2004 Chevrolet Impala vs 2004 Pontiac Bonneville
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 Impala | 2004 Pontiac Bonneville |
|---|---|---|
| NHTSA complaints | 1,072 | 28 |
| Recall campaigns | 4 | 0 |
| Service bulletins (TSBs) | 495 | 444 |
| Investigations | 0 | 0 |
| Crash reports | 44 | 0 |
| Fire reports | 21 | 1 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 20–22 | 18–21 |
| Median reported incident mileage | 70,000 mi | 42,000 mi |
Reported problems side by side
| Component | Chevrolet Impala | Pontiac Bonneville |
|---|---|---|
| Electrical System | 681 | 11 |
| Exterior Lighting | 104 | 0 |
| Engine | 71 | 0 |
| Steering | 62 | 8 |
| Service Brakes, Hydraulic | 51 | 2 |
| Power Train | 47 | 3 |
| Vehicle Speed Control | 41 | 0 |
| Engine and Engine Cooling | 36 | 2 |
Symptoms owners describe
| Won’t start | 73 | 0 |
| Stalling | 50 | 0 |
| Overheating | 29 | 0 |
| Vibration / shaking | 19 | 0 |
| Check engine light | 14 | 0 |
| Shifting problems | 14 | 0 |
| Rust / corrosion | 14 | 0 |
| Clunking / rattling | 12 | 0 |
2004 Chevrolet Impala
2004 Pontiac Bonneville
Compare all Chevrolet Impala vs Pontiac Bonneville 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.