Mercedes-Benz GL-Class: System self-test - mbrace - Features - Stowing and features - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: System self-test

After you have switched on the ignition, the system carries out a self-diagnosis.

WARNING A malfunction in the system has been 
A malfunction in the system has been detected if one of the following conditions occurs:
the indicator lamp in the SOS button does not light up during the system selfdiagnosis.
the indicator lamp in the Assistance button does not light up during Roadside
Assistance button does not light up during the system self-diagnosis.
The indicator lamp in the button does not light up during selfdiagnosis information button does not light up during selfdiagnosis of the system.
the indicator lamp in the SOS button, or  information button continues to Roadside Assistance button or be lit red information button continues to be lit red after the system self-diagnosis.
The Tele Aid Inoperative or Tele Aid
Not Activated message appears in the multifunction display after the system selftest.
If a malfunction is indicated as outlined above, the system may not operate as expected. In the event of an emergency, assistance must be summoned by other means.
Have the system checked at the nearest authorized Mercedes-Benz Center or contact the following service hotlines:
USA: Response Center under
888-990-9007
Canada: Customer Service at
1-888-923-8367

    The mbrace system
    The mbrace system provides different services, e.g.: • automatic and manual emergency call • Roadside Assistance call • MB Info call To adjust the volume during an mbrace call, proceed a ...

    Emergency call
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