Reliability, what owners report, and what it costs to keep.
AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.
Owners have filed 167 complaints with NHTSA about the 2009 Infiniti G37, and it carries no recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Air bags | 72 | 43% |
| Unknown or other | 13 | 8% |
| Air bags | 9 | 5% |
| Engine | 9 | 5% |
| Power train | 8 | 5% |
| Vehicle speed control | 5 | 3% |
| Power train | 4 | 2% |
| Electrical system | 4 | 2% |
| Electrical system | 3 | 2% |
| Structure | 3 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
The contact owns a 2009 Infiniti G37. The contact stated that the air bag warning light was flashing, with the message "Passenger Air Bag Off 2” displayed on the instrument panel. The vehicle was taken to the dealer to b
NHTSA complaint: Air bags
Our 2009 Infiniti G37x has developed the dreaded sticky dash issue. The materials in the dashboard have broken down, as a result the dashboard has become VERY reflective. It creates a heavy glare on the windshield both d
NHTSA complaint: Unknown or other
The dealership sold me a car with a rusted subframe without disclosing the condition of the subframe. The car will not pass inspection because of the subframe. I have had two independent inspection stations tell me this
NHTSA complaint: Suspension
Light blinks for (no airbag on passenger side) working. Light also blinks on dashboard showing no airbags. My car has just over 76,000 miles with meticulous maintenance and no crashes, accidents or even bumps. There
NHTSA complaint: Air bags
Front passenger air bag occupancy sensor failure. Sensor is located on front passages seat and activates or deactivates passenger air bags based on occupancy and or weight. The vehicle has less than 90,000 miles. Pas
NHTSA complaint: Electrical system
I am the original owner of this 2009 G37 sedan with only 12K miles. This car has never been in an accident. It is perfectly maintained and sits in a garage 99% of the time. Last week the airbag light flashed on. The d
NHTSA complaint: Electrical system
The passenger airbag does not work. The light on the dashboard indicated it needed service. When I took it into the dealer, they said it was $7,000 to fix. (More than the car is worth for resale.) After some research, I’
NHTSA complaint: Air bags
Car is parked in open space. Rain occurs throughout the morning and rain water is in the passenger front floor dripping from the A Pillar.
NHTSA complaint: Structure
| Reliability raw | 71 | good |
|---|---|---|
| Longevity est. | 73 | good |
| Maintenance | 80 | excellent |
| Depreciation | 52 | average |
| Performance | 64 | average |
| Efficiency | 37 | below average |
Percentile ranks against other midsize & large cars in the catalog.
What stands behind each score for this car:
Owners have filed 167 complaints with NHTSA for this model-year, and air bags is the most reported area with 72 of them (43%). No recalls are on record for it.
AVOIR scores its reliability 71/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 73/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2009 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 66/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.