WenmarOpen by Wenmar Pro

Service bulletin ITB21-031

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10206351
Published by NHTSA2022-01-08
Manufacturer's numberITB21-031
Manufacturer's date2021-12-17
NHTSA componentEQUIPMENT:MECHANICAL

NHTSA's summary

OIL LEAK AT REAR OF TRANSMISSION SERVICE INFORMATION When diagnosing an oil leak at the rear of the transmission on an applied vehicle, follow the SERVICE PROCEDURE in this bulletin to determine if the origin of the leak is at the rear extension seal, or at the pressed-in plug of the propeller shaft sleeve yoke (Figure 1).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
INFINITI QX802019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V4550002026-07-15. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
ITB23-010E2024-03-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active.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.
ITB23-010D2024-02-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active.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.
ITB12-011Q2024-02-08. Service bulletin. TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010C2023-09-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-010B2023-09-08. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB22-043A2023-06-07. Service bulletin. INFOTAINMENT CONTROL UNIT REPLACEMENT SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
ITB23-0102023-04-06. Service bulletin. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES SERVICE INFORMATION When diagnosing an infotainment issue or after replacement of the AV Control Unit, it is necessary to verify the current software version of the AV Control Unit to determine if a software version update is required. Use the vehicle tables in this bulletin to determine the current software version, if the AV Control Unit requires a software version update, and which procedure to use to update the AV Control Unit. The software updates in this bulletin are to address stability improvements and “bug” fixes. IMPORTANT: If the client is experiencing a software related concern, refer to ITB21-011 to verify if the client concern is a hardware or software related issue. If the concern is a software related issue, review the information in this bulletin to update the AV Control Unit as needed.
ITB21-025A2023-04-04. Service bulletin. 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.
ITB19-024C2023-04-04. Service bulletin. DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
PC882 2020-21 QX2022-06-08. Service bulletin. Wireless Apple CarPlay® Update Voluntary Service Campaign ***** Campaign Summary ***** INFINITI is continuing to conduct a Client Service Initiative (CSI) on certain specific model year 2020-2021 QX80 vehicles that were previously included and subsequently removed and suspended from the initiative under PC839. The previous software update did not fully address the intended concerns. INFINITI is launching a new CSI that will provide clients with a free Infotainment software update, which includes Wireless Apple CarPlay®. The CSI will be available until June 30, 2022. The update will bring the vehicle’s software to current production level, improve system overall performance, and enable client’s use of 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. Certain Model Year 2020 and 2021 INFINITI vehicles are already equipped with Apple CarPlay® to enhance iPhone users’ experience with iOS13 and later, but they currently require a USB cord connection to an iPhone to use. The update eliminates the need to remove the iPhone from one’s 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. PC882 • 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 ITB22-013 to update the following software: • Enablement of Wireless Apple CarPlay® • Stability improvements and “bug” fixes