2015 Chevrolet Impala vs 2015 Mercedes-Benz S550
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 | 2015 Chevrolet Impala | 2015 Mercedes-Benz S550 |
|---|---|---|
| NHTSA complaints | 298 | 41 |
| Recall campaigns | 3 | 5 |
| Service bulletins (TSBs) | 1,657 | 131 |
| Investigations | 0 | 1 |
| Crash reports | 10 | 4 |
| Fire reports | 11 | 3 |
| NCAP overall rating | 5/5 | — |
| EPA MPG (combined) | 21–25 | 20 |
| Median reported incident mileage | 60,000 mi | — |
Reported problems side by side
| Component | Chevrolet Impala | Mercedes-Benz S550 |
|---|---|---|
| Electrical System | 95 | 5 |
| Steering | 44 | 4 |
| Lane Departure | 42 | 0 |
| Air Bags | 29 | 4 |
| Service Brakes | 23 | 2 |
| Exterior Lighting | 22 | 0 |
| Engine | 19 | 3 |
| Structure | 16 | 5 |
Symptoms owners describe
| Rust / corrosion | 21 | 0 |
| Check engine light | 12 | 0 |
| Steering problems | 12 | 0 |
| Stalling | 11 | 0 |
| Loss of power | 11 | 0 |
| Airbag warning light | 9 | 0 |
| Electrical failures | 8 | 0 |
| Vibration / shaking | 7 | 0 |
2015 Chevrolet Impala
2015 Mercedes-Benz S550
Compare all Chevrolet Impala vs Mercedes-Benz S550 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.