Cadillac STS
Registered from 2005 to 2011.

About this model
The Cadillac STS is a mid-sized luxury 4-door sedan manufactured and marketed by General Motors from 2004 to 2011 for the 2005 to 2011 model years. A version of the STS was marketed in China as the SLS through 2013.
From the Wikipedia article Cadillac STS, licensed under CC BY-SA 4.0.
Crash test
| Rollover | ★★★★★ |
| Stability control | Standard |
| Forward collision warning | Optional |
| Lane departure warning | Optional |
Crash-tested by NHTSA, the American road safety agency.
Specification
| Year | Measured |
|---|---|
| 2011 | 1871 kg · 2950 mm wheelbase · 11.2 L/100km (EPA) · 13.1 L/100km city · 9.0 motorway · Sedan, 4-door |
| 2010 | 1919 kg · 2950 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 9.8 motorway · Sedan, 4-door |
| 2009 | 1948 kg · 2960 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 9.8 motorway · Sedan, 4-door |
| 2008 | 1948 kg · 2960 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 9.8 motorway · Sedan, 4-door |
| 2007 | 1948 kg · 2960 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 10.2 motorway · Sedan, 4-door |
| 2006 | 1948 kg · 2960 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 10.2 motorway · Sedan, 4-door |
| 2005 | 1750 kg · 2950 mm wheelbase · 13.1 L/100km (EPA) · 15.7 L/100km city · 10.2 motorway · Sedan, 4-door |
Regulator investigations
Opened by NHTSA's Office of Defects Investigation. An investigation is a question the regulator asked about a possible defect, not a fault it found — most end without a recall.
Failure of the rear differential
Preliminary evaluation, opened July 2007, closed December 2007.
What the maker told its dealers
Service bulletins are the manufacturer's own repair guidance to dealers, filed with NHTSA. A bulletin is not a defect finding; the count rises with how many things a maker writes down, not only with how many go wrong.
Cadillac filed 1235 bulletins about the 2011 STS.
- Equipment: 465
- Electrical system: 184
- Engine and engine cooling: 133
- Power train: 81
- Equipment adaptive/mobility: 70
- Engine: 56
- Visibility: 37
- Fuel system, gasoline: 36
- Wheels: 31
- Structure: 19
- Other: 123
- This preliminary information communicates information about how to determine if a wheel and tires size change is available. · April 2026
- This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect. · March 2026
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. · March 2026
- This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance. · January 2026
- This service bulletin provides information on Tire Sidewall Irregularities. · December 2025
- This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. · December 2025
- This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit… · November 2025
- The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal… · October 2025
1227 more.
Grouped by NHTSA's top-level system; a bulletin filed under a sub-heading counts toward its system.