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:

Indication of a flat tire
The yellow warning lamp lights up. A Check Control message is displayed. There is a flat tire or a major loss in tire inflation pressure. 1. Reduce your speed and stop cautiously. Avoid ...

System limits
Basic limits System operation is limited in situations such as the following: ▷ On steep hills, in steep depressions or in tight curves. ▷ When the camera is dirty or the protective ...

Switching off
The system can be deactivated as follows: ▷ Press the button. ▷ Switch off the ignition. ...