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moderate Owners of the 2014 INFINITI QX80 have filed 4 NHTSA complaints about the fuel system at roughly $1,200 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See fuel system across all vehicles →
Of the 4 fuel system complaints filed for the 2014 INFINITI QX80, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Fuel system accounts for 20% of all owner complaints filed against this vehicle, across 3 categories tracked.
A fuel leak in the presence of an ignition source could cause a vehicle fire.
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
EVAP 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.
full bulletin at NHTSA ↗INFINITI; 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 this bulletin.
full bulletin at NHTSA ↗INFINITI; FUEL TANK IS EXTREMELY DIFFICULT TO FILL The update below was sent out to Regions and Retailers in August of this year. We are re-circulating this update to make regional and retailer personnel aware that we are re-notifying clients at this time.
full bulletin at NHTSA ↗INFINITI; FUEL TANK IS EXTREMELY DIFFICULT TO FILL This bulletin has been amended. Changes have been made throughout. It is necessary for you to read this revised procedure to properly perform this action. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗INFINITI; FUEL TANK IS EXTREMELY DIFFICULT TO FILL IF CUSTOMER REPORTS: Customer routinely experiences difficulty fueling the vehicle at different fuel stations (filling nozzle shuts off every few seconds while filling at multiple stations and using multiple filling pumps). IMPORTANT: - If the customer does not report the above symptoms, this bulletin does not apply. - If the customer reports intermittent (but not consistent difficulty re-fueling), this bulletin does not apply. ACTION: Perform the Inspection Procedure in this bulletin, starting on page 4, only if the customer reports symptoms as described above. NOTE: Refer to the Repair Overview on page 2.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The contact owns a 2014 Infiniti QX80. The contact stated that while driving 55-60 MPH, the service engine light illuminated. The vehicle was taken to a non-Infiniti dealer, where it was diagnosed that the high-pressure fuel pump had failed. The vehicle was repaired. The contact stated that the failure persisted. Most recently, the vehicle was vibrating abnormally. The vehicle was taken back to…
Tl* the contact owns a 2014 Infiniti qx80. The contact received a notice for NHTSA campaign number: 14v683000 (fuel system); however, the part needed to do the repair was not available. The contact believed the manufacturer exceeded a reasonable amount of time. The manufacturer was made aware of the situation. The contact had not experienced the failure. Updated 7/14/15*cn the consumer stated…
The contact owns a 2014 Infiniti QX80. The contact stated that there was a strong fuel odor coming from the vehicle while the vehicle was parked. The contact stated that the odor was present in the garage and in her residence. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that the VIN was not included in a recall. The vehicle was not…
2014 Infiniti qx80. Consumer writes in regards to fuel smell in vehicle and received recall notice. *smd the consumer was informed, the part was not available. *jb
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
Based on the 4 complaints filed, fuel system issues most often appear around 105,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover fuel system issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.