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 suspension70,000–100,000 miles$400–$800common
Braking system60,000–90,000 miles$300–$600common
Airbag inflator80,000–110,000 miles$250–$500occasional
Electrical wiring50,000–80,000 miles$150–$400occasional

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.