2009 Infiniti G37

Typical pattern

0.9% of complaints about the 2009 Infiniti G37 came in the first year, which is unremarkable for a 2009 vehicle — around the middle of the 212 model-years on record. The median complaint arrives at 9.7 yr in service. The most-reported system is air bags (87 complaints), typically at 10.6 yr or about 75,000 miles.

Complaints: 212
Median age at failure: 9.7 yr
Median mileage: 68,000 n=158
Crash / fire / tow: 3.8% of reports
Safety recalls: 0

In owners’ own words

Air bags 24,264 mi 2.8 yr in service

AIRBAG SENSOR LIGHT FOR FRONT PASSENGER RANDOMLY DOES NOT REGISTER ADULTS OCCUPYING SEAT. WE HAVE NOT RECOGNIZED ANY PATTERN/SEATING POSITIONS THAT WILL DUPLICATE THE PROBLEM. *TR

Air bags 64,000 mi 6.4 yr in service

PASS AIR BAG LIGHT CAME ON AS IT IS MALFUNCTIONING. IT WILL NOT GO OFF. TOOK IT TO DEALER IN GREENVILLE SC THEY SAID THAT THE SENSOR IN THE SEAT IS LIKELY THE PROBLEM BUT DID NOT KNOW FOR SURE. COST WOULD BE BETWEEN $1500 AND $3000 TO REPLACE. I CALLED INFINITY SERVICE NATIONWIDE THEY SAID THERE IS NO RECALL. I SEE ON THIS REPORTING WEBSITE THAT THIS IS HAPPENING TO OTHERS AND THAT IT ALSO WAS AN ISSUE WITH THE 2008 G35 AND THAT FOR THE 2008 IT IS A RECALL ISSUE. THIS SHOULD BE A RECALL FOR THE 2009 G37 ALSO.

Air bags 75,000 mi 7.3 yr in service

THE AIRBAG CONTROL MODULE STOPPED FUNCTIONING AND TRIGGERED A FAULT MESSAGE WHICH THE AUTO DEALERSHIP DIAGNOSED. NO INCIDENT HAS OCCURRED OTHER THAN MY AIRBAGS BEING NONFUNCTIONAL. IS THIS PART OF A LARGER AIRBAG PROBLEM, OR AN ISOLATED PROBLEM?

Power train 800 mi 1.3 yr in service

2009 INFINITI G37X COUPE. 1ST GEAR IS EXCEPTIONALLY SLOW AND CAUSES DANGEROUS ACCELERATION PROBLEMS IN CERTAIN SITUATIONS. THE TRANSMISSION JERKS WHEN UP OR DOWN SHIFTING. WHEN I TOOK MY CAR TO INFINITI FOR SERVICE I WAS TOLD THAT INFINITI HASN'T RELEASED A SOFTWARE UPDATE OR RECALL FOR THIS PROBLEM YET BUT THAT THEY'VE BEEN RECEIVING NUMEROUS COMPLAINTS ABOUT THE PROBLEM. *TR

Other G37 model years

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

2009 Infiniti G37

When each system is reported — middle 50% of complaints

In owners’ own words

Other G37 model years

How to read this