See also:

Active seat ventilation
Switching on Press the button once for each ventilation level. The highest level is active when three LEDs are lit. Switching off Press the button longer. The LEDs go out. ...

Saying commands
Activating voice activation system1.  Press the button on the steering wheel. 2.  Wait for the acoustic signal. 3.  Say the command.   This symbol on the Control Display and ...

Reference
This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...