2020 Chevrolet Traverse Engine cooling Problems
- Complaints
- 27about this part
- Share
- 12%of 234 total for the year
- Median mileage
- 83,850miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 27 complaints about the engine cooling of the 2020 Chevrolet Traverse, 12% of the 234 complaints for this model year. Where a mileage was given, the median is 83,850 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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. …”
NHTSA complaint #11482838, filed 2022-09“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. …”
NHTSA complaint #11695089, filed 2025-10, 110,045 miles“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. …”
NHTSA complaint #11708290, filed 2026-01, 90,100 miles“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. …”
NHTSA complaint #11757347, filed 2026-08, 50,000 miles“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.”
NHTSA complaint #11652396, filed 2025-04, 58,000 milesRelated service bulletins
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10250503Feb 7, 2024This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 1% |
| 2024 | 2 | 1% |
| 2023 | 3 | 3% |
| 2022 | 1 | 1% |
| 2021 | 7 | 8% |
| 2020 | 27 | 12% |
| 2019 | 4 | 1% |
| 2018 | 16 | 3% |
| 2015 | 1 | 0% |
| 2014 | 2 | 0% |
| 2013 | 1 | 1% |
| 2012 | 2 | 1% |
| 2011 | 9 | 1% |
| 2010 | 8 | 1% |
| 2009 | 12 | 3% |
Other parts of the 2020 Chevrolet Traverse
70 complaintsOther or unknown
57 complaintsTransmission and drivetrain
39 complaintsElectrical system
28 complaintsFuel system
19 complaintsBrakes
10 complaintsSeat belts
9 complaintsSteering
7 complaintsAir bags
6 complaintsSuspension
5 complaintsBack-over prevention (rear camera)
4 complaintsSeats
4 complaints
← All problems reported for the 2020 Chevrolet Traverse
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology