How many problems does the 2020 ACURA MDX have?

The 2020 ACURA MDX currently has 181 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 2020 ACURA MDX?

The most common problems reported for the 2020 ACURA MDX are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

Where does this 2020 ACURA MDX problem data come from?

All problem and complaint data for the 2020 ACURA MDX comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.

How do I report problems with my 2020 ACURA MDX?

You can report safety problems with your 2020 ACURA MDX directly to NHTSA at SaferCar.gov or call 1-888-327-4236. Your complaint helps identify patterns and may lead to recalls or investigations.

Where can I find my VIN to check problems?

Your 2020 ACURA MDX VIN is located in 4 places: (1) Dashboard near windshield on driver's side, (2) Driver's door jamb sticker, (3) Engine bay, (4) Vehicle registration and insurance documents.

Is the 2020 ACURA MDX reliable?

Reliability can be assessed by reviewing the number and severity of owner complaints for the 2020 ACURA MDX. Check complaints by component, crash reports, and fire incidents above to evaluate potential issues and problem patterns.

2020 ACURA MDX Problems

ENGINE

36 complaints

On December 4th I noticed a rattling sound when I was driving. It worsened when my car would rev above 2RPMs and before shifting. It also would make a terrible grinding sound when I started the car. I had about 1/4 of a tank of gas and thought that maybe that was part of the issue. After filling up, the sound was not as loud, but was still present when I started the car and upon accelerating. I took my car to my Acura dealership on December 5th. Within an hour of having the car they called to tell me that the engine needed to be replaced due to a connecting rod failure. They told me that the car is no longer safe to drive and that the repairs would be required in order to continue to use the vehicle safely. There was no warning sign. My only other concern is that the downshifters of this vehicle have never worked properly. I have mentioned this to the dealership multiple times and even drove the vehicle with their representative to recreate the issue. The car would accelerate and lurch forward upon utilizing the downshift feature. This would also cause the vehicle to over-rev which I am concerned was problematic to the connecting rod failure. Additionally, the vehicle has always made a grinding noise upon starting the engine, but the dealership assured me this was normal. Acura is unwilling to cover the full cost of replacement even though this vehicle has been maintained per the manufacturer's recommendations. There are approximately 90,000 miles on this vehicle.

Jan 16, 2026

My 2020 model Acura MDX is experiencing unexpected engine shutdowns while braking during motion. The issue has been reported multiple times to the vehicle manufacturer and their authorized dealers; however, their responses have been consistently unhelpful and have not resolved the problem. I currently have an open complaint with American Honda Motor Co., Inc. since December 2023 Case Number: 14329512 Additionally, I have found numerous reports online from other owners of the same model experiencing the same issue, as documented here: 2020 Acura MDX Engine Complaints – CarComplaints.com This recurring malfunction presents a serious safety risk, especially in moderate traffic conditions, where sudden engine failure during braking could lead to collisions or injuries.

Nov 20, 2025

I was driving on the interstate when suddenly the check engine light began to flash and the car lost power. I was traveling at 70 mph and the sudden loss of power caused the vehicles behind me to move into the other lane to prevent rear ending me. While there was no accident, there could have been if the other drivers were not reactive. There was no advanced warning. This could have been deadly for me and my family. I was several miles from home and needed to have the vehicle towed to a mechanic who stated it sounded like a rod bearing and suggested we take it to an Acura dealer. We are yet to have a resolution.

Nov 18, 2025

At a red light or stop sign, my MDX switches into Neutral without me knowing it. When I press the gas to go, my car won't move. Other vehicles behind me almost hit me as they expect me to go. I can't switch into drive. I must turn off car and then turn it back on. I feel this is very dangerous. This happens about once a week now. The MDX was just in for service and recalls a few months ago. Nothing was noted about the engine on the reports.

Sep 24, 2025

The contact owns a 2020 Acura MDX. The contact stated that occasionally, while driving at various speeds, the vehicle stalled. There was no warning light illuminated. Additionally, while the vehicle was stopped at a traffic light, the Auto Idle START/STOP failed to operate as designed, and the vehicle failed to restart. The vehicle was taken to a local dealer; however, the cause of the failure was unknown. Upon further investigation, the contact related the failure to an unknown recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 10,000.

Sep 18, 2025

+ 31 more complaints for this component

UNKNOWN OR OTHER

16 complaints

The Auto Start-Stop Technology is malfunctioning. I bought my 2020 Acura MDX in 2022 and with the first 2 weeks of having it, it turned completely off while in a drive through line. It only does this when the Auto start- stop is on. I took it back to the dealership and of course they found nothing wrong. This happens frequently and sometimes the car doesn’t want to start back up. Sounds like I am not the only one with the same issue.

Nov 30, 2025

On multiple occasions, after coming to a complete stop, the engine shut off as designed but then failed to automatically restart when I released the brake pedal or pressed the accelerator. This left the vehicle completely disabled in traffic until I manually restarted it by shifting into Park and pressing the ignition button. This failure is unpredictable, occurs without warning, and poses a significant risk of collision, particularly when stopped at busy intersections or in heavy traffic. I contacted my Acura dealer, who confirmed that this issue is a known concern on 2016–2020 MDX models and that Acura has issued Technical Service Bulletins (such as 23-001 and 23-002) and a warranty extension. However, even after updates, the problem continues to occur, and there is no permanent remedy at this time.

Oct 04, 2025

The auto start feature on the vehicle has been failing. When you come to a stop the engine’s start feature enables but when proceeding to start moving again the vehicle stalls out and will not restart right away. The vehicle must sit for about 30secs or after two tries in order to restart up. It has stalled out on me while in traffic on the highway, at traffic lights, stop signs. My most recent experience was me being stuck at an intersection unable to move for an ambulance and firetruck in route to an emergency. This issue has put my safety as well as others at risk many times. I have voiced my concerns many times with the dealership but they state there is nothing wrong with my auto start feature nor any other issues that can contribute to this. Any help with this issues is appreciated.

Sep 09, 2025

I been having deceleration problem and shut down unexpectedly problem with my Acura MDX 2020 truck. I can be driving my truck normally and out of no where my truck would lose power slow down and eventually shut off completely. I avoided like 5 car accidents with this incident happened to me. I have bring the truck to Acura and they are not fixing my problem.i am scared to dead to drive my own truck. I always drive with my kids in my truck. Please help I don’t know what else to do. This truck is going to get me in a nasty car accident and I can even lost my life. Back in 2024 in September I was driving on 78 on my way to Jersey City, I was driving like 65 miles, my truck slow down lose power and eventually turned off. Someone almost hit me from behind. On Wednesday July 02/2025 I was driving like 20 miles approaching a red light to stop once I press the break pedal my truck completely shuts off. I needed to wait like 1 minute or 2 to turn on. Also on Thursday July 3/2025. I was on my way to the hospital with my kids and my truck turn off completely on a Burger King drive through. That day I took my truck again to Acura to check on it. They told me nothing was wrong with my truck.

Jul 14, 2025

I was in traffic on a major highway during rush hour, and my car went into neutral on its own in the middle of the highway. I was unable to put it in drive, restart it, turn it off or do anything else. The car truck behind me almost hit me and other cars were honking their horns as they changed lanes and drove past me. It was extremely frightening and unsafe as my car sat there without moving, on a major highway, in the middle of rush hour, at 5:35 pm. This happened before and I reported it to the dealership in 2024, and took my car in on three different occasions. In November 2024, less than a year after I purchased the certified pre owned car, it shifted into neutral twice within 20 minutes while I was driving intown, and again later than day as I exited a highway. The third time, I was able to get a video of it on my phone. The dealer said they could not reproduce the problem but fortunately, I sent them the video that shows the oil, battery, ABS, ACC, brake, road departure system, tire pressure, LKAS, brake system and other lights were all on. They said they addressed the issue then. This time around, in April 2025, they told me that they were unable to reproduce the issue but that it was because my battery tested low. Nothing was mentioned about a battery in November when the battery was still under warranty. Now they are saying it is the battery. There were no warnings before the car stalled. This is concerning and very unsafe. I cannot upload videos to this report so I have uploaded a few screenshots from it.

