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:
With Smartphone Integration, you can use certain
functions on your mobile phone via the multimedia
system display.
Only one mobile phone at a time can be connected
via Smartphone Integration to the multimedia
system. Also for use with two phone mode
with smartphone integration, only one additional
mobile phone can be connected using Bluetooth
® with the multimedia system...
The term "sliding sunroof" also refers to the
panorama roof with power tilt/sliding panel.
Rain closing function when driving
Vehicles with a panorama roof with power
tilt/sliding panel: If it starts to rain, the raised
sliding sunroof will automatically be lowered
while the vehicle is in motion...