2014-2027 Infiniti QX80 Problems: 8 Known Issues

Fuel pressure sensors were not sufficiently tightened during production. As the vehicle is driven, vibration and thermal cycling allow the under-torqued sensor to loosen further until fuel escapes past its seal. A fuel leak in the engine bay, next to hot exhaust components and ignition sources, is a vehicle fire risk. NHTSA campaign 14V683000 covers QX80 alongside 2012-2014 Nissan Juke, 2012-2013 M56 and QX56, and 2014-2015 Q70 V8 vehicles. The recall began January 25, 2015 and the remedy is simply re-torquing the sensors.

The impeller inside the fuel pump module can absorb fuel, swell, and bind against the pump housing. Once it binds the pump fails and fuel delivery stops, stalling the engine — potentially at speed and without warning. Nissan's defect report traces it to specific production lots of impellers from supplier TI Fluid Systems that were molded out of density specification, and says no other Nissan or Infiniti models are affected. NHTSA campaign 21V373000 covers 2020-2021 QX80 and Nissan Armada with V8 engines; owner letters were mailed February 4, 2022, and the campaign numbers are R21A3 for Infiniti and R21A2 for Nissan. The remedy is replacement of the fuel pump module, not a software change.

The driver's frontal airbag inflator on affected vehicles was manufactured with an incorrect internal part. In a crash severe enough to demand deployment, the wrong part can block the flow of propellant, which causes the inflator to over-pressurize and rupture. A ruptured inflator sprays metal fragments into the cabin at the driver, turning the safety device into the injury source. NHTSA campaign 14V668000 covers 2014 QX80 vehicles built June 18, 2013 to February 11, 2014 and 2013 QX56 built September 1, 2012 to April 26, 2013. The recall began December 1, 2014. The inflator was supplied by Takata (TK Holdings), but this misbuild — an incorrect outer baffle in specific builds — is a separate defect from the Takata propellant-degradation campaigns.

On QX80 vehicles fitted with 22-inch wheels, the Gross Axle Weight Rating printed on the certification label is incorrect and higher than the true rating. An owner loading the vehicle to the posted number — a realistic scenario on a three-row SUV used for towing, hauling, or family road trips — can overload the axle and the tires without any indication of doing so, which puts the vehicle out of compliance with FMVSS 110, Tire Selection and Rims. NHTSA campaign 26V455000 covers 2014-2027 QX80 with 22-inch wheels alongside 2020-2026 Nissan Armada and 2011-2013 QX56. VINs became searchable on NHTSA.gov July 16, 2026, and interim owner letters were mailed September 2, 2026, with follow-up letters once the final remedy is available, anticipated Fall 2026. This is a very recent campaign with the final remedy still pending.

The QX80 equipped with Hydraulic Body Motion Control (HBMC) develops fluid leaks from the hydraulic actuators and lines. The system uses high-pressure hydraulic fluid to control body roll, and seal degradation leads to leaks and reduced effectiveness.

QX80 vehicles with the rear self-leveling air suspension develop a persistent rear sag that makes the truck look permanently loaded, and the failure usually cascades in a predictable order. The rubber air springs crack and leak with age, typically after five to seven years. The compressor then runs constantly trying to hold ride height, and running constantly is what burns it out — so an owner who ignores a slow sag ends up paying for the compressor as well as the springs. Separately and very commonly, the rear ride height sensor, which connects the frame to the lower control arm on the driver's side, fails when water infiltrates it and shorts, causing the system to command the wrong height or give up entirely. RepairPal puts height sensor replacement around $690-$719 and compressor replacement around $824-$858 before any air spring work.

The 5.6L VK56VD engine can develop timing chain stretch, particularly when oil changes are neglected. The primary and secondary timing chains elongate over time, causing rough idle, reduced power, and potential engine damage if not addressed.

The QX80 infotainment system exhibits noticeable lag when navigating menus, inputting destinations, and switching between audio sources. The aging hardware platform cannot keep pace with modern connected car expectations for a luxury SUV.