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:

    Active cruise control
    With active cruise control you can select a desired speed which is then automatically maintained when driving on open roadways and is varied to maintain a selected distance setting to slower m ...

    Route
    General informationDepending on your vehicle's equipment, various views of the route are available during route guidance: > Arrow display on the Control Display. > List of route segments ...

    Resetting the system
    Reset the system after each correction of the tire inflation pressure and after every tire or wheel change. 1. "Vehicle Info" 2. "Vehicle status" 3. "Reset" 4. S ...