2021 Toyota RAV4 Powertrain (other) Problems

My 2021 Toyota RAV4 began experiencing intermittent shuddering and vibration at low speeds around May 2026. The condition occurred while accelerating from a stop or at slow speeds and became more frequent over time. Because the problem was intermittent, the dealership was initially unable to duplicate it. Independent inspection later found dark transmission fluid containing metal debris, indicating internal transmission failure. I was informed the transmission requires replacement or rebuild. My vehicle has approximately 94,000 miles, which is well below the expected service life of a modern transmission. The symptoms are consistent with numerous reported complaints involving Toyota’s UA80 automatic transmission and torque converter. An unexpected loss of smooth power delivery or hesitation during acceleration creates a potential safety risk, particularly when entering traffic or crossing intersections. I am submitting this complaint so NHTSA can investigate as this is a very dangerous and concearning issue.

NHTSA ID

11752345

Incident

May 1, 2026

Gear shift makes noise when moving it, as in you can actually hear the gears/electrical equipment moving and making noise when going from park to drive. The keyless entry when the fob is near, just doesn't work well from the drivers side... I can stand there trying to allow it to unlock and it just locks again or wont unlock the passenger door even if allowing it extra time to.

NHTSA ID

11740401

Incident

May 1, 2026

Car makes a whining noise Toyota Pinellas park said it was normal but the transmission is jolting/slipping not accelerating vs the first test drive. Both cv axles were bad tires were bald when sold to me tps sensors were bad. Had to get a new set of tires and paid the Toyota for work on the vehicle

NHTSA ID

11737608

Incident

Dec 31, 1969

Transmission failed at 105,000 miles Quotes to replace $8000

NHTSA ID

11735971

Incident

Apr 30, 2026

My Toyota hybrid AWD vehicle experienced corrosion of the rear traction motor cable, which Toyota has acknowledged in Service Campaign 25TD01. This corrosion affects the electrical connection to the rear drive motor and can result in loss of AWD propulsion capability. Loss of rear-wheel propulsion significantly reduces traction and stability, particularly in snow, ice, and wet conditions. Drivers may believe the vehicle still has AWD capability when in fact the rear drive system is compromised. In addition, the vehicle’s adaptive cruise control system repeatedly turned off unexpectedly while driving and displayed “unavailable” warnings. These malfunctions occurred alongside the electrical issues related to the rear traction motor cable corrosion, suggesting the defect may affect multiple vehicle systems. Toyota has acknowledged this defect through Service Campaign 25TD01 but has not issued a safety recall. Given the potential for loss of propulsion and malfunction of driver-assistance systems, this issue should be investigated as a safety defect.

NHTSA ID

11723795

Incident

Dec 1, 2024

The entire transmission failed according to the Toyota Service Center in Hyannis, MA. My vehicle is only 5 years old, only has 42,245 miles, no history of any accidents, I am the only owner, and had regular and consistent service. My vehicle is available for inspection. I am now part of the class action lawsuit against Toyota for knowingly selling cars with the defect in the UA80 8-speed automatic transmissions and torque converters. The transmission failed while I was on the road driving, which could have been a potentially very dangerous situation. The vehicle was inspected by the independant Ira Toyota Service Center of Hyannis. There were 5 different warning lights that suddenly came on while I was driving, and I immediately went straight to the nearest Toyota center as soon as the lights came on. Apparently, according to the class action lawsuit, engineers warned Toyota about the flaws in the UA80 8-speed automatic transmissions and torque converters, but they sold vehicles with them anyway. I am not the only victim. I informed toyota of the issue, but they will not repair it. Here is information about the class action lawsuit that many others are part of now too: [XXX] Here is another lawsuit in NJ for the same issue: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11722853

Incident

Feb 17, 2026

‘Voltage abnormality, power steering low’ error message has appeared three separate times. All while vehicle is idle at stop light or parked, last incident car was unable to restart immediately. All dashboard lights came on, including message saying parking hold unavailable. Mechanic confirmed no issues with 12v battery health and unable to recreate issue. Loss of power is risk to safety, possible draining of battery due to unknown issue

NHTSA ID

11712564

Incident

Jan 19, 2026

The contact owns a 2021 Toyota Rav4. The contact stated that while her daughter was dropping her off, the daughter shifted to park(P), and the vehicle made an abnormal static sound. The contact stated that the failure recurred upon shifting to drive(D). There was no warning light illuminated. Additionally, the contact stated that there was an abnormal sound coming from the engine. An independent auto electrician was contacted and informed the contact that the abnormal sounds could be related to an engine failure; however, the vehicle was not diagnosed or repaired. The vehicle was taken to the dealer, where the contact was informed that no failure was found. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 67,314.

