Mercedes-Benz M-Class 2015 Owners Manual - Manual (Page 79)

STEER CONTROL
General information
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 partic-
ular 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.
Important safety notes
i Observe the "Important safety notes" sec-
tion (
Y
page 67).
No steering support is provided from STEER
CONTROL, if:
R ESP ® is malfunctioning.
R
the lighting is faulty.
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. Any-
one 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 star-
ted 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 sys-
tem is armed after approximately
15 seconds.
X
To deactivate using the SmartKey:
unlock the vehicle with the SmartKey.
or
X
Insert the SmartKey into the ignition lock.
X To deactivate using KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or
X
Press the Start/Stop button on the dash-
board. 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
R
the tailgate
R the hood
Theft deterrent locking system
77
Safety
Z