WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Bulletins, newest first
ITB23-0032023-02-04. Service bulletin. STRUCTURE. NOISE FROM MOONROOF IF YOU CONFIRM While driving with the moonroof closed, an abnormal noise (popping, cracking, squeaking) is present from the moonroof. HINT: The noise may be intermittent and can be from one or both sides of the moonroof. ACTION Follow the SERVICE PROCEDURE outlined in this bulletin to add a shim to the driver (LH) side and passenger (RH) side moonroof guide mounting bolts.
ITB23-0022023-02-04. Service bulletin. ELECTRICAL SYSTEM. MISSING OR CORRUPTED MAP DATA IF YOU CONFIRM Client states the error screen, shown in Figure 1, appears when using navigation. ACTION Follow the SERVICE PROCEDURE in this bulletin to download the map data from the ASIST Downloader, and then update the AV Control Unit with the map data.
ITB22-020A2023-02-04. 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.
ITB22-017A2023-02-04. Service bulletin. ELECTRICAL SYSTEM. DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB22-0432023-01-10. Service bulletin. ELECTRICAL SYSTEM. INFOTAINMENT CONTROL UNIT REPLACEMENT SERVICE INFORMATION SERVICE INFORMATION When replacing an AV control unit (Infotainment Control Unit), for any reason, all three steps below are required. If all three steps are not completed on vehicles equipped with a TCU, the Over The Air (OTA) updates will not work, and other functions may be inoperative. HINT: Not all APPLIED VEHICLES are OTA-update capable. 1. Reprogram the AV control unit. 2. Configure the AV control unit. 3. Write the VIN to the AV control unit. IMPORTANT: Steps 1-3 above must be performed in the sequential order shown below.
ITB22-0422023-01-10. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH DTC P0448 STORED IN THE ECM IF YOU CONFIRM The MIL is ON with DTC P0448 (VENT CONTROL VALVE) stored in the ECM. ACTION See Repair Overview on page 2 for diagnostic procedure.
ITB21-008A2023-01-10. Service bulletin. SEATS. FRONT DRIVER AND/OR PASSENGER SEAT WILL NOT MOVE FORWARD This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB22-0412022-12-06. Service bulletin. POWER TRAIN. DRIVE SHAFT BOOT SERVICE INFORMATION SERVICE INFORMATION If a Drive Shaft (Axle Shaft) Boot on an APPLIED VEHICLE is found to be leaking grease, AND There is no abnormal noise or obvious CV Joint risk due to water intrusion and/or complete grease loss, check for REPAIR KIT-DUST BOOT (cv Joint Boot Kit) availability. • If there is a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, do NOT replace the axle. Install a new boot kit following the procedure in the ESM. o Refer to the ESM: TRANSMISSION & DRIVELINE > FRONT AXLE > REMOVAL AND INSTALLATION > FRONT DRIVE SHAFT BOOT o If the complete axle (drive shaft) is replaced when only a new boot is required, the over-repair may be charged back to the retailer. • If there is NOT a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, refer to the ESM for further diagnostic information. IMPORTANT: When servicing vehicles with staked axle nuts, refer to ITB21-002 to prevent Drive Shaft thread damage.
ITB12-072I2022-12-06. Service bulletin. POWER TRAIN. ABNORMAL NOISE, VIBRATION AND/OR BINDING FEELING FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB19-029D2022-11-12. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS (IVC) SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
ITB22-025A2022-10-07. Service bulletin. ENGINE AND ENGINE COOLING; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. ROARING NOISE FROM THE ENGINE COOLING FAN ASSEMBLY AND THE A/C IS NOT COOLING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB13-008C2022-10-07. Service bulletin. POWER TRAIN. CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB12-072H2022-08-26. Service bulletin. POWER TRAIN. INFINITI AWD MODELS; ABNORMAL NOISE, VIBRATION AND/OR JUDDER FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB21-026A2022-08-26. 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.
ITB21-023A2022-08-26. 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.
ITB17-001D2022-08-26. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT OIL SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB22-0202022-06-03. 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 (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 (Automatic eCAll locked) set as “CURRENT”, complete the SERVICE PROCEDURE starting on page 2, and then erase DTCs after confirming TCU condition is “UNLOCK”.
ITB22-0172022-06-03. Service bulletin. ELECTRICAL SYSTEM. B2E01-96 (INTERNAL BATTERY) DTC STORED AS CURRENT IN IVC SERVICE INFORMATION CONSULT has been updated to allow DTC B2E01-96 (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 PROCEURE starting on page 2.
ITB22-0152022-06-03. Service bulletin. FUEL SYSTEM, GASOLINE. SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire “Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly” (fuel pump assembly). The fuel level sensor can be replaced separately. • P0460 (FUEL LEV SEN SLOSH) • P0461 (FUEL LEVEL SENSOR) • P0462 (FUEL LEVL SEN/CIRC) • P0463 (FUEL LEVL SEN/CIRC) NOTE: Warranty claims referring to fuel level issues that result in the replacement of the entire fuel pump assembly will be charged back.
ITB19-024B2022-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; AIR BAGS. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
REV 4 - PC839 202022-05-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. REMINDER: Wireless Apple CarPlay® Update Voluntary Service Campaign UPDATE March 17, 2022 Please discard earlier versions of this bulletin. The announcement from February 24, 2021 has been updated to highlight the following important information: • REMINDER: This client service initiative as a free infotainment software update (PC839) will expire in two weeks March 31, 2022. • Beginning April 1, 2022 the software update will be available as a client payable software service upgrade should a client request the wireless Apple CarPlay® update. • INFINITI continues to make progress to improve the software with Wireless Apple CarPlay. More information will be provided as soon as possible.
ITB22-0142022-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. ENABLING WIRELESS APPLE CARPLAY® FEATURES SERVICE INFORMATION To enable wireless use of current Apple CarPlay® features, follow the SERVICE PROCEDURE in this bulletin. NOTE: Depending on the software version, the AV control unit may need to be updated. Perform steps 1-4 to check the software version.
ITB21-022D2022-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, AND QX50, INFOTAINMENT SOFTWARE UPDATE AND WIRELESS CARPLAY CONFIGURATION Client Satisfaction Initiative ID # PC839 is no longer active. • Repair orders opened after this bulletin’s published date are no longer eligible for reimbursement under ID # PC839. • Discard all previous versions of ITB21-022.
ITB21-022C2022-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. CLIENT SATISFACTION INITIATIVE 2020-2021 Q50, Q60, AND QX50, 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.
ITB21-020A2022-05-20. Service bulletin. FUEL SYSTEM, GASOLINE. FUEL AND/OR OIL SMELL IS PRESENT WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

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