The car accelerated on its own when I was attempting to park it. I had no control over the car and it ended up crashing into multiple vehicles.
- NHTSA ID
- 11734684
- Incident
- Apr 10, 2026
Owner-reported complaints naming the driver-assistance system, filed with NHTSA
Data refreshed
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2021 Toyota Corolla submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 13 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
The car accelerated on its own when I was attempting to park it. I had no control over the car and it ended up crashing into multiple vehicles.
I was sitting idle in my car. The two cars crashing icon came on even though I was in the parking lot doing nothing. There was also issues with the other indications where I would use the back arrow on my steering wheel to clear the issue and it would not clear. Seems unsafe and scary.
Coolant bypass valve needs replaced. Car states 'engine maintenance required visit dealer.'
Glare in the cluster panel during the day. This causes me to not be able to see what is being shown on the cluster panel such as speed, engine temperature, or any other warning lights. I believe not being able to see the speed I am going because of this design error is very dangerous.
I purchased my Toyota corolla SE 2021 in May 2021 with 11 miles on it. I received safety connect trial for one year. It was so unsafe. I believe there was an invasion of privacy because after requesting my data held at Toyota Corp., I read of times of install/deactivation that were not proper in accordance of my purchase and my understanding of the set up at time of purchase. It appears this safety connect was already connected before my purchase, which is a safety issue and is a violation of privacy and lead to data breach. With my connected device, iPhone, acting crazy and miss reading my locations and redirecting, etc., I was on my way to Apple in December 2021 with 2016 miles on my car. I believe the remote connect was being controlled by others as up to five devices are allowed on the module. GPS worked accordingly obviously, because when I exited the interstate, immediately my engine stalled out at 50 miles an hour in the rain. I was scared to death and found the closest gas station to pull over and stop my engine. About 30 minutes later, I continued to apple, 1 mile away. After restarting my car, I was alerted to be safe and contact my provider. I found out that that meant that my control module was blown. This has affected me in a few ways. Maps have read I am in China, South Florida, north, Florida, Georgia, California. I also went to the local Toyota for an oil change and tire rotation in October 2022 and learned that I needed a tire replacement and the pressure was down to 15 pounds. No light appeared. If the communication module is destroyed, then all of the safety features are, as well. No lights alert, no Blindspot warning days, automatic emergency, braking has failed as well, as I recall when it worked and it is not even sensing a vehicle or anything in front of it. Also the red signs that display, stop, certain miles per hour, etc. are reading incorrectly. Furthermore, Toyota wants to disclaim all warranties associated.
Around 1900-2000 miles of ownership, 6 months after purchase, I was driving on I95 in the rain, 65 MPH, traffic in West Palm Beach, Fl, on my way to Apple(Mall). Upon exit, my engine completely stalled out. I pulled off road, not smoothly at all, turned off the car and it restarted 30 minutes later so I resumed my travels. The next day, my vehicle alerted me that the communication module had blown, not in those words. I had called Toyota and told the representative of the spoken alert and she informed me to go to dealership. They were clueless how to fix and reset battery. This communication is vital for all modules to perform safety features. Today I had a large screw in tire and no alerts of low pressure. Tire read 12 lbs pressure. My lane departure/correction doesnt work half of the time. My attorney has informed me that he hears there are concerning issues involved and noncompliance has led to him filing suit today. Software Source code leaked and left open on GitHub for 5 years has compromised the safety of all connected customers and their devices.
My 2021 Toyota Corolla, with 3000 miles and less than a year on it, is repeatedly exhibiting a "check gas cap" warning message followed a day or two later by a "check engine, visit your dealer" warning. This has happened twice. I have returned to the dealer once to have the system reset, after which the same sequence of warning messages recurred. This message wipes out my dashboard display and keeps me from using my cruise control and radar distancing feature. I have not yet determined what other safety features are neutralized by this recurring malfunction. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
The problem seems to occur when activating the Full-Speed Range Dynamic Radar Cruise Control (DRCC) feature, as detailed next. During a recent trip, the car behaved in a potentially dangerous, life-threatening manner when the DRCC function was activated. Specifically, the car seems to increase the RPM of the engine to dangerous levels when going down a slope even if there is a speed limit set using the cruise control. In other words, the car does not change gear properly to keep the RPM in normal ranges. The engine’s RPM getting close, entering the red zone indicated by the RPM tachometer, and staying there even for seconds may cause an engine explosion which at highway speeds can be extremely dangerous for the passengers and other nearby vehicles on the road.
