AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2003 Cadillac Deville
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $5,000–$8,000
The 2003 Cadillac DeVille shows several safety-related recalls, notably affecting the ignition, fuel system, and airbags. Additionally, it has high complaints about the electrical system and airbag issues, indicating potential costly repairs. Overall, its reliability is concerning over the long term.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 70,000–100,000 miles | $300–$800 | very common |
| airbag system | 60,000–90,000 miles | $400–$1,000 | common |
| fuel system | 80,000–120,000 miles | $200–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Replace brake pads and rotors as needed
- Transmission fluid change every 30,000 miles
- Coolant flush every 60,000 miles
- Inspect and replace timing belt if needed
- Alignment and tire rotation every 10,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Recurring ignition issues
- Airbag warning lights
- Fuel smell indicating leaks or sensor issues
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.