Mercedes-Benz 2008 GL 450 Operator's Manual page 194

Effect
ì
Park position
Shift into park position P only
when vehicle is stopped. The
park position is not intended to
serve as a brake when the vehi-
cle is parked. Rather, the driver
should always set the parking
brake in addition to shifting into
park position P to secure the
vehicle.
If the vehicle's electrical system
is malfunctioning, the automatic
transmission could remain
locked in park position P.
Have the vehicle checked as
soon as possible by an autho-
rized Mercedes-Benz Light
Truck Center.
!
SmartKey:
If you turn off the engine using the SmartKey and
remove the SmartKey from the starter
switch
or
open a front door
the transmission will shift to park position P
automatically.
Keep in mind that turning off the engine with the
SmartKey alone only will automatically shift the
transmission to neutral position N.
!
KEYLESS-GO*:
If you turn off the engine using the KEYLESS-GO
start/stop button and open a front door, the
transmission will shift to park position P
automatically.
Keep in mind that turning off the engine using
the KEYLESS-GO start/stop button alone only
will automatically shift the transmission to
neutral position N.
Controls in detail
Automatic transmission
i
Make it a practice to always shift into park
position P before turning off the engine and
remove the SmartKey from the starter
switch
or
open a front door
or when using KEYLESS-GO*, before turning off
the engine with the start/stop button and open-
ing a front door.
193