2025 Audi A5/Q5/S5/SQ5 Unlock/Lock Issue TSB

Symptoms of the 2025 Audi A5 Unlock Lock Issue

Owners of certain 2025 Audi A5, Q5, S5, and SQ5 models may encounter a specific problem where the vehicle cannot be unlocked or locked through conventional methods. This 2025 Audi A5 unlock lock issue manifests differently depending on the model.

For Audi A5 and S5 vehicles, the key's LED will not flash when a button is pressed near the vehicle. If attempting to lock the vehicle via the app, owners might see the message "Please switch off the ignition," even if the ignition is already off.

Similarly, for Audi Q5 and SQ5 vehicles, the only way to unlock or lock the car might be through the physical door lock cylinder. The key's LED also fails to flash when pressed near the vehicle, and the app may display the "Please switch off the ignition" message when trying to lock the car, despite the ignition being off. This indicates a significant 2025 Audi A5 unlock lock issue.

Conditions for the Unlock/Lock Issue

This Technical Service Bulletin (TSB) 2078793/1 specifically addresses vehicles where a "key user" has already been added and a digital key is actively being used. The problem is linked to the interaction between the vehicle's access control system and the digital key functionality.

Temporary Workaround for Unlocking

If you are experiencing the "57 Vehicle cannot be unlocked or locked" condition, Audi has identified a temporary workaround. To regain the ability to unlock and lock your vehicle using the remote control key, ensure that the device with the digital key installed is outside the vehicle's range (approximately 132 feet or 40 meters). Alternatively, you can switch off the digital key device or its Bluetooth function. After about 15 minutes of no activity from the vehicle (allowing it to enter deep bus sleep), the remote control key should function normally.

Once the vehicle has been successfully unlocked using this method, it can typically be started without any further problems.

Permanent Repair Procedure

The permanent solution for the 2025 Audi A5 unlock lock issue described in TSB 2078793/1 involves replacing the onboard supply control unit, identified as J519. This component is central to the vehicle's access control and anti-theft protection systems. Technicians will perform the replacement of the J519 unit to resolve the persistent unlocking and locking malfunctions.

Important Considerations for Owners

• Applicability: This TSB 2078793/1 is only applicable if the issue can be resolved using the described customer statement and if the digital key is installed. Always verify that the problem can be reproduced with the digital key device.
• Starting Issues: If your vehicle cannot be started even after it has been unlocked, it is crucial to check for any open field campaigns that might be affecting your vehicle.
• Warranty: If your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, meaning the repair costs may not be covered by Audi.

Required Parts and Labor

The primary component requiring replacement for this issue is the onboard supply control unit J519.

For warranty claims related to this TSB 2078793/1, the following codes are used:

• Service Number: 9710
• Damage Code: 0039
• Labor Operations:
  • Remove and install onboard supply control unit: 9710 19xx
  • GFF / Guided Functions: 0150 0060 (labor according to the diagnostic log)

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

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Source: NHTSA ID: 11022647