Mercedes-Benz GLC : Vehicles with Parking Assist PARKTRONIC / System failure
If the rear view camera is not operational, the
following display appears in the multimedia system.

The following camera views are available in the
multimedia system:
Normal view
Yellow lanes marking the course
the tires
will take with the current steering angle
(dynamic)
Yellow guide line, vehicle
width (driven surface)
depending on the current steering
angle (dynamic)
Red guide line at a distance of
approximately
1...
The rear view camera will not function or will
only partially function in the following situations:
The tailgate is open.
There is heavy rain, snow or fog...
Other information:
Removing
Release the rear seat backrest
and fold it forwards
slightly.
Pull the head restraint upwards
as far as it
will go.
Push release knob
in the direction of the
arrow and pull out the head restraint.
Installing
Insert the head restraint such
that the
notches on the bar are on the left when
viewed in the direction of travel...
Requirements:
The SmartKey is outside the vehicle.
The distance between the SmartKey and the
vehicle does not exceed 3 ft (1 m).
The driver's door and the door at which the
door handle is used are closed.
To unlock the vehicle:
touch the inner surface
of the door handle...