May 02, 2025

+ 11 more complaints for this component

FORWARD COLLISION AVOIDANCE,LANE DEPARTURE

10 complaints

I drove my car in the morning and parked it in the lot for about an hour. After I came back and started my car, the following multiple safety systems displayed on my dashboard at the same time: - Lane Keeping Assist Problem - Collision Mitigation System Problem - Road Departure Mitigation System Problem - Auto High Beam Problem - Adaptive Cruise Control Problem When I took it to the dealership on the same day to diagnose this, they came back and said it was an internal failure with the camera and quoted me around $2200 to replace and recalibrate the camera. These lights just came on out of nowhere, I had no repairs or modifications with my windshield and there were no accidents of any sort. This appears to be a widespread problem among 2020 Acura MDX vehicles with similar camera modules. A malfunctioning front camera can prevent the vehicle from automatically braking or maintaining lanes, hence increasing the risk of collision. I am requesting that NHTSA investigate the front multi-purpose camera system on the 2020 Acura MDX for potential defect and safety hazard.

Dec 10, 2025

While driving my 2020 Acura MDX with 29,647 miles, all AcuraWatch safety systems suddenly failed at once, including Collision Mitigation Braking System (CMBS), Lane Keeping Assist, Road Departure Mitigation, Adaptive Cruise Control, and Automatic High Beams. Multiple warning messages appeared simultaneously. This disabled forward collision warning, automatic emergency braking, and lane departure/lane keeping functions, creating a serious safety risk. The dealer inspected the vehicle and confirmed an internal failure of the multipurpose front camera/radar unit, and recommended replacement of the entire assembly. The repair estimate is 2,200. The dealer stated the component has failed and cannot be repaired. This issue is widely reported by many Acura owners of similar model years, and appears to be a recurring defect. The failure occurred without any impact, damage, or modification. The vehicle is available for inspection. The symptoms began suddenly and all warnings appeared at the same time. Because this failure disables critical collision-avoidance and lane-keeping systems, it presents a significant risk to the driver and others on the road. I believe this should be investigated as a safety defect.

Nov 28, 2025

Monocular windshield camera failed for no apparent reason on five-year-old car with less than 50k miles. Dealer cost to fix $2k. My concern is there are an many individuals on the Acura MDX forums complaining of the same problem. It appears to be a relatively common but very costly failure on many Honda vehicles that use similar cameras. I believe this is worthy of an investigation, especially since the camera is necessary for many safety related features to function properly.

Sep 19, 2025

UKNOWN ACC,LKAS, brake system warning lights intermittently come on. Started around 25000. More persistent now. Dealer advisor checked windshield/wiped over where the camera is and since it was not on at the dealership no problem found. Just stated the camera is funky sometimes. Vehicle has 59000 now. Not sure exactly what components are effected but the safety features of the vehicle no longer work properly such as the breaking warning.

Sep 05, 2025

My 2020 Acura MDX is throwing up multiple dashboard warnings related to the camera sensor—involving systems like Adaptive Cruise Control, Lane Keeping Assist, Collision Mitigation, and Road Departure Mitigation. These systems rely heavily on the Multipurpose Camera Unit mounted near the rearview mirror. I took it to my Acura Dealership Service and they concluded it's the Multipurpose Camera Unit that's causing all these dashboard warnings. They are charging me $1800+ for a new one to be installed. I have researched and googled this issue online, and there were hundreds and hundreds of comments from Honda car owners that have faced this issue, especially Honda and Acura models made in 2019-2020. Many have bought a used camera unit for approx. $150 online and got it installed & calibrated. Others have said that this camera unit is so HOT to the touch since it's located under the windshield. I agree with a lot of these Honda/Acura owners that this malfunction of this camera is a safety issue for the car drivers and others around them since these codes just pops out suddenly making the drivers so nervous during driving. Also, these cameras under the windshield get so, so hot that it could also start a combustible hazard. These units should be encased in a heat-tolerant case/cover and not metal.

Sep 04, 2025

+ 5 more complaints for this component

ELECTRICAL SYSTEM

10 complaints

There was an active recall on this car from Acura for the auto start system malfunctioning. When the car auto stops at a signal or stop sign it does not turn back on sometimes. We took the car to Acura 3 times for the same issue and they keep saying that it is fixed but the recall was never fixed. This is highly dangerous in traffic situations when the car does not turn back on when you take your foot off the brake.

Oct 14, 2025

The contact owns a 2020 Acura MDX. The contact stated that while at a stoplight, the vehicle shut off and failed to immediately restart after releasing the brake pedal. The contact stated that the failure had occurred on several occasions. The vehicle was taken to the local dealer, who diagnosed that the starter needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed of the NHTSA Action Number: EA25004 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the investigation. The failure mileage was 20,000.

Sep 17, 2025

The contact owns a 2020 Acura MDX. The contact stated while coming to a complete stop, the vehicle started to stall. The contact stated that after the vehicle came to a stop, the vehicle would not turn on until after several seconds. There were no warning lights illuminated. The vehicle was stalling more frequently and was taking longer to restart. The vehicle was towed to an independent mechanic and was diagnosed with alternator failure. The independent mechanic could not find any other cause for the failure. The vehicle was repaired; however, the failure persisted. The local dealer was contacted; however, the vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 20,000.

Feb 04, 2025

The contact owns a 2020 Acura MDX. The contact stated that upon coming to a complete stop, the vehicle suddenly stalled. After which, the contact became aware that the vehicle briefly failed to detect that the key was present, preventing the vehicle from restarting. After a while, the vehicle was able to detect that the key was present, and the vehicle started. 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 was unable to duplicate the failure. The manufacturer was not notified of the failure. The failure mileage was 10,000.

Dec 12, 2023

I was on a bridge heading into a tunnel stopped due to traffic and the car shut off completely. The screen said to put the car in park and restart it. I tried several times and after a few attempts it started back up. This is the third time this happened. I had a recall when I purchased it and had the recall addressed for the same issue. Now I am back at Acura again. And being told I may have to pay for diagnostics. The car is still under warranty.

Dec 04, 2023

+ 5 more complaints for this component

ENGINE AND ENGINE COOLING

9 complaints

The contact's relative owns a 2020 Acura MDX. The contact stated while driving approximately 25-30 MPH, the check engine warning light started flashing, and the vehicle stalled and lost electrical function. The contact stated that the vehicle was only able to be locked manually, and the windows failed to roll up as intended. The driver was able to pull over to the side of the road. The vehicle failed to restart and was in the process of being towed. The dealer was notified of the failure and informed the contact that the earliest availability for a diagnostic test was in 7 days. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 65,000.

Sep 02, 2025

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

May 30, 2025

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Feb 10, 2025

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Dec 10, 2024

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Jul 10, 2024

+ 4 more complaints for this component

ELECTRICAL SYSTEM,ENGINE

8 complaints

I own a 2020 Acura MDX. On two separate occasions, the Auto Engine Idle Stop system failed to operate while depressing the accelerator pedal while at a stop. Several unknown warning lights were illuminated on the instrument panel. The vehicle shuts off and the I had to manually restart the vehicle after the failure. I have not contacted the dealer yet but based on what I have found here I am not the only one that this is happening too. It is awful to be stopped in rush hour traffic and having people honking at me and potentially be the cause of an accident. The vehicle has not been repaired. The failure mileage was approximately 35,000 and 38,000 miles.

Jul 19, 2025

The contact owns a 2020 Acura MDX. The contact stated that on three separate occasions, the Auto Engine Idle Stop system failed to operate while depressing the accelerator pedal while at a stop. The contact stated that several unknown warning lights were illuminated on the instrument panel. The contact stated that the vehicle shut off and the contact had to manually restart the vehicle after the failure. The contact called and informed the dealer of the failure. The contact was then referred to the manufacturer for assistance with the repair. The contact was provided a case number and referred to the dealer to order the part for the repair. The contact made multiple attempts to reach the dealer but had not received a response. The vehicle was not repaired. The failure mileage was approximately 44,000.

Jul 08, 2025

My vehicle stalled and the engine cut while I was waiting at a stop light. The engine auto shut-off feature was active at the time of the incident. While sitting a the red light the auto engine feature shut the engine down, which is normal to reserve the use of fuel while at a stop light. When I took my foot off the brake, the vehicle should have restarted. but instead, the vehicle went into N (neutral) and the engine did not restart. I was sitting in the middle of traffic with cars behind me, so I put the emergency signal on, I then put it in P (park) and started the vehicle. This is the second time this has happened. The first time I thought I touched the neutral button by mistake. There were no injuries, but I'm concerned that this could cause a crash in the future,.

