significant financial burden as the vehicle is just outside of warranty coverage. We are aware that there is an active recall covering similar issues for 2021–2024 Chevrolet Tahoes equipped with 6.2L engines. However, our 5.3L engine model is experiencing the same mechanical failures, including misfires, knocking noises, low RPM idling, and performance degradation. There is growing evidence that the valve lifter issues are not limited to the 6.2L engine variant. Our experience—and the experiences of others reported online—suggests that the 5.3L L84 engine may also suffer from the same design or manufacturing flaws. We respectfully urge NHTSA to investigate whether this issue warrants expanding the scope of the existing recall to include the 5.3L engine models, and we ask that GMC/General Motors be encouraged to provide assistance. Given the severity and known pattern of these issues, we believe GMC should cover at least 75% of the repair costs, or ideally, offer to perform the repair at no charge. Thank you for your time and consideration.

May 15, 2025

We had a failed lifter that caused bent rods which caused scratches on the crank shaft which caused us to have to replace the engine. After a simple internet search I have found the lifter failure is very common with gms 5.3 v8. We were told oil needs to be changed at least every 5000 miles although the vehicle prompts you around 7000.

Apr 27, 2025

On [XXX] I was driving in the [XXX] in El Paso Texas at about [XXX] I was about to enter [XXX} and the vehicle suddenly stopped with no warning! I was able to pull to the side and put the blinkers because the traffic was heavy and could of had a vehicle crash into me if I had not maneuver the vehicle quickly(My two daughters where with me in the vehicle). The vehicle prompted to start the vehicle, which I did so and continued my way. As soon as I was able to get into the [XXX] the check engine light turned on, and the forward collision warning message on the display. I stopped to my nearest Autozone to get some help as the vehicle started to make a noise too. They connected their computer and told me that the vehicle was given a message of a faulty cylinder, they told me I should not move the vehicle until I had it inspected on a GM dealership. Which I did on Friday December 20, 2024, I am waiting for a full diagnostic to see what had happened to my vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Dec 22, 2024

We purchased this vehicle on 11/28/20, and on 12/10/20 began receiving multiple error messages and loss of power on the accelerator. Shortly after the error messages began I was no longer to even start the vehicle. It needed to be towed to the dealer and eventually required a full engine replacement, and was out of service for 22 days. On 5/19/21 I was getting on the highway with my wife and 3 young children and began receiving many of the same error messages. The car was brought to the dealership the following day and I found out that this was another major engine issue. They need to order several parts, one of which is on backorder. As of 5/24 it has been out of service for an additional 5 days, bringing the total up to 27 days out of service, and there are currently 4800 miles on the car.

May 24, 2021

STRUCTURE

4 complaints

Sunroof continues to collect water in the drain. I have had it blown out but it continues to happen. It is a matter of time before it begins to leak into the truck. In my research, this is an extremely common problem/design flaw.

Jul 23, 2024

There is a serious cabin air pressure issue in this vehicle. When driving at any speed with the windows up, there is a booming inside the cabin, as if the passengers are inside of a subwoofer. My theory is that the headliner panel has too much flexibility in it due to the ceiling air vents. When driving, it is likely the headliner is bouncing up and down, creating the booming air pressure. Within 2 weeks of delivery of this new car and daily driving, my passengers and I developed serious ear issues which we attributed to the car. It got to the point where I would immediately have pain and ringing in my ears just driving a very short distance. None of my other cars including SUVs cause or have ever caused this issue. It is important to note that with all 4 windows rolled down, the problem does not happen. It's only when the windows are up. I have the LS trim without the sunroof.

Jul 15, 2021

Injuries: 2

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the interior paneling was loose which exposed the electrical wiring and allowed outside wind sound inside the vehicle. The vehicle was diagnosed but was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 5,230.

Jul 12, 2021

2021 Chevrolet Tahoe. Consumer stated that the bumper on vehicle began to turn yellow.

May 27, 2021

ELECTRICAL SYSTEM,UNKNOWN OR OTHER

4 complaints

WHAT FAILED: Main Radio. SAFETY CONCERNS: GM sent an over the air update to car around July 5, 2024 and the update broke the whole radio system to my car. I now have no access to OnStar, bluetooth for phone safety, maps, blinkers on side mirrors, radio etc. Dealer mentioned it is a very common problem with this particular GM product and the over the air update to cars. When I asked to turn this feature off so it doesn't happen again it is not an option. The Chevrolet Dealer and a sound system specialist has inspected vehicle. Sound System specialist said this part may only be replaced by the dealer as it is the high end radio system. There was no warning of the update happening. The car was in great condition until this update was pushed through in the middle of the day. Now I am being quoted $2000 to fix it with no guarantee that it wont happen again.

Jul 15, 2024

My tahoe has shut off several times. I am sometimes at a red light and it shuts off and won't turn on or itll eventually turn off but it has a ton of errors on the screen. This has happened about 6 times. Today, April 6th, it wouldn't even start. It has started at the dealership but the screens are blacked out. Also the back hatch is not working as well and it randomly happened. I just purchased this vehicle in September of 2022. And it only has about 40k miles on it. The first time it shut off on me it had less than 40k miles.

Apr 06, 2023

Received an Over-the-Air update that rendered my vehicle unless. My vehicle would no longer start, or power on, or power on in accessory mode. It was stuck in Park, the electronic Parking Brake could not be disengaged, the door locks could not be operated and left unlocked, no lights, no warning lights, the emergency lights did not function, no horn, and most everything else. The only things still working were the radio, the driver's side powered seat would move, and the light came on for the Parking Brake. The battery was fully charged. I also started receiving messages through my Chevrolet APP that the vehicle had no air in the tires, no oil in the engine, and many other items that needed servicing. I am not sure what exact components or computers have failed yet. GM could not find any dealer to render aid and come to my location to reprogram the vehicle. It had to be towed to a dealer. With the electronic Parking Brake engaged, GM had a hard time trying to find a tow truck that wouldn't just drag the vehicle down my driveway and onto a flatbed.

Dec 12, 2022

VEHICLE WILL NOT START. ONLY 6900 MILES. BATTERY FINE, LIGHTS AND RADIO WORK, WINDOWS AND TAILGATE WORK. CAR TURNS OVER, BUT JUST WON'T START. READ MANUAL, DID EVERYTHING SUGGESTED. CLEARLY AN ELECTRONIC ERROR. AND, BECAUSE VEHICLE COULD NOT BE STARTED, IT COULD NOT BE PUT IN NEUTRAL. TOW DRIVER HAD TO DRAG CAR ACROSS PAVEMENT ON FLATBED. COULD NOT BE GOOD FOR BRAKES OR ANYTHING ELSE DOWN BELOW. WHEN ARRIVED AT DEALERSHIP, COULD NOT GET TAHOE OFF FLATBED. WINCH ONLY PULLS UP ONTO FLATBED, DOES NOT PUSH BACKWARDS. OILED THE FLATBED AND SHOOK THE ENTIRE TOW TRUCK BODY TO TRY TO GET IT TO SLIDE DOWN. NO IDEA WHY THIS HAPPENED. BUT A COUPLE OF MONTHS AGO SAME THING HAPPENED TO A FRIEND'S GMC VERSION. CLEARLY ELECTRONIC FAILURE IN BAND-NEW CAR.

