Press button; the LED above the
button
lights up.
Deactivating HDC
Press button again and the LED
goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h.
Display in the instrument cluster
The selected speed is displayed
in the speedometer.
Malfunction
A message is displayed in the instrument cluster.
HDC is not available, e.g., due to elevated brake temperatures.
BMW X3 Owners Manual > PDC Park Distance Control: Hints
Personal responsibility
Even an active system does not relieve
the driver from personal responsibility while
driving.
Technically the system has its limits, it cannot
independently react to all traffic situations.
Monitor your driving, be on the alert, observe
the vehicle surroundings and ...