2015 Infiniti QX80 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
18 owner complaints analyzed
2 distinct recall campaigns
51,000 mi median reported failure mileage
Scope: 2015 model year. Data snapshot: . 9 complaints include usable failure mileage.
Most common problems
Fuel/Propulsion System is the most frequently named component, appearing in 6 of 18 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 4 | 22.2% |
| Fuel system concerns | 3 | 16.7% |
| Electrical and battery issues | 2 | 11.1% |
| Transmission and shifting | 1 | 5.6% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Fuel/Propulsion System | 6 |
| Engine | 5 |
| Air Bags | 4 |
| Service Brakes | 4 |
| Power Train | 3 |
| Vehicle Speed Control | 2 |
| Fuel System, Gasoline | 1 |
| Fuel System, Gasoline:Delivery:Fuel Pump | 1 |
Fuel/Propulsion System: 6; Engine: 5; Air Bags: 4; Service Brakes: 4; Power Train: 3; Vehicle Speed Control: 2; Fuel System, Gasoline: 1; Fuel System, Gasoline:Delivery:Fuel Pump: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 3 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 1; 50,000 to 74,999: 1; 75,000 to 99,999: 3; 100,000 to 149,999: 1; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 9 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 2 |
2015: 3; 2016: 1; 2018: 1; 2019: 1; 2021: 2; 2022: 2; 2023: 3; 2024: 2; 2025: 1; 2026: 2
Pattern summary
Fuel/Propulsion System leads the component reports. Braking behavior appears in 4 complaint narratives. Fuel system concerns appears in 3 complaint narratives. Electrical and battery issues appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10715893 · 2015-05-12 (May 12, 2015)
DRIVING DOWN A CITY STREET AT ABOUT 25-30 MPH WITH NO CARS IN CLOSE PROXIMITY IN FRONT OF VEHICLE. HEARD THREE QUICK BEEPS AND THEN THE CAR SUDDENLY STOPPED IN THE MIDDLE OF THE STREET. MOVED FOOT FROM GAS PEDDLE TO THE BRAKE TO FIND THE BRAKE TO THE FLOOR. NO INJURIES OR DAMAGE WAS SUSTAINED. THE VEHICLE WAS DRIVEN DIRECTLY TO THE DEALER WHERE THEY CAN NOT DUPLICATE THE PROBLEM. INFINITI CONSUMER AFFAIRS DEPARTMENT WAS CONTACTED. THEY AGREED WITH DEALER THAT IT COULD NOT BE DUPLICATED. COULD NOT TELL US IF SIMILAR COMPLAINTS HAVE BEEN FILED RE…
Owner-reported narrative. 1,500 miles reported. Look up ODI 10715893 at NHTSA ↗
Owner report 10903255 · 2016-09-02 (September 2, 2016)
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.
Owner-reported narrative. Look up ODI 10903255 at NHTSA ↗
Owner report 11465106 · 2022-05-18 (May 18, 2022)
The contact owns a 2015 Infiniti QX80. The contact stated while the vehicle was parked at the residence, he attempted to start the vehicle and the vehicle failed to start. There were no warning lights illuminated. The contact waited for a while before attempting to restart the vehicle. The vehicle was towed to an independent mechanic and was diagnosed with a defective fuel pump. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 95,000.
Owner-reported narrative. 95,000 miles reported. Look up ODI 11465106 at NHTSA ↗
Owner report 11567144 · 2024-01-23 (January 23, 2024)
I have been noticing intermittent gasoline smell outside of vehicle. It has been smelling stronger and more often so I decided to inspect it for the second. I removed the carpet and fuel pump cover and discovered the fuel pump is leaking gas. Now I cannot drive vehicle due to gasoline leaking every time the ignition is on. It is a serious safety and fire hazard. I have not contacted the dealer because it is not under warranty.
Owner-reported narrative. Look up ODI 11567144 at NHTSA ↗
Owner report 11258347 · 2019-09-26 (September 26, 2019)
FIRST I WANT TO MAKE IT CLEAR THAT I LOVE MY VEHICLE, HOWEVER IT HAS AN ISSUE WITH STARTING THE ENGINE OCCASSIONALY. IN THE BEGINNING I WAS BLAMING IT ON THE BATTERY, I HAD THAT CHECKED SEVERAL TIME AND ALL SEEMED TO BE OK? AFTER SEVERAL TIMES OF THIS HAPPENING I DECIDED I WAS LOSING CONFIDENCE IN THE TESTING AND I PURCHASED A NEW BATTERY. THAT SEEMED TO TAKE CARE OF THE PROBLEM FOR 10 MONTHS, WHEN IT STARTED AGAIN AND HAS HAPPENED 3 TIMES SINCE. I HAD A FRIEND JUMP START ME AND I DROVE STAIGHT TO THE DEALERSHIP I HAD PURCHASED THE VEHICLE AND …
Owner-reported narrative. 49,000 miles reported. Look up ODI 11258347 at NHTSA ↗
Owner report 11534561 · 2023-07-26 (July 26, 2023)
The airbag system in my recently purchased (4 months ago)QX80 Infiniti 2015 is malfunctioning/failed. It is available for inspection upon request. The warning light came on within 2 months of my purchase. I took it to the dealerships for repair, was told “this is unusual for this age car & mileage” stating it was the driver curtain airbag module which I paid a large amount to have replaced. When I received the car back, the warning light was no longer on. A month & a half later, the warning light returned. Took it back to the same dealership w…
Owner-reported narrative. Look up ODI 11534561 at NHTSA ↗
Owner report 11676569 · 2025-07-28 (July 28, 2025)
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.
Owner-reported narrative. 85,000 miles reported. Look up ODI 11676569 at NHTSA ↗