Apr 12, 2021

STEERING

3 complaints

At low speeds the steering wheel locks up and become very difficult to turn. This has been an issue for a few years and only happens randomly. Reviewing N212333901 it is the same symptoms but for some reason my VIN is not covered in the recall while is the same year as affected vehicles (2021 Tahoe Z71)

Sep 08, 2025

Power steering has failed completely, can not turn at all unless its slightly.

Nov 05, 2022

2021 Chevy Tahoe/ Service Steering Column Lock contnues to message after each start.milage 900 miles.My concern is that steering failure could occur while in transit. Dealer was unable to resolve issue.

Jun 28, 2021

FUEL SYSTEM, GASOLINE,POWER TRAIN

3 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the vehicle displayed "Reduced Power," and the rear wheels started to lock-up. The contact was able to keep control of the vehicle and continued driving. The vehicle was taken to the dealer, who completed the repair under NHTSA Campaign Number: 24V797000 (Power Train). The contact stated that after the recall repair, while leaving the dealer and driving approximately 10 MPH, the vehicle veered off to the right and ended up partially in the next lane. The contact stated that the vehicle unintendedly shifted into neutral, and the message to "Press Start Again" was displayed. The contact was able to restart the vehicle and parked the vehicle in a nearby parking lot. The contact restarted the vehicle and drove back to the dealer. The failure recurred twice while returning to the dealer. The dealer diagnosed that there was a fuel pump drive failure. The vehicle was not repaired. The manufacturer was informed of the failure and confirmed the VIN was no longer under NHTSA Campaign Number: 24V797000 (Power Train). The manufacturer opened a case. The failure mileage was approximately 69,000.

Jul 09, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while attempting to start the vehicle, the vehicle failed to start as intended. The check engine warning light was illuminated. The contact attempted to start the vehicle several times, however the vehicle failed to start. The contact stated that the vehicle was parked in an underground parking lot. The contact stated that four tow trucks attempted to tow the vehicle; however, the transmission had to be disconnected from underneath the vehicle to remove the vehicle from the underground parking garage. The vehicle was then towed to the dealer where it was diagnosed with a failed fuel pump power control module. The contact was informed that the fuel pump power control module needed to be replaced. The vehicle was repaired. The contact was informed of NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included in the recall. In addition, the contact stated that when the vehicle was retrieved from the dealer after the repair, the failure reoccurred. The contact stated the vehicle was started, and the vehicle was driven to the residence without the failure reoccurring. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 49,064.

Feb 20, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the vehicle stalled without warning. The contact stated that the transmission independently moved into park (P) and the gear shifter would not move after several attempts. The vehicle was towed to a dealer who informed the contact that they could not repair the vehicle because they did not have the adequate tool to unlock the transmission. Upon receiving the tool days later, the dealer diagnosed that water had leaked into the fuel tank, which led to the failure. The manufacturer was notified of the failure and advised the contact that they would follow up. The contact was still awaiting a call back from the manufacturer. The vehicle was not repaired. The failure mileage was approximately 27,000.

Oct 13, 2022

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM

3 complaints

Stopped for gas, then proceeded to leave store, the check engine light came on, and car immediately shut off while on the highway going ~25mph. Car would not turn back on, and then lights for fuel machine error started coming on. Car sat there trying to turn on, lights off, and then would say push start button, but nothing happened. Car began to shake and continued to try to turn on, yet nothing happened. Car was towed to home, sat for an hour and then started again, check engine light remains on.

Aug 07, 2024

We were driving down the road and as I tried to accelerate the car would not go. Then I realized the car said push to start. My husband tried to push the neutral button and told me to restart it but I said you have to push the brake. All this is happening as we are coasting down a main road with speed limits of 55mph and my family is in the vehicle (including 2 toddlers in the back seat). Once we coast to a gravel area off the road I push the brakes and try to restart. My dash goes all black and I try to restart. It tells me battery low push to start. The starter engages and stays engaged until I push the start button again to turn off. The screen tells me it is shutting down functions to save battery. The check engine light is on. We tried 3x with same results. Finally we get out and my parents come to us. Within 15 mins of the initial incident, my husband and dad get in and start my vehicle. My dad suspected the fuel pump. The fuel was right under 1/4 tank but not low enough for the fuel light to be on. They drove to the fuel station, approximately 2 miles away, filled up the tank and drove it to an auto parts store who connected it to a diagnostic machine and it read fuel pump. They drove it back to my home, approximately 2 more miles. The check engine light is still on. I will call the dealership tomorrow. The vehicle has 23,000 miles and is still under manufacturer warranty.

Aug 27, 2023

We have owned this 2021 Chevrolet Tahoe for a little less than a year. Since acquiring this vehicle, there have been multiple safety recalls and we have had to get the vehicle serviced 3 times due to electrical issues. Now for the major safety issue, was out of town waiting at a red light in a turning lane. As we were waiting, the Tahoe spontaneously turned off. All of the indicator lights on the dashboard were illuminated and my husband tried to restart the car but the engine just kept turning and the car would not start. We put the hazard lights on and wanted to get the vehicle out of the road where there was active traffic. However, the vehicle was unable to be shifted to neutral so we were stuck and also important to note the hazard lights were not working. We towed to the nearest dealership and tow driver had to apply WD40 on the ramp to get the truck off since it wouldn't shift to neutral. At the same time, my husband received an email from OnStar "An issue with the Engine and Transmission System in your 2021 Chevrolet Tahoe has been detected." Now being told by dealership this was caused by a fuel pump module cut off, causing the car to go into "limp mode" so who knows what is true. I do not feel safe driving this car nor having my kids in it. This would be a very different conversation if this happened on a highway. This vehicle should be recalled because someone gets killed.

Jun 16, 2021

FORWARD COLLISION AVOIDANCE

3 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that after coming to a stop, upon depressing the accelerator, the vehicle experienced phantom braking. The contact stated that the Forward Collision Avoidance warning light illuminated, and the vehicle inadvertently stopped with no vehicles or objects nearby. The contact stated that the Forward Collision Avoidance system was deactivated to prevent the failure from recurring. The dealer was notified of the failure, but the vehicle was not taken to be diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 8,500.

May 31, 2023

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving 65 MPH, the vehicle experienced phantom braking and stopped suddenly. The adaptive cruise control warning light was illuminated. The contact stated that after several minutes the vehicle started operating normally. The vehicle was taken to the dealer however, no cause for the failure was found. The manufacturer was not contacted. The failure mileage was 10,000.

