Method 2 - Scan Tool Required, Program Individual Transmitter

IMPORTANT: All transmitters which are to be recognized by the PDM must be programmed in a single programming sequence. When using this program method, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter.
The order in which the transmitters are programmed will determine its numbering position within the PDM memory. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number stamped on the transmitter case is for reference only; #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available.

Only use this option if you are certain which transmitter, #1-#4, is being replaced, or the new transmitter can be programmed into a previously unused position within the PDM memory.

Install a scan tool.
Turn the ignition ON, with the engine OFF.
Use the scan tool in order to access the passenger door module Special Function menu.
Select Program Individual Key Fob to program specific transmitters.
Follow the directions on the scan tool in order to program the transmitter or transmitters.
Operate the transmitter functions in order to verify correct system operation.