AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2009 Infiniti G37
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $6,500–$12,500
The 2009 Infiniti G37 faces notable challenges, primarily with its airbag system, as reflected by the high number of complaints. Engine and powertrain issues also present, contributing to higher repair costs and reduced reliability.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| airbags | 50,000–100,000 miles | $500–$1,500 | very common |
| engine | 70,000–110,000 miles | $1,000–$4,500 | common |
| powertrain | 80,000–120,000 miles | $1,500–$3,500 | common |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil change every 5,000 miles
- replace brake pads every 40,000 miles
- check suspension annually
- transmission fluid change every 60,000 miles
- replace spark plugs every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- airbag warning lights
- engine misfires
- unusual transmission noises
- jerking during acceleration
Generated by gpt-4o on 8/20/2026. Cost ranges are conservative estimates that account for typical regional variation.