AI Damage2009 Infiniti G37: common problems
Owners of the 2009 Infiniti G37 filed 167 complaints with NHTSA, most often about air bags and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 167
- involving a crash
- 5
What fails most often
- 1 Air bags 53% of all complaints
- 2 Engine 13% of all complaints
- 3 Powertrain 11% of all complaints
- 4 Electrical system 10% of all complaints
- 5 Seats 8% of all complaints
- 6 Vehicle speed control 5% of all complaints
- 7 Service brakes 4% of all complaints
- 8 Visibility 4% of all complaints
- Air bags: 88 complaints (53% of all), 2 of them with a crash reported by the owner.
- Engine: 21 complaints (13% of all), 1 of them with a crash reported by the owner.
- Powertrain: 18 complaints (11% of all), 2 of them with a crash reported by the owner.
- Electrical system: 16 complaints (10% of all).
- Seats: 13 complaints (8% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3.7 L · petrol · 6 cyl
- automatic, 7-speed
- manual, 6-speednamed in 1 complaints
Drive: RWD, AWD
Symptoms owners describe
How many of the 167 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Air bags | 88 | 2 | 0 |
| Engine | 21 | 1 | 0 |
| Powertrain | 18 | 2 | 0 |
| Electrical system | 16 | 0 | 0 |
| Seats | 13 | 0 | 0 |
| Vehicle speed control | 9 | 1 | 0 |
| Service brakes | 7 | 1 | 0 |
| Visibility | 7 | 0 | 0 |
| Structure | 5 | 0 | 0 |
| Steering | 4 | 0 | 0 |
| Suspension | 3 | 0 | 0 |
| Engine and cooling | 2 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Wheels | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
My car was slowing down and jerked in and out of first gear ive been having this problem for motnths I looked on infiniti forum and seen itb12-027d and infiniti will not fix my car I almost hit someone car due to the car driving really weird !
Pulling into parking stall (brakes applied / traveling 5-10 mph) the car lurched forward twice and stuck a parked full size truck. The car bounced backwards and lurched forward again and stuck the truck a second time and bounced backwards again. The ( off button) was able to be pushed at that time.
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 contact stated that the air bag warning light was flashing, with the message "Passenger Air Bag Off 2â 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 glare makes it very difficult to see a night when street lights and headlights reflect off of the dash. Thankfully there has been no accidents caused by this issue, but this greatly increases the risk of accident when driving this vehicle. This is a common issue among all vehicles from 2009.
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 car is unsafe to drive.
Passenger airbag/seat belt warning lamp on. Passenger airbag off indicator light remain on even when passenger seated. Repair cost estimated over $5,000. Vehicle will not pass inspection.
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).
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 2,402 of 36,659 model years in the NHTSA data (top 7% most complained about).
On average one model year of the G37 has 67 complaints (8 years in the data). This year has 167, above average.
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2009 Infiniti G37?
Owner complaints to NHTSA most often mention: air bags, engine, powertrain. Total complaints: 167. The most frequent symptoms in complaint texts: airbag warning light (29%), warning lights, check engine (17%), stalls while driving (5%).
How many service bulletins (TSB) were issued for the 2009 Infiniti G37?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2009 Infiniti G37 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2009 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.