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:

    Multi-channel playback,surround
    Choose between stereo and multi-channel playback, surround. Setting multi-channel playback, surround 1. "CD/Multimedia", "Radio" or "Settings" 2. "Tone" 3 ...

    Transmission positions
    D Drive, automatic position Position for normal vehicle operation. All forward gears are available. R is Reverse Select only when the vehicle is stationary. N is Neutral Use in automatic car wa ...

    Deactivating HDC
    Press the button again; the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...