Most common 2012 Infiniti M37 problems
Share of the 31 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti M37 complaints by model year
Best M37 years: 2013. Compare all years →
What 2012 Infiniti M37 owners say
Steering
When the steering wheel is adjusted up, down or the telescopic adjustment is used a loud pop is heard, the casing comes apart and it is no longer possible to turn the wheel left or right.
I'd like to report a problem that has occurred with my 2012 Infiniti M37 which seems to be pretty fatal. The plastic cover that covers the steering wheel's rod cracks open when the steering wheel is tilted to a lower position. Once the cover is cracked, steering wheel rubs on to the plastic behind it and makes the steering wheel nearly impossible to steer. If someone faced this issue by changing their steering wheel position while driving, it will surely lead to a fatal accident. This issue seems to happen to other vehicles as well according to the forum link attached: http://forums.nicoclub.com/steering-wheel-rubbing-plastic-housing-t609452.html I have tried to contact Infiniti regarding this issue and the answer I received was that there's nothing they could do since I am out of warranty. …
Air bags
The contact owns a 2012 Infiniti M37. The contact stated that the front passenger's side air bag warning light was illuminated. The vehicle was taken to the dealer; however, the vehicle was not diagnosed. The contact was quoted a diagnostic fee and declined to pay the fee. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 68,000.
The front passenger airbag warning light came on with a dash warning flashing light. I isolated the fault to the passenger seat weight sensor, which prevents the airbag from deploying when a passenger of less than 90 pounds is sensed in the front seat. The time from the onset of the warning light to discovery of the actual fault was less than a week and this was facilitated by a mechanic with a sophisticated enough OBD reader to flesh out Infiniti codes. I called my local Infiniti dealer in Tacoma, WA and they were able to supply a part number but it has been discontinued for the 2011-2013 Infiniti M37 models. Without this sensor working, the passenger airbag may not deploy in the event of a collision, and that is unsatisfactory/downright unacceptable. These cars will operate for 20 plus years and are otherwise engineered to last 200/000 miles. …
Engine & cooling
The contact owns a 2012 Infiniti M37. The contact stated that upon taking the vehicle to an independent mechanic for an oil change, she was informed that the radiator pressure O-ring was leaking coolant. The independent mechanic diagnosed that the radiator needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was 96,294.
2 days ago I was leaving the market & my car won't start every light from engine , brakes, electrical come on. I waited 15 minutes @ it started. This has happened at least 7 times. I have May serviced on a regular basis. I've mentioned it to my dealer, I thought it could be my battery, it was not. The said they don't know what is going on. I've had to call family to come & get several times. The car was stationary each time.
2012 Infiniti M37 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.7L 6-cyl | 7-speed automatic | RWD | 18 / 26 / 21 |
| 3.7L 6-cyl | 7-speed automatic | AWD | 18 / 24 / 20 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2012 Infiniti M37 a good car?
Based on 31 owner complaints filed with NHTSA, the 2012 M37 rates average: 1.2× as many complaints as a typical year of the M37 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2012 Infiniti M37?
The steering — 11 complaints, 35% of all complaints for this model year, most often about column. Next are the air bags (8) and engine & cooling (7).
How many recalls does the 2012 Infiniti M37 have?
NHTSA lists no recalls for the 2012 Infiniti M37. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Infiniti M37?
The best years by complaints, compared at the same age, are 2013. See the full Infiniti M37 years comparison.
At what mileage do 2012 Infiniti M37 problems happen?
The median mileage reported in complaints is about 62,000 miles; 36% of problems with a recorded mileage started before 50,000 miles.
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.