2020 INFINITI QX80 Service & Repair Manual

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The service and repair manual for the 2020 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 year2020
Engines
5.6L V8 — 339 cu in, DOHC
TrimsLimited Sport Utility 4-Door · Luxe Sport Utility 4-Door · Sensory Sport Utility 4-Door · ProACTIVE Sport Utility 4-Door
Federal record1 recall · 10 complaints · 102 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2020 QX80 manual

2020 INFINITI QX80 service manual page 12020 INFINITI QX80 service manual page 22020 INFINITI QX80 service manual page 32020 INFINITI QX80 service manual page 42020 INFINITI QX80 service manual page 52020 INFINITI QX80 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 878
  • General Information 1,437
  • Accessories & Equipment 9,475
  • Heating, Ventilation & A/C (HVAC) 446
  • Body & Frame 1,769
  • Maintenance 14
  • Brakes 2,050
  • Restraints 4,976
  • Drivelines & Axles 609
  • Steering 354
  • Electrical 3,807
  • Suspension 580
  • Engine Mechanical 307
  • Transmission 713
  • Engine Performance 2,398
  • Front Hub And Bearing Bolts 90
  • Rear Hub And Bearing Bolts 90

04 / Known issuesRecalls on federal record for the 2020 QX80

  1. Fuel System, Gasoline — delivery › fuel pump › control/drive module · 21V373000
    Fuel pump failure can cause an engine stall, increasing the risk of a crash.

Owners have filed 10 complaints and INFINITI has issued 102 technical service bulletins for the 2020 QX80. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2020 QX80 manual

Is this manual specific to the 2020 QX80?

Yes. It is the OEM manual matched to the 2020 model year, covering the 5.6L V8 across the Limited 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 2020 QX80 problems does it help with?

1 recall is on federal record for the 2020 QX80, covering fuel system, gasoline. 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 2020 QX80 wiring diagrams?

Yes — the complete wiring diagrams for the 2020 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 2020 INFINITI models

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