2025 Audi Digital Key Sharing Problem TSB 2079823/1

Owners of certain 2025 Audi models may encounter an Audi digital key sharing issue where they are unable to share their digital key (mobile device key) with other people. While the digital key may function correctly on the main device, the crucial "Share digital key" function within the myAudi app appears deactivated. This problem, detailed in Audi Technical Service Bulletin (TSB) 2079823/1, affects various aspects of vehicle access control and online services.

This TSB, released on October 30, 2025, addresses the underlying causes and provides a comprehensive service procedure to reactivate the sharing functionality, ensuring full use of the digital key system.

Symptoms of the Audi Digital Key Sharing Issue

The primary symptom reported by customers is the inability to share their digital key with others. This manifests in several ways, all pointing to a malfunction in the vehicle's online services, registration process, and access control systems:

• Digital Key Sharing Failure: The most direct symptom is that "It is not possible to share the digital key (mobile device key) with other people." While the digital key itself might work for the primary user, the sharing option is unavailable.
• Deactivated "Share digital key" Function: The "Share digital key" function is deactivated in the myAudi app, preventing users from initiating the sharing process.
• Online Services Errors: Issues related to information, navigation, communication, and entertainment online services, particularly during the registration process, may present as error messages or incorrect operation sequences.
• Mobile Device Registration Problems: Problems with central locking and engine start mobile device registration can occur, indicating a broader fault with how the vehicle integrates with mobile devices for key functions.
• Access Control Malfunctions: The TSB notes functionality issues with door locking mechanisms (including keyless closing), door release (door unlocking with mobile device), and keyless entry, all stemming from the anti-theft protection and start authorization systems.

These symptoms collectively point to a breakdown in the vehicle's ability to properly manage and share digital key functionalities, impacting convenience and intended use.

Important Warnings for Owners

Audi has provided critical advisories regarding the repair process for this Audi digital key sharing issue:

• Digital Key Removal Upon Reset: "If a digital key is already in use, resetting the key user will remove this digital key and it must be set up again!" Owners should be aware that their existing digital key setup will be erased and require re-configuration.
• Deletion Event for Activation: "The 'Share digital key' function is activated via a deletion event. For this purpose, a digital key must already have been set up, deleted again and then set up again." This means a digital key must be initially set up, then intentionally deleted, and finally set up a third time to properly enable the sharing feature.

Diagnosis and Technical Background

Workshop findings confirm that the complaint can be consistently reproduced. The technical background for this Audi digital key sharing issue traces back to previous repairs. Specifically, if the vehicle was updated with the KD2 package, and the instructions for resetting the key user were not followed or not implemented completely, it could lead to the current digital key sharing malfunction. The Electronic Central Electric control unit (diagnostic address 0009), with software version 1306, is implicated in these functionalities.

Repair Procedure Summary

Resolving the Audi digital key sharing issue involves a multi-step process focused on resetting the key user and reactivating the digital key sharing function via the myAudi app. The procedure ensures that all necessary conditions are met for successful digital key management.

1. Ignition Activation: The vehicle's ignition must be switched on using a physical remote control key. This ensures the vehicle's systems are fully active and ready for configuration changes.
2. Digital Key Deletion (If Applicable): If an existing digital key is already configured, it must be deleted first. This is done through the MMI (Multi Media Interface) system by navigating to the "Digital key" menu option, then selecting the "Management" tab, and finally "Main device management." The technician will then select "Remove main device" while the physical key fob is inside the vehicle. A confirmation step is required. It's important to note that this action deactivates digital keys on the main device, and while the customer receives a push notification from the myAudi app, this notification does not affect the subsequent repair steps.
3. Main User Reset and Setup: The main user must be deleted and then set up again. This step is crucial for re-establishing the correct user permissions and digital key associations.
   • With Audi connect activation card (black card): If the customer has their Audi connect activation card, they must bring it to the dealership. The vehicle is then deleted from the myAudi app, added back, and the key user is set up again.
   • Without Audi connect activation card (black card): If the customer does not have their card, the vehicle is deleted from the myAudi app. Then, Audi Digital Business Support (reachable at 800-822-2834) must be contacted to re-add the vehicle and key user. After a short waiting period, the customer will be able to add the digital key to their myAudi app, enabling the sharing function.
4. Digital Key Re-addition: After the key user reset, the digital key must be added again if the customer wishes to use this functionality. This can be done via the myAudi app or by following instructions from an email titled "myAudi – set-up password for your digital key" to start the pairing process. Once successfully re-added, the "Share key" function will become available.

Required Tools or Parts

To perform the repair for the Audi digital key sharing issue, specific items are required:

• Physical Key (Remote Control Key): Essential for activating the vehicle's ignition and for certain steps in the digital key deletion process.
• Audi connect activation card (black card): This card may be required if the customer needs to re-establish their key user profile without contacting Audi Digital Business Support.

Owner Action

If you are experiencing the Audi digital key sharing issue and own a 2025 Audi A5, A6, Q5, or Q6 e-tron, you should contact your authorized Audi dealership. Inform them about the problem with sharing your digital key and reference Technical Service Bulletin (TSB) 2079823/1. Be prepared to bring your physical key and, if available, your Audi connect activation card (black card) to the service appointment. The dealership will perform the necessary key user reset and digital key re-setup procedure.

Warranty Information

Audi states that this TSB 2079823/1 is for informational purposes only and is not applicable to any Audi Warranty. This means that any costs associated with diagnosing or repairing this Audi digital key sharing issue may not be covered under standard warranty terms, and owners should clarify potential charges with their dealership.

NHTSA ID: 11025394