The concept

HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. The vehicle moves at approximately walking speed without braking intervention by the driver.

You can activate the Hill Descent Control at speeds below approx. 22 mph/35 km/h. When moving downhill at speeds below approx.

22 mph/35 km/h, the vehicle reduces its speed to approximately walking speed, approx. 5 mph/ 8 km/h and keeps it constant.

Only use HDC in transmission positions D or R.

    See also:

    Malfunctions
    Steering wheel vibration Frequent activation of the steering wheel vibration causes the system to overheat. This causes the lane departure warning to become deactivated. Let the system cool and ...

    Controls
    Almost all functions can be operated in the same manner as they are in the front. Special features of operating the system in the rear are described here. Audio/video playback Audio Audio can ...

    Coolant temperature
    Should the coolant, and with it the engine, become too hot, a Check Control message is displayed. Check the coolant level ...