NHTSA Complaint #11551393 — 2017 CHEVROLET SILVERADO 1500

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the contact removed his foot from the accelerator pedal to depress the brake pedal while approaching a stop light, the vehicle stalled. The contact cycled the key several times when the vehicle started. A message displayed on the instrument panel “Evaporative Emission System Pressure System/Switch range/Performance”. The contact stated that he was concerned for safety while driving the vehicle. The contact stated that on a separate occasion while driving at an undisclosed speed, he heard a knocking sound coming from the hood of the vehicle. The contact then used a code reader to diagnose the vehicle and retrieved DTC code: P0451 – (Evaporative Emission System Pressure) and P0304 (Cylinder 4 misfire). The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that a claim would be started after the vehicle was taken to the dealer. The failure mileage was approximately 160,000.