Which parts fail
Components named in complaints (front, side and curtain air bags, sensors and inflators).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2009 Infiniti G37 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2009 Infiniti G37. The contact stated that the passenger's side air bag warning light was illuminated. The vehicle was taken to an independent mechanic who informed the contact that the seat needed to be replaced. The passenger's side seat wiring and sensor were faulty. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 53,000. The consumer stated he has taken is vehicle to the dealer and filed a complaint with Infiniti and both parties are stating there is nothing that they can do.
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 be diagnosed; however, there was no electrical failure found with the POD sensors. The dealer stated that the air bag needed to be replaced. The contact researched and found information on the failure of the air bags. The manufacturer was not made aware of the failure. The failure mileage was approximately 82,000.
The contact owns a 2009 Infiniti G37. The contact stated while driving at an undisclosed speed, the airbag warning light illuminated. The vehicle was taken to the local dealer to be diagnosed. The contact was informed that the passenger's side airbag sensor was damaged and needed to be replaced. The contact was informed that the part to fix the vehicle was no longer being manufactured. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage is approximately 100,000.
Single owner G37 sedan diagnosed with error code B1018 after reporting a flashing passenger air bag light that suddenly came on. Service provider unbolted seat, disconnected occupant sensor component, cleaned all connections, reconnected and secured so that connector couldn't move. Tried to erase code but unable to do do. Was told I would need a new bottom seat cushion and frame at a cost of approx $3-4k (not including labor). Advised to look at NHSTA for recall information for myself as technician indicated there is no recall for my vehicle. My prior car was a G37 sedan which did have a recall for the exact same issue and it's illogical that this one does not. In reviewing this site, more than 50% of the complaints for this vehicle are tied to the air bags and I stopped reading other complaints when the first five I read all had the exact same issue. …
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 are countless complaints, inquiries and threads on the internet regarding the above mentioned problem. I don't know if anyone has taken the time to make an official inquiry but it requires your scrutiny. The fix is a new seat and or an old one that the components still work. There are countless people drivng this vehicle without airbags. We need a fix that won't cost $10,000 (estimate from dealership). Also, where can one find a seat??? Inifinity needs to provide a fix that allows the airbags to function properly without the consumer having to find a new/used seat (and none are available nationwide). …
My dad gifted his 2009 infinity G37, which he purchased new, to my daughter. it has ~50,000 miles. One week into driving the car the air bag sign started flashing. Diagnosis indicated a B1018 error. Infinity of Escondido confirmed a failed OCS sensor for front passenger seat. Replacement cost: part $4100 bottom cushion with frame + $650 labor. Since the car has been hardly driven since originally purchased by my dad, it is clearly a case of a defective sensor, also considering that infinity G37 2007 & 2008 model years have been recalled for the same issue (recall # 08V521000). The entire airbag system in the car has been disabled due to this faulty sensor - this should fall under federal safety mandate and Infinity is refusing to assist. …
On my 2009 Infiniti g37, the supplemental airbag warning light keeps flashing. I was told by the dealer that the problem is the sensors in the seat cushion and the cost of fixing it is $7,050.00. I asked if that was a common problem and they said yes. This light just start flashing one day without any apparent cause. My issue is that there should be a recall on this since this affects so many of the Infiniti g series. This is a problem that so many owners face and it is not caused by wear and tear or accident or any disturbance whatsoever. In my case, my right front seat is seldom used. I searched the internet and visited the infiniti forums and well as facebook and other platforms and the number of infiniti owners with this woe are many. …
This vehicle has been in our ownership since July 2011, making us the second owner. Currently there is approximately 92,219 miles on the car. The airbag light began blinking without any incident or accident. We took it to the local dealership this week. We were told the occupant sensor failure code B1018 was the issue. Per their words on our invoice "cannot get sensor from Infiniti. Will need seat bottom to correct the issue." The estimated price for this repair is $6,400. I noticed the same problem was reported in the 2007 and 2008 models, and these models were recalled. So now I have no airbag protection which makes this a safety issue. I have spoke with Infiniti corporate office regarding this issue without any assistance in resolving the problem. In my opinion this is a manufacturing defect just as it was in the 2007 and 2008 models, and should be recalled.
A recall was issued for a faulty passenger side airbag sensor on the Infinity G37 model year 2007 -2008 (08V521000). I own a 2009 G37 and it would appear this car is experiencing the same safety issue. The airbag off light for the front passenger seat remains illuminated even with a 200 pound adult seated in it. I also have a constantly flashing airbag warning that is displayed on the dashboard. I am extremely concerned that should my vehicle be involved in a crash, passenger side airbag will not deploy even though there is someone seated in that seat. Infiniti has stated that to repair this issue will cost over $5000 which is nearly the entire value of the car. This recall should be extended to additional model years of the G37.
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 dealer said the error code was B1018 (Occupant Classification Sensor malfunction). The cost of the passenger seat cushion alone is $7,500. This problem was also found on the 2007 & 2008 G37 models and part of a NHTSA recall (#08V521000). I found this problem all over the internet and this NHTSA site for this model year G37. PLEASE INVESTIGATE THIS PROBLEM. Why isn't this part of the 2007/2008 recall when the sensor is bad in both instances?
Airbag complaints in other G37 years
Frequently asked questions
How common are airbag problems on the 2009 Infiniti G37?
NHTSA has 88 complaints about the air bags of the 2009 Infiniti G37, 53% of the model year's 167 complaints. The component named most often is frontal › sensor/control module (1 mentions).
Is there a recall for 2009 Infiniti G37 airbag problems?
No. NHTSA lists no air bags recall for the 2009 Infiniti G37. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2009 Infiniti G37 airbag problems start?
Half of the complaints with a recorded mileage happened before about 75,000 miles, and 10% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 1 injury to air bags problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.