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:

    General information
    Instructions for voice activation system. To have the available spoken instructions read out loud: ›Voice commands‹ The following short commands apply to vehicles equipped with a voice activatio ...

    Indication of a flat tire
    The yellow warning lamp lights up. A Check Control message is displayed. There is a flat tire or a major loss in tire inflation pressure. 1. Reduce your speed and stop cautiously. Avoid sudd ...

    Sound output
    Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...