Mercedes-Benz GL-Class: Operating the on-board computer
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock.
You can control the multifunction display and the settings in the on-board computer using the buttons on the multifunction steering wheel.


Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
DISTRONIC activated:
One or two segments in the set speed range
light up.
DISTRONIC detects a vehicle in front:
T ...
Multifunction display
Values and settings as well as display
messages are shown in the multifunction
display.
1 Trip odometer
2 Odometer
3 Transmission position
4 Status bar with outside temperature or
speed
For ...
See also:
Turn Signal Indicator
The vehicle has a turn signal indicator on the mirror. An arrow on the mirror
flashes in the direction of the turn or lane change. ...
Setting the side air vents
► To open/close: turn thumbwheel 3 to the
left or right.
Side window defroster vent 1 is never
completely shut, even if side air vent 2 is
shut. ...
Traction Control System (TCS)/StabiliTrak® Light
The TCS/StabiliTrak light comes on briefly when the engine is started.
If the light does not come on or stays on, have the vehicle serviced by the dealer.
If the system is working normally, the in ...