Feb 15, 2023

TOOK DELIVERY OF VEHICLE ON FRIDAY, JANUARY 29TH, 2021. WHILE DRIVING HOME FROM PLYMOUTH, MA TO CONCORD, NH, I WAS USING THE ADAPTIVE CRUISE CONTROL. I WAS TRAVELING BETWEEN 65MPH AND 70MPH. ROADS WERE COMPLETELY DRY, THERE WERE NO OTHER CARS NEAR ME, AND THERE WERE NO OBSTACLES IN FRONT OF ME. I WAS TRAVELING IN THE MIDDLE LANE OF A THREE LANE HIGHWAY. OUT OF NOWHERE, THE BRAKES WERE FORCEFULLY APPLIED BY THE COMPUTER WHICH NEARLY BROUGHT THE VEHICLE TO A STOP IN THE MIDDLE OF THE INTERSTATE. AFTER REACHING MY DESTINATION I NOTICED THAT THE CAMERA IN THE DRIVER SIDE MIRROR WAS NOT FUNCTIONING. CONTACTED DEALER THE FOLLOWING DAY AND RETURNED BACK TO DEALERSHIP TO HAVE THE VEHICLE REPAIRED (NEARLY 2 HOUR DRIVE). DEALER STATED THAT THE ISSUE WITH THE CAMERA AND THE ISSUE WITH THE AUTOMATIC BRAKING WERE RELATED. PICKED VEHICLE UP ON FEBRUARY 8TH AFTER VEHICLE WAS SUPPOSEDLY FIXED. ARRIVED HOME AND DISCOVERED SAME ISSUE WITH CAMERA NOT FUNCTIONING. TOOK TO DEALER IN CONCORD, NH TO TRY TO REPAIR AGAIN ON 2/15/21 AND PICKED UP ON SAME DAY. DEALER FOUND LOOSE PIN IN CONNECTOR. DEALER STATED THAT THE CAMERA HAD BEEN REPLACED IN OCTOBER 2020 BEFORE I EVEN OWNED THE VEHICLE, SO SOMEONE KNEW THIS WAS AN ISSUE. TOOK VEHICLE ON A DRIVE ON 2/17/21. ALERT ON DASH NOW SAYS 'SERVICE DRIVER ASSIST SYSTEM.' I DO NOT FEEL SAFE DRIVING THIS VEHICLE AND MY WIFE DOES NOT FEEL COMFORTABLE DRIVING IT OR LETTING OUR TWIN 3 YEAR OLD BOYS RIDE IN IT. I HAVE A CASE OPEN WITH GENERAL MOTORS ON THIS BUT THEY HAVE DECLINED TO HELP WITH EXCHANGING THE VEHICLE. I'M THANKFUL THAT NOBODY WAS RIDING WITH ME AND THAT NO CARS WERE AROUND AND THAT IT WAS NOT SLICK WHEN THE BRAKING INCIDENT OCCURRED BECAUSE IT CERTAINLY WOULD HAVE CAUSED AN ACCIDENT. PLEASE HELP ME.

Feb 22, 2021

STEERING,POWER TRAIN,ENGINE

2 complaints

The rear differential makes a rubbing or humming noise when turning left/right at slow speed especially when it’s cold.

Nov 11, 2025

MY WIFE WAS DRIVING OUR NEW TAHOE (5,101 MILES) DOWN A NEIGHBORHOOD STREET, STOPPED AT A STOP SIGN AND HIT GAS TO PROCEED INTO A TURN AND ENGINE COMPLETELY TURNED OFF. SHE WAS ABLE TO GLIDE TO A STOP IN FRONT OF A HOUSE, BUT IS TERRIFIED WHAT MAY HAVE HAPPENED IF SHE WAS TRAVELING FAR FROM HOME OR ON THE INTERSTATE AT HIGH SPEED WITH THE SAME OCCURRING. CAR WOULD NOT TURN OVER/START AFTER STOPPING AND HAD TO BE TOWED TO DEALERSHIP. OCCURRED ON A NEIGHBORHOOD STREET (ASHLEIGH ROAD IN FAIRFAX, VA)

Feb 24, 2021

ENGINE,FUEL SYSTEM, GASOLINE

2 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving on two occasions at various speeds, the vehicle stalled. There were no warning lights illuminated. The vehicle was not able to restart. The vehicle was towed a dealer where it was diagnosed that he fuel control module needed to be replaced. The vehicle was repaired, but the failure reoccurred approximately 10 months later. The manufacturer was not notified of the failure. The failure mileage was approximately 67,438.

Jul 31, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving 5 MPH in the driveway, the vehicle stopped and stalled. The vehicle failed to restart. The vehicle was towed to an independent mechanic who determined that the fuel pump control module needed to be replaced. The vehicle was repaired. The contact called the local dealer and was informed that there were no associated recalls. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the vehicle was not included in NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The failure mileage was approximately 30,000.

Nov 21, 2024

STEERING,AIR BAGS

2 complaints

The safety system needs serviced/repaired and the alert has been present for months, and investigated by GM licensed dealership but not repaired, after several requests. The safety of drivers and passengers has been neglected and the high risk for injury and death while occupying the 2021 Chevy Tahoe. Also on 06/11/2025 the EPS Power Steering system failed, with the system alert showing up on the driver's dash. This is a cause for major concern and is noted that 2021 Chevy Tahoe vehicles have an outstanding recall for those affected. The licensed GM dealership was contacted on 06/12/2025 and again, denied the repair and/or ability for the vehicle to be operated safely. The Tahoe has been taken to the shop over the last 12-16 months and as of this day, occupants of this vehicle are at very high risk for injury and death due to the service safety system alert and the failed EPS system. I am compelled to take additional action, to prevent injury and death unless these issues are able to be immediately resolved.

Jun 12, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while operating the vehicle, the warning message "service restraint system" was displayed and the air bag warning light was illuminated. The vehicle was taken to the local dealer who diagnosed that the electrical wiring under the front driver’s side seat was damaged from moving the seat back and forth. In addition, the contact also indicated that while operating the vehicle the message "Power Steering" was displayed and the steering wheel became difficult to turn in either direction. The cause of the failures was not yet determined. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 140,000.

Mar 20, 2023

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE

2 complaints

Truck want go over 62 miles heater comes on full blast truck reduces speed while drive and transmission want shift 4wd error comes on service climate system comes on the power steering error comes on the service esc and washer fluid system error comes on it seems like an electrical manufacture error with the truck

May 29, 2025

The dashboard for the vehicle loses all power and does not regain power/connectivity. I've had this problem "fixed" 5 times by the Chevy dealership and the issues continues. They've replaced the entire dash, checked electrical components, changed out the electrical bank, and the issues continues. Driving down the road at 65 mph to have your dash go out is not only terrifying but extremely dangerous! I have no idea how fast I'm going, how much gas I have, no situational awareness related to vehicles that are close by... the ENTIRE dash goes out. This is a brand new 2021 Chevy Tahoe... I bought it with 4 miles on it and within a month of the purchase, the vehicle had this problem.

