See also:

Remote keys
Your vehicle is equipped with two coded remote key transmitters with integrated ignition keys called Key Integrated Remote (KIR). The remote key transmitters will also activate or allow " ...

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 ...

Disarming the alarm
Press the Unlock button on the remote key. > Two short flashes from the car's direction indicators confirm that the alarm has been deactivated and that all doors are unlocked. ...