Oct 30, 2024

I came to a stop at a stop sign. The start/stop feature activated and the engine shut off. When I lifted my foot off the brake, the engine did not restart (as it's supposed to), and then vehicle automatically shifted itself into neutral (without any of my doing). I put the emergency flashers on to alert other motorists, hoping to avoid a rear-end collision as I was stopped in the middle of an intersection in rush hour traffic. At this time, the battery light illuminated. The engine light illluminated as well. I had to forcefully and unusually push the brakew pedal towards the floor as the vehicle was drifting backwards. At this time, the vehicle would not shift into park. Then "PARK" illuminated, so I attempted to reapply the brake hoping that when I let up from the brake the car would start again (like the usual procedure). The vehicle then shifted into park, but the engine had not restarted. I pressed the on/off red button to follow normal procedures for turning the vehicle off. With my foot remaining on the brake, I pressed the off/on red button to start the engine as usual and the engine finally restarted. Afraid for the safety for myself and other motorists, I put the vehicle into drive and I pushed the button to stop the stop/start system from engaging. No codes generated during this. This is a safety issue for several reasons. First, I was stuck in the middle of a busy intersection where a large volume of cars travel through each day. It was rush hour, so the roads couldn't be more filled. Someone coming around the corner who might not have been prepared to stop could have hit me. Likewise, I could have been hit while in the intersection. Secondly, once the vehicle failed to turn back on, the Washington Grove (Montgomery County Fire and Rescue Services - MCFRS) was responding to a vehicular file nearby on I-270 and had I not have been able to move in time, some of their vehicles likely wouldn't have made it through because my vehicle was blocking the lane.

Oct 22, 2024

The contact owns a 2020 Acura MDX. The contact stated that while driving at slower speeds, the vehicle stalled and shifted into neutral. After shifting to the park, the vehicle was restarted and operated normally. The contact stated that the failure had occurred on numerous occasions while accelerating from a stop or while decelerating to a stop. The vehicle was taken to the local dealer on multiple occasions and software updates had been performed, the battery and starter were replaced, but the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 25,000.

Dec 20, 2023

+ 3 more complaints for this component

UNKNOWN OR OTHER,ENGINE

6 complaints

My Acura MDX 2020 had an issue in which the automatic start-stop system sometimes not manage to start the engine after stopping.

Apr 06, 2025

WHEN I WAS STOPPED AT A RED LIGHT IN TRAFFIC (MY VEHICLE WAS IN IDLE STOP MODE), MY CAR SIMPLY DIED AND WOULD NOT RESTART WHEN THE TRAFFIC LIGHT TURNED GREEN AND I STEPPED ON THE GAS PEDAL TO MOVE FORWARD WITH TRAFFIC. IT TOOK NUMEROUS ATTEMPTS TO RE START THE VEHICLE WHILE STUCK IN VERY HEAVY TRAFFIC BEFORE IT GAINED POWER AND WAS ABLE TO DRIVE FORWARD. MY SAFETY WAS COMPROMISED I WAS IN THE MIDDLE OF MULTIPLE LANES OF MOVING TRAFFIC, IT WAS SCARY. NO WARNING LAMPS OR MESSAGES OCCURED PRIOR TO THE INCIDENT.

Jul 29, 2024

No warning lights or other indications occurred. This is the 2nd time while sitting at a stop light that the car has gone into neutral gear and it was unknown until the traffic signal turned green and I could not go. I could not shift into drive. The remedy required that I shut the car off and restarted (very little time between) before putting it in gear. Both occurrences were with idle stop function on. There is an entire discussion forum on this exact issue on [XXX] . Being first in line at a stop with 4 other passengers and a line of drivers expecting me to go on green is a sure way to result in an accident. The car goes in for regular service next week and I will bring it to the dealer’s attention. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Jul 20, 2024

The car's Auto Start/Stop (AST) function is malfunctioning. It frequently fails to restart the engine after stopping, causing the engine to completely shut down at traffic signals. When this occurs, the car must be shifted to park and the engine manually restarted.

Jul 18, 2024

Idle stop feature causes vehicle to auto shift to neutral at stop. There are many forums noting this issue. It happened a year ago several times, they replaced the battery and it is happening again. You are sitting at a light or stop sign, go to hit the gas, and the car is in neutral. You need to turn the car off and start again. This is a serious risk of getting rear ended with this issue. One time when it happened last year a cop pulled me over to see if everything was all right. The car should not be shifting to neutral at a stop.

Nov 06, 2023

+ 1 more complaint for this component

FORWARD COLLISION AVOIDANCE

5 complaints

All the sensors are blinking with no damage done to the vehicle no Cruz Control no abs no lane departure and more all sensor is not working

Nov 30, 2025

I'm not sure if there is a problem with any of the components, but the radar sensor malfunction impacted the vehicle's braking system. Situation: On [XXX], I was driving with my wife and her nephew from my home (Ankeny, IA) to Indiana on [XXX] [XXX] and [XXX] [XXX] . It was snowing that day. As usual, there were other vehicles on the highway, semi-trucks, pickup trucks, cars. The snow was splashing on to my front bumper, lights, radar sensor and windshield. As it was snowing, I did not engage the cruise control feature. We were around 30 miles from Iowa City, I was passing a semi-truck, a message was displayed on the dash to clean the radar sensor. I thought of pulling over in a safe spot to clean it up. At the same time, "front collision off" and "brake system" icon lite up. The road also changed from downhill to uphill. Suddenly, the vehicle started swaying in my lane, towards the semi-truck wheels and towards the guard rails. I was able to control the steering and come to a stop. That was a near death experience. I got my breath for a minute and cleared the radar sensor. After cleaning the radar sensor, the vehicle was driving fine going up and down the rolling hills of Iowa. Concern: Why a blocked radar sensor should impact the braking system? I understood the impact to adaptive cruise control and front collision features. Are the traction control, ABS, or some other system disabled due to malfunction of the radar sensor? Can the radar sensor wires being bad disables the braking ability? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Jan 26, 2025

the manufacturer has not solved in a timely matter the open recall since November 2023

Apr 08, 2024

On two separate occasions (December 2022 and April 2023), the Collision Mitigation System (CMS) of our 2020 Acura MDX improperly engaged. On the first occasion, the CMS abruptly engaged the braking system without warning. There was no car in front of the car, but there was a car in a turn lane to the right of the car. There was no reason for the system to engage. Both the driver (my wife) and the passenger (daughter) reported back pain from the incident. The driver received physical therapy for the event. The dealer (Gary Force Acura) and Honda America were notified. The dealer examined the car and found no issues or failures. On the second occasion, the car was changing lanes at a slow rate of speed while approaching an intersection and a stopped car well in front of the Acura. The CMS again abruptly slammed on the brakes in a manner not corresponding with the risk or danger of the situation. A collision with the car behind our car was fortunately avoided by the driver of the other car. The violence of the braking system caused damage to the braking system. No injuries were incurred. Again, the dealer and Honda America were notified, and the car was again examined. No issues or failures were identified outside of the brake repair. On both occasions, individuals were put at risk. The dealer was not able to reproduce the problem. The dealer said a CMS warning to brake should have come on before the CMS engaged. On both occasions, no warnings were observed until the actual braking event started. We are not comfortable driving the car, particularly with a student driver in the family. In most cases, we turn the CMS off before driving the car. The intent is to dispose of the car due to concern associated with the CMS.

Jun 09, 2023

Injuries: 2

The contact owns a 2020 Acura MDX. The contact stated while driving approximately 40 MPH, the collision mitigation braking system inadvertently activated. There were no warning lights illuminated. The contact had since deactivated the collision mitigation braking system. The contact stated that the failure recurred several times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 19,725

Jul 28, 2022

POWER TRAIN

5 complaints

Engine noise on Monday sounded like thumping - didn't drive car on Tuesday and stated up today sounded like chewing metal in engine bay. 2020 MDX Advanced. Drove to dealership and they confirmed needs small block and is only 2K miles outside of powertrain warranty. Honda claims this isn't under their recall, but dealership is saying all signs point to the same bearing failure. 10K costs for the small block, but could lead to entire engine required.

Mar 26, 2025

The contact owns a 2020 Acura MDX. The contact stated while coming to a stop, the contact noticed that the vehicle inadvertently slipped into neutral. There was no warning light illuminated. The contact restarted the vehicle several times to shift back into drive. The contact also noticed that the steering wheel had seized, making the steering wheel difficult to turn. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not mad aware of the failure. The approximate failure mileage was 26,000.

