2007 Chevrolet HHR vs 2007 Chevrolet Trailblazer
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 | 2007 Chevrolet HHR | 2007 Chevrolet Trailblazer |
|---|---|---|
| NHTSA complaints | 726 | 732 |
| Recall campaigns | 4 | 5 |
| Service bulletins (TSBs) | 842 | 845 |
| Investigations | 0 | 4 |
| Crash reports | 42 | 19 |
| Fire reports | 4 | 56 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 22–23 | 14–17 |
| Median reported mileage | 75,000 mi | 71,236 mi |
Reported problems side by side
| Component | Chevrolet HHR | Chevrolet Trailblazer |
|---|---|---|
| Steering | 424 | 23 |
| Electrical System | 111 | 200 |
| Fuel System, Gasoline | 8 | 215 |
| Exterior Lighting | 6 | 151 |
| Fuel/propulsion System | 43 | 58 |
| Air Bags | 48 | 27 |
| Visibility | 5 | 64 |
| Power Train | 40 | 15 |
Symptoms owners describe
| Steering problems | 66 | 0 |
| Loss of power | 46 | 6 |
| Stalling | 34 | 39 |
| Rust / corrosion | 31 | 14 |
| Vibration / shaking | 26 | 0 |
| Check engine light | 16 | 45 |
| Clunking / rattling | 12 | 0 |
| Airbag warning light | 7 | 5 |
2007 Chevrolet HHR
2007 Chevrolet Trailblazer
Compare all Chevrolet HHR 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.