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Other or unknownPart report

2021 Infiniti QX50 Other or unknown Problems

Complaints
3about this part
Share
7%of 41 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the other or unknown of the 2021 Infiniti QX50, 7% of the 41 complaints for this model year.

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.

“there was a problem with safety recall a week after I took the vehicle test! I went to the dealer in Las Vegas many times, but they didn't find the mistake, they told me that the car was in order! There are no warning lights on the dashboard! Everything seems fine, but I don't know why he still writes it safety recall, don't clear this and why no one can clear this and help me!”

NHTSA complaint #11426659, filed 2021-07

“On October 29, 2025, my Infiniti QX50 was repaired at Naples Infiniti after the engine under shield detached while driving, ripping off the passenger-side wheel well liner. The technician stated the failure was likely caused by missing bolts from a prior oil change approximately two weeks earlier. Based on that representation, I authorized the repair. That explanation later proved to be incorrect. On January 18, 2026, the entire under shield detached again while driving, once more tearing off the wheel well trim and additional underbody plastic components. …”

NHTSA complaint #11717171, filed 2026-02

“The vehicle has experienced ongoing electrical and safety-system related malfunctions shortly after being purchased as an INFINITI Certified Pre-Owned vehicle in April 2025. The issues initially included flickering interior and exterior lights, intermittent door lock malfunctions, and other electrical irregularities. In June 2025, I received notification through the INFINITI app regarding a major engine recall involving engine bearing failure concerns affecting my vehicle. I brought the vehicle to Harte INFINITI for inspection regarding the recall and my electrical concerns. …”

NHTSA complaint #11738589, filed 2026-05

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2022318%
202137%
202039%
20192014%
2017215%
2016632%

Other parts of the 2021 Infiniti QX50

Engine
18 complaints
Electrical system
8 complaints
Forward collision avoidance
8 complaints
Engine cooling
7 complaints
Brakes
4 complaints
Transmission and drivetrain
4 complaints
Fuel system
2 complaints
Exterior lighting
1 complaints
Lane departure
1 complaints
Steering
1 complaints
Body and structure
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2021 Infiniti QX50

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