1999 GMC Sierra vs 2001 GMC Sierra
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 1999 GMC Sierra | 2001 GMC Sierra |
|---|---|---|
| NHTSA complaints | 600 | 264 |
| Recall campaigns | 4 | 4 |
| Service bulletins (TSBs) | 229 | 471 |
| Investigations | 8 | 8 |
| Crash reports | 51 | 30 |
| Fire reports | 2 | 2 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | — | — |
| Median reported incident mileage | 62,000 mi | 62,000 mi |
Reported problems side by side
| Component | GMC Sierra | GMC Sierra |
|---|---|---|
| Service Brakes, Hydraulic | 280 | 100 |
| Service Brakes | 25 | 31 |
| Suspension | 39 | 15 |
| Power Train | 37 | 14 |
| Vehicle Speed Control | 39 | 11 |
| Tires | 31 | 18 |
| Structure | 30 | 13 |
| Engine and Engine Cooling | 17 | 22 |
Symptoms owners describe
| Rust / corrosion | 62 | 50 |
| Brake problems | 42 | 22 |
| Vibration / shaking | 33 | 12 |
| Clunking / rattling | 11 | 5 |
| Stalling | 8 | 11 |
| Hesitation / surging | 8 | 0 |
1999 GMC Sierra
2001 GMC Sierra
Compare all GMC Sierra vs GMC Sierra 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.