AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2007 Cadillac Sts
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,000–$12,000
The 2007 Cadillac STS has a below-average reliability rating due to recurring issues with the electrical system and air bags, as well as serious recalls involving the fuel system and axle seals. These factors contribute to higher repair frequencies and costs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 70,000–100,000 miles | $300–$900 | common |
| air bags | 60,000–90,000 miles | $400–$1,200 | common |
| fuel pump | 80,000–100,000 miles | $500–$1,000 | occasional |
| rear axle seal | 50,000–80,000 miles | $250–$600 | occasional |
| engine | 100,000–130,000 miles | $1,000–$3,000 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Replace brake pads every 30,000 miles
- Transmission fluid change every 50,000 miles
- Spark plugs replacement at 100,000 miles
- Coolant flush every 60,000 miles
- Inspect suspension annually
- Rotate tires every 10,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Check engine light
- Frequent air bag warnings
- Fuel smell near rear
- Unusual electrical glitches
- Transmission fluid leaks
Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.