2006 Cadillac STS
Common problems & what to know before you buy
Before you message the seller, know the documented failure patterns, repair cost exposure, and risk level for the 2006 Cadillac STS.
Recalls on the 2006 Cadillac STS
Fuel system: fuel pump
In the affected vehicles, the electrical terminals of the fuel pump module may overheat resulting in the melting of the flange material.
Vehicle speed control
6L V6 ENGINE, THE TORQUE MONITORING FUNCTIONS OF THE ELECTRONIC THROTTLE CONTROL (ETC) ARE NOT ENABLED.
Power train: seal
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
1 more in the guide, with whether each one was done on the car you're looking at.
Source: NHTSA
What 141 owners reported
Source: NHTSA
2006 Cadillac STS at a glance
- Trims
- STS-VV6V8
- Engine
- 4.4L 8-Cylinder Supercharged, 3.6L 6-Cylinder, 4.6L 8-Cylinder
- Transmission
- Automatic 6-spd, Automatic 5-spd
- Drivetrain
- RWD, AWD
- Fuel
- Gasoline
- Body style
- Sedan
Other Cadillac STS years
Free Car Finder
Still deciding on the 2006 Cadillac STS?
Answer a few quick questions and see your top 3 used cars, with the years to shop.
Frequently asked questions
What are the common problems with the 2006 Cadillac STS?
Owners have filed 141 complaints about the 2006 Cadillac STS with NHTSA, most often about the air bags. There are 4 recall campaigns covering this model year. Squeezed's free research-backed buyer guide cross-references these against documented failure patterns and mileage-stage risks, sorted by severity, in about a minute.
Is the 2006 Cadillac STS reliable?
Reliability depends heavily on the specific configuration and how the car was maintained. Start with the 4 open recall campaigns on this model year and confirm the work was completed. Generate a Squeezed buyer guide for this exact vehicle to see a reliability snapshot, repair-cost exposure, and the questions to ask the seller before you buy.
Should I still get a pre-purchase inspection on a 2006 Cadillac STS?
Always. A Squeezed buyer guide is the triage step before the inspection: it shows you the documented failure patterns and what to check so you can decide which 2006 Cadillac STS listings are even worth a mechanic's time, then walk into the PPI knowing exactly what to look for.
Squeezed is a buyer guide based on public data and industry patterns, not a mechanical inspection. Always get a professional pre-purchase inspection before you buy.