2006 Chevrolet HHR vs 2006 Chevrolet Trailblazer Ext
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 | 2006 Chevrolet HHR | 2006 Chevrolet Trailblazer Ext |
|---|---|---|
| NHTSA complaints | 1,006 | 189 |
| Recall campaigns | 5 | 6 |
| Service bulletins (TSBs) | 758 | 169 |
| Investigations | 0 | 4 |
| Crash reports | 47 | 2 |
| Fire reports | 8 | 2 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 22–23 | 15–16 |
| Median reported incident mileage | 71,000 mi | 58,000 mi |
Reported problems side by side
| Component | Chevrolet HHR | Chevrolet Trailblazer Ext |
|---|---|---|
| Steering | 458 | 2 |
| Electrical System | 222 | 41 |
| Structure | 119 | 9 |
| Fuel System, Gasoline | 6 | 102 |
| Power Train | 82 | 6 |
| Latches/locks/linkages | 70 | 2 |
| Air Bags | 63 | 4 |
| Fuel/propulsion System | 44 | 5 |
Symptoms owners describe
| Steering problems | 88 | 0 |
| Stalling | 70 | 18 |
| Loss of power | 45 | 0 |
| Vibration / shaking | 37 | 0 |
| Rust / corrosion | 32 | 0 |
| Check engine light | 22 | 18 |
| Clunking / rattling | 12 | 0 |
| Water leaks | 11 | 0 |
2006 Chevrolet HHR
2006 Chevrolet Trailblazer Ext
Compare all Chevrolet HHR vs Chevrolet Trailblazer Ext 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.