2021 GMC Terrain vs 2023 GMC Terrain
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Sep 22, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2021 GMC Terrain | 2023 GMC Terrain |
|---|---|---|
| NHTSA complaints | 35 | 38 |
| Recall campaigns | 2 | 2 |
| Service bulletins (TSBs) | 695 | 456 |
| Investigations | 0 | 0 |
| Crash reports | 4 | 2 |
| Fire reports | 0 | 1 |
| NCAP overall rating | 5/5 | 5/5 |
| EPA MPG (combined) | 26–27 | 26 |
| Median reported incident mileage | — | — |
Reported problems side by side
| Component | GMC Terrain | GMC Terrain |
|---|---|---|
| Engine | 9 | 14 |
| Fuel/propulsion System | 2 | 14 |
| Power Train | 8 | 7 |
| Electrical System | 7 | 7 |
| Service Brakes | 8 | 0 |
| Fuel System, Gasoline | 2 | 6 |
| Lane Departure | 2 | 4 |
| Forward Collision Avoidance | 3 | 2 |
Symptoms owners describe
| Vibration / shaking | 7 | 0 |
| Check engine light | 5 | 11 |
| Stalling | 0 | 12 |
| Loss of power | 0 | 8 |
2021 GMC Terrain
2023 GMC Terrain
Compare all GMC Terrain vs GMC Terrain years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.