Sep 26, 2022

POWER TRAIN,VEHICLE SPEED CONTROL

2 complaints

Transmission control module failed. I was driving at about 40 mph on a 4 lane street and it begin to feel like something was pulling the steering wheel to the left and I could not control the speed. I then pulled off into a parking lot and was facing a drainage ditch and needed to back the car into a space out of the way, it would not go into reverse. My husband met with me and was able to drive it forward to drive it to a dealership. The diagnosis was a failed transmission control module that cost us $2,478.

Mar 22, 2025

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving approximately 65 MPH with the adaptive cruise control activated, the vehicle stalled and lost motive power. The contact indicated that after the adaptive cruise control reduced the speed due to a nearby vehicle instead of resuming the intended speed, the vehicle lost motive power in the middle of the busy highway and would not restart. The tow truck was called to the scene and discovered that the transmission could not be shifted into neutral(N). The vehicle had to be dragged onto the flatbed of the tow truck. The vehicle was towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 14,608.

Sep 07, 2022

AIR BAGS,SEAT BELTS

2 complaints

Service safety restraint system notification is coming on, vehicle has 45,000 miles on it.

Jan 16, 2025

CONSTANT RECURRING "SERVICE SAFETY RESTRAINT SYSTEM" WARNING, MOSTLY WHEN PASSENGER IS SEATED.

Nov 26, 2020

SUSPENSION

2 complaints

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while turning left or right, there was a grinding and scratching sound coming from underneath the front-end of the vehicle. The vehicle was taken to the dealer to be diagnosed and the contact was informed that the wheel was rubbing against the wheel well. The dealer completed a tire adjustment. The contact noticed over time that the tread on the front tires had been wearing very quickly. The vehicle was returned to the dealer who determined that the lower control arms had failed. The lower control arms were replaced, and the front wheels were re-aligned. The failure persisted causing the contact to have the wheels aligned 6 to 8 times. The manufacturer was made aware of the failure. The approximate failure mileage was 32,000.

Sep 19, 2023

I’ve been dealing with an alignment issue since last June when I took in my 2021 Tahoe z71 with air ride suspension. It’s chewed up the stock tires at just 25,000 miles. It’s came out of alignment 3-4 times since then and Chevrolet is doing nothing about it. I’ve spoke with others that have the same vehicle and the same problem. I just purchased tires for $1,100 just over a month ago and I checked the alignment last week and it was out again after City Chevrolet fixed it on January 17th of 23.

Apr 14, 2023

ELECTRICAL SYSTEM,AIR BAGS,SEAT BELTS

2 complaints

I purchased a 2021 Chevy Tahoe from Autonation Chevrolet 11-3-2020. I have taken my Tahoe to the service department numerous times - as my truck has had a stubborn service safety restraint system warning error code that continues to come on and off. I have taken it to have all recalls serviced as per recall request. The service safety restraint system warning code has not been corrected after more than 5-6 visits if not more as not all visits have been logged properly. I have had this truck for less than 12 months and have experienced too many conflicting issues. I do NOT feel safe driving my Tahoe with the SRS light on. There's obviously a malfunction that you all have not been able to figure out. This is extremely dangerous!! What if I were to get involved in an accident or collision and my airbags do not deploy? I may have a problem with the airbags themselves, a loose wire, a faulty seat belt buckle, or a problem with the engine control unit which is causing the airbag warning to come on. There is obviously a major problem. I am putting my children and family at risk. I have not received an email or phone call from anyone at Autonation Chevrolet. The service safety restraint system warning code has come on and off 7x since I was last at the dealership (9/10/21) and I have pictures to support.

Sep 15, 2021

BRAND NEW VEHICLE BOUGHT TWO WEEKS AGO. I AM GETTING A SERVICE SAFETY RESTRAINT SYSTEM MESSAGE INTERMITTENTLY.

Sep 29, 2020

POWER TRAIN,FUEL/PROPULSION SYSTEM

2 complaints

After turning off a major highway (65 mph) onto a side road after driving for approximately eight hours, the transmission shifted into N...on its own. The engine continued to run but the vehicle would not move. We could not shift into P, R or D. When attempting to shift into P, R or D, an error message appeared on the dashboard that said "Conditions not right for shifting." We turned the vehicle off and then back on and the error cleared. The vehicle continued to drive "normally" for another two hours and the end of the journey. Had this happened in the middle of heavy traffic, a deadly accident could have occurred. Mileage on vehicle is 4,900. Date: 13 July 2021 at 1800 hours. Dealer has been notified but has taken no action to date. There were no warning signs or messages prior to the incident. I'm guessing it is a sensor or software problem related to the engine/transmission. There is a paragraph in the Owner's Manual that states: "Under certain conditions, propulsion will be disabled. Try restarting after the ignition has been off for two minutes." It offers no other explanation as to what "under certain conditions" means.

Jul 14, 2021

May 6, on vacation, sudden engine failure, valve lifter and lifter rod. GM told dealer only to replace lifters on one side, Cyl 5 was problem. May 24 car ready, pickup and 68 miles later same problem while on I95 in SC. Did not trust engine and drove in right lane. GM played Russian roulette with our safety and that of other people on road. Sudden engine failure can result quickly in accidents with possible casualties at highway speeds. After pulling of I95, called GM Road assistance. Towed to dealer. They were of no help. Family member from CHS , SC send trailer to bring us all the way home in New Smyrna Beach Fl. While on phone with GM Road assistance we idled the engine to keep cell phone charged. Suddenly engine stopped and on restart heavy smoke came from tail pipe. May 25 car delivered to dealer in NSB where we bought car. May 27 they informed us same lifter/rod problem occurred on other side. Look at Chevroletforum.com and you will see 2021 6.2 engine having these problems within 8000 miles. Have been in contact with GM customer Assistance Center since May 14. We do no longer trust this engine. GM already decided to redesign the lifters as they are aware of the problem. NO recall has been issued yet. Consider this a serious highway safety issue. Do not consider the car a lemon, but yes the engine sure is.

May 29, 2021

ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving 20 MPH into the driveway, the engine seized. The contact stated that the service traction, service ESC, and engine warning lights were illuminated. Upon research, the contact associated the failure with NHTSA Action Number: EA25007 (Engine, Engine and Engine Cooling). The vehicle was towed to the local dealer, where it was diagnosed, and DTC: P0300, P050D, and P0302 were retrieved. The vehicle was not repaired. The manufacturer was notified of the issue and offered to help with the cost of the repair. The approximate failure mileage was 64,572.

Dec 18, 2025

STEERING,POWER TRAIN

1 complaint

While driving and turning left and right, and while cold and turning It does a grinding/groan noice, and recently while driving it did that, and It started losing speed and the grinding worsening and I was losing control of the vehicle. Putting the vehicle in Auto makes the groan/grind worse.

