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 burns due to repeatedly
switching on the seat heating
Repeatedly switching on the seat heating can
cause the seat cushion and seat backrest
padding to become very hot.
In particular, the health of persons with limited
temperature sensitivity or a limited ability
to react to high temperatures may be affected
or they may even suffer burn-like injuries...
The prescribed service interval is based on normal
operation of the vehicle. Maintenance work
will need to be performed more often if the vehicle
is operated under arduous conditions or
increased loads.
The ASSYST PLUS service interval display is only
an aid...