NHTSA Complaint #11691552 — 2022 GMC SIERRA 1500

The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving approximately 80 MPH, the vehicle suddenly lost power, the engine began knocking, and the vehicle began to decelerate quickly until there was complete engine failure. The contact was able to coast to the emergency lane on the side of the highway. After the failure, several unknown warning lights illuminated on the instrument panel. The vehicle was towed to the dealer, who diagnosed the vehicle with engine failure. The vehicle was included in NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact stated that the engine was replaced. However, with less than 3,000 miles on the new engine, the knocking sound reoccurred while starting the vehicle and while the vehicle was idling. No warning lights were illuminated. The vehicle was returned to the dealer, who diagnosed the vehicle with engine failure and determined that the engine needed to be repaired, but confirmed that an engine replacement was not covered under warranty or recall. The manufacturer was informed of the first failure; however, they were not informed of the latest failure. The failure mileage was approximately 117,457.