Mercedes-Benz GL450 Operator's Manual page 331

Controls in detail
Useful features
The Tele Aid system is available if
it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection
and cellular air time
vehicle battery power is available
the relevant cellular phone network
and GPS signals are available and pass
the information on to the Response
Center
i
Location of the vehicle on a map is only pos-
sible if the vehicle is able to receive signals from
the GPS satellite network and pass the informa-
tion on to the Response Center.
330
Warning!
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant cellular phone network is not available).
The message Call failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be sum-
moned by other means.
Initiating an emergency call manually
G
1 Cover
2 SOS button
Briefly press on cover 1.
The cover opens.
Press SOS button 2 briefly.
The indicator lamp in SOS button 2
will flash until the emergency call is
concluded.
Wait for a voice connection to the
Response Center.
Close cover 1 after the emergency
call is concluded.