2015 GMC Terrain power train problems
21 owner complaints filed with NHTSA name the power train on the 2015 GMC Terrain — 7% of all complaints for this model year.
What owners report
“There have been problems with the 2015 GMC Terrains Timing chain. The timing chain will break when the vehicle is being operated which causes the driver to lose complete control of the SUV, additionally, the engine will be destroyed. The bigger issue is the loss of control when you are driving -…”
filed Jan 3, 2024
“The blower fan for heat In my vehicle was replaced in October 2022, recently the Defroster will not engage and it is vital to winter driving. The mechanism that switches between which vent to blow out air was replaced and the Defroster will still not engage, rather it comes out of the heat and face…”
filed Dec 31, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2026 Terrain | 4 | 17% |
| 2024 Terrain | 20 | 42% |
| 2023 Terrain | 6 | 17% |
| 2022 Terrain | 7 | 15% |
| 2021 Terrain | 8 | 24% |
| 2020 Terrain | 26 | 14% |
| 2019 Terrain | 50 | 28% |
| 2018 Terrain | 41 | 19% |
| 2017 Terrain | 23 | 17% |
| 2016 Terrain | 11 | 7% |
| 2014 Terrain | 33 | 11% |
| 2013 Terrain | 44 | 12% |
Other reported problem areas on the 2015 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.