The Coolant Bypass Valve needs replacement and my car only has 94,000 miles on it I called Toyota to see if the part and labor were cover under their 100,000 miles/ 10 years warranty and they are saying that it is not,yet on Google and all over online forums it says that Toyotas corolla from 2019 to 2021 tend to eventually have this issue.

Source: NHTSA complaint ODI #11760516 · view all complaints for this vehicle at nhtsa.gov

Over the past year and a half I’ve had to deal with unknown reasons for at least 13 tire problems. And one of those problems was a complete blow out on the highway. When I went to get my spare tire and change it there wasn’t anything in the trunks spare compartment. I called the dealership and they said they don’t do that (meaning they don’t provide the car with a spare). I was very confused and stressed. I felt played and wasn’t made to feel confident in this purchase. That not the only thing. The electric system does pretty much whatever it wants. Changes my music, gives advice for things we didn’t ask and the volume is always highering itself and lowering just whenever it chooses. The airbag light has been on most of the time letting me know the passenger airbag isn’t on or working properly. The engine light has been on for at least four months now. I understand Warranty for regular checkups and maintenance but this feels a bit more serious than me making sure I’ve secured my warranty. I have called and taken the vehicle into both Toyota of Visalia and Toyota of Selma where I got financing for the vehicle. Toyota of Visalia wasn’t very much help at all and preceded to talk down to me. Toyota of Selma keeps giving me the run around and telling me different things about my warranty. This car isn’t worth the trouble my credit score goes through to secure it each month just to have something else fail me in it. At this point I’m trying to figure out how I’m going to replace the DC to DC because the car died a week ago and hasn’t turned back on since. And yes I’ve tried jumping the battery already. I’ve only had this car a year and a half. I wasn’t made aware of any issues with it when I drove it home that day. It was a nice ride home but less than a couple months I was already having questions about its performance. I really wish this complaint would even help but I’m just writing to probably waste my own time.

Source: NHTSA complaint ODI #11744107 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2021 Toyota Corolla. The contact discovered brake fluid on the clutch pedal, and the brake pedal was mushy while depressed. The vehicle was taken to the dealer, who determined that the brake master cylinder needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 89,900.

Source: NHTSA complaint ODI #11718784 · view all complaints for this vehicle at nhtsa.gov

Within a week of buying my vehicle in May of 2021 I went to Clearwater Toyota where I bought the vehicle from and complaining about the three seat belts in the back malfunctioning. When nobody is sitting in the backseat they sound off as if somebody is sitting there. I know that there is a recall on the front seat belt sensor doing this same issue for the Toyota Corollas but everyone I have spoken to that owns a 2021 Toyota Corolla complains about the back seats doing it as well the sensors misfire or sound off every hour as I'm driving at least once an hour. As an Uber Lyft driver I am concerned about my passengers in the backseat wearing the seat belts and the seat belt malfunctioning due to the sensors malfunctioning since I bought the vehicle in May of 2021. Any of the above questions I would have to stay unknown.

Source: NHTSA complaint ODI #11741728 · view all complaints for this vehicle at nhtsa.gov

During the lower interval settings, wipers will not work in proper order. Sometimes you may get three quick wipes and them the wipers will stop in middle of windshield for about 5-8 seconds. Sometimes the wipers are inconsistent with proper timing and will not properly work all the time.

Source: NHTSA complaint ODI #11740462 · view all complaints for this vehicle at nhtsa.gov

While attempting to change a flat tire on a 2021 Toyota Corolla Hatchback, two wheel studs sheared off completely, leaving the wheel unsafe to drive. My wife was stranded alone in the mountains with no cell service. She managed to loosen three lug nuts, but the final two were seized. When a passerby assisted, both seized studs snapped. The spare could barely be mounted. The vehicle has been serviced exclusively by Toyota dealers since new. Lancaster Toyota later replaced the broken studs free of charge, yet simultaneously claimed that another dealer, Frontier Toyota, had “switched the tyres.” so Lancaster are not responsible. That claim is false — Frontier’s invoice (Sept 25 2025) clearly shows only an oil change and inspection, no tire or wheel service of any kind. Replacing the studs at no charge while denying responsibility suggests an attempt to quietly resolve what may be a dealer-induced over-torque or defective-stud failure. The broken studs were not returned to us despite multiple requests — effectively withheld by the dealer, which constitutes unauthorized retention of customer property and prevents independent verification of failure cause. Toyota Corporate (case #251103002581) was notified but refused to investigate, referring the issue back to the same dealer. This complaint is being filed so NHTSA can document a potential wheel-stud safety defect or service-related failure and dealer mishandling of critical evidence that could conceal a wider safety problem.

Source: NHTSA complaint ODI #11697834 · view all complaints for this vehicle at nhtsa.gov