2021 INFINITI QX50 Service and Repair Manual

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Factory-Grade Data

2021 INFINITI QX50 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Pure Sport Utility 4-Door
  • Essential Tech Sport Utility 4-Door
  • Luxe Sport Utility 4-Door
  • Autograph Sport Utility 4-Door
  • Sensory Sport Utility 4-Door
  • Essential Sport Utility 4-Door
  • Essential ProASSIST Sport Utility 4-Door

Engines covered

  • 2.0L 1997CC l4 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2021 INFINITI QX50 Recalls & Complaints

NHTSA #25V43700027/06/2025Component: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Nissan North America, Inc. (Nissan) is recalling certain 2021-2024 Rogue, 2019-2020 Altima, 2019-2022 Infiniti QX50, and 2022 Infiniti QX55 vehicles equipped with 3-cylinder 1.5L or 4-cylinder 2.0L va

Consequence

Engine failure increases the risk of a crash. A bearing failure may cause a breach in the engine blo

Remedy

Dealers will reprogram the engine control module (ECM) software, free of charge. Owner letters were

NHTSA #21V40200027/05/2021Component: SUSPENSION:REAR:AXLE:SPINDLE

Nissan North America, Inc. (Nissan) is recalling certain 2020 Nissan Murano, INFINITI QX60, 2021 Nissan GT-R, INFINITI QX50, and Q50 vehicles. The front steering knuckle or rear axle housing may have

Consequence

The steering knuckle or rear axle could deform upon impact, such as from hitting a curb, resulting i

Remedy

Dealers will inspect and replace the front steering knuckle and rear axle housing, as necessary, fre

TSB #11031720

CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement Certification Label or VIN Plate/Label may be needed. HINT: Certification Label = FMVSS (Federal Motor Vehi

TSB #11024397

IF YOU CONFIRM The client states that either the rear hatch is inoperative, or the rear hatch closes after opening only a small amount, AND DTC B2426-23 for SPINDLE SENSOR LH and/or DTC B2427-23 for SPINDLE SENSOR RH is stored, AND/OR There

TSB #11014469

AEB WARNING LIGHT IS ON WITH WARNING MESSAGES DISPLAYED ON COMBINATION METER APPLIED VEHICLES: 2015-2024 Q50 (V37) 2015-2018 Q50 Hybrid (HV37) 2017-2022 Q60 (CV37) 2015-2019 Q70 (Y51) 2015-2018 Q70 Hybrid (HY51) 2019-2024 QX50 (J55) 2022-20

TSB #11009064

DTC B00A0-00 STOREIF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND OCS zero point reset cannot be performed, (continued on the next page)D

TSB #11006993

FALSE ACTIVATION OF AEB OR FCW APPLIED VEHICLES: 2021-2022 QX50 (J55) APPLIED DATES: Built on or before August 08, 2022 APPLIED SYSTEMS: Only vehicles equipped with Electronic Power Steering IF YOU CONFIRM The customer states they have expe

TSB #11006966

TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION SERVICE INFORMATION The Telematics Control Unit (TCU) has the ability to send an automatic collision notification when the vehicle is involved in an accident. Once an auto

TSB #11006964

DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC APPLIED SYSTEMS: Vehicles equipped with Telematics SERVICE INFORMATION CONSULT has been updated to allow DTC B2E01-96 for Internal battery to be cleared in the Telematics Control Unit

TSB #11006962

AV CONTROL UNIT REPLACEMENT PROCESS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. IF YOU CONFIRM The AV control unit needs to be replaced. ACTION 1. Read and save

Showing the 8 most recent of 126 technical service bulletins on file with NHTSA.

20230905Component: POWER TRAIN:AXLE ASSEMBLYCrash reported1 injured

The contact owned a 2021 Infiniti QX50. The contact stated that while driving at 25 MPH, he collided with another vehicle on the rear driver's side of the vehicle. As a result, the vehicle was thrust

20260518Component: ELECTRICAL SYSTEM

The vehicle has experienced ongoing electrical and safety-system related malfunctions shortly after being purchased as an INFINITI Certified Pre-Owned vehicle in April 2025. The issues initially inclu

20260518Component: UNKNOWN OR OTHER

The vehicle has experienced ongoing electrical and safety-system related malfunctions shortly after being purchased as an INFINITI Certified Pre-Owned vehicle in April 2025. The issues initially inclu

20260515Component: ELECTRICAL SYSTEM

I purchased my vehicle 4.25. soon after I noticed lights flickering. I was notified shortly after my car was part of the major recall. I brought it in, they said no engine bearings, car is ok, they di

20260515Component: LANE DEPARTURE: WARNING

I purchased my vehicle 4.25. soon after I noticed lights flickering. I was notified shortly after my car was part of the major recall. I brought it in, they said no engine bearings, car is ok, they di

Showing the 5 most serious of 53 complaints filed with NHTSA.

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