See also:

Functional readiness of the airbag system
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 tension ...

Buckling the belt
Buckling the belt Make sure you hear the latch plate engage in the belt buckle. ...

Safety switch
With the safety switch, the rear windows are prevented from being opened or closed via the switches in the rear passenger area, such as by children. Press the button. The LED lights up if the ...