AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2011 Cadillac Sts
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $7,000–$12,000
The 2011 Cadillac STS has an average reliability rating, with few owner complaints primarily focused on the electrical system and brakes. These issues do not suggest widespread severe problems.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 80,000–110,000 miles | $400–$1,000 | common |
| service brakes | 50,000–80,000 miles | $300–$900 | occasional |
| steering system | 90,000–120,000 miles | $400–$800 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake fluid replacement
- Transmission fluid change
- Tire rotations
- Coolant replacement
- Air filter changes
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Erratic electrical issues
- Diminished brake performance
- Unusual braking noises
- Steering difficulties
Generated by gpt-4o on 8/22/2026. Cost ranges are conservative estimates that account for typical regional variation.