2023 GMC Terrain engine problems
13 owner complaints filed with NHTSA name the engine on the 2023 GMC Terrain — 36% of all complaints for this model year.
What owners report
“adaptive cruise disengaging alert on dash- no cars or weather conditions to induce this. loss of power and bucking on highway( near accident caused) catostostrophic sudden loss of power engine/transmission failure while mechanic driving resulting in car towed back to dealer. loss of power multiple…”
filed Aug 5, 2026
“I have had 2 different instances where my vehicle stops in the middle of a busy intersection or traffic and have no warning what so ever. Vehicle just shuts off and I am not able to turn back on to move out of the way. First time I got it repaired it was related to the fuel pump and now I am…”
filed Jun 2, 2026
“The contact owns a 2023 GMC Terrain. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and the engine stalled. The contact attempted to drive the vehicle to the shoulder of the road, the engine seized. The contact stated while attempting to start the vehicle, the…”
filed May 29, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2026 Terrain | 1 | 4% |
| 2024 Terrain | 11 | 23% |
| 2022 Terrain | 10 | 21% |
| 2021 Terrain | 8 | 24% |
| 2020 Terrain | 55 | 30% |
| 2019 Terrain | 63 | 36% |
| 2018 Terrain | 51 | 24% |
| 2017 Terrain | 77 | 58% |
| 2016 Terrain | 45 | 30% |
| 2015 Terrain | 80 | 27% |
| 2014 Terrain | 123 | 42% |
| 2013 Terrain | 197 | 54% |
Other reported problem areas on the 2023 GMC Terrain
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.