2025 Audi A4, Q5 HomeLink Buttons Not Working TSB

Audi has released Technical Service Bulletin (TSB) 2076088/1, dated November 19, 2024, to address an issue affecting the HomeLink system in various 2025 Audi models. This bulletin provides a solution for situations where the HomeLink buttons located in the rearview mirror are unresponsive, preventing owners from programming their garage door openers.

Symptoms

Owners of affected 2025 Audi A4, S4, Q5, and SQ5 vehicles may notice that the HomeLink buttons in the rearview mirror are not working. Specifically, the primary symptom is that the "HomeLink buttons in mirror not working" and the "Garage door opener cannot be programmed." When the buttons are pressed, there is no reaction from the system, indicating a communication or software issue rather than a mechanical failure. This directly impacts the convenience and functionality of integrating a garage door opener with the vehicle's system.

Diagnosis / Trigger Conditions

Audi's workshop findings indicate that the root cause of this problem is an "Incorrect Homelink button implementation in the Target data container (ZDC)" for the Vehicle Central Electrical System control module, identified as J519 (Address word 0009). The Target data container (ZDC) is a crucial part of the vehicle's software configuration, and an error within it can lead to system malfunctions. This specific issue means the J519 control module is not correctly processing inputs from the HomeLink buttons.

Repair Procedure Summary

To resolve the HomeLink button malfunction, Audi specifies a software update for the J519 control module. This update involves applying an optimized Target data container (ZDC) to the Vehicle Central Electrical System control module, J519 (address word 0009). Technicians must follow all instructions detailed in TSB 2011732, which covers Software Version Management (SVM) operating instructions.

The update process requires using the SVM action code 09A061. The specific data container numbers involved in the update are as follows:

• A4 models: Old Target Data Container Number 8W1909514J will be updated to New Target Data Container Number 8W1909514K.
• A5 models: Old Target Data Container Number 8W6909514J will be updated to New Target Data Container Number 8W1909514K.
• Q5 models: Old Target Data Container Number 80C909514G will be updated to New Target Data Container Number 80C909514K.

This software update ensures the J519 module correctly interprets signals from the HomeLink buttons, restoring full functionality to the system.

Warranty Information

For vehicles experiencing this issue, warranty claims are handled according to specific Audi guidelines. If the vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. For inventory vehicles, a specific claim type (910), service number (S644), and damage code (0010 Manufacturer's Code: AUN) apply. For other warranty claims, the service number is 9710 and the damage code is 0039. Labor operations for the software update include codes 0151 0010 and 0151 0060, with time stated on the diagnostic protocol. All warranty claims must align with the Audi Warranty Policies and Procedures Manual.

Owner Action

If you own a 2025 Audi A4, S4, Q5, or SQ5 and are experiencing issues with your HomeLink buttons, such as them not responding or being unable to program your garage door opener, you should contact your authorized Audi dealership. Inform them about the symptoms you are experiencing. The dealership technicians will be able to diagnose the issue and perform the necessary software update to the J519 control module as outlined in Audi TSB 2076088/1. This update is crucial for restoring the proper function of your 2025 Audi HomeLink buttons.

Source: NHTSA ID: 11011306