2012 GMC Terrain fuel/propulsion system problems
28 owner complaints filed with NHTSA name the fuel/propulsion system on the 2012 GMC Terrain — 8% of all complaints for this model year.
What owners report
“My car has started stalling and dying when i slow down, take off or when idling. No power when accelerated, and the smell of exhaust comes into my car. I was making a turn from a red light and my car spit, sputtered, and died right in the middle of the busy intersection. I was almost hit from the…”
filed Jun 2, 2026
“Evap emission control leak detected As the check engine light comes on, when hooking a computer up to the car for a scan it pulls a code stating there is an evap leak. The gas cap has been replaced along with a sensor and no gas is seen leaking but you can smell gas vapors when the car is running…”
filed Sep 4, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2024 Terrain | 10 | 21% |
| 2023 Terrain | 14 | 39% |
| 2022 Terrain | 20 | 42% |
| 2021 Terrain | 2 | 6% |
| 2020 Terrain | 22 | 12% |
| 2019 Terrain | 4 | 2% |
| 2018 Terrain | 12 | 6% |
| 2017 Terrain | 4 | 3% |
| 2016 Terrain | 3 | 2% |
| 2015 Terrain | 15 | 5% |
| 2014 Terrain | 15 | 5% |
| 2013 Terrain | 21 | 6% |
Other reported problem areas on the 2012 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.