2021 TOYOTA COROLLA Electrical System Problems

On December 12, 2025, I was in a head on car accident in my 2021 Toyota Corolla nightshade. I was slammed into the steering wheel which caused injury. My car has over $14,000 worth of damage to the front yet my airbags did not deploy. I have taken my car to Toyota several times over the past few years and every time I’ve asked about a remedy for this recall I’ve been told there is no remedy as early as June or July 2025 I had to bring my car in for a manufacturer defect with the engine that Toyota fixed for free. I asked them about the recall on the airbags. They again told me there was no remedy.

The navigational systems shuts off in the middle of driving. The screen will go completely black making it unsafe when using navigational directions. The system also shuts off at the slightest pot holes. Windows also won’t work when trying to put them down from the drivers side

The problem of windshield wipers going off either once, or at varying speeds has not been able to be reproduced by my Toyota dealership. It goes off right when I turn the car on 50% of the time and is very inconsistent. Wipers typically go off after using the turn signal, making long turns (such as into a parking spot), and driving on long curved roadways. It has been inspected and nothing has been found. There are no warning lights or messages.

My vehicle was backed into while ì was inside of it in a parking lot. Due to my horn failing., I was unable to alert the other driver to see me. The clock spring is what failed the first time at 95k they replaced it. I'm now at 147k and it failed again . Now I'm discovering that if it does not work, there's an electrical circuit failure and that the airbag will not deploy if I get in an accident. This is a serious safety issue and I feel Toyota should be responsible for it for the life of the vehicle . A horn should never go out. Especially if it not working will keep my air bag from functioning properly . 850 out of my pocket is way steep. The replacement part lasted half as long as the original part did when I bought the car that to...

My 2021 Corolla showed an ENGINE MAINTENANCE REQUIRED message. This message pertains to replacing the ENGINE COOLANT BYPASS VALVE - a common occurrence for the 2019-2023 corolla/rav4 models. I have seen multiple instances online of complaints of this same issue around the 50k-60k mark of the vehicle. This SHOULD be a RECALL due to how common the problem is. I’m here to add on to that TALLY of complaints that have already been submitted.

I just had to replace my transmission. 2 days later I have my check engine light, secondary collision, pre collision and parking brake malfunction lights came on. There is a osc recall that could cause these issues, but they’re saying stated my specific vehicle isn’t under a recall

My 2021 Toyota Corolla's engine coolant bypass valve has shorted out once again. This is the second time this has happened in less than 40,000 miles. The vehicle has been inspected by two different dealers one two separate occurrences for the same issue, even after replacing the failed equipment.

Engine coolant bypass valve malfunctioned at 34xxx miles, causing “engine maintenance required” this could cause the engine to get too hot or not hot enough and affect the internal components of the engine. After speaking to others with the same model and even other models, it seems to be a ongoing issue for many people.

Vehicle has numerous electrical/mechanical issues that seem to stem from an autonomous learning remote sensor. The problems include, but are not limited to 1. Seatbelt sticking on driver’s side, problem resolves itself, possibly after someone has had a good chuckle on satellite watching the driver struggle to disengage the safely belt, 2. Trunk remotely popped at speeds ranging from 0 (park) to 70mph on highway, 3. Ignition light on and off, usually correctible by disengaging and reengaging battery lead, 4. Car shutoff and burglar alarm engaged while in park, again , correctible by disengaging and engaging battery lead, 5. Car gas gauge reading false on the light side ( less than E), then after disengaging and engaging battery lead, reverts back to 1/4 tank, 6. Clock time changed, presumably after vehicle shutoff and restarted in the middle of the night. Clock reset via auto computer, etc. All incidents are usually...

My car shows that the vehicle needed to be serviced, in checking the Toyota app I saw there was a warning for the adaptive lighting system/electrical concern. The warning light had been on for some time, thinking I was due for regular maintenance like an oil change I had ignored it for a bit. Everytime I would start the car this warning would appear. I too the car in for service, they also did a 20k maintenance service and kept the car overnight overnight as they were unable to locate the issue same day. The following day I was advised they couldn't determine the issue and they cleared the code.

I am making a complaint about my 2021 corolla SE because I am constantly running into issues that cost and are not my fault as to why these issues have come about. I bought my car in March 2021, in May 2021 my car hit a bump in the highway and cracked my rim and bust my tire. Luckily I have alloy and tire coverage so I did not have to come out of my pocket. Next, my two front tires are constantly wearing down on the inside of the tread making the wires be exposed and causing me to have a blow out or needing to replace my tires at least 4 to 5 times since I have had my car. My car only has 71,000 on it to need that many tires replaced. I go and get my car serviced where I purchased my car at the toyota...

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...

When I was driving on the freeway on January 21, 2022, I had my iPhone X plugged into the car's infotainment system via USB to enable Apple CarPlay and navigate using Google Maps. In the middle of driving, the navigation system lost accuracy of my precise location. It continuously kept rerouting, as it believed that I had exited the freeway and was now on the side street. GPS precision is unreliable when the connected phone is not unlocked and on the Google Maps app (sometimes it works, sometimes it doesn't). This is obviously a safety hazard, since I have to exit the Google Maps app on my phone, reopen it, and reroute to the location so the software accurately picks up my location (luckily, the car has lane-trace assist). Another issue is when using Google Maps (an issue with all navigation app, really; here I use Google Maps as an...

While driving the vehicle the brake hold system was activated at a red light. While proceeding through the light within (about) 5 minutes the vehicle indicated a brake hold malfunction. An odor of smoke was also present, at that point I turned off the vehicle and inspected the origin; the trunk. Upon opening the trunk the right side had a sizeable fire growing towards my assets. Police did arrive on scene, an adjuster has examined the damages, however this has not seemed to be replicated. I believe the risks associated with this incident are quite evident. There was no collision.

After bringing my 2021 Corolla into a certified mechanic that I personally trust is the most skilled and talented for Toyota brand, as a specialist for asian make vehicles. I was told that my unit was given a old battery despite the year of my vehicle. The safety of starting the engine was discovered 3 days ago. When I couldn't start the Car. I brought it to mountain view auto mechanics, in mountain view, CA. The mechanic I spoke with visually scans the engine and said that everything was not tampered with, but requires a replacement battery, by the Toyota dealership; any of the locations. Because the car is a 2021 it falls in the category of standard brand new warranty. A diagnostic fee has been said by Toyota of Stevens creek of the amounts of 230.00$ to find the issue. Even though I in with in warranty. I work...

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.

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...