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ProblemsByVin Index / 2009-INFINITI-G37 / COMPLAINTS
Full complaint record · NHTSA

2009 INFINITI G37 owner complaints

167 complaints filed with NHTSA on this vehicle , including 1 reporting a crash, fire, injury, or fatality. Showing the 300 most recent — grouped by category for scanning.

electrical 6 complaints shown

12 total in this category · moderate · avg repair $850 · see electrical cluster analysis →
12/29/2020 66,500 mi ODI #11385502.0

The passenger airbag light is blinking due to a faulty sensor contained in the passenger seat. If this light does not turn off, no airbags will deploy in the event of an accident, which is a huge safety issue. Infiniti charges more than $7000 to replace the sensor and the seat to fix this out of warranty. Infiniti refuses to do a recall for this issue which has been found to be very common in Nissan and Infiniti vehicles.

12/28/2023 ODI #11562407.0

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?

12/23/2013 72,000 mi ODI #10557047.0

My 2009 Infiniti g37x lost power without warning on 3 separate occasions. The first two times the problem occurred in jan 2013 (car was still under 60k miles warranty). I was driving on the highway on a cold night and my car stalled at around 55/65 MPH mark. The car was shaking when I tried to accelerate. When I pulled over to the emergency lane, my car had lost complete power. Then, I restarted the car and the engine acted and sounded normal. I warmed up the car for 5 minutes before I drove home. I went to Infiniti to get the problem fixed and I reported the problem to Infiniti of north america. Infiniti could not identify or re-create the problem. On dec 7, 2013, I noticed my car acted like it was losing power when I accelerated the car to 65 MPH while I was on the highway on a co

12/21/2012 67,235 mi ODI #10489465.0

When I press the button to lock the doors on my remote the horn beeps like normal, but the driver door does not lock. The lock operate manually with the key, so it look like its not the lock mechanism itself. *tr

12/09/2019 23,522 mi ODI #11287950.0

Airbag light is blinking so took to dealership charged $149.00 and said they cleared codes...service man said that something about passenger seat needed to be replaced for around $7000.00...light has come back on😬

12/08/2020 126,000 mi ODI #11378402.0

After purchasing the vehicle used, I been experiencing issues with the vehicle. The service engine soon indicator has illuminated on the dashboard after two weeks of the purchase. I took the vehicle to valvoline for the oil change service, and the light was still illuminated. Notified my personal mechanic of the issue as well as the dealer. Took the vehicle to autozone and used their free diagnostic reader, which stated the o2 sensor for bank 2 sensor 1 as the issue. Purchased the part from the dealer, took it to the mechanic for service. After I paid for the service, the same day the service engine soon light illuminated again. The next day I took it back to autozone and the diagnostic read bank 1 sensor 1. Took it to multiple mechanics to only have the run around of paying them to look a

airbags 4 complaints shown

84 total in this category · moderate · avg repair $1,100 · see airbags cluster analysis →
12/31/2020 73,200 mi ODI #11385800.0

Upon starting the 2009 g37 with just over 73k miles on it, the airbag light began flashing.the following week, on december 28, 2020, I took the car to sewell Infiniti of ft. Worth to have the problem diagnosed. The fault code "b1018 occupant sensor unit fail" was found. The only remedy is to replace the passenger seat lower cushion assembly for $6575.89. The upshot is the car is unsafe to drive with a person in the passenger seat because the airbags will not deploy.

12/27/2018 30,000 mi ODI #11163670.0

Airbag sensor faulty in passenger seat. Known issue among Infiniti owners. Infiniti dealers stating that seat must be replaced, which costs upwards of $5000. Car only has 32k miles on it

12/19/2016 65,000 mi ODI #10936259.0

The airbag of the front row passenger seat turns off even there is an adult passenger sitting on it. I've searched online and did some diagnostics, and based on the flashing pattern on the console, it seems the problem is with the SRS (safety restrain system) ocs (occupant classification system), as such even an adult is sitting there, in an accident the airbay may not be deployed. This is a very serious threat to the safety of a passenger. Note my car has never been involved in any accident or collision. More google search LED me to this link: https://www.nytimes.com/2014/03/27/automobiles/Nissan-recalls-990000-cars-and-trucks-for-air-bag-malfunction.html?hpw&rref=automobiles&_r=1 this is exactly the same problem with my car. While Nissan recalled those car, I think the regulat

12/08/2018 50,500 mi ODI #11156988.0

The airbag light flashes red on the dash panel indicating the passenger airbag is not on. It also shows on the panel under the air conditioner controls that the passenger air bag is off. This is a safety issue and it is due to a faulty safety restraint system sensor the in the passenger bottom seat. Infiniti has had recalls and issues with this SRS system in the passenger seat while they did not recall the 20109 Infiniti g37. My g37 has approximately 50,500 miles and they want over $6,700. 00 to replace the whole driver's seat. This is a defective product and someone needs to be held accountable. To turn off the blinking light requires the airbag system to be disabled. This presents a serious safety issue since I am now driving a vehicle without any airbag protection.

other 3 complaints shown

12/24/2015 10,122 mi ODI #10812014.0

My g37 09 Infiniti is great. But sometimes when I am driving it jerks and on my dash board it indicator shows up as slip. Could you tell me what is this issue?

12/12/2017 180,000 mi ODI #11054088.0

When driving at various speeds the car rpms will not go above 2500 rpms. As I was driving the car lost power and started to stall. I have had to put the car in neutral and coast to a stop from 70 MPH. This has happened now at least 15 times over the last two years. Many posts I've read that Infiniti is aware of the issue but I have yet to find a solution. The issue is very dangerous and know of many others that have had this issue from posts online.

