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Fuel systemPart report

2012 Infiniti QX56 Fuel system Problems

Complaints
7about this part
Share
12%of 57 total for the year
Median mileage
90,400miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the fuel system of the 2012 Infiniti QX56, 12% of the 57 complaints for this model year. Where a mileage was given, the median is 90,400 miles. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Had no prior issues, driving down the hwyat 65 miles per hr.. Car failed. Costed to side of road made it to repair shop and the fuel pump went out, which affected the timming chain and broke the teeth, which has affected the motor. This is a design defect that hundred other folks are having. I could have lost my life with this vehicle”

NHTSA complaint #11403384, filed 2021-03, 130 miles

“Was driving home, A/C was on, all lights was on, all of a suddenly lost of power to the engine and while going up hill, so I floor it so the vehicle so I can get past over the hill then I started to smell something through the vents like it was on fire coming from the engine bay so I pulled over and turned off the engine pop the hood but didn't see no fire, then when I tried to start the vehicle back up it wouldn't so I waited for few minutes and tried again, the vehicle started back up so I went on driving again but it didn't show any thing on the dash no check engine light at all. …”

NHTSA complaint #11202997, filed 2019-04, 115,540 miles

“The fuel gauge may be slow to register, fail to read full when the gas tank is actually full, or read inaccurately. When filling gas tank to full, after 30 miles the gauge is reading 2/3 of a tank or less while the miles to empty reading is still high.”

NHTSA complaint #11289989, filed 2019-12, 90,400 miles

“I had my catalytic converter replaced back in december 2016 . There was a recall for catalytic converter so I had it replaced. Now the check engine light is back on so I got it checked out and was told that I needed to replace the catalytic converter again. 35k miles later”

NHTSA complaint #11240421, filed 2019-07

“There's a strong odor of gasoline once we park the vehicle. I did some searches online and noticed there was a recall for nissan/infinit 2012 vehicles due to 'the fuel pressure sensors may not have been sufficiently tightened during production. As a result, the fuel pressure sensor may loosen with vehicle usage and cause a fuel leak. A fuel leak in the presence of an ignition source could cause a vehicle fire.' this includes 2012 infinit QX56 which is the vehicle we have but when I search my vehicles VIN, your site tells me there is no recall. …”

NHTSA complaint #11119825, filed 2018-08

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
201326%
2012712%
20112026%
2009229%
2008917%
200715%
200668%
20052531%
200466%

Other parts of the 2012 Infiniti QX56

Engine
24 complaintsElectrical system
9 complaintsOther or unknown
6 complaintsAir bags
5 complaintsEngine cooling
4 complaintsBody and structure
4 complaintsSuspension
4 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsSeat belts
1 complaintsVehicle speed control
1 complaints

← All problems reported for the 2012 Infiniti QX56

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology