2019 GMC Terrain power train problems
50 owner complaints filed with NHTSA name the power train on the 2019 GMC Terrain — 28% of all complaints for this model year.
What owners report
“No engine lights are on. When at stops it starts chugging and when I accelerate sometimes it does not go like it should. It idles high and feels like it is slipping. I have almost been hit in the rear several times when this happens. One lady did rear end me but the damage was so little that I did…”
filed Jul 3, 2026
“The turbo went completely out at around 105k miles while I was driving to work. I had to coast into a repair shop because it was smoking and wouldn’t go over 20mph and then have it towed to the place that repaired it. Since then, the transmission is having trouble shifting gears. The car struggles…”
filed Jun 10, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Start/stop accumulator endcap may have missing boltsCampaign 20V668000 · Oct 29, 2020
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% |
| 2018 Terrain | 41 | 19% |
| 2017 Terrain | 23 | 17% |
| 2016 Terrain | 11 | 7% |
| 2015 Terrain | 21 | 7% |
| 2014 Terrain | 33 | 11% |
| 2013 Terrain | 44 | 12% |
Other reported problem areas on the 2019 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.