How do you program 2001 Volvo s80 remote control?

To program the remote control for a 2001 Volvo S80, first, sit in the driver's seat and close all doors. Insert the key into the ignition and turn it to the "II" position without starting the engine. Within five seconds, press and hold the "lock" button on the remote until you hear a confirmation sound from the car. Repeat this process for additional remotes, then turn the ignition off to finalize the programming.