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Transmission and drivetrainPart report

2011 Infiniti QX56 Transmission and drivetrain Problems

Complaints
4about this part
Share
5%of 78 total for the year
Median mileage
84,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the transmission and drivetrain of the 2011 Infiniti QX56, 5% of the 78 complaints for this model year. Where a mileage was given, the median is 84,500 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.

“Fuel leveling sensor is faulty in a large variety of Infiniti cars, but there is not recall for my VIN. The car's fuel gauge goes up and down all the time and tells me I'm on empty when I'm not and never registers full even when it was just filled up. It can jump from reading 330 miles left to empty down to 299 and back up to 330 in just a few seconds. The diagnostic confirmed a problem, but they want over $1,000 to fix a known problem in many of their makes and models. This doesn't even touch on the timing chain issue that is faulty as well. Luckily, there is a recall for that one. …”

NHTSA complaint #10883600, filed 2016-07, 102,000 miles

“Problems with the timing belt chain on newer model Infiniti QX56. Problem of car making whistling noise appeared early after purchase and intermittently thereafter but became prominent in july 2011. Appears to be a recurring problem with this vehicle model. Dealer had to replace the entire engine on the vehicle to address the issue. However, we believe the underlying defect in the timing belt chain will continue to occur and that there is the potential the engine could fail and cause a major accident(s) and/or fatalit(ies).”

NHTSA complaint #10483640, filed 2012-11, 35,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
201339%
201247%
201145%
200848%
200679%
200556%
200444%

Other parts of the 2011 Infiniti QX56

Engine
37 complaintsFuel system
20 complaintsSuspension
9 complaintsOther or unknown
8 complaintsElectrical system
3 complaintsEngine cooling
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsBody and structure
2 complaintsVehicle speed control
2 complaintsEquipment
1 complaintsSteering
1 complaints

← All problems reported for the 2011 Infiniti QX56

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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