Dec 03, 2025

ENGINE AND ENGINE COOLING,ENGINE

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at 70 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The message “Service Electronic Stability Control" was displayed, and the traction control warning light and the check engine warning light were illuminated. The failure persisted while driving, and the vehicle failed to exceed 50 MPH. The vehicle was taken to an independent mechanic who diagnosed that the lifters had failed, the camshaft had failed, and there was a misfire in cylinder #5. The vehicle was not repaired. The vehicle was towed to the residence and had not been driven since. The manufacturer was not notified of the failure. The failure mileage was approximately 143,000.

Nov 13, 2025

POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE

1 complaint

On the morning of 1 Oct, I had left the house here in Cedartown GA to head to a meeting in Atlanta with a customer. I had started the truck 15 minutes before departing just as we have always done to our vehicles over the years to allow them to warm up properly. I departed Doyle Rd onto Hwy 27 South heading towards interstate 20. About 15 miles from the house I was at a steady cruise speed of 45 MPH, no traffic, acceleration or deceleration and the stability control system light came on, one second later the engine light came on and the engine all of a sudden started making a loud grinding and clunking noise. I was on the inside lane so let the car pass next to me and started to pull over onto the shoulder of the road. I immediately shut off the truck, popped the hood and got out to inspect what might have happened. There was no smoke, I checked all the fluids and all were at the normal ranges. The engine oil was at its full mark as well. The oil was just changed a month early and still of the same color as it was new. After checking, I got back on the truck, attempted to start and it ran for a few seconds then I immediately shut it off after hearing again the loud noise. A Polk county police officer stopped to check on me and offer assistance as well as some tow companies to call. Eventually after about at hour a tow truck showed, we tried to momentarily start the vehicle so it could be put in neutral but the engine had locked up. I’m glad I got off the road when I did, otherwise I feel I could have been driving and experienced that sudden lock up and loss of control which could have been a serious accident with log trucks up and down that highway all day long. This vehicle is my wife’s primary vehicle and always has been maintained to a T just like all of our GM vehicles have. My daughter just graduated and drives our passed down 2005 Tahoe with over 300k miles that we bought in 2006. This has never happened to us and I feel it is a serious safety issue on the 6.2

Oct 13, 2025

VEHICLE SPEED CONTROL,ENGINE,FORWARD COLLISION AVOIDANCE

1 complaint

I drive a 2021 Chevrolet Tahoe. This occurrence has happened on three separate occasions and each time it was raining outside. The first occurrence, my vehicle was running and parked in the rain after driving approximately 5 miles. While parked my check engine light came on with a series of warnings: service ECS, service traction control, forward collision system unavailable, reduced acceleration drive with care. Two days later it went away. The second occurrence, I was driving in the rain for approximately 22 miles and briefly parked with my vehicle running. I then turned out of a parking lot and began to accelerate to speed up and the check engine light came on along with all the same messages, this time my vehicle acceleration had seized and wouldn’t go faster than 30 MPH. I slowly drove back to the parking lot and turned the vehicle off to let it sit, disconnected the battery and reconnected, and the issues went away. The third occurrence, I was driving on the highway in the rain for approximately 10 miles, I went to merge into a right hand lane, I took my foot off the acceleration peddle to slow down for the merge and as I slightly turned the wheel to the right, my vehicle spun out three times, throwing the back end of the Tahoe into the inner highway wall, which spun me again to face the right direction, next to a highway exit. I then went to accelerate to exit the highway but noticed my vehicle would only coast and realized my engine had cut out at some point. I started the vehicle and exited the highway and parked in a parking lot only feet away from the exit. After I parked I noticed all the same warning lights came back on. Each occurrence happened on [XXX], [XXX], [XXX]. My vehicle was towed to Gunn GMC Collision Center in Selma, Tx and will be looked at on September 3, 2025 around 8:00am. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Sep 02, 2025

Crash: 1

STEERING,SERVICE BRAKES

1 complaint

• What component or system failed or malfunctioned, and is it available for inspection upon request? The steering column lock system malfunctioned, triggering a “Service Steering Column Lock” alert. This failure caused a sudden loss of steering control. The vehicle and components remain available for inspection upon request. In addition, the incident appears to have caused damage to the trailer harness wiring. • How was your safety or the safety of others put at risk? The malfunction placed my safety and the safety of others at significant risk. When the alert appeared, I lost steering control of the vehicle and nearly collided, which could have resulted in a serious accident. • Has the problem been reproduced or confirmed by a dealer or independent service center? The problem has not yet been reproduced or formally confirmed by a dealer or independent service center. • Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has not yet been inspected by the manufacturer, police, or insurance representatives. However, I am prepared to make it available for immediate inspection. • Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes. A “Service Steering Column Lock” message appeared at the time of the incident, immediately prior to the sudden loss of steering control and the resulting issue with the trailer harness wiring.

Aug 17, 2025

FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that the vehicle failed to start and was towed to the local dealer, who diagnosed that the fuel pump module was faulty and needed to be replaced. The fuel pump module was replaced, and the vehicle was repaired. After retrieving the vehicle, the message "Key Not Detected" was displayed, and the vehicle was taken back to the local dealer. The dealer performed a diagnostic test and determined that there were 14 separate electrical failures with the TCM, ECM, and BCM. The cause of the failures was not yet determined. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 37,000.

Aug 15, 2025

ENGINE,POWER TRAIN

1 complaint

I am submitting this complaint regarding my 2021 Chevrolet Tahoe (VIN: [XXX] ) which has developed a severe transmission shudder at both low and highway speeds. The issue has been confirmed by my Chevrolet dealer, who provided an estimate of $5,492.18 for torque converter and valve body replacement. This failure is identical to the torque converter shudder problem documented in GM service bulletins and special coverage adjustments for other GM vehicles of the same make, model, and model year. However, my VIN is not currently included in those programs, leaving me without coverage despite experiencing the exact same defect. I believe this condition poses a serious safety risk, as the shudder occurs while driving at highway speeds, causing vibration, hesitation, and potential loss of control. These symptoms could lead to accidents if the vehicle fails to respond properly during acceleration or lane changes. Given that this appears to be a widespread defect affecting multiple GM vehicles, I respectfully request that NHTSA investigate and consider expanding any related recall or special coverage programs to include affected VINs such as mine. Please let me know if further documentation, service records, or dealer estimates are needed to support my complaint. Thank you for your time and for working to ensure vehicle safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Aug 05, 2025

ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE

1 complaint

We are apart of the safety recall with the potential brake and engine issues, we have contacted the dealership and they have NO remedy at the current time for our defective vehicle. We contacted GM to request a buy-back due to the safety issues with the vehicle, told we did not qualify BUT they have no remedy for our defective truck. We do not fell safe in the vehicle, the brakes are sticking and the engine is making weird noises. We are currently seeking legal representation because we are being forced to drive around our family of 5 in an unsafe vehicle with NO remedy or option to trade it in.

