2005 Cadillac STS vs 2006 Cadillac STS
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 | 2005 Cadillac STS | 2006 Cadillac STS |
|---|---|---|
| NHTSA complaints | 101 | 139 |
| Recall campaigns | 3 | 4 |
| Service bulletins (TSBs) | 626 | 755 |
| Investigations | 1 | 1 |
| Crash reports | 13 | 16 |
| Fire reports | 4 | 6 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 17–18 | 17–19 |
| Median reported incident mileage | 60,000 mi | 73,000 mi |
Reported problems side by side
| Component | Cadillac STS | Cadillac STS |
|---|---|---|
| Air Bags | 11 | 57 |
| Electrical System | 23 | 21 |
| Engine | 12 | 20 |
| Power Train | 18 | 13 |
| Fuel/propulsion System | 5 | 18 |
| Engine and Engine Cooling | 7 | 8 |
| Seats | 6 | 6 |
| Vehicle Speed Control | 6 | 6 |
Symptoms owners describe
| Stalling | 5 | 17 |
| Clunking / rattling | 5 | 0 |
| Airbag warning light | 0 | 17 |
| Check engine light | 0 | 7 |
| Loss of power | 0 | 5 |
| Hesitation / surging | 0 | 5 |
2005 Cadillac STS
2006 Cadillac STS
Compare all Cadillac STS vs Cadillac STS 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.