AI Damage2014 Infiniti QX80: common problems
Owners of the 2014 Infiniti QX80 filed 21 complaints with NHTSA, most often about engine and fuel/propulsion system. Details by component below, with sources.
Key figures
- Owner complaints
- 21
What fails most often
- 1 Engine 29% of all complaints
- 2 Fuel/propulsion system 19% of all complaints
- 3 Fuel system 19% of all complaints
- 4 Electrical system 14% of all complaints
- 5 Suspension 10% of all complaints
- 6 Air bags 5% of all complaints
- 7 Service brakes 5% of all complaints
- 8 Steering 5% of all complaints
- Engine: 6 complaints (29% of all).
- Fuel/propulsion system: 4 complaints (19% of all).
- Fuel system: 4 complaints (19% of all).
- Electrical system: 3 complaints (14% of all).
- Suspension: 2 complaints (10% 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 cyl
- automatic, 7-speed
Drive: RWD, 4WD
Symptoms owners describe
How many of the 21 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) |
|---|---|---|---|
| Engine | 6 | 0 | 0 |
| Fuel/propulsion system | 4 | 0 | 0 |
| Fuel system | 4 | 0 | 0 |
| Electrical system | 3 | 0 | 0 |
| Suspension | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Visibility | 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.
There has been a constant gas smell coming from gas tank area since we purchased vehicle in 2/2026. I thought it was just fumes from adding fuel but have since (while reaching in to retrieve grandbaby from back seat, I noticed a strong smell reaching towards driver door and a slight gas smell reaching inside vehicle.
However it was brought to my attention by the mechanic that the left side of the rear sub frame was rootted out by rust and broke almost causing a major accident.
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.
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 diagnosed nor repaired. The contact related the failure to NHTSA Campaign Number: 14V683000 (Fuel System, Gasoline).
I starting hearing a grinding noise coming from engine couple of weeks ago. Took it to the Infinity dealership for a diagnostic test. The mechanic stated â timing chains were found to be stretched and metal was worn.â This is the same issue which prompted the recall of 2011-2013 QX56 models.
The contact stated while driving 50 MPH, the vehicle began to stall. The contact veered to the side of the road and kept the vehicle running. There was no warning light illuminated. The contact then returned to her residence. The contact stated that the failure reoccurred while driving.
The contact stated that while starting the vehicle, there was an abnormal squealing sound coming from the engine, lasting for approximately ten minutes. There was an unknown warning light illuminated during the failure.
My airbag indicator light came on almost immediately following purchase. I took it to be fixed by infiniti service department. After picking up the vehicle, the light came back on. This cycle repeated multiple times.
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 8,077 of 36,656 model years in the NHTSA data (top 22% most complained about).
On average one model year of the QX80 has 10 complaints (14 years in the data). This year has 21, above average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2014 Infiniti QX80?
Owner complaints to NHTSA most often mention: engine, fuel/propulsion system, fuel system. Total complaints: 21. The most frequent symptoms in complaint texts: warning lights, check engine (19%), fuel system, fuel smell (14%), knocking, grinding or other noise (14%).
How many service bulletins (TSB) were issued for the 2014 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 2014 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 2014 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.