12/11/2017 ODI #11053816.0

'takata recall' 2009 g37 Infiniti cracked dash and starting to get sticky seems to be a poor quality problem on 2008 & 2009 Infiniti g37 I'm very disappointed because I like the car and take good care of the car, contacted infinti and they say have to pay for repair due to factory warranty expired .these dashboards are costly to replace and should not be the responsibility of the consumer ,I also have a 2001 Nissan altima and the dashboard is in perfect condition how can this be and older car with a better dashboard than luxury car

powertrain 2 complaints shown

17 total in this category · severe · avg repair $2,500 · see powertrain cluster analysis →
12/30/2009 ODI #10297540.0

We picked up our brand new Infiniti g37 sedan out of town (52 miles on it) and the next day, drove it home 300 highway miles. Obviously, we were extremely fortunate the problem didn't begin on the trip. By the second day, the car started dying when we came to a stop. At first, the problem didn't happen every time we slowed down, and we discovered putting the car in neutral proved helpful. We hoped it was a fluke that would quickly abate. Unfortunately, by the next day, the problem worsened, and the check engine light went on. We took it to the local dealer, and with Infiniti, they determined the torque converter was locking, and the car needed a new transmission/drive train - apparently, they found a po744 error code. This is our 3rd Infiniti, and we've never had a single mechanic

12/12/2022 ODI #11496986.0

I was driving at about 65 mph on the tail end of a roughly 2 hour trip. The car shut off on me completely. Fortunately there weren't many cars on the road, so I was able to force the steering wheel - since power steering went out as well, I needed to turn the wheel forcefully - to the shoulder. The brakes worked ok, but not well, again because the engine shut off, so I was forcing the brakes and they took a lot longer to work than normally. Had there been normal to heavy traffic, I'd definitely have been in a very bad crash. The vehicle is available for inspection if needed. This is the second time this situation has occurred to me in this vehicle. There was no warning lamp, message, or symptom prior to or after the incident. A dealer, manufacturer, police, insurance, nor anyone else has

wheels 1 complaint shown

12/24/2015 ODI #10812013.0

I love my g37. But my tire on the front driver side has a slow leak and I took it into the Infiniti shop and they stated my tire as fine. But they place some nitro in my tire. Yet for about two days in my dash bard the sensor light for the tire came on again and my tire looked flat again. These tire was purchased at the Infiniti shop also.

cruise control 1 complaint shown

7 total in this category · severe · avg repair $600 · see cruise control cluster analysis →
12/19/2009 Crash ODI #10296445.0

I purchased a new g37x Infiniti on march 31, 2009. On april 14, I was driving in a line of traffic and had to stop for a red light. I applied my brake and instead of stopping the car kept on accelerating (lunging) forward and finally hit the car in front of me. I was going slowly and there was no damage. The driver of the hit vehicle got out to inspect the damage and while he was looking, the car lunged forward again, almost hitting him. I thought perhaps it was my fault because it was raining out and the car has ABS brakes which my previous 12 year old car did not have so I thought I didn't know how to drive in the rain. I immediately drove straight to the Infiniti dealer and they checked it out and could find nothing wrong. On saturday, november 7, 2009, I was coming to a stop sign and a

brakes 1 complaint shown

6 total in this category · severe · avg repair $450 · see brakes cluster analysis →
12/15/2012 31,612 mi ODI #10489721.0

While stopping vehicle, braking became non-responsive and engine began racing. Vehicle was extremely difficult to stop completely. After taking foot off of brake pedal, vehicle lunged forward as if accelerator pedal was fully depressed. This has occurred on 12/9/12 , 12/10/12, 12/15/12. Infiniti has not corrected problem. This rapid acceleration / non-responsive braking has caused two (2) near miss accidents.

steering 1 complaint shown

4 total in this category · moderate · avg repair $700 · see steering cluster analysis →
12/11/2016 79,000 mi ODI #10934533.0

I was driving about 35 miles an hour and about to turn right at an intersection when my steering went out completely. The steering wheel was no longer connected to the wheels, it was just spinning around. I was able to slow down and drive over a curb and rest on the median, during rush hour, in the dark and call aaa. According to the dealership this is what happened: "on your vehicle the steering shaft that runs down from the steering wheel separated from the coupler. When this happened it damaged the spiral cable and the steering angle sensor. We have reattached the shaft to the coupler and reinstalled the safety nut that holds it into place, but the steering angle sensor and the spiral cable will need to be replaced". They suggested I call consumer reports and I have to pay for the

engine 1 complaint shown

10 total in this category · moderate · avg repair $3,100 · see engine cluster analysis →
12/10/2018 56,000 mi ODI #11157261.0

Rear galley gasket failure, vehicle is out of warranty, but only has 56k miles on the engine. Is daily driven and not used for any driving outside of the day to day routine. Contacted the dealership and while they see these gasket failures often they were unable to do any type of work on the vehicle due to it being outside of the warranty. The fix will be to replace the gasket which will be a 4,000$ repair, on a car that is only 9 years old and has low miles. This failure occurred while my wife was driving and instantly threw the car into limp mode, because of the lowered oil pressure reading, which resulted in a car unable to continue highway speeds and without knowledge of what limp mode was and what was occurring this could be a very dangerous situation that appears to be a common

Showing 300 of 167 total complaints. The full federal record is available at nhtsa.gov/vehicle/2009/INFINITI/G37#complaints.
Source: National Highway Traffic Safety Administration (NHTSA) owner complaint database. Last synced 2026-06-14. Complaints are owner-submitted and unverified — the existence of a complaint is not proof of a defect, but a pattern of complaints around the same component is a signal worth weighing. Verify any specific filing at nhtsa.gov.
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