GM Service Manual Online
For 1990-2009 cars only

Exiting Programming Mode for Pontiac Montana Ext. 2003

To exit programming mode, turn the key from ACCESSORY to OFF and put the BCM PRGRM fuse back into the instrument panel fuse block.

After programming a feature, you can exit the programming mode at anytime. Also, if your vehicle is equipped with the content theft-deterrent system, remember to arm the system before exiting.