See also:

Functional readiness of the airbagsystem
When the ignition is switch on, the warning lamp in the instrument cluster lights up briefly and thereby indicates the operational readiness of the entire airbag system and the belt tensioner. ...

All around the headliner
1 Emergency Request 2 Panoramic glass sunroof 3 Indicator lamp, front passenger airbag 4 Reading lamps 5 Interior lamps ...

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. ...