Aug 04, 2025

SEAT BELTS,UNKNOWN OR OTHER

1 complaint

Our vehicle was rear ended and the front passenger seatbelt did not lock or (possibly) locked too late. The front passenger's face hit the dashboard, as well as their knees and feet. The vehicle that hit ours was estimated to be travelling at about 45 mph and we were rolling at around 5 mph in traffic. The failure has not been able to be reproduced by the collision center, the sensor callibration contractor, nor the dealership. No sensors showed any failures and the tension appears to be correct on the seatbelt. We have been unable to determine why the seatbelt failed during this incident and if the vehicle will react appropriately in the event of another collision.

Jul 14, 2025

Crash: 1

Injuries: 1

SEATS,UNKNOWN OR OTHER

1 complaint

3rd row headrest- not staying upright was recalled prior to current condition not upright 2nd row seat- adjustment cable broken no longer working Transmission- pump and valve body failed required replacement

Jul 13, 2025

ENGINE,FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCE

1 complaint

several issues with certain popups regarding various indicators on dash and engine not getting enough psi

Jun 19, 2025

ELECTRICAL SYSTEM,BACK OVER PREVENTION

1 complaint

Failed OTA Update to information center (Radio) has caused radio unit and screen to become inoperable. Blinkers do not sound when on, warning sounds when backup camera are in use no longer work, along with cross traffic warning due to this. It should be noted we did not consent to the OTA update, and would have not wanted the update as it has caused damage to this system. GM know this is an issue and has refused to fix this.

Jun 18, 2025

VEHICLE SPEED CONTROL,ENGINE

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that upon coming to a complete stop, the vehicle suddenly jolted forward independently. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the valve body. The vehicle was not repaired due to part availability. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 57,000.

Jun 09, 2025

ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM

1 complaint

Instrument panel has failed twice and is unresponsive. The gauges move and stay to the left after moving left to right. All lights begin to cycle through error messages. I have video of the issue both times it happened. When it occurs, you don't know your speed you have to guess, the full tank reads empty etc., and it is dangerous to back up. The vehicle has been diagnosed by one independent mechanic and is currently at the dealership. There was no warning before the instrument cluster failed other than a cycling through of warning messages service transmission check 4X4, service suspension system, service Power Steering Drive with care. -The center screen goes in and out. -When in reverse, the rear camera is black, the screen blinks intermittently. - Dealer has stated that the wires are put on incorrectly- if that is the case, I am not sure who would have done that other than the manufacturer. -previously reported there was a strong gasoline smell in the cabin that made it really hard to breathe. Dealer corrected. Right passenger side is intermittently wet with no cause from the interior creating stale smells, making it hard to breathe. It is important to note this is the side where the electrical wires are "put in incorrectly" according to the dealer. I also have a video of what occurs

Jun 04, 2025

POWER TRAIN,ENGINE,LANE DEPARTURE

1 complaint

While traveling on the highway one day, my 2021 Chevrolet Tahoe began warning lights on the dashboard. Shortly after, it running roughly,, and jerking, so I pulled over to investigate. There no visible smoke, so I drove to the nearest auto parts store, where they ran a diagnostic test that returned a code of P0306. I then took vehicle back to the dealership where have always received oil changes and repairs. I have never visited any other dealership, relying on certified GM/Chevrolet dealerships. After inspecting the vehicle, they informed me that the lifters needed replacement advised that it would be best to replace the engine entirely. Upon further research, I discovered that issue has been affecting many people in our area and across the United States. This needs to be addressed, as the vehicle is only three years old, purchased brand new with zero miles, and I have not done anything out of the ordinary to cause this problem. The vehicle being 70,000 and 12.000 for repairs is insane.

May 06, 2025

POWER TRAIN,FORWARD COLLISION AVOIDANCE

1 complaint

1st. While driving at highway speeds my vehicle disengaged from adaptive cruise control when no cars were in view of sensors. However, cars were behind me, making it a little scary. Happened once but I haven't had my vehicle to know if it would happen again. 2nd. Car has a vibration at speeds of 30 to 40 mph. Vehicle has literally been at dealership since February 10th, 2025 with no eta for valve body in sight.

May 01, 2025

ENGINE AND ENGINE COOLING,POWER TRAIN

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while her husband was driving at an undisclosed speed, several unknown warning lights illuminated, and the engine made knocking sounds. The message "Service Transmission" was displayed. The contact's husband pulled over and turned off the vehicle. The vehicle failed to restart immediately. The vehicle was taken to the dealer, who replaced the camshaft retainer, valve tensioner kit, gaskets, seals, lifters, engine bolts, rods, and pipes; however, the "Service Transmission" message displayed again while driving. The dealer was made aware of the failure, but the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was approximately 89,678.

Apr 30, 2025

POWER TRAIN,VEHICLE SPEED CONTROL,UNKNOWN OR OTHER

1 complaint

My vehichle will not go in reverse my wheels are locking up and also my car is going over 6000 rpm when going down the highway and not wanting to shift gears where it is a safety concern for myself and my kids well being

Apr 01, 2025

POWER TRAIN,WHEELS

1 complaint

GM does not install TPMS devices in spare tires. I had a flat tire in snowy conditions 100+ miles from the nearest place for assistance. After putting on the spare tire the DIC (driver information center) displayed no air in tire. That’s because a TPMS doesn’t exist in spare tires. I started driving a my four wheel drive turned off. I turned it back on and after a very short distance it turned off again. Since the vehicle determined I didn’t have air in one of the tires (spare previously mentioned) the four wheel drive shouldn’t work to prevent damage. I needed the four wheel drive in the snow so I had to proceed at approximately 25 mph. This is a safety issue for not only my vehicle but others on the roadways. I contacted the dealer that had no idea about the problem and neither did the national GM customer support center. There is a tool that “tells” the vehicle where each tire is located so that is low tire pressure occurs the driver would know which tire needs attention. If a TPMS was installed from the factory and a flat occurred, spare installed then the four wheel drive would function. If a flat subsequently occurred the driver would still be alerted but wouldn’t know tire was involved. Visual check would find it. Either this or have GM provide an override so the trip could be continued safely. I believe that this situation applies to any four wheel drive vehicle not just GM and should be resolved if the NHTSB would initiate an investigation.

Jan 29, 2025

SERVICE BRAKES, HYDRAULIC

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated while driving at an undisclosed speed, the brake pedal was depressed; however, the brakes failed to function as intended. In addition, the contact noticed a grinding sound and several unknown warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed with brake master cylinder failure. The contact was informed that the brake master cylinder needed to be replaced. The vehicle was not repaired. The contact stated that the brake master cylinder had been replaced two times since October 2024 and needed to be replaced a third time. The manufacturer was made aware of the failure and a case was filed. The contact was provided a monetary discount towards the cost of the repair. The failure mileage was approximately 35,000.

