2014 GMC Terrain electrical system problems
31 owner complaints filed with NHTSA name the electrical system on the 2014 GMC Terrain — 10% of all complaints for this model year.
What owners report
“ABS Brake problem and have tried to get it repaired for over 3 months and cannot seem to be able to get the part and call GM with no help. Can not tell me when or where to buy the part. Nobody seems to be able to get a new part and no help from GM. If there is this many problems that there is no…”
filed Aug 21, 2025
“Tensioner issues keeps breaking the timing chain. . Replaced twice at own cost. Fuel pump/ loss of power while driving. Back up camera doesn't work sometimes. Screen goes black. If key is left in the ignition it starts itself. If you try to use a car charger for a phone the AC shuts off and a…”
filed Jul 1, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2026 Terrain | 1 | 4% |
| 2024 Terrain | 6 | 13% |
| 2023 Terrain | 7 | 19% |
| 2022 Terrain | 5 | 10% |
| 2021 Terrain | 7 | 21% |
| 2020 Terrain | 27 | 15% |
| 2019 Terrain | 37 | 21% |
| 2018 Terrain | 35 | 16% |
| 2017 Terrain | 9 | 7% |
| 2016 Terrain | 9 | 6% |
| 2015 Terrain | 31 | 10% |
| 2013 Terrain | 22 | 6% |
Other reported problem areas on the 2014 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.