Theft System Not Programmed
WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) or powertrain control module (PCM) will send a message to the driver information center (DIC) to display Theft System Not Programmed when either the BCM or PCM are in the vehicle theft deterrent learn mode.