Nov 13, 2024

I was in a stop and go traffic on the highway. When at a complete stop car shifted into neutral, I know that I didn’t push neutral because both of my hands were on the steering wheel. Step on gas pedal and car will not go. Tried putting into Drive but will not shift into Drive. Lots of vehicle behind me. It was very scary and dangerous, I could have been rear ended. I had to turn the engine off and restarted again then I was able to put it Drive and go. This issue happened twice, once at a stop sign about a month earlier.

Oct 10, 2024

I was in RED light and Car went to Idle Stop. I got Green Light but the Car automatically went to Neutral mode and did not back to Drive mode when I changed. I put emergency light on but People do not have any patience and Horn me in the light.. I tried many times to put Drive mode and it did not work. After turn off/on the engine few times finally it worked. It was very scary if I would have struck in middle of the Highway with family it would be very bad. I called the Acura Service center they act like they did not aware of this issue. I have setup appointment this week for diagnosis.

Mar 25, 2024

1. (JULY 8, 2020) ON 1 OCCASION WITHIN A SHORT TIME AFTER PURCHASING MDX, I FLOORED THE GAS PEDAL ON THE HIGHWAY AS WHEN PASSING ANOTHER CAR, LET OFF THE GAS PEDAL AND THE ENGINE KEPT RUNNING AS THOUGH THE GAS PEDAL WAS STILL FLOORED. REPORTED IT TO DEALER AND THEY SAID THEY COULD NOT DUPLICATE THE PROBLEM AND SAID MAYBE THE FLOORMAT CAUSED THE PROBLEM. POTENTIALLY DANGEROUS. 2. (JULY 8, 2020) ON AN INCLINE AT A STOP SIGN, MDX WILL ROLL BACKWARDS AFTER RELEASING BRAKE AND THEN WHEN PRESSING ON THE GAS PEDAL IT WILL LURCH FORWARD. REPORTED IT TO THE DEALER. POTENTIALLY DANGEROUS. 3. WHEN STOPPED AND THEN TRYING TO BACKUP ON AN INCLINE, MDX WON'T MOVE REARWARD UNTIL GAS PEDAL IS PRESSED APPROXIMATELY 1/4 TO 1/3 OF FULL GAS PEDAL MOVEMENT. IT ACTS AS THOUGH THE BRAKING SYSTEM IS PARTIALLY APPLIED. THIS ONLY HAPPENS ON AN INCLINE, NOT ON LEVEL GROUND.

Jan 08, 2021

ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE

4 complaints

The contact owns a 2020 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The contact stated that the vehicle stalled while driving and came to a complete stop on two occasions. The vehicle was able to restart, and the contact resumed driving. Additionally, the contact stated that the vehicle was difficult to start. There was no warning light illuminated. The vehicle was taken to the dealer, where it was confirmed that the battery was in good condition. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not made aware of the failure. The failure mileage was approximately 25,000. Parts distribution disconnect.

Feb 07, 2025

The contact owns a 2020 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling) however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The dealer was contacted. The manufacturer was made aware of the issues. The contact had not experienced a failure. Parts distribution disconnect.

Jun 04, 2024

The contact owns a 2020 Acura MDX. The contact stated that while driving, at various speeds, the vehicle hesitated and stalled. Additionally, while driving on several occasions, the vehicle hesitated. There were no warning lights illuminated. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The contact called another local dealer, Acura of Valley Stream Service, at 700 W Merrick Rd., Valley Stream, NY 11580, who informed the contact about diagnostic testing. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. . The failure mileage was approximately 56,500. The contact stated that the failure was related to NHTSA Campaign Numbers: [XXX] (Engine and Engine Cooling), and [XXX] (Fuel System, Gasoline). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mar 28, 2024

The contact owns a 2020 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The contact stated that the vehicle hesitated to start. There was no warning light illuminated. Additionally, the contact stated while driving at an undisclosed speed, there was an abnormal knocking sound coming from underneath the rear of the vehicle. An unknown local dealer was contacted. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not notified of the failures. The approximate failure mileage was 32,863. VIN tool confirms part not available.

Mar 20, 2024

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM

3 complaints

On Aug 8th at 3:32pm (81F and sunny), I stopped at a red light with the auto idle engine feature on. When I lifted my foot off the brake to drive the car, the car shifted into neutral and completely shut down and would not restart immediately. I attempted approximately 8 times to restart the car for 3 minutes before it successfully restarted. This poses a significant safety hazard for myself, my children, and others on the road. This is the 6th time this has happened and I have previously filed a NHTSA report # 11533671 with the same issue. Acura has been unable to diagnose and recreate the problem and is refusing to do any further work. It has been brought into their dealership on 3 separate occasions (July 2023, September 2024, August 2025). Prior to this occurring, there were no warning symbols, the car started fine without issue, and the battery has been checked and confirmed in working order.

Aug 10, 2025

I am writing to formally express my concern regarding a recurring issue with the Auto Start/Stop feature in my 2020 Acura MDX. This feature, which is intended to improve fuel efficiency, has instead caused unexpected and unsafe engine shutoffs while the vehicle is in operation. On multiple occasions, the vehicle has failed to restart promptly after the engine shuts off at a stoplight or in traffic, creating a serious safety hazard. The delay or failure to restart can leave the car temporarily disabled in active traffic, placing both myself and other drivers at risk.

Jun 11, 2025

When using the a/c while the Auto Idle Stop is engaged, the engine will shut off and not restart. This issue does not happen immediately, at the first cycle of being activated, it's after 3 or more cycles of the AIS being in use, like driving in stop and go traffic for instance. The issue reminds me of a low/dying battery when it happens. Now when I turn off the A/C, the car starts right up like normal. Also if I don't use the A/C, the AIS cycles like normal, like in traffic, l'll have no problems with its performance.

Apr 01, 2025

EXTERIOR LIGHTING

3 complaints

There is moisture and water droplets inside outer left taillight

Jul 19, 2025

Left rear inner tail light is inoperative. There is evidence of water intrusion in the lower left corner of the tail light assembly. Called dealer, was told by service manager that the concern was not covered under warranty as the vehicle has just over 51,000 miles. Called Acura Care and was told same. 2014-2019 models of this vehicle were recalled for this issue, but not the 2020 models, although they are the same body style and share same tail light part number. The lights are LED and have no replaceable bulbs; entire assembly must be replaced.

Mar 19, 2024

On my 2020 MDX the rear tail light is filling with moisture and water causing the tail light to fail. There is already a recall from Acura for 2014-2019 MDX for the same issue. Apparently Acura did not correct the issue for the 2020 models which uses the same part and did not address the issue. Acura needs to include the 2020 MDX as part of this recall as well. This is a safety as if the light fail can cause a serious accident.

Mar 27, 2022

FUEL SYSTEM, GASOLINE

3 complaints

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V858000 (FUEL SYSTEM, GASOLINE) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Jan 09, 2025

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) contact however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time. The contact stated while driving at an undisclosed speed, the vehicle stalled with no warning light illuminated. The vehicle was able to restart; however, the failure recurred. The dealer was contacted, and the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 136,000. Parts distribution disconnect.

Aug 08, 2024

The contact owns a 2020 Acura MDX. The contact stated that while the vehicle was idling, the engine suddenly shut off when the driver attempted to accelerate forward. During the failure, the message “shift into park to restart” had displayed. After shifting to the park position the engine was restarted and the vehicle operated as normal. The failure had occurred on at least four separate occasions and one time while attempting to park the vehicle. The contact indicated that the failure had occurred with and without the fuel-saving feature activated. The cause of the failure was not determined. The local dealer was notified. The manufacturer was not yet contacted. The failure mileage was 12,000.

Aug 11, 2022

AIR BAGS

3 complaints

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 24V064000 (AIR BAGS) however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Jan 07, 2025

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. The manufacturer was made aware of the issue. Parts distribution disconnect.

Sep 12, 2024

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Jun 05, 2024

ELECTRICAL SYSTEM,UNKNOWN OR OTHER

3 complaints

The vehicle stalled and was unable to start again, Called AAA , they jump started but when I went to dealership they said it wasn't the battery. The car electrical electric system was flashing. The breaks won't release. This is not the first time. My car is currently in Acura service for 5 days and they can't figure out what the problem is. My friends car also has had similar issues. I have a video of the flashing indicators. The car has only 33k miles.

Nov 25, 2024

Twice so far my car just turned itself off while stopped in traffic at a stoplight. It would not turn on immediately. Traffic built behind me, steering was locked, brakes not working. After sitting a minute or so it would start again and then the steering would then work, gas accelerator, brakes would all then start to work again. It was scary and unsafe. This needs a recall!!!

