1999 GMC Sierra 1500 problems by component
158 owner complaints filed with NHTSA for the 1999 GMC Sierra 1500, 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, Hydraulic → | 70 | 44% | 94,542 mi |
| Service Brakes → | 30 | 19% | 152,446 mi |
| Seats → | 10 | 6% | 55,675 mi |
| Structure | 9 | 6% | — |
| Electrical System | 8 | 5% | — |
| Suspension | 7 | 4% | — |
| Engine and Engine Cooling | 6 | 4% | — |
| Fuel System, Gasoline | 5 | 3% | — |
| Steering | 4 | 3% | — |
| Parking Brake | 3 | 2% | — |
| Seat Belts | 3 | 2% | — |
| Service Brakes, Air | 3 | 2% | — |
| Tires | 3 | 2% | — |
| Air Bags | 2 | 1% | — |
| Fuel/propulsion System | 2 | 1% | — |
| Power Train | 2 | 1% | — |
| Engine | 1 | 1% | — |
| Equipment Adaptive/mobility | 1 | 1% | — |
| Vehicle Speed Control | 1 | 1% | — |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.