How to Reset Audi Sos Malfunction

If your Audi displays an "SOS Malfunction" message, it means the vehicle's emergency call system has encountered an issue. This system is part of Audi connect services and includes automatic emergency calls in case of a crash. Here are steps you can follow to reset or resolve the issue:

1. Check for Temporary System Glitches
   Sometimes the warning may appear due to a temporary glitch after a battery replacement or software update. Try restarting the vehicle and letting it sit for a few minutes with the ignition off, then start it again.

2. Perform a Soft MMI Reset
   Many SOS-related functions are tied to the MMI system. You can try resetting it:

   • Press and hold the power button on the MMI (usually located near the volume knob) for about 10 seconds.

   • The screen should go black and restart automatically.

   • Check if the SOS malfunction warning disappears.

3. Check Your Audi Connect Subscription
   An expired or inactive Audi Connect subscription might trigger this error. Log into your myAudi account or use the myAudi app to check the status. Reactivate the subscription if needed.

4. Check the Overhead SOS Button LED

   • If the red LED next to the SOS button on the roof console is constantly lit, it indicates a fault.

   • If it's flashing, the system might be trying to establish a connection.

   • If it's off, the system may be disabled or without power.

5. Inspect the Fuse and Battery
   A low voltage battery or blown fuse related to the control module can cause the SOS system to malfunction. Have a mechanic check:

   • The car’s main battery voltage.

   • The fuse box for the SOS/Telematics control unit.

6. Use an OBD2 Scanner

   • Connect an OBD2 diagnostic tool.

   • Scan for fault codes (such as B123B, U0155, or others related to telematics control).

   • Clear the fault codes if possible and see if the warning disappears.

7. Software Update or Dealer Assistance
   If the problem persists, it may require a software update or a reset of the control unit (J949 - Emergency Call Module). This can typically only be done at an Audi dealership.

Important Tips:

• Do not attempt to remove or disconnect the SOS module yourself, as it's part of the vehicle’s safety system.

• If your car is under warranty, Audi should fix this issue free of charge.

• Always ensure your battery is healthy, especially after jump-starting or battery replacement.

This guide applies to models such as Audi A4, A6, Q5, Q7, and others equipped with the Audi Connect SOS feature.