Most common 2012 Infiniti FX35 problems
Share of the 14 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti FX35 complaints by model year
Best FX35 years: 2011, 2010, 2012. Years to avoid: 2004, 2005, 2003. Compare all years →
What 2012 Infiniti FX35 owners say
Engine & cooling
The contact owns a 2012 Infiniti FX35. The contact stated that on several occasions, while the vehicle was started, there was an abnormal ticking sound coming from the engine compartment. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 98,000.
This engine uses a metal timing chain inside the engine. Infinit chose to use plastic guides and tensors to keep the chain in place and not wear stretch. This choice of PLASTIC results in the eventual failure of the components that are needed to keep the chain in place. First signs of impending failure is a rattle inside the engine. Eventual the chain will break loose and destroy the engine. The parts themselves can be purchased at any auto parts store for under $50.00, however labor is in the thousands or engine complete failure. A simple search of the internet will show that nearly all owners experience this. Most opting to sell the vehicle or chance failure does not occur. My mechanic has confirmed and I will go to an Infiniti dealer if need be.
Electrical system
The contact owns a 2012 Infiniti FX35. The contact stated while driving at an unknown speed, the vehicle failed to shift gears properly. The contact took the vehicle to the local dealer to be diagnosed. The contact was informed that the PCM needed to be replaced. The vehicle was not yet repaired however, the repair was pending. The manufacturer had been informed of the failure. The failure mileage was unknown.
My 2012 Infiniti fx-35 fuel gauge stopped registering fuel levels about three weeks ago, and the warranty expired three months ago. I noticed the issue when starting the car in my garage. I contacted the Infiniti dealer, and they mentioned that I would be responsible for the repair which would not be covered under warranty. The problem actually involves the fuel sending units, Nissan pn 25060-1cb0c and 25060-1cb1c, which retail at approximately $130.00 each. Parts and labor are in excess of $600.00. I looked up some past NHTSA bulletins involving Nissan fuel sending units and found the following NHTSA bulletins: 10v-074, 10v-075. All Nissan vehicles, including Infiniti, utilize the same design for their fuel sending units, which involve a floating arm with contacts that sweep across a contact array to register e-f. …
Air bags
Takata recall needed on Infiniti FX35 2012. I was in motion, driving 75 MPH on the freeway. A piece of debris bounced off of a car in my left lane and flew underneath my car. Bang! My airbags ejected and slammed my face hard. My whole front windshield blew white. I couldn't see anything in front of me. Trying to push the airbag down with one hand, while steering with the other hand at the same time, I was essentially driving blind on the freeway with speeding cars all around me. On top of that I couldn't move, because the seatbelts locked me. It's a wonder I didn't slam on the breaks, or swerve into the other lanes, a perfectly natural reaction. I used my peripheral vision to move into the slower lanes to the right of me. The last lane ended up being the exit lane. When the four of us got out to examine what we thought would be a huge dent, we were shocked. The car looked perfect. …
Takata recall. I was driving my FX35 2012 Infiniti and the airbag spontaneously deployed and exploded. I did not hit any car or object, this was not due to an accident.... Just a deployment. It was a large boom, loud explosion, smell of a strong gun powder odor that burns your eyes. The airbag was torn. Please note that this happened as I was driving down a suburb street, no more than 35 MPH. I stopped the car right in the lane as I was in shock ....seeing no obstruction I pulled into the gas station a few yards up. Loud
2012 Infiniti FX35 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl | 7-speed automatic | RWD | 16 / 23 / 19 |
| 3.5L 6-cyl | 7-speed automatic | AWD | 16 / 21 / 18 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2012 Infiniti FX35 a good car?
Based on 14 owner complaints filed with NHTSA, the 2012 FX35 rates average: 33% fewer complaints than a typical year of the FX35 at the same age. It is one of the best FX35 years by this measure. 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 FX35?
The engine & cooling — 4 complaints, 29% of all complaints for this model year. Next are the electrical system (3) and air bags (3).
How many recalls does the 2012 Infiniti FX35 have?
NHTSA lists no recalls for the 2012 Infiniti FX35. You can still confirm with your VIN using our VIN recall check.
What are the best and worst years of the Infiniti FX35?
The best years by complaints, compared at the same age, are 2011, 2010 and 2012. Years to avoid or approach with caution: 2004, 2005 and 2003. See the full Infiniti FX35 years comparison.
At what mileage do 2012 Infiniti FX35 problems happen?
The median mileage reported in complaints is about 62,000 miles; 13% 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.