2003 Chevrolet Blazer vs 2003 Chevrolet Trailblazer
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2003 Chevrolet Blazer | 2003 Chevrolet Trailblazer |
|---|---|---|
| NHTSA complaints | 77 | 901 |
| Recall campaigns | 1 | 8 |
| Service bulletins (TSBs) | 407 | 673 |
| Investigations | 0 | 8 |
| Crash reports | 14 | 68 |
| Fire reports | 0 | 14 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 15–17 | 15–16 |
| Median reported incident mileage | 50,000 mi | 76,000 mi |
Reported problems side by side
| Component | Chevrolet Blazer | Chevrolet Trailblazer |
|---|---|---|
| Electrical System | 9 | 285 |
| Fuel System, Gasoline | 6 | 114 |
| Power Train | 12 | 103 |
| Exterior Lighting | 4 | 77 |
| Air Bags | 14 | 57 |
| Engine and Engine Cooling | 6 | 65 |
| Visibility | 4 | 64 |
| Fuel/propulsion System | 2 | 55 |
Symptoms owners describe
| Stalling | 7 | 32 |
| Hesitation / surging | 5 | 11 |
| Check engine light | 0 | 34 |
| Rust / corrosion | 0 | 31 |
| Loss of power | 0 | 17 |
| Electrical failures | 0 | 11 |
| Vibration / shaking | 0 | 11 |
| Clunking / rattling | 0 | 9 |
2003 Chevrolet Blazer
2003 Chevrolet Trailblazer
Compare all Chevrolet Blazer vs Chevrolet Trailblazer 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.