See also:

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

Instrument cluster, electronic displays
1 Symbols and messages, e.g., warnings 2 Range 3 Computer 4 Navigation display Service display 5 Selection list, e.g., radio 6 Transmission displays ...

HDC Hill Descent Control
The concept HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without applying the brakes, the vehicle moves at slightly more than walking ...