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
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 
Roadside
Assistance button does not light up during
the system self-diagnosis.
• The indicator lamp in the 
information
button does not light up during selfdiagnosis
of the system.
• the indicator lamp in the SOS button,
Roadside Assistance button or
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
See also:
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General notes
USA only:
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference, and
2. this device must a ...