2020 GMC Terrain problems by component
186 owner complaints filed with NHTSA for the 2020 GMC Terrain, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Service Brakes → | 61 | 33% | — |
| Engine → | 55 | 30% | — |
| Electrical System → | 27 | 15% | — |
| Power Train → | 26 | 14% | — |
| Fuel/propulsion System → | 22 | 12% | — |
| Vehicle Speed Control → | 11 | 6% | — |
| Forward Collision Avoidance | 8 | 4% | — |
| Back Over Prevention | 6 | 3% | — |
| Fuel System, Gasoline | 6 | 3% | — |
| Service Brakes, Hydraulic | 6 | 3% | — |
| Structure | 5 | 3% | — |
| Air Bags | 3 | 2% | — |
| Engine and Engine Cooling | 3 | 2% | — |
| Steering | 3 | 2% | — |
| Electronic Stability Control (esc) | 2 | 1% | — |
| Lane Departure | 2 | 1% | — |
| Suspension | 2 | 1% | — |
| Visibility | 2 | 1% | — |
| Visibility/wiper | 2 | 1% | — |
| Wheels | 2 | 1% | — |
| Carry Handle, Shell, Base | 1 | 1% | — |
| Exterior Lighting | 1 | 1% | — |
| Seat Belts | 1 | 1% | — |
| Seats | 1 | 1% | — |
| Traction Control System | 1 | 1% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.