Overview
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.

1 Multifunction display
2 To switch on the Voice Control System; see the separate operating
instructions
3 Right control panel
4 Left control panel
5 Back button
See also:
Vehicle data, GL 450
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
...
View through the camera
The area behind the vehicle is displayed in a
mirror-inverted manner, as in the rear-view
mirror.
WARNING
The rear view camera is only an aid and may
display obstacles
- from a distorted per ...
SmartKey
Display messages
Possible causes/consequences and
Solutions
You have put the wrong SmartKey in the ignition lock.
– Use the correct SmartKey.
The Sma ...
