2021 INFINITI Q50 Service and Repair Manual

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Factory-Grade Data

2021 INFINITI Q50 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

  • Sensory Sedan 4-Door
  • Red Sport 400 Sedan 4-Door
  • Hybrid Sedan 4-Door
  • Luxe Sedan 4-Door
  • Sport Plus Sedan 4-Door
  • Red Sport I-Line ProACTIVE Sedan 4-Door
  • Pure Sedan 4-Door
  • Signature Edition Sedan 4-Door
  • Essential Tech Sedan 4-Door
  • Sport Tech Sedan 4-Door
  • Red Sport I-Line Sedan 4-Door

Engines covered

  • 3.0L 2997CC V6 GAS DOHC Turbocharged
  • 3.5L 3498CC V6 FULL HYBRID EV-GAS (FHEV) DOHC Naturally Aspirated

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 Q50 Recalls & Complaints

NHTSA #21V23400004/04/2021Component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTW

Nissan North America, Inc. (INFINITI) is recalling certain 2021 INFINITI Q50 and Q60 vehicles. After detecting rapid acceleration, the Engine Control Module (ECM) may incorrectly reduce engine power

Consequence

A lack of fuel may cause an engine stall, increasing the risk of a crash.

Remedy

INFINITI will notify owners, and dealers will reprogram the ECM software, free of charge. The recal

NHTSA #21V59900002/08/2021Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Nissan North America, Inc. (Nissan) is recalling certain 2021 Infinity Q50, Q60, and QX80 vehicles. A software error may deactivate the audio/video control unit screen, preventing the rear-view image

Consequence

A rear-view camera that does not display an image reduces the driver's rear view, increasing the ris

Remedy

Dealers will update the control unit software, free of charge. Owner notification letters were mail

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 #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 #11014066

TURBOCHARGER REPLACEMENT PROCEDURE APPLIED ENGINES: VR30DDTT IF YOU CONFIRM One or both turbochargers require replacement. ACTION 1. Replace the affected turbocharger(s). Refer to the SERVICE PROCEDURE in this bulletin for the updated proce

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 #11006990

DTC B2E1B-06 (AUTOMATIC ECALL) STORED AS CURRENT IN THE IVC APPLIED VEHICLES: 2020-2024 Q50 (V37) 2020-2022 Q60 (CV37) 2020-2024 QX80 (Z62) SERVICE INFORMATION The APPLIED VEHICLES that come equipped with a factory installed SOS switch, loc

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 111 technical service bulletins on file with NHTSA.

20220410Component: VEHICLE SPEED CONTROLCrash reported

I purchased a new 2021 Infiniti Q50 from Infiniti of Cool Springs on September 28, 2020. There was an incident on January 13, 2022 due to a manufacturer defect that caused my car to accelerate on itâ€

20220410Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGCrash reported

I purchased a new 2021 Infiniti Q50 from Infiniti of Cool Springs on September 28, 2020. There was an incident on January 13, 2022 due to a manufacturer defect that caused my car to accelerate on itâ€

20220410Component: FORWARD COLLISION AVOIDANCE: WARNINGSCrash reported

I purchased a new 2021 Infiniti Q50 from Infiniti of Cool Springs on September 28, 2020. There was an incident on January 13, 2022 due to a manufacturer defect that caused my car to accelerate on itâ€

20260209Component: WHEELS:RIM

The contact owns a 2021 Infinity Q50. The contact stated that the vehicle was recently purchased from a dealer. When the vehicle was purchased, the tires were replaced. The vehicle was later taken to

20240809Component: AIR BAGS

The contact owns a 2021 Infiniti Q50. The contact stated that while driving at undisclosed speeds, the air bag warning light illuminated. The local dealer was not contacted. The vehicle was not diagno

Showing the 5 most serious of 6 complaints filed with NHTSA.

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