AI Damage2015 Infiniti QX80: common problems
Owners of the 2015 Infiniti QX80 filed 18 complaints with NHTSA, most often about fuel/propulsion system and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 18
- involving a crash
- 1
What fails most often
- 1 Fuel/propulsion system 33% of all complaints
- 2 Engine 28% of all complaints
- 3 Air bags 22% of all complaints
- 4 Service brakes 22% of all complaints
- 5 Powertrain 17% of all complaints
- 6 Fuel system 11% of all complaints
- 7 Vehicle speed control 11% of all complaints
- 8 Seat belts 6% of all complaints
- Fuel/propulsion system: 6 complaints (33% of all).
- Engine: 5 complaints (28% of all).
- Air bags: 4 complaints (22% of all).
- Service brakes: 4 complaints (22% of all), 1 of them with a crash reported by the owner.
- Powertrain: 3 complaints (17% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 5.6 L · petrol · 8 cylnamed in 1 complaints
- automatic, 7-speed
Drive: RWD, 4WD
Symptoms owners describe
How many of the 18 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel/propulsion system | 6 | 0 | 0 |
| Engine | 5 | 0 | 0 |
| Air bags | 4 | 0 | 0 |
| Service brakes | 4 | 1 | 0 |
| Powertrain | 3 | 0 | 0 |
| Fuel system | 2 | 0 | 0 |
| Vehicle speed control | 2 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Other | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
I was driving down back street and applied brakes due to a stop sign ahead of me and my vehicle did not stop. I was in total shock at the time of the accident and could not believe I rear ended another vehicle. The date of the accident was 2/9/2018. After speaking with two of my other friends weeks later.
The vehicle was towed to an independent mechanic, where it was discovered that the rear control arm was severely corroded. The mechanic then informed the contact that an unknown TSB was related to the failure, and the contact was referred to the manufacturer for assistance.
There is a strong smell of gas on the driver side after I have been driving. Other innfinity QX80 owners reported online with the same model, that this is in fact a recall issue for this make and model, and year. However when i call Infinity, they say they cant find anything on my car. it is not??
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.
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.
When the viscous fan begins to fail, the most glaring symptom is that ECM will compensate by revving up the engine RPM...specially with the AC on. This can cause the RPM to go from around 500 to 1000 RPM during an RPM surge. The surge is enough to move the SUV forward at a stop unless the brake is firmly pressed.
The warning light came on within 2 months of my purchase. I took it to the dealerships for repair, was told âthis is unusual for this age car & mileageâ 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.
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.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 8,622 of 36,656 model years in the NHTSA data (top 24% most complained about).
On average one model year of the QX80 has 10 complaints (14 years in the data). This year has 18, above average.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2015 Infiniti QX80?
Owner complaints to NHTSA most often mention: fuel/propulsion system, engine, air bags. Total complaints: 18. The most frequent symptoms in complaint texts: warning lights, check engine (33%), fuel system, fuel smell (22%), airbag warning light (11%).
How many service bulletins (TSB) were issued for the 2015 Infiniti QX80?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2015 Infiniti QX80 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2015 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.