to set the alarm:
move any power door lock switch to Lock with a door open. the Security light should iluminate, until the door is closed, and stay on for about 3 seconds after. the door locks will click after door is closed.
if a door is opend the alarm will go off. if a lock is damaged, the alarm will go off too. you cars lights will flash and the horn will blow. if you reach in and manually unlock the door, the alarm will also go off.
To Disarm the Alarm:
Use the door key and unlock the door from the out side. using the interior power door lock switch to unlock, or manually unlocking the door will also set off the alarm.