The concept

HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without requiring brake application, the vehicle moves at slightly more than twice walking speed.

You can activate the Hill Descent Control at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx. twice walking speed and then keeps its speed constant.

While you are actively braking, the system is on standby. The system does not brake the vehicle during this time.

    See also:

    Address book
    Selecting a destination from the address book 1. "Navigation" 2. "Address book" Contacts with addresses are displayed if these have been checked as destinations from among th ...

    Display
    Display ▷ Lines, arrow 1: the system is activated. ▷ Arrows, arrow 2: at least one lane marking was detected and warnings can be issued. ...

    Range
    After the reserve range is reached: ▷ A Check Control message is displayed briefly. ▷ The remaining range is shown on the computer. ▷ When a dynamic driving style is used, ...