2021 TOYOTA Avalon Problems

Complaints Reported

Complaints by Component

AIR BAGS

10 complaints

The contact owns a 2021 Toyota Avalon. The contact received notification of NHTSA Campaign Number: 23V865000 (AIR BAGS); however, the part to do the recall repair was not yet available. The contact stated that the air bag warning light was intermittently illuminated. 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 made aware of the issue. The failure mileage was unknown.

Nov 14, 2025

There is no remedy available to fix the OCS sensor in front passenger seat of our 2021 Toyota Avalon. We are scared to drive it. What are our options since Toyota will not help.

Aug 05, 2025

My vehicle is under Safety Recall 23V865 (Toyota dealer reference 23TB15) due to potentially defective Occupant Classification System (OCS) sensors in the front passenger seat, which may prevent the airbag from deploying properly. The recall was issued in December 2023, and as of August 2025, there is still no available remedy. Toyota originally estimated a fix by Q3 of 2024, but it is now overdue. This unresolved issue puts passenger safety at risk in the event of a crash. I have contacted dealerships and checked for updates, but no solution has been provided. I believe this delay is unacceptable for a critical safety defect and request NHTSA to investigate the remedy timeline and pressure Toyota to provide a fix or alternative solution.

Aug 04, 2025

The contact owns a 2021 Toyota Avalon. The contact received notification of NHTSA Campaign Number: 23V865000 (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 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. VIN tool confirms parts not available.

Apr 15, 2025

SAFETY DEFECT IN FRONT PASSENGER SEAT NOT REMEDIED IN OVER ONE YEAR. TOYOTA IS CLEARLY NOT GOING TO FIX SAFETY PROBLEM AS IT WILL COST MORE TO REMEDY THAN THE COST OF DEATHS AND INJURIES.

Mar 08, 2025

+ 5 more complaints for this component

VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE

2 complaints

Cruise control stopped working while driving interstate speed. Would not work and all lights on dashboard came on . Proceeded to Nearest dealership and was informed that I needed a brake switch. Did not fix the problem. Have been informed that I need a wiring harness! About to spend a total of 400.00

May 07, 2025

Stopped working with a message ' radar control in not available'

Oct 18, 2022

ENGINE

1 complaint

While driving our 2021 Avalon on a busy interstate,the engine failed on us unexpectantly. This cathostrophic failure without warning startled my finance and ruined xmas holidays. The car was towed to a local Toyota dealership who diagnosed the issue as low oil pressure which prevented oil reaching the top engine ultimately collapsing the rocker arm. Oddly enough the technician shared it was not low on oil nor were there any signs of le. We were informed the engine must be replaced. We purchased the vehicle with 56K and just hit 69K. We've been responsible with routine maintenance and have service reports to support services performed from the original owner and us. When contacting Toyota to report the issue, the advocates and resolution team did not offer any service campaigns or good will programs to cover any out of pocket expenses. They acted as if we should hold the dealership who sold us the car liable ignoring any possibility of a defective engine. There is NO good reason why any engine with only 69k miles should fail this sudden. There are similar reports of class action suits currently against Toyota on other engines and they ignore all accounts of owning any portion of the repair due to the car not being sold from a Toyota dealership and being over the 60k power train warranty. Regardless of the warranty the manufacturer name is on the vehicle and all accounts of this issue are indicators of a defect. Our voices may have not be strong enough for them to make us whole at this moment. Not only was this a dangerous situation for my family, but the expenses to replace the engine in such a short time is ridiculous. A company with such a high reputation not to mention high revenue and EBITA should not ignore the voice of the customer. My hope is other customers unite and voice any similar concern similar to ours. This experience has changed my mind how much I value Toyota.There are core principles & expectations car manufacturers should stand by.

Jan 09, 2025

AIR BAGS,SEAT BELTS

1 complaint

SEATS ARE NOT REGISTERING FOR AIR BAG AND THE MIDDLE BACK SEAT BELT ALARM GOES OFF SAYING TO PUT SEAT BELT ON, BUT NO ONE IS SITTING IN BACK SEAT. SO WHILE I'M DRIVING I HAVE TO PULL OVER AND PLUG SEAT BELT IN TO GET THE SEATBELT WARNING SOUND TO STOP. THE SEATBELT IS NOT REGISTERING IN THE BACK SEAT AND THE FRONT SEAT IS NOT REGISTERING SOMEONE IS SITTING THERE FOR THE AIRBAG. IT DOESN'T REGISTER MY GRANDSON OR MY SON, WHICH IS DANGEROUS. KIDS ARE INVOLVED.

