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:
WARNING Risk of becoming trapped or
fatally injured if reversing protection is
not activated
If you close a side window again immediately
after it has been blocked, the side window
will close with increased or maximum force.
The reversing function is then not active and
body parts may become trapped...
NOTE Premature wear through failure to
observe service due dates
Maintenance work which is not carried out at
the right time or incompletely can lead to
increased wear and damage to the vehicle.
Adhere to the prescribed
service intervals.
Always have the
prescribed maintenance
work carried out at a qualified
specialist workshop...