2004 Chevrolet Trailblazer vs 2004 Isuzu Ascender
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 Chevrolet Trailblazer | 2004 Isuzu Ascender |
|---|---|---|
| NHTSA complaints | 1,081 | 64 |
| Recall campaigns | 2 | 1 |
| Service bulletins (TSBs) | 701 | 175 |
| Investigations | 4 | 2 |
| Crash reports | 56 | 0 |
| Fire reports | 31 | 2 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 16 | 14–16 |
| Median reported incident mileage | 68,720 mi | 80,000 mi |
Reported problems side by side
| Component | Chevrolet Trailblazer | Isuzu Ascender |
|---|---|---|
| Electrical System | 627 | 34 |
| Exterior Lighting | 101 | 6 |
| Fuel System, Gasoline | 93 | 8 |
| Power Train | 62 | 2 |
| Fuel/propulsion System | 43 | 7 |
| Air Bags | 42 | 1 |
| Engine and Engine Cooling | 39 | 2 |
| Vehicle Speed Control | 38 | 1 |
Symptoms owners describe
| Stalling | 48 | 0 |
| Check engine light | 48 | 7 |
| Rust / corrosion | 29 | 0 |
| Loss of power | 11 | 0 |
| Vibration / shaking | 11 | 0 |
| Clunking / rattling | 8 | 0 |
| Hesitation / surging | 7 | 0 |
| Airbag warning light | 7 | 0 |
2004 Chevrolet Trailblazer
2004 Isuzu Ascender
Compare all Chevrolet Trailblazer vs Isuzu Ascender 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.