NHTSA Complaint #11640815 — 2025 CHEVROLET SILVERADO 2500

The contact owns a 2025 Chevrolet Silverado 2500. The contact stated while driving 30 MPH, the engine light illuminated. There was an extremely loud knocking sound coming from the engine. The vehicle was taken to the local dealer and was diagnosed with a misfire in cylinder #2. There was no compression in cylinder #2. The vehicle was also experiencing catalytic convertor failure. The mechanic used a microscopic camera and determined that the cylinder wall and piston head were damaged. The contact was informed that the engine and turbo needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 30. The VIN was not available.