HDC Hill Descent Control
The concept
HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without applying the brakes, the vehicle moves at slightly more than walking speed.
Hill Descent Control can be activated at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx.
walking speed and then keeps its speed constant.
As long as there is active braking, the system is on standby. The system does not brake the vehicle during this time.
Use HDC in low gears or in transmission position D or R only.
See also:
Compatibility
If this symbol is printed on the
packaging
or in the instructions of the hand-held
transmitter, the remote-controlled device
is generally compatible with the universal
remote control.
If y ...
External temperature
External temperature warning
If the display drops to
+37 ℉/+3 ℃, a signal sounds.
A Check Control message is displayed.
There is the increased danger of
ice.
Ice on roads
Even ...
Safety
The xDrive50i has upgraded brakes with aluminum calipers. BMW's Integrated
Chassis Management coordinates the Dynamic Performance Control differential with
stability and traction control systems t ...