2021 Infiniti QX50 Fuel system Problems
- Complaints
- 2about this part
- Share
- 5%of 41 total for the year
- Median mileage
- 4,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2021 Infiniti QX50, 5% of the 41 complaints for this model year. Where a mileage was given, the median is 4,000 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.
“Around 530pm At the corner of Briarcliff Rd NE Atlanta Ga and N Druid Hills Rd NE Atlanta GA As I was about to accelerate after the Red Light turned green, my car experienced a significant loss of power. Several warning lights came on, the engine light came on and a warning that said System Default came on. I was almost rear ended but was able to put on my hazards and coast to the side of the road, where I turned the car off and back on. It continued to display the warning and system default message as well as loss of power. I was able to coast into the parking garage at work and park. …”
NHTSA complaint #11704901, filed 2025-12Related service bulletins
- 10213151Apr 5, 2022SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one…
- 10211980Mar 11, 2022FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous…
- 10208932Feb 7, 2022EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- 10202232Sep 9, 2021FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE IF YOU CONFIRM The client states that a fuel and/or oil smell is present when the vehicle is parked…
Fuel system: other model years
Other parts of the 2021 Infiniti QX50
18 complaintsElectrical system
8 complaintsForward collision avoidance
8 complaintsEngine cooling
7 complaintsBrakes
4 complaintsTransmission and drivetrain
4 complaintsOther or unknown
3 complaintsExterior lighting
1 complaintsLane departure
1 complaintsSteering
1 complaintsBody and structure
1 complaintsVehicle 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