I found the settings on the DIC and the anti theft is turned on. Quick question do you have the option where you can disarm the alarm if it sounds by inserting the key in the driver key cylinder? This option from the manual

KEY CYLINDER DISARM: If the vehicle has a content
theft-deterrent system, and ON was selected on the
THEFT DETERRENT screen, this screen allows
this feature to be turned OFF or ON. This feature
determines whether the driver’s door key cylinder may
be used to disarm the content theft-deterrent system.
If OFF is selected, the vehicle’s content theft-deterrent
system can not be disarmed by unlocking the driver’s
door using the driver’s door key cylinder. Selecting OFF
prevents a thief from disarming the vehicle’s content
theft-deterrent system by attacking the driver’s door key
cylinder, and may make the vehicle more secure.
However, if OFF is selected, unlocking an armed vehicle
by using the driver’s door key cylinder and opening
the door will cause the content theft alarm to activate.
For this reason, it is recommended that the vehicle
be unlocked using the remote keyless entry system
when this feature is set to OFF.
If ON is selected, the vehicle’s content theft-deterrent
system can be disarmed by unlocking the driver’s
door using the driver’s door key cylinder.
To program this mode:
1. Press the set/reset button to scroll to OFF or ON.
2. Press the options button again to advance to
the next screen.

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