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:
Also observe the following information when
fording:
Vehicles with AIR BODY CONTROL: select
the highest possible vehicle level
Drive no faster than 6 mph (10 km/h).
Observe the maximum permissible fording
depth.
Switch off automatic climate control...
Operating light switches
Left-hand standing lamps
Right-hand standing lamps
Parking lamps and license plate
lamp
Automatic driving lights (preferred
light
switch position)
Low beam/high beam
Switches the rear fog lamp on or
off
When low beam is activated, the
indicator
lamp for the parking lamps will be deactivated
and replaced by the low-beam
indicator
lamp...