2011 Cadillac STS Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- Electrical system issues are the most frequent complaint, manifesting as intermittent failures in various components.
- Service brake problems, including loss of assist and hard pedal feel, pose a significant safety concern.
- While no recalls were issued, a high TSB count (811) suggests numerous known issues requiring attention.
- The 3.6L V6 engine and S6 automatic transmission provide adequate power but are part of a complex system prone to electrical gremlins.
2011 Cadillac STS
Critical Failure Risk
Intermittent electrical issues are a recurring theme, affecting instrument panels, sensors, power windows, audio systems, and lighting. These can stem from module failures, wiring harness problems, or poor grounding.
Early detection can help you avoid a $200-$1,500 repair.
Safety & Bulletins
Owner Complaints
Performance & Efficiency
Reliability
Practicality
The score is mainly limited by high fuel consumption.
Who This Car Is For
Best for
Discerning buyers willing to invest in thorough pre-purchase inspections.
+2 more buyer-fit notes in the full report
Avoid if
Drivers seeking a completely dependable, low-maintenance vehicle.
+2 more buyer-fit warnings in the full report
2011 Cadillac STS Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2011 Cadillac STS.
Vehicle Specs
- Fuel Type
- Regular
- Transmission
- Automatic (S6)
- Drivetrain
- Rear-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 21
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Most Common Issues
1. Electrical System
Most reportedUsage: 3 reports
2. Braking System
Usage: 2 reports
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection
Est. shop cost: $100 - $200
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FAQ
Is the 2011 Cadillac STS reliable?
The CarFocal Reliability Score for the 2011 Cadillac STS is 9.2/10. Reliability score is 9.2/10. NHTSA recalls: 0. Owner complaints: 9.
How practical is the 2011 Cadillac STS for daily use?
Practicality score is 5.0/10. The score is mainly limited by high fuel consumption. EPA combined economy is 21 MPG.
What is the overall score for the 2011 Cadillac STS?
The CarFocal Overall Score for the 2011 Cadillac STS is 6.7/10. Overall score is 6.7/10 (Good). Confidence 55%. Maintenance 7.6/10. Practicality 5.0/10.
What does it cost to own and maintain a 2011 Cadillac STS?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection at 7,500 miles. Estimated first-year maintenance: $800 - $1,500. Repair prediction highlight: Electrical System Components (typical at 80,000 miles, estimated cost Min: $200 • Max: $1,500+).
What engine is in the 2011 Cadillac STS?
Engine specs list 6 • 3.6.
What transmission does the 2011 Cadillac STS use?
According to CarFocal's specs for the 2011 Cadillac STS, transmission is Automatic (S6). The paired drivetrain is Rear-Wheel Drive.
What is the combined EPA MPG for the 2011 Cadillac STS?
EPA combined estimate is 21 MPG.
What driver assistance and safety features are available on the 2011 Cadillac STS?
1 standard driver assistance features. Key features include Tire Pressure Monitoring System.
What body style is the 2011 Cadillac STS?
According to CarFocal's specs for the 2011 Cadillac STS, body style is sedan.
What drivetrain does the 2011 Cadillac STS use?
According to CarFocal's specs for the 2011 Cadillac STS, drivetrain is Rear-Wheel Drive. Transmission is Automatic (S6).
What are the NHTSA safety ratings for the 2011 Cadillac STS?
NHTSA ratings: Rollover 5/5.
What are the most common electrical system problems on the 2011 Cadillac STS?
Top complaint category: electrical system (3 reports, 33.3% of complaints).
Should buyers consider alternatives to the 2011 Cadillac STS?
Alternative listed in this guide: 2011 Mercedes-Benz E-Class.