Nov 14, 2024

When the vehicle is idle, for instance at a light, it will shut down. It idles a little, goes into neutral and shuts completely down having to be restarted. I always turn off the automatic start on the vehicle after I start it, so it is not that. It has also done it while driving. It is very unsafe to be driving in traffic and have your vehicle shut down with no warning. Please advise on what actions should be taken to correct this issue.

Sep 23, 2024

SERVICE BRAKES,ENGINE

2 complaints

I was at a red light with the idle stop automatically triggered. When the light turned green, and I pressed the accelerate pedal, the car would not move. I looked and saw the car had shifted itself to N (neutral) when it should have stayed at D (drive). I pressed the "D" button to drive but it stayed in N. There was a green light around the N button indicating the selected button. I had to turn off the car, turn on the car two times before the car recognized I wanted to press the "D" button. The screen by the steering wheel had some sort of message but I don't recall what it said. The word "accessory" might have been part of the message. This is absolutely a safety risk for myself and others. I had cars behind me at the green light honking. I had to turn on the hazard lights and wave to them out the window. If the driver before me did not pay attention, they could have hit me. This is the second time this has happened.

Jan 15, 2026

The engine idle stop function is unreliable and often fails to restart the engine when the brake pedal is released. The vehicle will, suddenly and without notice, become inoperable and undrivable wherever it rests, whether at a red light or stop sign, in the middle of an intersection while making a left-hand turn, or on an entrance ramp to a highway, causing a dangerous situation for myself and other drivers. It takes several minutes to restart the engine and sometimes must be jump-started. The issue has been reported to my local dealership, and they said it is not covered.

Oct 03, 2022

ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE

2 complaints

Electric parking break and emissions light keep popping up. They says it’s the catalytic converter many people having the same issue

Nov 08, 2025

Auto braking system engaged abruptly, without necessity. This occurred twice (December 2022 and November 2023) almost causing collisions on both occasions. The dealer could not reproduce the problem when it was brought in in December 2022 and said this could occur if the sensors are dirty and to ensure they are always clean. I have since done so, and the same thing happened again. There were no warning signs for this error prior to it occuring.

Nov 28, 2023

STEERING

2 complaints

The power steering failed while driving, and multiple warning lights came on. This happened in the middle of a busy city street and came very close to causing an accident. When the car was restarted the power steering came back on line but failed again the next day. My wife and I decided it was unsafe to drive and had it towed to the dealer. The dealer told us that the "Wire Harness" failed and the Clockspring/Reel assembly had to be replaced. The total cost was $3,888.91. There were no warning lamps, messages or symptoms prior to the failure. This is definitely a safety issue. The dealer had no explanation of why a component like this should have failed. I contacted Honda and was told that there is no recall on this part and i should make a report to the NHTSA. This was a scary and distressing event. Please look into it and get Honda/Acura to issue a recall.

Nov 03, 2025

TEMPORARILY LOSS CONTROL OF MY VEHICLE WHEN I WAS EXITING THE PARKWAY AND NEEDED TO STEER AROUND TO AVOID A STOP CAR MY CAR JUST TOOK A BIG ROCK IN MOTION FROM SIDE TO SIDE. THE STEERING IS VERY UNRESPONSIVE, VEHICLE HESITATES WHEN ACCELERATING RAPIDLY AND WHEN TURNING THEY IS NO STABILITY. ALSO MY BREAKING DOESN'T REACT THE WAY IT SHOULD IT'S VERY DELAYED. ALL OF THE THINGS THAT THE DYNAMIC MODE IS SUPPOSED TO ENHANCE APPEARS NOT TO BE FUNCTIONING. I WENT TO THE DEALER SEVERAL TIMES THEY SAID THEY COULDN'T FIND ANYTHING BUT YET THE PROBLEM CONTINUES. THEY ALSO SAID THEY RESET AND RELEARNED SOME PARTS OF THE CAR IN AN ATTEMPT TO RECTIFY THE ISSUE I WAS EXPERIENCING. THE PROBLEM STILL EXISTS. MANY TIMES WHEN I COME TO A STOP ON A HILL THE CAR ROLL BACKWARDS. I WAS GIVEN THE SAME MODEL ON ONE OF MY VISITS TO THE DEALERSHIP AS A LOANER. AND IT RAN LIKE A TOTALLY DIFFERENT CAR THE WAY THE CAR SHOULD RUN IT WAS THE SAME YEAR SAME MODEL. EVERYTHING WAS MORE RESPONSIVE THE STEERING THE BREAKING THE SUSPENSION EVEN WHEN I STARTED THE CAR THE START UP SOUND WAS MUCH MORE AGGRESSIVE. PLEASE HELP!

Mar 18, 2021

SERVICE BRAKES,FORWARD COLLISION AVOIDANCE

2 complaints

emission system problem & electric parking brake problem codes came up. Once pulled over vehicle would not disengage the emergency parking brake.

Oct 18, 2025

My vehicle will phantom brake and kick on the automatic emergency brake system without cause. It has done it as I was accelerating onto the freeway onramp and almost caused a collision with the vehicle behind me. There was nothing in front of me and no reason to brake. It has happened on several occAsions

Mar 29, 2025

FUEL/PROPULSION SYSTEM

2 complaints

Auto idle cuts off idling at stop light but when reengaged stalls the car completely. Must totally restart car before continuing causing back up in intersection and almost being hit. Happened several times, when I forget to turn auto idle off. New battery did not help

Oct 02, 2025

While driving on the highway, at highway speeds, all dash lights came on and the vehicle immediately lost power coming to an abrupt stop. We were able to limp the car to the side of the road. It was ultimately determined that the car’s fuel pump had gone out. The fuel pump was replaced by Acura, and covered under the initial manufactures warranty. However, it’s rather suspicious that our car is not included in the recall given that the fuel pump failure is identical to the open recall for our same make and model.

Mar 06, 2024

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

2 complaints

When the vehicle stops and the idle auto-start/ stop engages, the vehicle will automatically go into neutral and cannot be restarted until the vehicle is turned off then back on. This has happened at both stop lights and on the highway and almost caused a very serious rear end accident.

Sep 18, 2025

While driving, in the middle of the high way, the car shuts off and stops and when restarted it wouldn’t go. Stopped, twice this month and three time total this year, on the Highway thank god no accident.

Jun 12, 2023

UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM

2 complaints

My car has been going into neutral when in the autostop. The only way to get out of it is to turn it off and back on. It's incredibly dangerous. I almost got into a horrible accident. It happens suddenly and without warning.

May 29, 2025

Auto Idle Mode - After we've stopped and released the brake to go forward, the car will then shift to neutral by itself instead of restarting to drive. This has happened frequently and is now starting to happen more often. This is a safety issue, especially if you're the last car in line and other cars are traveling 55-60 miles behind you on a major road and see a green light ahead. Each time this happens, we have to turn off the car and try to restart the car, and sometimes this has been iffy and we've had to repeat the process a couple of times. There were no warning lights of problems with any of car components. There have been similar reports of this occurring: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Aug 26, 2024

POWER TRAIN,ELECTRICAL SYSTEM

2 complaints

The contact owns a 2020 Acura MDX. The contact stated that while driving in Comfort Mode at approximately 40 MPH and attempting to accelerate to change lanes, the vehicle stalled for several minutes before accelerating. There were no warning lights illuminated. The vehicle hesitated to start intermittently, and the failure was more frequent over time. The vehicle was taken to the dealer, who diagnosed that the battery had failed. The battery was replaced, and the vehicle was remedied under the NHTSA Campaign Number: 25V031000 (Fuel System, Gasoline, Electrical System). The failure reoccurred. The vehicle was returned to the dealer, and the contact stated that the vehicle was shaking abnormally while accelerating; however, the dealer had not diagnosed the vehicle a second time. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 48,193.

