See also:

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

The concept
> The voice activation system can be used to control functions by spoken commands. > Functions that can only used when the vehicle is stopped cannot be operated using the voice activation sys ...

Vehicle equipment
All standard, country-specific and optional equipment that is offered in the model series is described in this chapter. Therefore, equipment is also described that is not available in a vehicle, ...