See also:

Automatic re-arming
If the doors are unlocked, the locks will automatically reengage (re-lock) and the alarm will re-arm after 2 minutes unless a door or the tailgate has been opened. ...

Parking lights
Headlight control in position for parking lights The parking lights (the license plate lights also come on) can be turned on even when the ignition is switched off. Turn the headlight control ...

Occupant Weight Sensor
Disabling the passenger's side front airbag Occupant Weight Sensor (OWS) indicator light Volvo recommends that ALL occupants (adults and children) shorter than 4 feet 7 inches (140 cm) be s ...