Step 1. Turn ignition off
Step 2. Ground the program pin.(within one second, Lock, Unlock and Trunk will cycle to indicate module ready for programming.)**the program pin is the two wire connector plugged into the RKE reciever in the trunk of the vehicle at the Left Wheelhouse. Leave the main harness plugged in but unhook the two wire connector and ground the pins.**
Step 3. Press and hold the LOCK and UNLOCK buttons until:
Lock, Unlock, Trunk, and Horn cycles to indicate the transmitter has successfully been programmed.
(This takes no more then 12 seconds)
Step 4. Repeat step 3 for the remaining number of transmitters
Step 5. Remove the ground from the program pin.
Step 6. Verify proper operation of the transmitters.
Or you could follow SmokingSS's hammered post. I frankly don't care