# 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 bulletins from NHTSA, as of 2026-10-19.

- [ITB22\-025D](/bulletins/11036441.md), 2026-08-28, Service bulletin: ELECTRICAL SYSTEM. ROARING NOISE FROM THE ENGINE COOLING FAN ASSEMBLY AND THE A/C IS NOT COOLING IF YOU CONFIRM A roaring noise from the engine cooling fan assembly \(engine fan on high not cycling\) is present, and the Air Conditioning \(A/C\) is not cooling. ACTION 1. Check the hardware part number for the IPDM E/R. 2. Replace the IPDM E/R with the part number listed in the PARTS INFORMATION, if applicable. 3. Reconfigure the IPDM E/R, if applicable. IMPORTANT: The purpose of ACTION \(above\) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
- [ITB09\-063C](/bulletins/11031720.md), 2026-04-29, Service bulletin: STRUCTURE:BODY. 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 \(Federal Motor Vehicle Safety Standards\) label. These items may be available from Infiniti by request if certain criteria are met. This bulletin lists the criteria and provides an application form for such replacements. · The “VIN Plate/Label” \(metal plate or vinyl label\) is attached to the instrument panel or body on the driver side at the base of the windshield \(see Figure 1\). · The “Certification Label” \(vinyl adhesive label\) is located on the lower area of the driver side B\-Pillar \(see Figure 1\).
- [ITB21\-021A](/bulletins/11024397.md), 2025-10-21, Service bulletin: STRUCTURE:BODY. 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 is a growling type noise from the rear hatch area when opening/closing the rear hatch. · DTC B2426\-23 for “SPINDLE SENSOR LH” and/or DTC B2427\-23 for “SPINDLE SENSOR RH” may also be stored. HINT: If any DTC other than B2426\-23 and/or B2427\-23 is stored, this bulletin does not apply. ACTION Replace ONLY the spindle unit that is confirmed to be setting one of the DTCs listed above and/or causing the growling noise. Do NOT replace both spindle units when diagnosis leads to replacement of only one. HINT: Rear hatch spindle units are not hydraulic systems. If a rear hatch spindle unit appears to be leaking, this is normal drainage of water \(rain, car wash, condensation\) and design intended water management. Do not replace spindle units for suspected leaking. IMPORTANT: The purpose of ACTION \(above\) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
- [ITB23\-023A](/bulletins/11014469.md), 2025-02-25, Service bulletin: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM. 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\-2024 QX55 \(FJ55\) 2015\-2021 QX60 \(L50\) 2022\-2024 QX60 \(L51\) 2015\-2019 QX60 Hybrid \(L50H\) 2015\-2024 QX80 \(Z62\) SERVICE INFORMATION The AEB system is designed to turn itself OFF during driving conditions \(e.g., rain, snow, fog, etc.\) that obstruct its sensors. This behavior is normal, and no repairs should be performed. When the AEB system performs an intentional shutdown, the customer may state the following: • The ICC stopped working while driving, • The AEB/FEB warning light is ON, or turned ON, while driving \(Figure 1\), • The message “Unavailable Front Radar Obstruction” or “Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner's Manual” has displayed while driving \(Figure 2\). AND • DTC C1A16, C1A16\-97, C2582, or C2582\-97 is the ONLY DTC stored. Figure 1 Figure 2 Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner’s Manual
- [ITB19\-024D](/bulletins/11009064.md), 2024-10-22, Service bulletin: AIR BAGS. 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
- [ITB24\-010](/bulletins/11006993.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. 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 experienced false activation and/or unexpected braking of the Automatic Emergency Braking \(AEB\) or Forward Collision Warning \(FCW\) system, AND There are no related DTCs stored. ACTION Refer to the SERVICE PROCEDURE in this bulletin to: 1. Confirm the current ICC/ADAS 2 part number. 2. Reprogram the ICC/ADAS 2, if applicable.
