These instructions were how I got mine to program (03 GP GT):


Enter the car and close all doors. In the fuse panel, remove the "MALL PGM" fuse. Put your key into the ignition, and turn to "ACC." Turn the key on and off within a second. Open and close the driver's door and listen for the chime that indicates you are in programming mode. Press and hold the LOCK and UNLOCK buttons for 14 seconds, listening for the chime. Wait 14 seconds for the second chime. Repeat this step for all additional remotes, remove the key, replace the fuse, and exit the car. You will have programmed the remotes.