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Service bulletins for the 2021 Infiniti QX50

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

127 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
ITB14-011F2022-02-10. Service bulletin. ELECTRICAL SYSTEM; ENGINE. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB10-029B2022-02-09. Service bulletin. ELECTRICAL SYSTEM. CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-0262022-01-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. SOFTWARE UPDATE FOR CLOCK INCORRECT IF YOU CONFIRM One or more of the following occurs: • The clock resets to 1:00. • The clock changes 4-6 hours ahead of actual time. • Set Clock Manually icon is grayed out. ACTION 1. Confirm that the Infotainment software version is not 4710. See Check Software Version on page 3. 2. If the Infotainment software version is not 4710, perform Update AV Control Unit starting on page 5. 3. Manually set the clock time and date to complete the infotainment update.
REV 1 - PC839 202021-12-08. Service bulletin. ELECTRICAL SYSTEM. Wireless Apple CarPlay® Update Voluntary Service Campaign UPDATE October 18, 2021 Please discard earlier versions of this bulletin. The announcement from October 6, 2021 has been updated to highlight the following important information: • Retailers should ensure they are using the most recent version of the CONSULT III operating system. • Ensure that the technician has configured the audio/IT unit as instructed beginning with step 27 of the Technical Service Bulletin (TSB). • Retailers should assist every customer with (1) removing ALL paired phones,(2) pairing their phone with the vehicle again before they leave the dealership, and (3) verifying Wireless CarPlay is working for iPhone users (See page 2 of this announcement) • Ensure that YES is selected on the vehicle when prompted to deactivate Wi-Fi to use Wireless CarPlay (provide owners a copy of the instructions on page 6 of this announcement) Notify owners that some vehicles may have initial location accuracy concerns after the software update. This is not a unique issue for INFINITI and will self-correct within a few days.(see page 7) Please print a copy of the phone pairing instructions (page 6) for the owner to use with pairing other phones back to their vehicle.
PC839 2020-21 Q52021-12-08. Service bulletin. ELECTRICAL SYSTEM. Wireless Apple CarPlay® Update Voluntary Service Campaign ***** Campaign Summary ***** INFINITI is conducting a Client Service Initiative to provide a free Infotainment software update, which includes Wireless Apple CarPlay® until March 31, 2022. The update will bring the vehicle’s software to current production level, improve system overall performance, and enable you to use Apple CarPlay® wirelessly! For more information on Apple CarPlay®, please refer to: INFINITI Apple CarPlay® Features & FAQs INFINITI’s InTouch system is designed to improve the driving experience. Your vehicle is already equipped with Apple CarPlay® to enhance your iPhone user experience with iOS13 and later, but it currently requires a USB cord connection to your phone to use. The CarPlay® dashboard takes things you want to do with your iPhone while driving and puts them right on the vehicle’s built-in display, eliminating the need to remove the iPhone from your pocket or bag. ***** What Retailers Should Do ***** 1. Verify if vehicles are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History – Open Campaign I.D. PC839 • New vehicles in retailer inventory can also be identified by using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). • Refer to IPSB 15-286 for additional information 2. Retailers should ensure any applicable vehicle has the latest AV control unit software installed, and use ITB21-022 to update the following software: • Enablement of Wireless Apple CarPlay® • Stability improvements and “bug” fixes 3. Retailers should submit the applicable warranty claim for the action performed so it can be closed on Service Comm and release the vehicle.
ITB21-022A2021-11-08. Service bulletin. ELECTRICAL SYSTEM. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, QX50, AND QX80; INFOTAINMENT SOFTWARE UPDATE AND WIRELESS CARPLAY CONFIGURATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB21-0222021-11-08. Service bulletin. ELECTRICAL SYSTEM. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, QX50, AND QX80; INFOTAINMENT SOFTWARE UPDATE AND WIRELESS CARPLAY CONFIGURATION SERVICE INFORMATION Infiniti is providing a free infotainment software update, including Wireless Apple CarPlay®, until March 31, 2022. This upgrade will bring the vehicle’s infotainment software up to current production level, improve system overall performance, and enable wireless use of current Apple CarPlay® features. RETAILER RESPONSIBILITY It is the retailer’s responsibility to check SERVICE COMM using Service Comm I.D. PC839 for the status on each vehicle falling within the range of this client satisfaction initiative which for any reason enters the service department. If a vehicle subject to this client satisfaction activity was part of a retailer trade, the letter associated with that vehicle should be forwarded to the appropriate retailer for upgrade completion.
ITB20-025B2021-08-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:BRAKING; ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB17-055B2021-07-10. Service bulletin. ELECTRICAL SYSTEM. INFINITI; INTELLIGENT KEY IDENTIFICATION AND REGISTRATION TIPS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB16-012D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY BUTTONS INOPERATIVE BUT REQUEST SWITCHES WORK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB15-026D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-029B2021-05-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TELEMATICS (IVC) SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB20-021B2021-04-13. Service bulletin. ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-024A2021-04-13. Service bulletin. ELECTRICAL SYSTEM. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB16-006A2021-04-08. Service bulletin. ELECTRICAL SYSTEM. INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB20-026a2021-02-06. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB20-025a2021-02-06. Service bulletin. ELECTRICAL SYSTEM. DTC B2724-23 AND/OR C1B56-04 STORED, AND/OR RAB ERROR MESSAGE OR WARNING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-029a2021-02-06. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS (IVC) SERVICE INFORMATION See ITB12-011 for models built before those listed above for a different Service Procedure. SERVICE INFORMATION The Applied Vehicles are equipped with a wireless communication device called a Telematics Communication Unit (TCU). With an active Infiniti InTouch Services™ subscription the TCU communicates with the Infiniti Data Center to provide various security and convenience services. This bulletin contains important service procedures that must be performed properly in order to set-up and maintain the telematics system for the Applied Vehicles. • A table has been provided on the next page that lists the model and year-specific steps required to successfully configure a TCU after it has been replaced. • A check OFF sheet has been provided on page 11 to print and check off steps as they are performed. Please staple the completed Check OFF Sheet to the repair order.
ITB20-0262020-12-08. Service bulletin. ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS. 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 automatic collision notification is performed, the function becomes disabled. The TCU must be reset to re-enable the automatic collision notification function. This bulletin describes how to reset the TCU after an automatic collision notification has been performed.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.