Jan 27, 2025

ELECTRICAL SYSTEM,SERVICE BRAKES,LANE DEPARTURE

1 complaint

Vehicle brake module system failed after being replaced one week ago. All of my systems system lights are coming on on my dashboard. I cannot drive past 62 mph. This is the second time that this has happened under a month after vehicle being serviced at a GM dealership.

Nov 30, 2024

FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCE

1 complaint

It’s happened about 10 times since I’ve owned the car but the dealer can’t recreate it so we are out of luck. The vehicle accelerates on its own. Scenario 1…with constant light steady acceleration, it will lurch forward like I’ve stomped on the accelerator a bit, for about a second then go back to my normal input. Scenario 2, same lurch but this time while coming to a stop at a stop sign WITH MY FOOT ON THE BRAKE PEDAL ONLY. scenario 3…I’ve been using the adaptive cruise control and had it disengaged by braking, coming to a stop, then parking and turning the vehicle off. Then after getting back in and starting up and slowly pulling forward, the cruise control suddenly and abruptly renegages and attempts to accelerate to the last demanded setpoint. Image this scenario pulling out of a spot at a crowded gas station with pedestrians. I almost ran someone the hell over just now at the gas station and I’ve had enough. The dealer won’t do anything and when I called Chevy engineering they put zero effort into it, it was a 20 second phone call stating if it can’t be reproduced at the dealer there’s nothing they can do. This is absolutely completely 100% dangerous and unacceptable

Oct 04, 2024

TIRES,WHEELS

1 complaint

The contact owns a 2021 Chevrolet Tahoe equipped with Good Year Tires, Tire Line: Wrangler Trail Runner AT, Tire Size: 275/60/R20, and DOT number M6W0JA3R3121. The contact stated that while entering her driveway, the driver's side front tire, wheel, and hub detached from the vehicle and crashed into an unknown parked vehicle located in the driveway. The contact was unconscious for a period of time, and she woke to the vehicle sliding against the parked vehicle and garage. The contact stated that she was unconscious, but no medical attention was provided. There were no reports of air bag deployment, fire, or a police report filed. OnStar notified her that her front driver's side tire had a problem. The contact's neighbor, who is an independent mechanic, stated that the tire broke and detached. The contact called a local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage of the tire and the vehicle was approximately 14,200.

Jul 16, 2024

Crash: 1

POWER TRAIN,ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL

1 complaint

2 ISSUES - 1) vehicle repaired 5 times for "transmission" problem by replacing wiring harnesses. On 5th attempt, the GM factory part or the technician caused the Tahoe to catch fire. Worst part is that it happened 1 hour after test driving and parking the car at their dealership, thankfully, I would normally have driven it home and it would have destroyed my home too. GM investigated and was unable to determine cause. 2) each time the "transmission" error occurred the GM car went into what they call the "limp" mode. The car immediately loses speed control and drifts to about 35 mph until you have control of the accelerator. I was on an interstate going +70 mph to pass a semi and immediately after passing the car went into Limp Mode, the semi nearly rear ended me and then passed me blowing his horn and cursing me. GM could certainly correct this latter issue by creating a warning on the screen that gives the driver ample time to pull over and address the problem as they do when DEF fluid (this was a diesel) is low and will give warning to add DEF or reduce speed after so many additional miles are driven. The former issue needs to be addressed immediately too, I've noted 4 other drivers on social media that had similar fires. Both of these issues could have resulted in serious injury to me or my family.

Apr 23, 2024

Fire: 1

FUEL SYSTEM, GASOLINE,ENGINE

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving 35–40 MPH, the vehicle abruptly shut off. The contact continued to pump the brake pedal to alert oncoming traffic. There were no warning lights illuminated. The contact called the Police, and the vehicle was towed to an impound lot. The vehicle was towed to the local dealer, where it was diagnosed that the fuel pump control drive module needed to be replaced. The vehicle was repaired. The manufacturer was contacted, and a case was opened. The contact stated that the failure was related to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The failure mileage was approximately 38,000.

Apr 03, 2024

ELECTRICAL SYSTEM,WHEELS

1 complaint

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at approximately 35 MPH, he heard an abnormal sound coming from the front tires. The contact stated that the abnormal tire sound was constant and was occurring at various speeds. Additionally, the contact stated that the vehicle was occasionally failed to start. The contact stated that there was no starter motor sound or even the sound of clicking when the ignition key was turned. The contact stated that the failure was intermittent. The contact had taken the vehicle to a local dealer, where it was diagnosed; however, the failure could not be duplicated. The vehicle was not repaired. The contact stated that the failure had reoccurred. The manufacturer was informed of the failure. The failure mileage was 45,844.

Feb 13, 2024

SUSPENSION,POWER TRAIN

1 complaint

The vehicle experienced a catastrophic control arm failure at low speed while turn left onto a residential street. the brake line severed, the wheel began to roll under the drivers side of the vehichle.

Feb 12, 2024

ELECTRICAL SYSTEM,AIR BAGS,UNKNOWN OR OTHER

1 complaint

The airbags failed to deploy in my 2021 Chevrolet Tahoe after being involved in an accident where another vehicle t-boned my vehicle on the passenger side front end to rear end causing severe damage and pushing my vehicle with great force. A police report was taken by officers that responded to the traffic accident. A claim was filed with my auto insurance and my 2021 Chevrolet Tahoe is currently being repaired as it was not deemed a total loss. Myself and my passengers were injured and received and continue receiving medical treatment for our injuries; our safety was definitely placed at risk. Before being involved in this accident, warning alerts/lamps would appear on the vehicle’s dashboard indicating to “service the safety restraint system” and also to “open then close passenger window” which in turn led me to take the vehicle in for service however the dealer said it could not be duplicated nor did the computer show any alerts. After the accident, I Contacted General Motors and filed a claim for the non deployment of the airbags, they in turn are conducting their investigation.

Jan 20, 2024

Crash: 1

Injuries: 3

AIR BAGS,SEAT BELTS,SEATS

1 complaint

The indicator light 'Service Safety Restraint System' beeps and comes on about every 5 minutes when driving. Sometimes it doesn't come on at all. There is no rhyme or reason for why it happens.

Dec 04, 2023

ELECTRICAL SYSTEM,AIR BAGS

1 complaint

The truck had an airbag malfunction notice on the information center. We took the truck to the dealer and was told that it was an electrical problem with the airbags. That the only way to have it covered under warranty was for the vehicle to be under the bumper to bumper warranty. The truck at the time the mileage was 39844. We had the truck fixed since it was a safety issue. It cost $420+ to fix it. We feel that it should have been covered due to a safety issue.

