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 vehicle had yet to be repaired. The failure mileage was approximately 90,100.

Mileage: 90,100

The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at undisclosed speeds, there were abnormal sounds coming from the exhaust system. The contact stated that the vehicle sounded like a motorcycle. The contact stated that the check engine warning light was illuminated, and DTC: P0171 was displayed. Additionally, the contact stated that there were exhaust fumes entering the cabin of the vehicle. The contact had taken the vehicle to a local dealer, where it was diagnosed, and it was determined that there were cracks in the exhaust pipe and the catalytic converter pipe at Bank 2 and Bank 1 that needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to Technical Service Bulletin Number: PIP5681A. The contact had called the dealer to advise that there was a bulletin covering the cracks on the exhaust and the catalytic converter pipes, but was informed that the cracks on the pipes were on the wrong side and that the vehicle was not covered under warranty. The manufacturer was not informed of the failure. The failure mileage was 110,045.

Mileage: 110,045

The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at undisclosed speeds, there were abnormal sounds coming from the exhaust system. The contact stated that the vehicle sounded like a motorcycle. The contact stated that the check engine warning light was illuminated, and DTC: P0171 was displayed. Additionally, the contact stated that there were exhaust fumes entering the cabin of the vehicle. The contact had taken the vehicle to a local dealer, where it was diagnosed, and it was determined that there were cracks in the exhaust pipe and the catalytic converter pipe at Bank 2 and Bank 1 that needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to Technical Service Bulletin Number: PIP5681A. The contact had called the dealer to advise that there was a bulletin covering the cracks on the exhaust and the catalytic converter pipes, but was informed that the cracks on the pipes were on the wrong side and that the vehicle was not covered under warranty. The manufacturer was not informed of the failure. The failure mileage was 110,045.

Mileage: 110,045

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving at various speeds, the vehicle made an abnormally loud rattling sound. The contact stated that the failure also occurred upon starting the vehicle. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the mounting bracket on the front exhaust pipe had separated from the pipe and might develop a hole in the exhaust pipe. The dealer determined that the front exhaust pipe mounting bracket needed to be replaced. The vehicle was not repaired due to the cost. The dealer notified the manufacturer of the failure, but no assistance was provided. The failure mileage was approximately 85,000.

Mileage: 85,000

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 was referred to the NHTSA Hotline for assistance. The failure mileage was 85,600.

Mileage: 85,600

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving 45 MPH, the vehicle jerked, with an abnormal sound coming from underneath the vehicle. In addition, the contact stated the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken to Firestone, where the contact was provided DTC: P0420 (Catalytic converter was fractured and punctured, and a bracket was missing). The vehicle was not repaired. The contact then took the vehicle to the dealer where it was diagnosed and determined that the muffler was punctured and not the catalytic converter. The vehicle was not repaired. The contact then took the vehicle to a Valvoline Center to be diagnosed and DTC: P0420; was retrieved. The vehicle was not repaired. The contact stated that the failure persisted. The contact stated that the vehicle was vibrating abnormally while driven with an abnormal rattling sound coming from underneath the vehicle. Upon further investigation, the contact related the failure to Manufacturer's Recall Numbers: N212356540 and N222385510; however, the vehicle was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 102,000.

Mileage: 102,000

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving 25 MPH, the check engine warning light illuminated. A dealer was contacted. The vehicle was taken to the dealer where it was diagnosed and determined that the catalytic convertor had failed needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure, and the contact was informed that there were no recalls associated with the VIN. The approximate failure mileage was 58,000.

Mileage: 58,000

The contact owns a 2020 Chevrolet Traverse. The contact stated while starting the vehicle, there was a loud rattling sound coming from the rear end of the vehicle. The vehicle was taken to the dealer where it was diagnosed that the exhaust pipe had failed and needed to be replaced. The vehicle was not repaired. The vehicle was taken to an independent mechanic and was diagnosed that the exhaust bracket needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the mechanic where the mechanic confirmed that the vehicle was associated with N212356540 (Front Exhaust Pipe) and referred the contact to the dealer for further assistance. The vehicle was not repaired. The vehicle was taken back to the dealer but was not diagnosed or repaired. The manufacturer was made of the failure and a case was opened. The contact was referred to the NHTSA Hotline for assistance. The approximate failure mileage was 112,000.

Mileage: 112,000

The contact owns a 2020 Chevrolet Traverse. The contact stated that upon starting the vehicle, there was a loud vibration coming from the vehicle. There were no warning lights illuminated. The contact stated that the failure was related to Special Coverage Adjustment: N212356540 (Front Exhaust Pipe). The vehicle was taken to the local dealer, who diagnosed the failure as a fractured bracket on the muffler. The vehicle was not repaired. The manufacturer confirmed there were no open recalls on the VIN. The failure mileage was approximately 95,000.

Mileage: 95,000

The contact owns a 2020 Chevrolet Traverse. The contact stated that while the vehicle was parked, after starting the vehicle, the vehicle was making an abnormal sound. There was no warning light illuminated. The vehicle was driven to an independent mechanic, who researched the failure, and informed the contact of an undisclosed NHTSA recall; however, the VIN was not included. The contact was also informed that there was a hole in the exhaust system. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

The bracket on the front exhaust pipe broke off and created a hole in the exhaust pipe which caused the catalytic converter to become detached from the engine. A recall has already been issued for the previous model year of traverse but the issue is still occurring on this year vehicle.

