See also:

Rejects or ends a call
Press the button on the steering wheel. If you are not in the Telephone menu, you can still reject or end a call. ...

Restoring the factory settings
Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Switching on/off
The three red indicator lamps in the button indicate the heating level you have selected. If the battery voltage is too low, the seat heating may switch off. Driver's and front-passenger ...