See also:

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

Switching on automatically
Select transmission position R with the engine running. ...

Notes
> Reception may not be available in some situations, such as under certain environmental or topographic conditions. The satellite radio cannot influence this. > The signal may not be availabl ...