NHTSA ID

11699009

Incident

Nov 12, 2025

Mileage

67,314 mi

I have a carbon monoxide leak going on since I bought this vehicle. I have been complaining about noises I have been hearing from the drive train and got a diagnosis from the same dealer with well over 1k worth of work. This has caused me a lot of lost money since I have been from dr to dr and back and forth with the dealership and now I tested for carbon monoxide and it’s leaking into my vehicle the dealer keeps telling me it’s fine it need a tune up or evap system clean. I am not able to drive this car safely and I have permanent brain damages from the carbon monoxide gas

NHTSA ID

11688113

Incident

Sep 18, 2025

1. My vehicle had a hybrid warnings and stopped running altogether, but the issue went away after clearing the codes. It came back at 105000mi, Toyota won't help with the $6000 repair. High Voltage Under Floor Cable and Traction Motor Cable on my vehicle (2021 Hybrid Rav4 XLE registered in Massachusetts) is affected by excessive and dangerous corrosion due to a Toyota design issue. 2. The vehicle could suddenly shut off at highway speeds per Matt with Service at Autofair Toyota Tewksbury. Sudden stoppage or deceleration may result in fatal collisions at speed. This failure also leads to fatally high-voltage energizing of the chassis and other frame components in some cases. 3. This is a known design flaw on Toyota hybrid, high-voltage cables/connectors, leading to excessive corrosion and dangerous failure of the hybrid system. There is an extended Toyota customer support program (CSP: 22TE09) valid through 8 years or 100000mi. I purchased the vehicle at 92,000mi but the dealership (CarFive Nashua, NH) and Toyota failed to inform me of this issue (a standard procedure per the CSP) so I could make an informed decision and perform preventative maintenance. Toyota did send me notice of an airbag recall after purchase, so I know they had my information. Now they have left me without options at 105000mi. 4. Yes. It has been inspected and the high voltage cable corrosion confirmed by Autofair Toyota Tewksbury (MA). Image from diagnosis video attached. 5. Warning messages in OBD2 screenshot attached. 6. I'm looking for Toyota to cover the repair for this issue; I've had to repair a valve head gasket and replace the AC system condenser already and this car is barely 4 years old.

NHTSA ID

11686648

Incident

Sep 6, 2025

"What component or system failed or malfunctioned, and is it available for inspection upon request?" Coolant bypass valve is malfunctioning. "How was your safety or the safety of others put at risk?" unknown "Has the problem been reproduced or confirmed by a dealer or independent service center?" Service manager at Tuscaloosa Toyota confirmed problem without even inspecting the vehicle. He told me I am not the only Toyota customer experiencing this problem. "Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others?" Vehicle nor component has been inspected by manufacturer. "Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?" Warning alert that reads 'engine maintenance required' has been appearing on the vehicle's dashboard for over a year now.

NHTSA ID

11664314

Incident

Jan 1, 2024

While turning slowly, right tun, into a parking space, the vehicle lunged forward at a much higher speed than anticipated. The vehicle jumped the sidewalk, went up an embankment, about 20 degrees, and about 25 feet until it stopped on its own. Happened on April 14th, 2025, about 11:30 am. Driver was is good health, no medical conditions. Driver also has a clean driving record, no infarctions. The vehicle jumped a curb 4 inches high, ran over some light brush, but luckily no damage to vehicle. There are train tracks about 15 feet away, which could have been another incident. Driver says when she slowly pulled into the spot, the car lunged forward, with good thrust, and I am a witness to this incident.

NHTSA ID

11655028

Incident

Apr 14, 2025

Abs lights have been on since i bought vehicle the dealership that sold it to me CLEARED the code and did not fix vehicle.