- [ITB22\-020B](/bulletins/11006966.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. 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 and the TCU must be reset to re\-enable the automatic collision notification function. Some models will store DTC B2E1B\-97 for “Automatic eCAll locked” as “CURRENT” when this function is disabled. This bulletin describes how to reset the TCU after an automatic collision notification has been performed. For models with B2E1B\-97 for “Automatic eCAll locked” set as “CURRENT”, complete the SERVICE PROCEDURE starting on page 2, and then erase DTCs after confirming the TCU condition is “UNLOCK”.
- [ITB22\-017B](/bulletins/11006964.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. 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 \(TCU\). If DTC B2E01\-96 is Current/Active in the TCU, and no additional Current/Active DTCs are present in the TCU, perform the SERVICE PROCEDURE starting on page 2. This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB19\-042E](/bulletins/11006962.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. 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 the VIN. 2. Read and save the configuration. 3. Replace the AV control unit. 4. Reprogram the AV control unit. 5. Configure the AV control unit. 6. Write the VIN to the AV control unit. IMPORTANT: Procedures 4\-6 above must be performed in the order shown below. ORDER OF COMPLETION REPROGRAM AV Control Unit CONFIGURE AV Control Unit WRITE VIN to AV Control Unit Infiniti
- [ITB19\-029E](/bulletins/11006961.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. TELEMATICS \(IVC\) SERVICE INFORMATION Vehicles equipped with factory telematics system HINT: • If the client experiences Wi\-Fi hotspot related concerns only, DO NOT replace the TCU. Have the client contact the AT\&T Support line at 1 \(888\) 719\-7242. • See ITB12\-011 for models built before those listed above. SERVICE INFORMATION The APPLIED VEHICLES are equipped with a wireless communication device called a Telematics Communication Unit \(TCU\). 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. • An Order of Completion table has been provided on the next page that lists the steps required to successfully configure a TCU after it has been replaced. • A CHECK\-OFF SHEET has been provided on page 16. Print and check off steps as they are completed. Staple the completed CHECK\-OFF SHEET to the repair order.
- [ITB21\-025B](/bulletins/11004956.md), 2024-07-19, Service bulletin: ELECTRICAL SYSTEM. DTC C1A17\-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB20\-025C](/bulletins/11004955.md), 2024-07-19, 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.
- [ITB13\-052E](/bulletins/11002539.md), 2024-06-28, Service bulletin: ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB13\-006D](/bulletins/11002537.md), 2024-06-28, Service bulletin: ELECTRICAL SYSTEM. CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB10\-029C](/bulletins/11001653.md), 2024-06-14, 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.
- [ITB19\-013E](/bulletins/11001187.md), 2024-06-07, Service bulletin: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB17\-009H](/bulletins/11001182.md), 2024-06-07, Service bulletin: VISIBILITY/WIPER. WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB13\-007I](/bulletins/11001179.md), 2024-06-07, Service bulletin: VISIBILITY/WIPER. REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB09\-039K](/bulletins/11001177.md), 2024-06-07, Service bulletin: VISIBILITY/WIPER. WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB23\-010E](/bulletins/10251530.md), 2024-03-08, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. Please discard previous versions of ITB23\-010.
- [ITB23\-010D](/bulletins/10249897.md), 2024-02-08, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. HINT: Initially, the Infotainment Software Update Utility will be available only on the CONSULT PC version of ASIST. The Utility will be added to ASIST WEB at a later date. Please discard previous versions of ITB23\-010.
- [ITB23\-009A](/bulletins/10249896.md), 2024-02-08, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. INFOTAINMENT SYSTEM IN RENTAL CARS FREQUENTLY REBOOTS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB22\-014B](/bulletins/10249893.md), 2024-02-08, Service bulletin: ELECTRICAL SYSTEM. ENABLING WIRELESS APPLE CARPLAY® FEATURES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB21\-026C](/bulletins/10249892.md), 2024-02-08, Service bulletin: ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR CLOCK INCORRECT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [ITB21\-023B](/bulletins/10248648.md), 2024-01-09, Service bulletin: POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

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