See also:

General information
The channels are offered in predefined packages. The packages must be enabled by telephone. ...

Displaying the button assignment
Use a finger to touch the buttons. Do not wear gloves or use objects. The key assignment is displayed at the top edge of the screen. ▷ To display short information: touch the button. ...

The concept
This system projects important information into the driver's field of vision, e.g., the speed. In this way, the driver can get information without averting his or her eyes from the road. ...