Apr 09, 2025

Start n stop button not working right shuts off and hard to start

Apr 01, 2025

POWER TRAIN,VEHICLE SPEED CONTROL

2 complaints

Hello, so far 4 to 5 times my MDX automatically shifted to Neutral gear at traffic signals. THen vehicle stops and not moves, i wouldn't be able to change the gear, the vehicle just seems stuck. COuple of times the cars behind almost crashed with my family in the car. ONly options is to power off the car and restart. I took to the dealer, they ran all the tests and nothing found in the debugging. Looking online, looks like many customers have experienced the problem with Acura vehicles [XXX] ). This is a huge safety concern as i feel we are sitting ducks for any fast moving vehicle. Can you please get Honda/Acura to rectify this problem for existing cars and not to play with customer lives INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Oct 05, 2024

Starting around 20,000 miles, my car started to majorly hesitate when I would step on the pedal trying to accelerate. Over time the problem became increasingly worse to the point where the car would slip into neutral causing a major hazard driving on the tollway when my car would decelerate when stepping on the gas pedal. This has caused me to have several very close near accidents. The dealership would keep saying that they could not replicate the problem. I have taken my car in on 8 separate occasions for this safety concern (4 different Honda/Acura dealerships trying to get help since the place I bought the car wouldn’t not help with a solution.) My car has also begun back rolling (15+ feet) when in drive. And yesterday, suddenly accelerated from 0 to 35 when waiting for our driveway gate to open. There are major issues with sudden acceleration when driving a speeds under 20mph and deceleration issue when stepping on the gas pedal trying to accelerate. I have opened a report with Honda over a year ago and keep getting the run around.

Apr 30, 2022

POWER TRAIN,FUEL/PROPULSION SYSTEM

2 complaints

What component or system failed or malfunctioned, and is it available for inspection upon request? - Periodically After Auto Start Stop System activates (vehichle shuts down after stop). When the brake pedal is released and vehicle attempts to restart the engine stalls and is shifted into neutral. How was your safety or the safety of others put at risk? - UNK Has the problem been reproduced or confirmed by a dealer or independent service center? - No, this is an intermittent issue, this has occurred a few times (6). Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - No, email sent to service department. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - Parking light, Brake system light, Oil pressure light, battery light.

Mar 26, 2024

I HAVE EXPERIENCED SUDDEN ACCELERATION PROBLEM NUMEROUS TIMES( 5 TO SIX TIMES. THE LATEST ONE WAS MARCH 1,2021. THE VEHICLE WOULD ACCELERATE (RPM RAPIDLY ) SUDDENLY WHEN DRIVING AT LOW SPEEDS(AROUND 10 TO 15MPH TO A QUICK ALMOST 30MPH WITHOUT PRESSING THE GAS PEDAL) THAT ALWAYS REQUIRE ME TO BREAK IMMEDIATELY TO AVOID ANY ACCIDENTS. I HAD THE VEHICLE CHECKED THOROUGHLY BY A COMPANY SENT EXPERT LAST YEAR(SOMETIME NOV ,2020) AND THEY CAN'T REPLICATE THE PROBLEM. ACURA RELATIONS CAN'T HELP ME ANYMORE . IT MADE ME GOOGLE UNINTENDED ACCELERATION MDX. THE PROBLEM IS FOR REAL. HAD I KNOWN THIS PROBLEM, I WOULDN'T HAVE LEASED THIS VEHICLE LAST OCT.31, 2019. PLEASE HELP. MANY THANKS

Mar 02, 2021

VISIBILITY

2 complaints

The contact leased a 2020 Acura MDX. The contact stated that the front driver’s and passenger’s side headlight covers became hazy, causing it to be difficult to see the roadway while driving. The vehicle was taken to the dealer where it was diagnosed that the headlight covers needed to be restored. The contact was informed by the dealer that the failure was a known issue. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was provided a case number, but no further assistance was provided. The failure mileage was approximately 36,000. The VIN was unavailable.

Oct 04, 2023

TL* THE CONTACT OWNS A 2020 ACURA MDX. THE CONTACT STATED THAT THE VIEW OUT OF THE PASSENGER'S SIDE OF THE WINDSHIELD NEAR THE A-PILLAR WAS DISTORTED. THE CONTACT STATED THAT THE VIEW WAS LIKE LOOKING THROUGH A COKE BOTTLE. THE CONTACT TOOK THE VEHICLE TO HUBLER ACURA (1265 US-31, GREENWOOD, IN 46143, (317)883-4560) TO BE INSPECTED. THE CONTACT WAS INFORMED THAT REPLACING THE WINDSHIELD DID NOT GUARANTEE THAT THE ISSUE WOULD BE FIXED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILURE MILEAGE WAS 178.

Apr 15, 2021

TIRES

2 complaints

unknown, been reading that this brand/model/tires are having issues. Was wondering if I need to get them replaced before an accident. CrossContact LX Sport (continental) size: 245/50R20 102H

May 16, 2023

Safety issue for Continental Cross Contact LX Sport tires that were OEM tires on 2020 Acura MDX. I've had to have 3 nails removed from tires in just over 2 years of owning this car. So I've had tires inspected quite a bit. Also, every time I had oil changed (at Acura), they would rotate the tires and also inspected them. Every trip to Discount Tire, I was asked if I was rotating the tires because they noticed uneven wear. Now at 29K miles, the current rear tires are at 4/32 and front at 6/32. Latest nail removal visit, the discount tire rep mentioned he was going to research these tires and why they would be wearing this prematurely. He noted the rear tires had exceptional wear on the outer tread and noted this could cause the tread to separate. This concerned me so I researched myself and found many instances of complaints where this line of tire has failed due to that exact issue, the tread separated and their tire immediately went flat. The driver had to get off the road quickly and safely to avoid a wreck. Further research revealed that this tire HAS been recalled, but only for 3 specific sizes, which does not include the size of tire on my Acura. The complaints covered a multitude of vehicle brands that most likely use these as OEM and a wide range of sizes of this tire line. Including Acura, Audi, Tesla, Chevy blazer, VW, and Jaguar. I believe the whole tire line needs to be recalled, not just 3 sizes, for everyone's safety.

Apr 15, 2023

POWER TRAIN,ELECTRICAL SYSTEM,SERVICE BRAKES

1 complaint

The following issues occur on a 2020 Acura MDX with low 50k miles, maintenance was done regular whenever a maintenance schedule appear. For the past few years after purchasing the vehicle we started getting a non-start engine with the key fobs and automatic side mirrors did not open or close when parked. Brand new batteries were replace for the key fob and later the Car Battery and the issue occurs intermittently, this was brought to the attention of the dealership and each time (documented) that they were not able to reproduce when they turned off the vehicle, this was mid 2024 06-13-2024 and sporadically continues till this year 2026. The dealership did not test or trace the electrical system as they were told to reproduce the issue first as it will happen at that moment. A new recent event 2025 has also occur and was brought to the dealerships attention, a warning message indicating - Electric Parking Brake Problem follow by a Emissions System Problem will appear. This was also "reset" by the dealership and indicated it was safe to drive but event reoccurs every few months. A 2nd opinion to another mechanic indicated it can be the emergency brake system to be faulty and driving the vehicle when the message appears may cause an immediate stop, advised us to have the dealership reach out to the manufacture. No word from either for the past year. Any open recall for my VIN was done once we were notified and a New Car Battery replaced and new batteries in key fobs - issue continues. Please assist Thank you

Jan 22, 2026

UNKNOWN OR OTHER,SERVICE BRAKES,ENGINE

1 complaint

Car started to accelerate randomly and 2 seperate occasions while driving, Car started to decelerate / Brake randomly while driving

Jan 16, 2026

ENGINE,FORWARD COLLISION AVOIDANCE

1 complaint

There was a couple times where the car stalled at a red light. Also, there are a lot of times when I press the push to start, it will not start, advising me to place the key fob near the push to start. I find this to be dangerous when driving and very annoying when attempting to start and it doesn't start.

Jan 09, 2026

FORWARD COLLISION AVOIDANCE,BACK OVER PREVENTION

1 complaint

This is a safety-related defect involving the multipurpose front camera used for Advanced Driver-Assistance Systems (ADAS) on the 2020 Acura MDX. The multipurpose front camera failed without warning, resulting in the simultaneous loss of multiple ADAS safety features, including (but not limited to) Lane Keeping Assist, Adaptive Cruise Control, Collision Mitigation Braking, and Road Departure Mitigation. These features are integral to the vehicle’s active safety systems and driver awareness. The failure required full replacement of the front camera assembly. The total repair cost was approximately $2,300, which I was required to pay out of pocket because no recall or extended warranty coverage was available. This failure creates a significant safety concern because: * The loss of ADAS functions occurred suddenly and without driver fault. * The driver may rely on these systems for collision avoidance, lane control, and adaptive braking. * The vehicle remains drivable, but with materially degraded safety capabilities compared to its certified design. * There is a risk that drivers may not immediately recognize the loss of functionality or may assume partial systems are still operational. After experiencing this issue, I discovered numerous reports from other Acura MDX owners describing identical multipurpose front camera failures, often at similar mileage, with similarly high repair costs. This suggests a potential systemic defect rather than isolated wear or misuse. I respectfully request that NHTSA review this issue to determine whether this represents a safety-related defect requiring investigation and possible recall. Given the role this component plays in multiple safety systems, I believe this issue warrants formal evaluation.

