Steer control, Theft deterrent locking system, Immobilizer – Mercedes-Benz 2013 M Class User Manual
Page 77: Ata (anti-theft alarm system), Safety

page 207). On vehicles with
Active Parking Assist, the Ä symbol is
displayed when
P is engaged or you are
driving faster than 22 mph (35 km/h).
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 low speeds where there is no
visible damage to the front of the vehicle.
STEER CONTROL
i
Observe the "Important safety notes"
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilization.
This steering assistance is provided in
particular if:
R
both right wheels or both left wheels are on
a wet or slippery road surface when you
brake
R
the vehicle starts to skid
If ESP
®
is malfunctioning, you will not receive
steering support from STEER CONTROL.
Power steering will, however, continue to
function.
Theft deterrent locking system
Immobilizer
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.
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.
Anyone can start the engine if a valid
SmartKey has been left inside the vehicle.
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 the
USA) or 1-800-387-0100 (in Canada).
ATA (anti-theft alarm system)
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 switch off using the SmartKey:
unlock the vehicle with the SmartKey.
or
X
Insert the SmartKey into the ignition lock.
X
To switch off using KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or
X
Press the Start/Stop button on the
dashboard. The SmartKey must be inside
the vehicle.
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
Theft deterrent locking system
75
Safety
Z