Cadillac 2007 XLR Owner's Manual page 85

Arming the System
Use one of the three following items listed here to
arm the system:
•
Press the lock button on the keyless access
transmitter.
•
Open the door. Lock the door with the power
door lock switch. The security light should
flash. Remove the keyless access transmitter
from the interior of the vehicle and close
the door. The security light will stop flashing
and stay on. After 30 seconds, the light should
turn off.
•
The vehicle can be programmed to
automatically lock the doors and arm the
system when you exit the vehicle. See DIC
Vehicle Personalization on page 220.
Now, if a door or the trunk lid is opened without
the keyless access transmitter, the alarm will
go off. Your horn will sound for two minutes, then
it will go off to save battery power. And, your
vehicle will not start without a keyless transmitter
present.
The theft-deterrent system will not arm if you lock
the driver's door with the power door lock
switch after the doors are closed.
If your passenger stays in the vehicle when you
leave with the keyless access transmitter, have the
passenger lock the vehicle after the doors are
closed. This way the alarm will not arm, and your
passenger will not set it off.
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