2020 GMC Sierra 3500 problems by component
51 owner complaints filed with NHTSA for the 2020 GMC Sierra 3500, grouped by the component owners reported. Each component links to a detailed breakdown with mileage, severity and owner reports.
| Component | Complaints | Share | Median mileage |
|---|---|---|---|
| Power Train → | 19 | 37% | — |
| Electrical System | 9 | 18% | — |
| Service Brakes | 7 | 14% | — |
| Engine | 6 | 12% | — |
| Fuel/propulsion System | 5 | 10% | — |
| Structure | 5 | 10% | — |
| Tires | 4 | 8% | — |
| Air Bags | 1 | 2% | — |
| Engine and Engine Cooling | 1 | 2% | — |
| Exterior Lighting | 1 | 2% | — |
| Forward Collision Avoidance | 1 | 2% | — |
| Fuel System, Diesel | 1 | 2% | — |
| Lane Departure | 1 | 2% | — |
| Latches/locks/linkages | 1 | 2% | — |
| Steering | 1 | 2% | — |
| Visibility | 1 | 2% | — |
| Visibility/wiper | 1 | 2% | — |
| Wheels | 1 | 2% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.