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:
Requirements:
The vehicle is secured with the electric parking
brake.
Vehicles with automatic transmission:
The transmission is in position .
The ignition and all electrical consumers are
switched off.
The hood is open.
Example: engine compartment
Slide cover
of positive clamp
on the
jump-starting connection point in the direction
of the arrow...
T..