Engine Cooling System problems of the 2021 Chevrolet Tahoe

The contact owns a 2021 Chevrolet Tahoe. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling). The contact stated that the dealer was contacted; however, the contact was informed that parts were not yet available. The vehicle was not repaired. The manufacturer was contacted about parts availability. The contact had not experienced a failure.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving approximately 70 mph the vehicle stalled. The vehicle was towed to the local dealer who diagnosed the vehicle and determined that the engine had seized and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The contact was informed that the VIN was included in the NHTSA campaign number: 25v274000 (engine and engine cooling). The contact indicated that the vehicle had experienced the failure listed in the recall. The failure mileage was 47,000. The VIN was invalid.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at various speeds, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal. The contact was able to pull over to the side of the road before the vehicle stalled. The check engine warning light was illuminated. The vehicle was towed to a dealer; however, the vehicle was not diagnosed or repaired. The vehicle was then towed to the residence. The vehicle was again towed to the dealer, where it was diagnosed, and determined that an engine valve had failed, and the lifter lock pin spring had failed, which caused the engine to misfire and engine failure. The contact was informed that the engine needed to be replaced. The vehicle remained at the dealer unrepaired due to the cost. The contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included. The contact stated that the first year the vehicle was purchased the vehicle failed to restart, and several attempts were needed to start the vehicle. The vehicle was taken to the dealer. The contact stated that an unknown electrical system repair was performed. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was unknown.

The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, there was a loud revving and knocking sound coming from the engine compartment. The contact stated that later after starting the vehicle, the check engine warning light illuminated with the knocking sound coming from the engine. The vehicle was driven to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The engine was replaced, and the vehicle was repaired. The manufacturer was notified of the failure. The contact was informed that the VIN was not included in NHTSA campaign number: 25v274000 (engine and engine cooling). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 70,000.