2004 GMC Sierra 2500 vs 2006 GMC Sierra 2500
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 | 2004 GMC Sierra 2500 | 2006 GMC Sierra 2500 |
|---|---|---|
| NHTSA complaints | 143 | 66 |
| Recall campaigns | 1 | 1 |
| Service bulletins (TSBs) | 310 | 389 |
| Investigations | 0 | 0 |
| Crash reports | 4 | 4 |
| Fire reports | 4 | 3 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | — | — |
| Median reported incident mileage | 60,000 mi | 43,500 mi |
Reported problems side by side
| Component | GMC Sierra 2500 | GMC Sierra 2500 |
|---|---|---|
| Service Brakes | 33 | 24 |
| Electrical System | 48 | 4 |
| Service Brakes, Hydraulic | 22 | 6 |
| Power Train | 9 | 12 |
| Steering | 7 | 10 |
| Engine and Engine Cooling | 9 | 5 |
| Engine | 9 | 0 |
| Tires | 3 | 6 |
Symptoms owners describe
| Rust / corrosion | 38 | 13 |
| Brake problems | 15 | 13 |
| Stalling | 5 | 5 |
2004 GMC Sierra 2500
2006 GMC Sierra 2500
Compare all GMC Sierra 2500 vs GMC Sierra 2500 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.