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Electrical systemPart report

2012 Infiniti QX56 Electrical system Problems

Complaints
9about this part
Share
16%of 57 total for the year
Median mileage
83,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 9 complaints about the electrical system of the 2012 Infiniti QX56, 16% of the 57 complaints for this model year. Where a mileage was given, the median is 83,000 miles.

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.

“My wife drove to my daughters school school for a basketball practice. She locked the doors using the keyfob like always. When she got back to the car she unlock the doors using the keyfob, but this time the drivers door did not open. She tried using the door entry button on the handle which did not work. She then got in thru the passenger door and tried to pull the handle to open the door and that did not work. From the inside of the car she had to climb over the center console to get into the driver seat. …”

NHTSA complaint #11309580, filed 2020-02, 100,000 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

“We have had problems with the battery since we bought the QX56. Suv's completely dies after a glove box light, radio has been played for 20 to 30 minutes, car cannot be jumped by typical cables, every time we either had to have a heavy duty jump done by tow company or battery was replaced by Infiniti. Timing chain and both catalytic converters need to be replaced, with engine issues. Infiniti had SUV for almost a month to fix engine and timing chain. Engine light still coming on then we where told the converters needed to be replaced. $5k to fix. …”

NHTSA complaint #10924936, filed 2016-11, 70,000 miles

“The contact owns a 2012 Infiniti QX56. While the contact was exiting the vehicle, the door failed to open properly. In addition, the timing chain failed. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failures. The dealer was not contacted. The approximate failure mileage was less than 50,000.”

NHTSA complaint #11081916, filed 2018-03, 50,000 miles

“The contact owns a 2012 Infiniti QX56. While driving approximately 65 MPH, the vehicle stalled without warning. The vehicle was restarted after several attempts. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 48,000.”

NHTSA complaint #10794965, filed 2015-11, 48,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
201339%
2012916%
201134%
2010415%
2009229%
2008815%
2007419%
2006911%
200579%
20041615%

Other parts of the 2012 Infiniti QX56

Engine
24 complaintsFuel system
7 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 30, 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