Cadillac STS problems by year
342 owner complaints filed with NHTSA across 14 Cadillac STS model years. Last verified Sep 21, 2026. Complaint totals are lifetime counts — years that have been on the road longer accumulate more reports.
| Year | Complaints | Recalls | Most reported problem | |
|---|---|---|---|---|
| 2011 | 7 | 0 | — | |
| 2010 | 4 | 0 | — | |
| 2009 | 15 | 0 | — | |
| 2008 | 50 | 1 | Air Bags | |
| 2007 | 52 | 2 | Air Bags | |
| 2006 Most complained | 139 | 4 | Air Bags | |
| 2005 Most complained | 101 | 3 | Electrical System | |
| 2004 | 7 | 0 | — | |
| 2003 | 8 | 0 | — | |
| 2002 | 7 | 0 | — | |
| 2001 | 12 | 0 | — | |
| 2000 | 12 | 0 | — | |
| 1999 | 13 | 0 | — | |
| 1998 | 3 | 0 | — |
How to read this. Complaints are unverified reports owners file with NHTSA’s Office of Defects Investigation, counted once per case number. Raw totals are not adjusted for sales volume, and recent model years have had less time on the road. “Most complained” flags years well above the model’s median; treat it as a signal for deeper research, not a verdict. This page is not affiliated with Cadillac.