Theft deterrent locking systems, Immobilizer, Ata (anti-theft alarm system) – Mercedes-Benz CLS-Class 2012 Owners Manual User Manual
Page 71: Safety

X
To activate/deactivate: activate or
deactivate PRE-SAFE
®
Brake in the on-
The Ä symbol appears in the
multifunction display as long as the HOLD
function is not activated (
On vehicles with Active Parking Assist, the
Ä symbol is displayed when
transmission position
P is selected or if you
drive faster than 22 mph(35 km/h).
For PRE-SAFE
®
Brake to assist you when
driving, the radar sensor system must be
switched on (
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at slow speeds where there is no
visible damage to the front of the vehicle.
Theft deterrent locking systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
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.
X
To activate with the SmartKey: remove
the SmartKey from the ignition lock.
X
To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X
To deactivate: switch on the ignition.
i
The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in
USA) or 1-800-387-0100 (in Canada).
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R
a door
R
the vehicle with the mechanical key
R
the trunk lid
R
the hood
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i
If the alarm stays on for more than 30
seconds, the emergency call system
mbrace (USA only) or TELE AID (Canada
only) initiates a call to the Customer
Assistance Center automatically. The
emergency call system initiates the call
provided that:
R
you have subscribed to the mbrace/
TELE AID service.
R
the mbrace/TELE AID service has been
activated properly.
R
the required mobile phone, power supply
and GPS are available.
X
To arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp : flashes. The alarm
system is armed after approximately 15
seconds.
X
To deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.
Theft deterrent locking systems
69
Safety
Z