Mercedes-Benz GLS Operator's Manual page 401

The road and traffic rules and regulations always
have priority over multimedia system driving
instructions.
Driving instructions are:
Navigation announcements
R
Route guidance displays
R
Lane recommendations
R
If you do not follow the driving instructions or if
you leave the calculated route, a new route is
calculated automatically.
Driving instructions may differ from the actual
road and traffic conditions if:
The route is diverted
R
The direction of a one-way street has been
R
changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey as well as the prevailing traffic condi‐
tions.
The route may differ from the ideal route due to
the following:
Roadworks
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Incomplete digital map data
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Notes on GPS reception
The correct function of the navigation system
depends amongst other things on GPS recep‐
tion. In certain situations GPS reception can be
impaired, defective or even not possible, e.g. in
tunnels or in parking garages.
Changing direction overview
Changes of direction are shown in the following
displays:
Detailed image of the intersection
R
The display appears when you drive into an
intersection.
3D image
R
The display appears when driving on inter‐
section-free, multi-lane roads, for example on
freeway exits and freeway interchanges.
MBUX multimedia system 399
Detailed image of the intersection
1 Current distance to the change of direction
2 Driving maneuver
3 Current vehicle position
4 Maneuver point