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Sigma · Sedan

2009 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 2009 Cadillac STS.

Owner complaints

What 15 owners reported

Air bags4
Steering3
Engine1
Electrical system1

Source: NHTSA

Specifications

2009 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
Drivetrain
RWD, AWD
Fuel
Gasoline
Body style
Sedan
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FAQ

Frequently asked questions

What are the common problems with the 2009 Cadillac STS?

Owners have filed 15 complaints about the 2009 Cadillac STS with NHTSA, most often about the air bags. No recall campaigns are on file for 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 2009 Cadillac STS reliable?

Reliability depends heavily on the specific configuration and how the car was maintained. 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 2009 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 2009 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.