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Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
With KEYLESS-GO*
Press the KEYLESS-GO start/stop
button ( page 43) on the starter
switch once.
The engine is turned off.
Open the driver's door.
Deactivating
With the SmartKey
Turn the SmartKey in the starter switch
to position 2 ( page 41).
With KEYLESS-GO*
Switch on the ignition ( page 42).
i
Starting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the
vehicle's battery is charged), the system is not
operational. Contact an authorized
Mercedes-Benz Light Truck Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the tailgate
the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
Safety and Security
Anti-theft systems
The alarm system will also be triggered
when
the vehicle is opened with the mechan-
ical key, see "Unlocking the vehicle"
( page 493)
a door is opened from the inside, see
"Opening the doors from the inside"
( page 118)
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is
initiated automatically by the Tele Aid system
( page 327) provided that the Tele Aid service
was subscribed to and properly activated, and
that necessary cellular service and GPS cover-
age are available.
Arming the alarm system
The alarm system is armed after you have
locked the vehicle with the SmartKey or
SmartKey with KEYLESS-GO*.
The alarm system indicator lamp is located
to the lower left of the hazard warning
flasher.
105
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