The contact owns a 2020 Chevrolet Traverse. The contact noticed that an abnormal exhaust odor was entering inside the vehicle. Additionally, the contact stated that while starting the vehicle, the vehicle made an abnormal rattling sound that became louder over time. The vehicle was taken to the dealer, where it was diagnosed that the exhaust pipe mounting bracket was fractured, which damaged the exhaust pipe. The dealer determined that the exhaust pipe and the mounting bracket needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 58,500.

Mileage: 58,500

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving at various speeds, the vehicle made a loud abnormal sound. Additionally, the vehicle made an abnormal rattling sound. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the mounting bracket for the front driver’s side exhaust pipe had fractured, causing a hole in the front exhaust pipe. The dealer also determined that the mounting bracket for the passenger's side exhaust pipe had started to detach. The dealer informed the contact that the passenger's side exhaust pipe would be repaired under warranty; however, she would be charged a repair fee for the driver's side exhaust pipe. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 78,000.

Mileage: 78,000

Good morning, I have an issue with my 2020 Traverse that GM refuses to fix. I am getting warning lights from leaking exhaust. This is to due to weld defects. GM knows of the issue, they did recalls on the 2018, 2019, 2021 models but won't fix my 2020 even though it is the same issue. GM has a safety bulletin PIP5681 and PIP5681A for this issue. N222385510 is the number for the 2021 recall. The dealership has told me that this absolutely should be recalled but GM will not allow them to repair the 2020 under the same recall number. Thanks for your help!

The contact owns a 2020 Chevrolet Traverse. The contact stated while starting the vehicle, the check engine warning light illuminated with a loud sound coming from the exhaust. Additionally, there was an abnormal odd odor entering the cabin of the vehicle. The contact became aware that the front mounting bracket for the exhaust was fractured. The dealer was contacted and stated that the vehicle was not under recall. The vehicle was not diagnosed or repaired. The manufacturer was contacted and stated that the vehicle was not under recall. The failure mileage was 106,000.

Mileage: 106,000

The contact owns a 2020 Chevrolet Traverse. The contact stated that after starting the vehicle, there was a loud rumbling sound coming from the rear of the vehicle. The vehicle was taken to the local dealer who diagnosed that the front driver’s side exhaust pipe weld had fractured. The cause of the failure was not yet determined. The vehicle was not repaired. The local dealer was notified of the failure, but no assistance was provided. The manufacturer was not yet contacted. The VIN was not available. The failure mileage was 56,000.

Mileage: 56,000

The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the vehicle made rattling sounds. The check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the front exhaust pipe needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The contact related the failure to Special Coverage Program: N222385510 (Front Exhaust Pipe); however, the vehicle was not covered by the Special Coverage Program. The failure mileage was approximately 65,000.

Mileage: 65,000

The contact owns a 2020 Chevrolet Traverse. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal sound. Additionally, the contact stated that while parked, the vehicle made an abnormal sound. The vehicle was taken to the dealer, who informed the contact that there were fractured brackets that rubbed holes into the exhaust pipe and front muffler. The vehicle was not repaired. The contact related the failure to Technical Service Bulletin Number: N222385510 (Front Exhaust Pipe). The manufacturer was made aware of the failure. The failure mileage was approximately 52,000.

Mileage: 52,000

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving approximately 65-70 MPH, the check engine warning light illuminated. There was an abnormal gurgling and bubbling sound heard. The vehicle was taken to the local dealer where it was diagnosed that the exhaust pipe bracket had fractured and there was an exhaust leak. The vehicle was not repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 83,000.

Mileage: 83,000

The contact owns a 2020 Chevrolet Traverse. The contact stated while driving approximately 35 MPH, there was an abnormally loud sound coming from the vehicle. The contact then started to smell an exhaust odor inside the vehicle. There was no warning light illuminated. The vehicle was taken to a dealer to be diagnosed. The contact was notified of a cracked exhaust pipe. The vehicle was repaired. The contact was made aware of TSB: PIP5681A (Exhaust leak, Lean Codes, Rattle Noise, or Catalytic Converter Failures). The manufacture was notified of the failure. The manufacture informed the contact that VIN was not under recall. The failure mileage was approximately 49,643.

Mileage: 49,643

Front exhaust pipe breaks at bracket due to poor design and ineffective welding causing exhaust leak, exhaust rattle, multiple trouble codes. Technical service bulletin PIP5681 and Special Coverage Adjustment N212356540 already exist for known problem.

Exhaust manifold/down pipe to cat. The exhaust pipe broke just past where it hooks up to the engine block. The breakage caused exhaust fumes to enter the cabin while not moving and at idle. The vehicle has 80K plus miles so was out of warranty. I fixed the issue myself since I have the technical and mechanical know how. There never was any check engine or other warning lights. Nothing caused the issue other than normal everyday driving. I had to disconnect the exhaust from the block and after the cat. I welded the pipe back together and fixed the issue. I could have bought a replacement part for over $400, but that was not possible on our budget at this time.