The service and repair manual for the 2021 INFINITI QX80 — the 5.6L V8 engine, 4 trims. Matched to this exact model year, so the specifications and sequences are the ones INFINITI published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 5.6L V8 — 339 cu in, DOHC |
| Trims | Premium Select Sport Utility 4-Door · Luxe Sport Utility 4-Door · Sensory Sport Utility 4-Door · ProACTIVE Sport Utility 4-Door |
| Federal record | 2 recalls · 9 complaints · 98 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 QX80 manual
03 / ContentsSections in the manual
- Quick Lookups 895
- General Information 1,451
- Accessories & Equipment 9,249
- Heating, Ventilation & A/C (HVAC) 449
- Body & Frame 1,850
- Maintenance 27
- Brakes 2,041
- Restraints 5,000
- Drivelines & Axles 201
- Steering 442
- Electrical 3,844
- Suspension 570
- Engine Mechanical 305
- Transmission 731
- Engine Performance 2,401
- Front Hub And Bearing Bolts 90
- Rear Hub And Bearing Bolts 90
04 / Known issuesRecalls on federal record for the 2021 QX80
- Fuel System, Gasoline — delivery › fuel pump › control/drive module · 21V373000Fuel pump failure can cause an engine stall, increasing the risk of a crash.
- Back Over Prevention — display function · 21V599000A rear-view camera that does not display an image reduces the driver's rear view, increasing the ris.
Owners have filed 9 complaints and INFINITI has issued 98 technical service bulletins for the 2021 QX80. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 QX80 manual
Is this manual specific to the 2021 QX80?
Yes. It is the OEM manual matched to the 2021 model year, covering the 5.6L V8 across the Premium Select Sport Utility 4-Door, Luxe Sport Utility 4-Door, Sensory Sport Utility 4-Door, ProACTIVE Sport Utility 4-Door trims. Specifications and procedure sequences are the ones INFINITI published for this year.
What 2021 QX80 problems does it help with?
2 recalls are on federal record for the 2021 QX80, covering fuel system, gasoline, back over prevention. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by INFINITI dealers.
Does it include 2021 QX80 wiring diagrams?
Yes — the complete wiring diagrams for the 2021 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther QX80 years and 2021 INFINITI models
2024 QX80 · 2023 QX80 · 2022 QX80 · 2020 QX80 · 2019 QX80 · 2018 QX80 · 2017 QX80 · 2016 QX80 · 2015 QX80 · all 11 years
2021 INFINITI Q50 · 2021 INFINITI Q60 · 2021 INFINITI QX50 · 2021 INFINITI QX60 · every 2021 model