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Transmission and drivetrainPart report

2015 Infiniti QX80 Transmission and drivetrain Problems

Complaints
3about this part
Share
17%of 18 total for the year
Median mileage
85,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the transmission and drivetrain of the 2015 Infiniti QX80, 17% of the 18 complaints for this model year. Where a mileage was given, the median is 85,000 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.

“This vehicle has an issue with uncontrolled acceleration when I first take off. With my brake pedal applied the engine RPM is approx. 550, which is in specs. As soon as I release the brakes the RPM jumps to 1100 RPM and the vehicle takes off on it's on. My vehicle has been to the dealer twice for this problem and they say they can't help me, my first experience I almost rear ended the vehicle in front of me. This an issue that needs addressed. Street conditions, weather conditions don't make a difference, and has done it since I purchased it.”

NHTSA complaint #10903255, filed 2016-09

“The contact owns a 2015 Infiniti QX80. The contact stated that on several occasions while driving approximately 20-25 MPH, the vehicle lost power, the engine revved abnormally, and the transmission failed to shift as intended. There were no warning lights illuminated. The vehicle was taken to a dealer; however, the cause of the failure was not duplicated. The manufacturer was not notified of the failure. The failure mileage was approximately 85,000.”

NHTSA complaint #11676569, filed 2025-07, 85,000 miles

“The most glaring safety issue caused by below is the SUV will try to move forward on its own while stopped and the brakes pressed that can potentially cause a fender bender. Infiniti/Nissan 5.6L engines have a history of failed or failing viscous cooling fan clutches. This goes back over a decade based on the TSG released by NISMO. When the viscous fan begins to fail, the most glaring symptom is that ECM will compensate by revving up the engine RPM...specially with the AC on. This can cause the RPM to go from around 500 to 1000 RPM during an RPM surge. …”

NHTSA complaint #11551999, filed 2023-10

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2021114%
201716%
201617%
2015317%

Other parts of the 2015 Infiniti QX80

Fuel system
8 complaintsEngine
5 complaintsAir bags
4 complaintsBrakes
4 complaintsVehicle speed control
2 complaintsOther or unknown
1 complaintsSeat belts
1 complaintsSuspension
1 complaints

← All problems reported for the 2015 Infiniti QX80

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