Jan 03, 2026

ELECTRICAL SYSTEM,EXTERIOR LIGHTING

1 complaint

Intermitted Flashing Dash Lights, Headlights, and Car Alarms. Steering wheel moving up and down. Looks like the same issue as Service Bulleting 21-055.

Dec 27, 2025

SEATS

1 complaint

The rear seats for my 2020 MDX are making a loud squeaky noise. The car has all of 47,000 miles and this should not be happening. American Honda wants $4,467 to replace the rear seat that is in a newer car from 2020. I’ve already had to spend over $2,000 last year to replace the drivers seat motor. I’d like to know if this problem is prevalent in the 2020 MDX with other owners? I’d appreciate your insight. Thank you. [XXX] cell [XXX] and [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Dec 18, 2025

VEHICLE SPEED CONTROL,ENGINE

1 complaint

1. The car accelerates by intself. The accelaration is like "hiccups". When reversing and changing to D gear, it takes longer than usual for the accelarion to take effect. Yes, car is available for inspections 2. It is dangerus because it gets the hiccups even at high speeds. If it is a serious egine problem, which seems like it is, could cause an accident. 3. The car was taken to the dealership for 3 recalls but it got worse after the recalls were fixed. Supposedly the recalls were supposed to fix the issues. We have not taken it back yet. 4. There is no lights or warnings when it does it.

Aug 27, 2025

EXTERIOR LIGHTING,INTERIOR LIGHTING

1 complaint

The contact owns a 2020 Acura MDX. The contact received notification of NHTSA Campaign Number: 25V259000 (Exterior Lighting, Interior Lighting); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.

Jun 24, 2025

VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE

1 complaint

MALFUNCTION: ROAD MITIGATION SYSTEM FAILED (RDM), LANE KEEPING ASSIST SYSTEM (LKAS) FAILED, and CRUSE CONTROL FAILED, after investigating the issue this is happening with multiple vehicles. SAFETY: YES, these all failed at the same time, poses significant safety issues for the diver, passengers, and other drivers due to nature of failure. CONFORMATION: at this time no inspection of the vehicle has transpired. NO OTHER WANING LAMPS OR MESSAGES, prior to suddenly showing up today 6/18/25

Jun 18, 2025

LANE DEPARTURE,FORWARD COLLISION AVOIDANCE

1 complaint

2020 acura mdx tech package with 31600 miles, I purchased this vehicle first owner in march of 2021 and about 3 days ago 5/22/25 I get a fault reading for collision mitigation system problem, lane keep assist problem, road departure mitigation system problem, adaptive cruse control problem and auto high-beam problem, all safety feature issues, I brought vehicle to Acura dealership and they scanned for error codes which produced error code#u3000-49 for faulty multipurpose camera unit millimeter wave radar internal electronic failure recommend to replace the wave radar, dealership states vehicle is no longer under warranty and would cost a total of $1500 to get repaired and replaced , this issue should be looked into further for faulty acura part if repair is done what are the chances of it happening again with normal usage of vehicle.

May 24, 2025

STEERING,UNKNOWN OR OTHER,ENGINE

1 complaint

I stopped at a red light and when I went to pull of the car cut off. I had to restart the car to pull off. This is the second time that this has happened.

Apr 06, 2025

AIR BAGS,SEATS

1 complaint

Acura has failed to repair my vehicle with a known recall for a year. I am told they're prioritizing symptomatic vehicles and have no ETA on all others. Why have a recall of a safety feature and not actually handle the recall timely. I prefer not to wait for an injury or incident before this is given the proper attention.

Jan 31, 2025

ELECTRICAL SYSTEM,SERVICE BRAKES

1 complaint

1.17.25 My check engine light came on with the following lights: Emissions System Problem Electric Parking Brake Problem

Jan 17, 2025

SUSPENSION

1 complaint

I brought my 2020 Acura MDX with 61,086 miles on it for a routine service and was informed that the front suspension control arms were failing and needed to be replaced within weeks otherwise it could break causing a safety issue while driving. I have never had a car including prior MDX's that required this to be replaced and when I asked about it, I was told by the dealer and other dealers that I spoke to that is was unusal for this to happen with this many miles but it can. I feel that this is a manufacturer flaw and could be an issue in other MDX's. Again, if I did not go in for routine service at that time, it could have resulted in a safety incident within weeks according to them without notice and there was no mention of this with my prior routine service back in June 2024.

Nov 12, 2024

SEATS,UNKNOWN OR OTHER

1 complaint

My 2020 MDX with less than 52,000 miles (VIN [XXX] ) has a transmission problem. I serviced the SUV as recommended by the dealer regularly and I take very good care . The transmission jerks several times when taking my foot off the gas to slow down within my short drive to and from work. If I parked on a little uphill or downhill roads and switch gear (either forward or reverse), the car jerks and jumps. I mentioned the issue to the dealer 3 weeks ago but of course couldn’t find any issues. Please advise. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Oct 07, 2024

POWER TRAIN,UNKNOWN OR OTHER,ENGINE

1 complaint

I was in traffic and we slowed down to a stop. Suddenly my car went to neutral and it didn’t want to go to Drive. I put emergency lights, as many cars were behind in the highway. I turned the car off and turned it back on. Then I was able to drive again! This has happened twice in the last 3 months.

Jul 26, 2024

SEAT BELTS

1 complaint

On May 30, 2024, the vehicle associated with the VIN associated with the report was involved in an accident. The vehicle is inoperable due to the seatbelt no longer working since the accident. The vehicle is at the collision center of my choice, and all repairs except for the seatbelt have been made. The collision center and I have reached out to American Honda Motor Company, Inc. and Acura several times. As of date, there has been no resolution and no estimated date of when a seatbelt will be issued by American Honda Motor Company, Inc. and/or Acura. I was told by an employee at American Honda Motor Company, Inc. that the seatbelt will become inoperable whenever the vehicle is in an accident or collision. I feel American Honda Motor Company, Inc. has and continues to produce unsafe vehicles and vehicles where repairs cannot be made promptly. Seatbelts are important, and I honestly believe seatbelts save lives. But, for a company to have a shortage of seatbelts with no estimated time of when one will be issued is unacceptable. And for the company to produce vehicles with seatbelts destined to not function after an accident is a problem. As a consumer, I would like this company to be held accountable for producing vehicles with problems and additional problems if the vehicles are in an accident. I've tried resolving this matter by contacting American Honda Motor Company, Inc., Better Business Bureau, and now NHTSA. I feel this is way beyond what a consumer should have to do.

Jul 15, 2024

Crash: 1

VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM

1 complaint

upon turning right, the car lost power, degraded acceleration as if someone is holding and pulling the car to move forward. The traffic behind me expected me to cathup with the speed on the road but due to loss of power and engine hesitation i got honked and was luck to avoid a crash from behind on a busy road. Acura dealership in Dallas dont have parts since a very long time. They have pleant of new cars to sell but not repair.

Jun 24, 2024

VEHICLE SPEED CONTROL,UNKNOWN OR OTHER

1 complaint

I stopped at a stop sign and the car went into N without me changing anything. The car wouldnt go back to D or P mode even when I pressed the buttons. I had to turn off the car and turn it on again to make it function properlty. This happened twice within 5 mins.

Jun 07, 2024

UNKNOWN OR OTHER,ENGINE,FORWARD COLLISION AVOIDANCE

1 complaint

I purchased this car in September of 2023 with 23,000 miles on it then I received a recall in December 2023. I purchased tires for my car at the dealership and they scheduled my car to have this recall to be fixed on Monday May 13, 2024. I brought the car in on Monday and received a call on Saturday May 18, 2024 to pick my car up from the dealership that it was fixed. I took my car to get gas and two lights on my dash board came up one about my emergency brakes and the other code stated that there is a engine problem and immediately bring the car to the dealership less than one hour of picking it up from a so called recall repair that I was told was going to take two weeks to fix ended up less than 5 days and the car is back at the dealership less than a hour of picking the car up today. I am pissed off and the car is a $40,000 car I paid for with these types of problems when Iam paying a $680 a month on the car note and can’t drive it . BTWay the car smelled of burnt oil while driving it back to the dealership when the lights came on. I want my money back on this recall I need to let you know that is why I bought a new car so I wouldn’t have to deal with this big ass migraine. The dealership needs to replace my car period in my eyes this can’t be fixed it already has to many problems and issues with this vehicle.

