2018 Chevrolet Traverse engine and engine cooling problems
16 owner complaints filed with NHTSA name the engine and engine cooling on the 2018 Chevrolet Traverse — 4% of all complaints for this model year.
What owners report
“The contact owns a 2018 Chevrolet Traverse. The contact stated that while driving at 25 MPH, there were exhaust fumes entering the cabin of the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, and the mechanic was notified of a failure with…”
filed Feb 2, 2026
“The contact owns a 2018 Chevrolet Traverse. The contact stated that while operating the vehicle, the check engine warning light remained illuminated. The vehicle was taken to an independent mechanic who diagnosed the vehicle with catalytic converter failure. The contact was informed that the…”
filed Sep 26, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Traverse years
| Year | Reports | Share |
|---|---|---|
| 2025 Traverse | 1 | 1% |
| 2024 Traverse | 2 | 2% |
| 2023 Traverse | 3 | 4% |
| 2022 Traverse | 1 | 1% |
| 2021 Traverse | 7 | 8% |
| 2020 Traverse | 23 | 11% |
| 2019 Traverse | 4 | 1% |
| 2015 Traverse | 1 | 0% |
| 2014 Traverse | 2 | 0% |
| 2013 Traverse | 1 | 1% |
| 2012 Traverse | 2 | 1% |
| 2011 Traverse | 9 | 1% |
Other reported problem areas on the 2018 Chevrolet Traverse
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.