Nov 21, 2023

ELECTRICAL SYSTEM,SERVICE BRAKES

1 complaint

Driving the car and brake system failure. Esc failure and front collision failure almost hit a car. Truck speed warning no faster then 62 miles per hour

Aug 26, 2023

VISIBILITY/WIPER

1 complaint

I was north of Pittsburg on Sunday 30 July 2023 when I seen that rain was approaching. I turned on my rain sensing wipers and as the rain approached and turn into a down pour I had NO wipers. Couldn't see where I was going, went to the left and hit rumble strips so I went right and heard the rumble strips there. Stopped and almost caused a pile up. Took it to the dealer on 03 August 2023 and the dealer (Walker Brothers) Edinboro,PA. trouble shot my vehicle and then ordered me a new wiper motor with NO idea when it will be in.

Aug 05, 2023

VISIBILITY

1 complaint

Driving on freeway and heard loud pop. Moon roof shattered.

May 12, 2023

AIR BAGS,SEATS

1 complaint

Vehicle is displaying service safety restraint system error message which may affect airbag deployment. Dealer advised problem from GM with a harness being too short under seat and seat adjustment can disconnect SRS system which could fail during an accident. Advised no recall but repair parts were not currently available.

Apr 07, 2023

UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM

1 complaint

I have an on going problem with the emissions system on my 2021 Tahoe. The vehicle discharges raw diesel fuel and DEF from the exhaust tail pipe during cold startup. This discharge is overwhelming and is so strong it can be detected by smell from over fifty feet away. In addition to this issue the fumes enter the inside of the vehicle and at times it is so bad you need to open the windows. I believe this problem is unsafe as it poses a fire risk and a CO exposure risk to the vehicle occupants. The vehicle has been in the shop repeatedly for the past eighteen months with various parts replaced. To date none of the repairs have fixed the problem. In February GM issued a statement saying that this is normal operations.

Mar 10, 2023

POWER TRAIN,ELECTRICAL SYSTEM

1 complaint

The vehicle was manufactured with a push button transmission gear selector. If there is an electrical issue(ie. dead battery, electrical short, engine failure, etc) you cannot shift transmission gears. If I pull into my garage, notice a burning smell coming from engine area, possibly an electrical short, I cannot put vehicle in neutral to push out of garage in case it does erupt into a fire and not burn down my house. Recently my dead battery caused the tow company to lift the back end and pull it our of garage. General Motors did not install an override to put transmission in neutral in an emergency. The transmission will only shift if the engine is running. Imagine driving on a road or stopped at a traffic light and the engine stalls, will not restart, good Samaritans offer to push you off the road, but can't shift to neutral. Dealerships have a hydraulic lift they place under rear tires to move vehicle around service area. As a retired law enforcement officer, many times we had to move vehicles out of the way until wrecker serviced arrived. I feel this is definitely something that has to be addressed and corrected before major damage occurs or lives are endangered.

Apr 11, 2022

STEERING,SUSPENSION,WHEELS

1 complaint

While driving on a residential street during daylight hours, on a clear day at approximately 20 miles per hour the right wheel on my car dislodged. This caused me to lose control of steering the vehicle and strike a parked car. There were people walking about on the sidewalk at the time and other cars traveling. When I exited the car I saw that the passenger side was completely on the ground and there were broken pieces and liquid coming from underneath the car. The axel was broken with a clean break. The car was then towed to the dealership where I was informed it could not stay. My insurance company then towed it to their repair shop where upon assessing the damage they could tell that this was not caused by a collision. General Motors along with our independent investigator examined the parts and vehicle. Leaving me without a vehicle for 4 months. Our Insurance investigator determined this was a defect in manufacturing and GM did not agree. General Motors will not communicate with us any further on this matter. Some of the repairs that were made was the left front and CV axel, also the left front aluminum steering knuckle was missing. This should be investigated for metallurgical discrepancies by an independent lab. While the car was being inspected there was a recall to the power steering that may apply to the vehicle. I would like for the NHTSA to investigate this issue. The car has been repaired and is in my possession and my insurance company has all of the reports, documents, and parts regarding the investigation. I also have pictures immediately following and a witness to the incident. Had a been traveling on a highway at a higher rate of speed this could have been fatal. Your assistance in this matter would be greatly appreciated.

Nov 08, 2021

Crash: 1

Injuries: 1

ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE

1 complaint

Traction control and forward collision warning lights stared to go crazy in August 2021 (3800 miles), five months after buying my Tahoe. Sales rep indicated his new 2021 Silverado did the same and he was able to get it to reset by turning off and restating his engine. So I did the same and thought my issue may have resolved itself. Yesterday, the warning lights started to go haywire again (6700 miles) This time my vehicle felt as though it was going to stall and was making a clicking noise under the hood. The warning lights continue to flash regardless of how many times I turn on and off the engine. The engine also revs loudly.

Oct 18, 2021

SUSPENSION,UNKNOWN OR OTHER

1 complaint

2021 CHEVROLET SUBURBAN, 79 MILES ON ODOMETER WHEN DRIVEN OFF LOT ON 02/22/21. VEHICLE FRAME AND SUSPENSION PARTS, AS WELL AS, CONTROL, STEERING, AND POWERTRAIN PARTS HAVE SIGNIFICANT CORROSION OCCURRING. VEHICLE WAS MANUFACTURED AND INSPECTED 11/2020. VEHICLE WAS VISUALLY INSPECTED BY OWNER. CURRENTLY IN PROCESS OF TRYING TO REMEDY WITH GM. CORROSION SO EARLY IN VEHICLE LIFE WILL UNDOUBTEDLY LEAD TO FAILURE. I RESIDE IN TACOMA, WASHINGTON. VEHICLE WAS PURCHASED IN PUYALLUP, WASHINGTON. MORE PHOTOS AVAILABLE UPON REQUEST. THERE ARE SEVERAL MORE AREAS OF CORROSION THAN PHOTO UPLOAD ALLOWED FOR. GM CLAIMS 2021 MODELS HAVE A NEW PROCESS WHEN MANUFACTURING AND TREATING METAL. IT APPEARS TO HAVE FAILED. THE CLIMATE HERE IS MILD, AND ROAD SALT IS NOT USED IN THE AREA.

Mar 01, 2021

ELECTRONIC STABILITY CONTROL (ESC)

1 complaint

TL* THE CONTACT OWNS A 2021 CHEVROLET TAHOE. THE CONTACT STATED WHILE DRIVING 5 MPH, THE AIR BAG WARNING LIGHT ILLUMINATED. THE CONTACT DROVE TO HIS DESTINATION. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER CRONIC CHEVROLET BUICK GMC LOCATED AT 2676 N. EXPY, GRIFFIN, GA 30223, (866) 759-1183 AND THE FAILURE WAS ASSOCIATED WITH AN UNKNOWN TSB. THE DEALER ATTEMPTED TO REPAIR THE CONNECTION HOWEVER, THE VEHICLE CONTINUED TO EXPERIENCE THE FAILURE. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 1,000.

Oct 05, 2020

2021 CHEVROLET Tahoe Problems & Complaints

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