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:

    Speed limit
    Entry of a speed limit which, when reached, should cause a Check Control message to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 k ...

    Functional requirements
    ▷ There are no external sources of interference nearby. ▷ To lock the vehicle, the remote control must be located outside of the vehicle. ▷ The next unlocking and locking cycle ...

    Using voice activation
    Activating the voice activation system 1. Press the button on the steering wheel. 2. Wait for the signal. 3. Say the command. The command is displayed in the instrument cluster. This symb ...