2003 GMC Sierra problems by component
206 owner complaints filed with NHTSA for the 2003 GMC Sierra, 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 → | 45 | 22% | 98,750 mi |
| Service Brakes, Hydraulic → | 38 | 18% | 41,738 mi |
| Electrical System → | 31 | 15% | 62,250 mi |
| Power Train → | 29 | 14% | 4,850 mi |
| Steering → | 27 | 13% | 22,000 mi |
| Vehicle Speed Control → | 12 | 6% | — |
| Engine and Engine Cooling | 9 | 4% | — |
| Structure | 6 | 3% | — |
| Suspension | 6 | 3% | — |
| Air Bags | 5 | 2% | — |
| Tires | 5 | 2% | — |
| Fuel System, Gasoline | 4 | 2% | — |
| Engine | 3 | 1% | — |
| Equipment | 3 | 1% | — |
| Seats | 3 | 1% | — |
| Fuel System, Diesel | 2 | 1% | — |
| Seat Belts | 2 | 1% | — |
| Visibility | 2 | 1% | — |
| Exterior Lighting | 1 | 0% | — |
| Fuel/propulsion System | 1 | 0% | — |
| Fuel System, Other | 1 | 0% | — |
| Service Brakes, Electric | 1 | 0% | — |
| Wheels | 1 | 0% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.