See also:

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

Dynamic options: M Sport package, Adaptive M Sport suspension, sports automatic transmission and BMW 3-Series xDrive
Enthusiasts will welcome the further features that are available to enhance the dynamic driving qualities of the new BMW 3-Series and give them a distinctive visual dimension as well. The M Sport ...

The concept
The tire inflation pressure is measured in the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. ...