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:
M..
Function of ESP® Crosswind Assist
ESP® Crosswind Assist detects sudden gusts of
side wind and helps the driver to keep the vehicle
in the lane:
ESP® Crosswind Assist is active at vehicle
speeds between approx. 47 mph (75 km/h)
and 125 mph (200 km/h) when driving
straight ahead or cornering slightly...