2019 Infiniti QX80 Fuel system Problems
- Complaints
- 2about this part
- Share
- 10%of 21 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2019 Infiniti QX80, 10% of the 21 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.
“Fuel gauge erratically and inaccurately showing different levels of fuel- sometimes full, empty or anywhere in between. Potential risk of running out of gas and not knowing. Recalls are listed for other vehicle model years but not this one. No warning messages appear on dashboard. First noticed the problem Feb 2025 and continues to worsen. It has not been seen by a mechanic or dealership yet since first experiencing.”
NHTSA complaint #11672347, filed 2025-07Related 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…
- 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.
- 10180978Sep 14, 2020INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of…
- 10172179Feb 18, 20202016-2019 QX80; MIL ON WITH DTC P0174 IF YOU CONFIRM The MIL is ON and only DTC P0174 (FUEL SYS LEAN B2) is stored in the ECM. ACTION 1. Confirm the current ECM part number. 2…
- 10158424Mar 5, 2019INFINITI; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED…
Fuel system: other model years
Other parts of the 2019 Infiniti QX80
9 complaintsOther or unknown
5 complaintsBack-over prevention (rear camera)
2 complaintsBrakes
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine
1 complaintsExterior lighting
1 complaintsLane departure
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2019 Infiniti QX80
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