See also:

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

Performance
What sets the 5 Series wagon apart from the A6 and E-Class is the way it drives. Sure, its looks scream BMW inside and out, but so does the sweetly smooth acceleration coming from the twin-turbo s ...

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 ...