AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2008 Cadillac Sts
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,500–$13,000
The 2008 Cadillac STS suffers from several common issues, especially with its airbags and electrical system, contributing to high repair costs over time.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| airbags | 60,000–80,000 miles | $700–$1,200 | common |
| engine | 70,000–100,000 miles | $1,000–$5,000 | common |
| electrical system | 50,000–80,000 miles | $300–$1,000 | common |
| power train | 80,000–120,000 miles | $1,500–$4,000 | occasional |
| steering | 80,000–110,000 miles | $700–$1,500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change
- Brake fluid replacement
- Transmission fluid change
- Coolant system flush
- Tire rotation and alignment
- Spark plug replacement
- Cabin air filter replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Airbag malfunction light
- Engine misfires
- Electrical shorts
- Transmission slippage
- Steering difficulties
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.