AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2009 Mazda Cx-9
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $4,500–$7,500
The 2009 Mazda CX-9 has significant issues, including airbag recalls and brake complaints. The suspension system shows corrosion risk, and electrical system wiring is prone to damage. These issues suggest higher repair needs, affecting overall reliability.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| Front suspension | 70,000–100,000 miles | $400–$800 | common |
| Braking system | 60,000–90,000 miles | $300–$600 | common |
| Airbag inflator | 80,000–110,000 miles | $250–$500 | occasional |
| Electrical wiring | 50,000–80,000 miles | $150–$400 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes every 5,000 miles
- Brake inspection and service every 10,000 miles
- Tire rotation every 7,500 miles
- Transmission fluid change every 60,000 miles
- Coolant replacement every 3 years
- Spark plug change every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Excessive brake noise or vibration
- Suspension creaks or clunks
- Dashboard airbag warning light
- Electrical malfunctions, such as seat adjustment issues
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.