Toyota Corolla engine failure problems

Filed Sep 1, 2026 · Steering · 75,000 miles · TX

The contact owns a 2022 Toyota Corolla. The contact stated that while driving 30 MPH, the steering wheel seized, with the message "Power Steering Low" displayed. The master warning light illuminated, and the vehicle veered off into a ditch. The vehicle was towed to the residence. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 75,000.

Filed Jul 23, 2026 · Driver assistance, Engine · TX

While driving in the middle of active traffic, the vehicle experienced a sudden and dangerous loss of motive power. The first indication of a problem was the A/C abruptly blowing hot air. Immediately following this, the vehicle began violently shaking before the engine stalled completely. The low oil pressure warning light was triggered on the dashboard. Losing all acceleration in the middle of active traffic created an immediate, severe crash hazard. The engine failure occurred after a franchised dealer service department failed. They had said at the dealership that my oil was fine. They didn’t even check it.

Filed Jun 29, 2026 · Transmission · 90,330 miles · GA

The contact owns a 2020 Toyota Corolla. The contact stated that while driving at an undisclosed speed, the clutch failed to operate as intended. The contact stated that the clutch seized, and the RPM increased. No warning lights were illuminated. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact stated that the failure reoccurred. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,330.

Filed Nov 6, 2025 · Wheels · CA

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 the federal safety agency 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.

Filed Jun 26, 2025 · NV

Toyota defectively designed and/or manufactured coolant bypass valves ("the Defect") that prematurely fail. When the Defect manifests, coolant leaks out of the closed-loop coolant system. This adversely impacts the ability of the coolant system to properly regulate the temperature of the engine, and can lead to engine overheating, stalling, increased emissions and catastrophic engine failure. In addition, the leaking coolant can leak into the surrounding engine components, including the electrical system, and damage those components. The leaking coolant can also corrode the sensor on the coolant bypass valve, which causes it to remain stuck in the "open" or "closed" position and thus impedes its ability to properly direct coolant throughout the engine, thereby impeding the ability of the engine to operate within the appropriate parameters. When the Defect manifests, it also causes a message to appear on the dashboard over the speedometer, which states: "Engine Maintenance Required" and "Visit Your Dealer." The message cannot be dismissed or otherwise removed from the dash of the Class Vehicle by the operator of the Class vehicle, and instead must be brought to a dealership or to a mechanic. The message is distracting and obscures a significant portion of the speedometer. blocks other important, safety-related messages that are intended to display in the same area of the dash occupied by the message. Cars system reads “engine maintenance required” due to coolant bypass valve, car is only at 42,000 (6,000 miles past warranty) was told it’s not covered under powertrain warranty and was charged almost $1000 to get it fixed

Filed Mar 25, 2025 · Steering, Transmission · 43,000 miles · CA

The contact owns a 2016 Toyota Corolla. The contact stated while driving at an undisclosed speed, the vehicle downshifted with no warning light illuminated. The contact also stated that the steering wheel seized with no warning light illuminated. The contact stated that the steering wheel became difficult to turn. The vehicle was able to restart. The vehicle was taken to an independent mechanic, where it was diagnosed that the steering module and the transmission had failed and needed to be replaced. The vehicle was not repaired. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 43,000.

Filed Mar 12, 2025 · Engine · MI

Upon startup in cold weather conditions, a brief but loud grinding/rattling sound will occur. The noise is related to an inadequate spring inside of the intake camshaft gear which will not push a small cylinder in place to lock the intake camshaft gear in place. When not in its proper place, the gear will rattle in its housing, causing the brief noise. If the gear rattles against its housing too hard overtime, it can break and cause catastrophic engine failure by sending metal pieces into the engine, including pistons and rods.

Filed Nov 22, 2024 · Airbags, Brakes · 500 miles · TX · crash · 1 injury

The contact's daughter owns a 2025 Toyota Corolla. The contact stated while her daughter was driving at 60 MPH and switching lanes, the driver noticed a stopped truck on the road. The contact stated that the driver depressed the brake pedal to stop the vehicle, but the vehicle made an abnormal squealing sound, lurched forward, and failed to respond. The driver depressed the brake pedal with both feet, and the vehicle decelerated but failed to stop as needed, causing the front passenger's side of the vehicle to drive under the rear of the unoccupied truck and to crash into the truck. The air bags failed to deploy. The contact's daughter was able to exit the vehicle. The check engine warning light and other unknown warning lights were illuminated after the crash. The vehicle was reversed out of the rear of the truck and was driven to the driveway of the residence, where the engine failed. The contact stated that the vehicle had failed to start and was undrivable. The contact's daughter sustained whiplash, body soreness, lower back pain, a seat belt mark and bruises under the chest. The contact's daughter was later taken to the ER, where she underwent CT scans and X-Rays, but no further injuries were found. A police report was filed. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 500.

Filed Nov 19, 2024 · Brakes, Driver assistance · IL

Multiple malfunctions causing the engine to misfire and eventually seize completely. Toyota never found out the issue but the engine failed. The suspect poor build quality. The engine, brake collision system, fuel pump all went out. Car was rough idling for about two weeks before the engine completely failed. Toyota has lemoned it.

Filed Oct 28, 2024 · TX

I have a 2020 Toyota Corolla. "Engine Maintenance Required; Visit Your Dealer" came on the display after I brought my car to the dealership. I returned to the dealership and was told it was $250 to diagnose the problem. I waited a month later and brought my car back for an 80,000 inspection at the Longo Toyota in Prosper Texas. They diagnosed the problem this time and said they would have to replace the Coolant Bypass Valve and Hose for ~$800 plus labor costs. The risk of not repairing these parts is possible engine failure or fire. I've seen many other discussion forums where people are experiencing the same problem with Rav4, Corolla, and Camry models 2020-2023. These parts are not covered under warranty and would have to pay out of pocket for the repairs. Toyota should issue a recall since many people are reporting these same issues, creating out-of-pocket costs for the repairs for >$800.