May 18, 2024

SERVICE BRAKES, HYDRAULIC,ELECTRICAL SYSTEM

1 complaint

The contact owns a 2020 Acura MDX. The contact stated while attempting to accelerate from a stop light, the engine did not restart after releasing the brake pedal. While attempting the restart the vehicle, the brake pedal was very hard while depressed. The cause of the failure was not yet determined. The vehicle was previously repaired at the local dealer and a software update was performed but the failure persisted. No further information was available. The manufacturer was not contacted. The failure mileage was 6,000.

Apr 16, 2024

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL

1 complaint

I've experienced stop and stall issues with my vehicle three times and the Acura dealership said they couldn't locate but kept my vehicle for a few days and said it was the battery. I have a new battery but same issue occurred two more times. There is definitely an electrical problem with this vehicle's system. The radio randomly stops working, no sound or buttons stop at any given time and also heat/air buttons switch by themselves. Shift paddles sometimes does not slow down vehicle, in most cases it accelerates.

Jan 12, 2024

POWER TRAIN,ELECTRICAL SYSTEM,ENGINE

1 complaint

Multiple times when I have come to a stop (traffic light, stop sign, etc.) my MDX has shifted itself into "Neutral" and it appears the engine has cut off by the battery power is still on, my MDX will not shift back into "Drive" or "Park"; I then have to press then "Engine On" button multiple times to get the battery power to shut off and then I can restart my MDX and then my MDX will shift into "Drive." I took it to my Acura Dealer and they said they checked it and there was nothing wrong and they also told me there had not been any recalls on my MDX.

Aug 16, 2023

ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES

1 complaint

While braking into a parking spot, vehicle experienced sudden unintended acceleration. Brake did not engage, car rapidly surged forward over parking block, sidewalk and hitting building. Previously in day, car would not recognized key fob, would not unlock and would not start even though stepping on brake that would not depress. I had no control over vehicle,and this could have hit pedestrians on sidewalk or storefront. Thankfully no one hurt, and did not occur in traffic or on the road. The dealership was contacted immediately, and they declined to inspect vehicle, codes or EDR statign that's not what they do. I have asked dealership 3 times. Insurance contacted immediately, and they to will not investigate, saying up to Honda and dealership. Honda stating they don't do investigations, and Insurance should do that. Round and round we go. No one assisting. Auto Body referred by dealership unable to investigate and do not have equipment to do so and stating dealership and Honda tech needs to do this investigation. Several messages displayed the day of incident prior to incident and electrical issues seem to have started immediately after recall or warranty work to reprogram auto stop function. First instance of electrical issue was on 4/1, when car would not open, or unlock even with new battery in key fob. This continued over next 3 weeks sporadically. 4/24 car would not start, displaying "must press down brake" to start, but brake would not depress. Finally worked. Same thing 4/25 in morning. In evening car would not unlock for some time, finally opened, then would not start displaying "Key fob not detected". Finally started. Message remained displayed. 15 min ,after, when parking, car accelerated forward without warning. This is a short summary, and a detailed summary is available. Vehicle remains untouched at autonomy hoping to get investigation completed. Too scared to drive this vehicle now..

May 04, 2023

Crash: 1

ENGINE,FUEL/PROPULSION SYSTEM

1 complaint

Periodically when accelerating the car (2020 Acura MDX) looses power. The car does not stall it just looses power. There have been times when we have had to pull over to avoid causing an accident. When it does occur there are no warning or signal displayed on the dash boards pre or post the incident. We have reported the issue to Acura but there has be no resolution to the issue.

Apr 07, 2023

UNKNOWN OR OTHER,POWER TRAIN

1 complaint

Twice at a stop light the car went into neutral by itself which then required me to go put in park then drive. One time a police officer was nearby and pulled me over after, asking if everything was ok since I was stopped at the light for a prolonged period of time. I took it to the dealership and they said it was the battery and replaced under warranty. Battery should not go when car has less than 30k miles. I checked forums and many people have experienced this issue. There are too many other complaints on line not to bring this to your attention. It has happened already. It is very nerve racking to be at a stop, hit the gas and go nowhere when traffic is quickly approaching from behind. This will eventually lead to someone getting rear ended.

Dec 21, 2022

VEHICLE SPEED CONTROL

1 complaint

Problem started 1 month ago. As I approached the round about I am at very slow speed,and for no action on my part, my MDX accelerates! Fortunately it has only happened as my vehicle is coasting or I am applying the break slowly. This is happening more and more. It has over 20K miles on it.

Sep 30, 2022

SERVICE BRAKES

1 complaint

Dealer says two warped rotors Brakes pads are good there has been no abnormal breaking while driving the car. I feel this is a faulty rotor

May 02, 2022

UNKNOWN OR OTHER,SERVICE BRAKES

1 complaint

Car broke down 3 times on the road while driving, it show 12Vbattery failure, ABS failure nd started flashing lights on the dashboard nd broke down while driving. When first time it happened dealer said they have fixed the issue. It happened again md yesterday is 3rd time. Vehicle is 19k miles only it. Pls help us getting this resolved. Dealers make false promises and it’s breaking down again and again on the road while driving which is very scary.

Jan 04, 2022

STRUCTURE,WHEELS

1 complaint

UNKNOWN

Oct 03, 2021

FUEL SYSTEM, GASOLINE,POWER TRAIN,ENGINE

1 complaint

The contact owns a 2020 Acura MDX. The contact stated while driving 30-35 MPH, the accelerator pedal was depressed but the vehicle failed to respond and would not move. There were several unknown warning lights illuminated. The contact stated that after depressing the drive button several times, she was able to drive the vehicle. The vehicle was taken to the dealer who determined that the contact had inadvertently depressed an unknown button on the steering wheel causing the vehicle to shift to neutral. The vehicle was not repaired. The contact stated that the failure recurred while driving. The contact was able to restart the vehicle and drove to her destination. The contact stated the failure persisted. The contact stated that the vehicle inadvertently stalled while driving. Several unknown warning lights illuminated. The contact was unable to restart the vehicle or veer to the side of the road. The vehicle was towed to the dealer but was not diagnosed nor repaired. The contact referenced NHTSA Campaign Number: 21V215000 (Fuel System, Gasoline) as a possible solution to the failure. The manufacturer was not notified of the failure. The approximate failure mileage was 3,000.

Sep 14, 2021

VISIBILITY/WIPER

1 complaint

Just recently purchased an 2020 Acura MDX AWD with Tech package. Noticed that the windshields have distortions near the A pillars, which happens from both driver side and passenger side. I feel nausea when looking through the window corner as objects are curved. I did a lot of research and found this issue has been there for a while. Distortion in windshield has safety issues that should be address by Acura.

Jun 16, 2021

VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE

1 complaint

WHILE DRIVING AT HIGHWAY SPEEDS WITH THE ADAPTIVE CRUISE CONTROL ENGAGED, THE VEHICLE DETECTS VEHICLES TO THE RIGHT (SAME DIRECTION OF TRAVEL) OR AT TIMES VEHICLES TO THE LEFT (OPPOSITE DIRECTION OF TRAVEL) AND ABRUPTLY APPLIED BACKING. NO VEHICLES WILL ACTUALLY BE IN LANE OF TRAVEL OF THE VEHICLE TO CAUSE ACTION. ON A 87 MILE DRIVE (ONE WAY TO WORK) HAPPENS MORE THAN EIGHT TIMES ON FIRST DRIVE AND OVER TEN TIME ON SECOND DRIVE. VEHICLE HAS UNDER 1500 MILES ON IT AND WAS PURCHASED BRAND NEW. TAKEN TO ACURA AND TOLD TO TURN OFF LANE DEPARTURE SYSTEM UNLESS IN CITY TRAFFIC. SYSTEM TURNED OFF AND DID NOT CORRECT ISSUE. THE ABRUPT BRAKING CAUSES DRIVERS BEHIND TO ABRUPTLY BRAKE, INCREASING RISK OF CRASH, AND ALSO ANGERS THEM BECAUSE THEY THINK YOU ARE 'BRAKE CHECKING' THEM. WEATHER WAS CLOUDY OR CLEAR.

Jan 11, 2021

2020 ACURA MDX Problems & Complaints

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