Anti-Theft Alarm System; Indicator Lamp - Mercedes-Benz 2009 M-Class Operator's Manual

Anti-theft alarm system

Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:
a door
R
the tailgate
R
the hood
R
The alarm will stay on even if the activating
element (a door, for example) is immediately
closed.
The alarm system will also be triggered when
the vehicle is opened with the mechanical
R
key
a door is opened from the inside
R
To cancel the alarm after it has been
triggered, see "Canceling the
alarm" ( Y page 81).
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 provided that you have subscribed
to the Tele Aid service and that it has been
activated properly, and that the necessary
mobile phone, power supply and GPS
coverage are available.

Indicator lamp

1
X
Arming: Lock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash three times to
indicate that the vehicle is locked. Indicator
lamp flashes to indicate that the alarm
1
system is armed.
i If the turn signal lamps do not flash three
times, a door or the tailgate may not be
properly closed.
Close the respective element and lock the
vehicle again.
X
Disarming: Unlock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash once to indicate
that the alarm system is disarmed.
Safety and security
Anti-theft systems
i The vehicle will lock and the alarm system
will rearm automatically again after
approximately 40 seconds unless you open
a door or the tailgate.
Canceling the alarm
To cancel the alarm, do one of the following:
X
Insert the SmartKey in the starter switch.
X
Press button or
k j
SmartKey.
In vehicles with KEYLESS-GO:
X
Grasp an outside door handle.
The SmartKey must be within 3 ft (1 m) of
the vehicle.
X
Press the KEYLESS-GO start/stop button.
The SmartKey must be inside the vehicle.
on the
Z
81