Additives
Do not use any additives in the engine oil.
This could damage the engine.
See also:
Ride & Handling
The GL has a unibody frame — rare among full-size SUVs — and its
four-wheel-independent air suspension swaps traditional coil springs for
inflatable air bladders. Ride height can be varied to enha ...
Problems with the rear window defroster
The rear window defroster has deactivated
itself prematurely or cannot be activated.
Switch off any consumers that
are not
required, e.g. reading lamps or interior
lighting.
When the batter ...
Volume and sound settings
You will find details on volume
and sound settings in the "At a
glance" section.
WARNING
External video sources may have different
volumes, which can mean that system
messages su ...