Disarming the Perimeter Alarm

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The perimeter alarm can be disarmed by:

pressing the UNLOCK button on a programmed IKT.
using a programmed IKT to transition the ignition to the RUN position.
entering the correct vehicle unlock code on the keyless entry keypad.

The perimeter alarm can be deactivated by pressing the PANIC button on an IKT. All of the lamps stop flashing and the horn stops sounding, but the alarm is still armed.