2020 Chevrolet Traverse engine and engine cooling problems

“The contact owns a 2020 Chevrolet Traverse. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a fractured flex pipe. The mechanic informed the contact that the failure was associated with GM Technical Service Bulletin: PIP 5681C and Manufacturer Communication Number: 10211780 (Engine and Engine Cooling), and the contact was referred to the dealer. The vehicle was taken to the dealer, who confirmed the failure was not covered under warranty. The contact spoke with the manufacturer, who also confirmed that the vehicle was not covered under warranty. The manufacturer referred the contact to the NHTSA Hotline to file a safety complaint. The failure mileage was approximately 104,000.”

“The contact owns a 2020 Chevrolet Traverse. The contact stated that the exhaust system was sagging due to an improperly welded mounting bracket. The contact became aware that an exhaust system bolt was cracked and missing. The vehicle was taken to the dealer, where a technician confirmed that the weld on the exhaust hanger had separated from the subframe, causing the loud rattling sound of the exhaust system. Additionally, the check engine warning light was frequently illuminated, and the exhaust system was louder than normal. The failure mileage was 82,000.”

“The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. The contact stated that over time the sound became louder. The vehicle was taken to the dealer, where it was diagnosed with a cracked front exhaust pipe and battery failure. The contact was informed that the front exhaust pipe and battery needed to be replaced. The vehicle was repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 84,701.”

“The contact owns a 2020 Chevrolet Traverse. The contact stated that while operating the vehicle, there was a loud sound coming from the exhaust pipes, and the vehicle failed to properly accelerate, with exhaust fumes inside the vehicle. The vehicle was taken to the local dealer, who diagnosed that the exhaust mounting bracket had failed, causing the exhaust pipes to separate and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The contact was informed that the vehicle was not covered under a manufacturer-extended coverage that was associated with the failure. The failure mileage was 50,000.”

“The contact owns a 2020 Chevrolet Traverse. The contact stated that upon starting the vehicle, the exhaust system made an abnormally loud sound. There was no warning light illuminated. The vehicle was taken to an unknown dealer, where it was determined that the front clamp on the exhaust system was loose. The dealer tightened the clamp; however, the failure persisted. The contact related the failure to TSB Number: PIP5681A (Exhaust leak, Lean Codes, Rattle Noise, or Catalytic Converter Failures). The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 68,000.”

“The contact owns a 2020 Chevrolet Traverse. The contact stated that while the vehicle was parked and occupied in the vehicle, there was a rattling sound coming from the front of the vehicle while stationary or while driving. An independent mechanic was contacted. The vehicle was taken to a dealer, where it was determined that the exhaust mounts needed to be replaced. The vehicle was not repaired. The contact related the failure to Special Coverage Adjustment: N222385510 (Front Exhaust Pipe); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 118,000.”