Anti-theft systems, Immobilizer, Anti-theft alarm system – Mercedes-Benz 2010 CL Class User Manual

Page 67: Safety and security

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Anti-theft systems

Immobilizer

The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.

Activating

X

With SmartKey: Remove the SmartKey

from the starter switch.

X

With KEYLESS-GO: Turn off the engine and

open the driver’s door.

Deactivating

X

Switch on the ignition.

i

Starting the engine will also deactivate

the immobilizer.
In the event that the engine cannot be
started (yet the vehicle’s battery is
charged), the system is not operational.
Contact an authorized Mercedes-Benz
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

R

a door

R

the trunk

R

the hood

The alarm will stay on even if the activating
element, a door, for example, is closed
immediately.
The alarm system will also be triggered when

R

the vehicle is opened with the mechanical
key

R

a door is opened from the inside

To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(

Y

page 66).

i

If the alarm stays on for more than

30 seconds, the Tele Aid system initiates a
call to the Customer Assistance Center
automatically. The Tele Aid system will
initiate the call provided that

R

you have subscribed to the Tele Aid
service

R

the Tele Aid service has been activated
properly

R

the necessary mobile phone, power
supply and GPS coverage are available

X

Arming: Lock the vehicle with the

SmartKey or with KEYLESS-GO.
The turn signal lamps flash three times and
an acoustic warning sounds three times to
indicate that the vehicle is locked. Indicator
lamp : flashes to indicate that the alarm
system is armed.

i

If the turn signal lamps do not flash three

times and the acoustic warning does not
sound three times, a door or the trunk may
not be properly closed.
Close the respective element.

X

Disarming: Unlock the vehicle with the

SmartKey or with KEYLESS-GO.
The turn signal lamps flash once and an
acoustic warning sounds once to indicate
that the alarm system is disarmed.

Anti-theft systems

65

Safety and security

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