Nov 18, 2024

VEHICLE SPEED CONTROL,ENGINE

1 complaint

The contact owns a 2021 Toyota Avalon. The contact stated that while driving at approximately 35 MPH, the vehicle failed to properly accelerate and stalled. The contact restarted the vehicle, and the vehicle drove as designed. There were no warning lights illuminated. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was contacted, and a claim was submitted. The approximate failure mileage was 15,000.

Feb 06, 2023

POWER TRAIN,SERVICE BRAKES,ENGINE

1 complaint

The contact owns a 2021 Toyota Avalon. The contact stated while diving approximately 50 MPH, the engine and transmission warning lights illuminated. The contact also stated that the windshield had detached from the frame. The contact stated that the rear doors were failing to close correctly. The contact stated the vehicle would roll with the brake pedal depressed before coming to a stop. While driving approximately 75 MPH, the steering wheel fractured and the air bags inadvertently deployed. Additionally, the headlamps and turn signals also failed to operate as needed. The vehicle was returned to the dealer who stated that front door master switch, the pillar and racket, the brakes, the headlamps, and turn signals needed to be repaired or replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was made aware of the failure. The approximate failure mileage was 2,500.

Aug 18, 2022

TIRES

1 complaint

Bridgestone Turanza EL440BW 235 45R18 94V is original equipment on my 2021 Toyota Avalon Hybrid. Mileage at the time of the incident was 11398. I saw what appeared to be splitting or separation of the lower depth of the tread. No loss of pressure. I brought it to the Toyota Dealer to check. They insisted I must have hit something and would not consider it a manufactures warranty. I replaced the tire out of safety concerns. I do not recall hitting or going over anything. I am attaching photos of the condition. I replaced the one tire with the same make and model but remain concerned that splitting of the tread could be dangerous. And still have 4 like tires on the car.

May 17, 2022

ELECTRICAL SYSTEM,ENGINE

1 complaint

The contact owns a 2021 Toyota Avalon HV. The contact stated that while driving, all the instrument control panel lights were illuminated. The vehicle was taken to the local dealer eight or nine times where it was diagnosed there was moisture in the brakes, the brake assembly, sensor harness, sensor in the grill, gear shifter, and hybrid sensor needed to be replaced. The vehicle was repaired. However, failure recurred. The contact stated that while driving the instrument panel, warning lights illuminated, and the hybrid system overheated. The pull over somewhere safe message was displayed. The steering wheel was stiff. The brake pedal was stiff and failed to depress. The contact was unable to control the vehicle and drove into a ditch was air borne and cross to the other side of road. The contact was able to drive away from the scene, but the vehicle shutdown and failed to start. The vehicle was towed to contact's place of business. There were no reported injuries, fire or air bag deployment. There was a state trooper on the scene but there was no police report filed. The manufacturer was not notified of the failure. The failure mileage was approximately 800.

Mar 15, 2022

Crash: 1

BACK OVER PREVENTION

1 complaint

The Rear Cross Traffic Warning signal is installed behind rear head rest, which muffles the alert sound to barely audible, even when setting is on high. Vanandergriff Toyota dealership in Arlington, Tx., verified this information to me after bringing my car in four times for service because I was not being warned of persons and vehicles passing behind me. I've called Toyota's home office and told nothing can be done, as it was installed this way, although I am still asking they remove muffling material or change location of warning equipment. It is very dangerous, as persons and cars are not always visible due to parking location or blind spots. This should be a recall item. All other warning signals on front of car work properly. I was told by company representative to just use drive-through parking! Consumer contacted Toyota customer service and the dealership in Arlington, Tx. where it was purchased. Consumer was told nothing can be done to fix the problem.

Jan 26, 2022

SERVICE BRAKES

1 complaint

ON EVERY AVALON 2021 I HAVE DRIVEN OR THE DEALERSHIP HAS DRIVEN THERE IS A THUNK WHEN BRAKING. EVERY CAR EVERY TIME. A TECH CASE WAS OPENED AT WESLEY CHAPEL TOYOTA AND TOYOTA OF TAMPA BAY 01- 21-2021 NEW CAR WAS PURCHASED 01-13-2021

Jan 22, 2021

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4.3/5.0

54 reviews

Frequently Asked Questions

How many problems does the 2021 TOYOTA Avalon have?

The 2021 TOYOTA Avalon currently has 20 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 TOYOTA Avalon?

The most common problems reported for the 2021 TOYOTA Avalon 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 2021 TOYOTA Avalon problem data come from?

All problem and complaint data for the 2021 TOYOTA Avalon comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.