Got in the car this morning and the check engine light came on. Needed to get to work so started driving. About 5 minutes later car started shuttering and reduced engine power displayed. Had to do 20 MPH all the way to work. Did not make for a good morning. The lane keep assist and other safety features were turned off as well. Not very safe when driving.
The vehicle does not keep the set speed. Ex. When cruise is set to 65, the vehicle will remain at 64 never making it to 65. This occurs with clear road ahead and no traffic.
The contact owns a 2021 Toyota Corolla. The contact stated while attempting to park the vehicle when depressing on the brake pedal and the vehicle accelerated independently and crashed into a building. The contact stated the "vehicle was needing to be serviced" warning light was illuminated. The air bags did not deploy. The contact did not sustain any injuries or seek medical attention. A police report was filed. The contact towed the vehicle to an unknown location. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 4,000.
AFTER PURCHASING MY COROLLA MY CAR POWERED DOWN. I TOOK IT BACK TO THE DEALERSHIP AND THEY CHECKED IT AND STATED THERE WAS NOTHING WRONG WITH IT. THIS WAS IN NOVEMBER 2020. ON 1/16/2021 I WAS DRIVING ON A HIGHWAY AND THE SAME THING HAPPENED, EVERYTHING JUST POWERED DOWN. I WAS FORTUNATE ENOUGH TO GET THE VEHICLE OFF THE ROAD AND CALLED THE DEALERSHIP. THIS WAS AROUND 6:00PM. I THEN CALLED MY FAMILY AND TOLD THEM WHERE I WAS AND WHAT HAPPENED. A PASSERBY STOPPED TO ASSIST ME AND GOT MY CAR RUNNING BY JUMPING IT OFF. AN HOUR LATER I WAS SITTING IN A PRIVATE DRIVE WAITING ON TRAFFIC TO PASS BEFORE PULLING OUT. THE NEXT THING I KNOW I WAS HIT BY ANOTHER VEHICLE. THE VEHICLE THAT HIT ME THEN WENT OVER TO THE OTHER LANE AND SIDESWIPED A TRUCK THAT HAD A LOW BOY TRAILER ATTACHED TO IT. IT IS MY UNDERSTANDING IS THAT WHEN THE TRUCK HIT THE OTHER TRUCK AFTER HITTING ME THAT IS WHEN THE 3 PEOPLE IN THE TRUCK WERE KILLED. TWO OF THE PEOPLE WERE EJECTED AND THE OTHER PARTIALLY EJECTED. THE PEOPLE IN THE 2ND TRUCK TOLD POLICE THAT I FAILED TO YIELD THE RIGHT OF WAY. THEY NEVER ASKED ME WHAT HAPPENED AND TOOK THE OTHER DRIVERS WORD AT WHAT HAPPENED. THERE WERE NO SKID MARKS FROM EITHER TRUCK ON THE ROADWAY. IF I WAS PULLING OUT I AM SURE THERE WOULD BE SKID MARKS.*DT*JB
ON 4 OCCASIONS, AFTER ENGAGING CRUISE CONTROL (65MPH) THE STEERING WHEEL WENT HARD AND IT APPEARED THAT THE WHEEL ALIGNMENT WAS OFF AND THE VEHICLE VEERED LEFT AND IT WOULD CREATE TO SMALL AMOUNT OF TORQUE ON THE STEERING WHEEL. AGAIN, ONLY WHEN I ENGAGED THE CRUISE CONTROL. VIN: [XXX] (THERE IS NO "Y") (CHANGE "Y" TO "T". SORRY :-( INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
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