2021 CHEVROLET CAMARO Power Train Problems

The failure involves the powertrain, specifically the 10-speed automatic transmission and its internal Transmission Control Valve (TCV) located within the valve body. The transmission has failed, and a GM dealership determined that the entire transmission requires replacement. The vehicle is currently inoperable, and the transmission is available for inspection upon request. My safety was put at risk due to abnormal transmission behavior. GM issued a recall for this vehicle related to excessive wear of the Transmission Control Valve, which can cause abnormal downshifting and, in some cases, wheel lock-up during downshifts. Sudden or unintended downshifting at speed presents a serious safety risk to the driver and others on the road. The failure has been confirmed by an authorized GM dealership, which diagnosed the transmission failure and stated that a full replacement is required. The vehicle has been inspected by the dealership, and the recall remedy was performed in July 2025....

My 2021 Chevrolet Camaro has experienced repeated transmission-related issues and has now suffered a complete transmission failure at approximately 74,000 miles. GM previously performed the Transmission Control Valve (TCV) recall on my vehicle, but the recall was only a software update to monitor for excessive valve wear. It was not a repair. The recall notice states that excessive TCV wear can affect hydraulic pressure, torque converter lockup, and downshifting behavior, and GM created software to continuously monitor for this excessive wear to prevent a potential wheel-lock condition. Despite this, my transmission has continued to have problems. In March 2025 I brought the vehicle in for a check engine light, and again in April 2025 for additional transmission-related issues. The service history does not clearly state what repairs were performed, only that transmission service was done. We have brought the vehicle in multiple times for check engine lights and for all...

The contact owns a 2021 Chevrolet Camaro. The contact stated while driving at an undisclosed speed, the vehicle briefly jerked and jolted before returning to normal functionality. The contact stated that the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that a software update was needed. The vehicle was repaired, but the failure reoccurred. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V148000 (Power Train); the VIN was included, but the vehicle was already repaired under the recall. The manufacturer was not notified of the failure. The failure mileage was 80,000.

I AM NOTIFYING NHTSA OF THIS INCIDENT FOR THE RECORD. I PURCHASE THIS VEHICLE ON 9/30/2020 ... AFTER 3 SHORT TRIPS TO KEEP FLUIDS MOVING AND THE BATTERY CHARGED DURING THE BREAK IN PERIOD THE CAR HAS BE SETTING UNDER A CAR COVER WITH 426 MILES ON IT. I AGAIN STARTED TO GO FOR A RIDE ON 1/17/2021TO DO ANOTHER BREAK IN RIDE. THE CAR STARTED WELL AND WHEN I PUT IN DRIVE I NOTICED A SHUTTERING AND THE TRANSMISSION INABILITY TO SHIFT SMOOTHLY. AFTER JUST A FEW MILES I NOTICED SHIFTING AND SLIPPING WAS STARTING TO BE MORE FREQUENT SO FOR SAFETY REASONS I BROUGHT THE CAR BACK HOME. WHILE TURNING INTO MY STREET THE CAR TRANSMISSION FAILED AND SLIPPED AND STOPED IN THE MIDDLE OF A TURN JUST NARROWLY AVOIDING AN ACCIDENT. THE TRANSMISSION IS ALL OVER THE PLACE WHEN SHIFTING, ENGAGING AND TAKING OFF. THIS CAR CAN...