Cadillac STS vs Toyota Prius
Owner complaints, worst years and recall history side by side, from official NHTSA data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
Cadillac STS
- Total complaints
- 342
- Avg per model year
- 31
- Recall campaigns (all years)
- 6
- Most complained year
- 2006 (139)
Top problems: Air Bags, Electrical System, Engine
Toyota Prius
- Total complaints
- 12,413
- Avg per model year
- 462
- Recall campaigns (all years)
- 35
- Most complained year
- 2010 (2,820)
Top problems: Exterior Lighting, Service Brakes, Service Brakes, Hydraulic
Complaints by model year
| Year | Cadillac STS | Toyota Prius | ||
|---|---|---|---|---|
| 2011 | 7 | 516 | ||
| 2010 | 4 | 2,820 | ||
| 2009 | 15 | 502 | ||
| 2008 | 50 | 1,497 | ||
| 2007 | 52 | 2,003 | ||
| 2006 | 139 | 1,439 | ||
| 2005 | 101 | 1,051 | ||
| 2004 | 7 | 610 | ||
| 2003 | 8 | 99 | ||
| 2002 | 7 | 167 | ||
| 2001 | 12 | 165 | ||
| 2000 | 12 | 4 |
Method. Complaints are unique NHTSA reports per model year. A model that sold more units will naturally accumulate more complaints — compare the shape across years, not just the raw totals, and read the year pages for what actually fails.