2020 CHEVROLET TRAVERSE Engine And Engine Cooling Problems

The contact's son owns a 2020 Chevrolet Traverse. The contact stated that while driving at various speeds, the vehicle made an abnormal rattling sound, and the check engine warning light was illuminated. The vehicle was initially taken to an independent mechanic who could not perform the repair. The contact was referred to another independent mechanic, where it was diagnosed that a crack in the catalytic converter had caused a defect within the exhaust manifold. The contact was then informed that the failure was related to Technical Service Bulletin Number: PIP5681C and was referred to the dealer for assistance. The contact had taken the vehicle to the dealer, where the contact was informed that the vehicle no longer qualified for the TSB repair due to the mileage. The manufacturer was notified of the failure and made the same assessment. The contact was then referred to the NHTSA Hotline for assistance. The...

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving 55 MPH, there was an abnormally loud sound coming from the engine. The check engine warning light was illuminated. The vehicle was taken to an unknown dealer, where it was diagnosed and determined that the catalytic converter was leaking and there was a blockage in the catalytic converter. The contact was also informed that coolant was leaking into the engine. The vehicle was not repaired. The contact stated that upon lifting the hood, there was a rodent nest near the engine cover. The contact related the failure to GM Technical Service Bulletin Number: PIP5681C (Exhaust leak, Lean Codes, Rattle Noise, or Catalytic Converter Failure Codes); however, the vehicle was not covered under the TSB. The vehicle was not repaired. The manufacturer was notified of the failure and later informed the contact that the case was closed. The contact...