See also:

Buttons on the remote
Lock – Press the Lock button on the remote once to lock all doors and the tailgate. The turn signals will flash once to confirm locking. Unlock – Press the Unlock button on the remote once ...

General information
Occupant Weight Sensor (OWS) indicator light ...

Loss of a remote key
If either of the remote keys is lost, the other should be taken with the car to a Volvo retailer. As an anti-theft measure, the code of the lost remote key must be erased from the system. NO ...