NHTSA ID

11648480

Incident

Aug 28, 2024

Vehicle stumbles on moderate acceleration from slow speed, hesitates shifting also. Problem has persisted since new. Dealers rep "they're all like that. can't find any problem. No warning lamps. I think there is a TSB but it seems well hidden. I feel it is a safety issue - acceleration from low speed compromised. We have 2 more 2021 rav4s in the family that do not do that. I believe Toyota knows about this problem. Also had a problem with vehicle slamming violently into lower gear when coming to a stop. Dealer could not find problem. I checked vehicle and found air filter housing not properly secured. I latched it properly and that seemed to solve slamming into lower gear problem. Dealers mechanic (?) must have not latched it properly after 12 month service. No telling how much dirt was sucked into engine while that was happening. The stumbling/ drivability hesitant shifting problem persists. Several people have reported this problem. One was fixed by a dealer attending to a software problem. This is a known problem that is being ignored. This has happened since new Jan 29, 2021.

NHTSA ID

11491897

Incident

Jan 29, 2021

I have been having continuous problems with the transmission jerking and slipping passengers can also feel this. I am also experiencing vibration in the steering when you get up to high speeds around 60-80 mph. The car also has a habit of lunging forward suddenly when the gas saver light goes off which can cause it to hit other vehicles.

NHTSA ID

11474455

Incident

Jul 17, 2022

I was reversing. I exited vehicle The Car was either not in park or fully In park. I got something from the back seat, turned around and the car with drivers door wide open was barreling towards me. I barely managed to get into the car. I do not think tjr car was reversing when I reached into the backseat. It appeared like it was a delayed reaction. The car door was damaged as it hit the side of the garage. I am so grateful nobody got hurt. Do not want this to happen to anyone else. (I run and miraculously made it inside the car. Most would not have.

NHTSA ID

11466557

Incident

May 26, 2022

TL* THE CONTACT OWNS A 2021 TOYOTA RAV4. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE GEAR SHIFTER DISENGAGED, PREVENTING THE CONTACT FROM SHIFTING GEARS. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO TOYOTA OF DEERFIELD BEACH (1441 S FEDERAL HWY, DEERFIELD BEACH, FL 33441) WHERE IT WAS DIAGNOSED HOWEVER, NOTHING WAS REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 2,000. THE VIN WAS NOT AVAILABLE.

NHTSA ID

11404841

Incident

Nov 16, 2020

Mileage

2,000 mi

TL* THE CONTACT RECEIVED A 2021 TOYOTA RAV4 AS A LOANER VEHICLE FROM SERRA TOYOTA (1300 CENTER POINT PKWY, BIRMINGHAM, AL 35215) AS HIS PERSONAL VEHICLE WAS AWAITING REMEDY REPAIRS FOR NHTSA CAMPAIGN NUMBER: 20V682000 (FUEL SYSTEM, GASOLINE). THE CONTACT STATED THAT WHILE DRIVING THE LOANER VEHICLE AT AN UNDISCLOSED SPEED, THE VEHICLE STARTED JERKING WHILE ACCELERATING. THE DEALER WAS MADE AWARE OF THE ISSUE HOWEVER, THE CONTACT WAS INFORMED THAT THERE WAS NO OTHER LOANER VEHICLE AVAILABLE. THE CONTACT INFORMED THE MANUFACTURER AND A CASE FILED. THE FAILURE MILEAGE WAS 2,935. THE VIN WAS UNAVAILABLE.

NHTSA ID

11403677

Incident

Feb 1, 2021

Mileage

2,935 mi

MY SPOUSE WAS DRIVING THE CAR AND SHE COMPLAINED TO ME THAT OUR NEW 2021 RAV4 SUDDENLY LURCHES WHEN SLIGHTLY ACCELERATING FROM A ROLLING STOP. I THEN DROVE WITH HER AND WITNESSED THE SAME ISSUE ALTHOUGH I COULD NOT REPLICATE IT MYSELF. I TOOK THE CAR TO THE TUSTIN TOYOTA DEALERSHIP (FROM WHERE I PURCHASED THE CAR) BUT THEY WERE NOT ABLE TO FIND ANY ISSUES OR REPLICATE THE PROBLEM. THAT BEING SAID THE CARS ARE SO NEW THAT IT MAY JUST BE THAT THERE AREN'T ENOUGH NEW OWNERS YET TO REPORT THE PROBLEM.

NHTSA ID

11382724

Incident

Dec 7, 2020

Mileage

25 mi