Transmitter Programming
You can program up to 4 different transmitters to a remote control door
lock receiver. You can program a transmitter to more than one vehicle,
providing that the remote keyless entry systems are similar. If you
reprogram a transmitter, you must reprogram any and all other related
transmitters (a maximum of 4 per receiver) in order for the other
transmitters to function properly.

Important: Leave a window open during the reprogramming procedure. This
prevents unintentionally being locked out of the vehicle if you do not
properly perform the procedure.



Turn OFF the ignition.
Jump the 2  terminals (3, 4) in the program ground connector, in order to
ground the receiver program terminal.
Within 2 seconds the following sequence will occur, signalling that the
module is ready to be reprogrammed:
  -  The doors locks, and then unlocks.  

  -  The rear compartment lid release cycles.  

  -  The horn chirps.  



Press and hold both the lock button (5) and the unlock button (2) until
the signalling sequence occurs (approximately 12 seconds). The sequence
indicates that the transmitter has been successfully reprogrammed.
Repeat step 4 for the remaining transmitters.
Remove the jumper from the   terminals in the program ground connector.
Verify that each transmitter operates properly.

I bet your next question is: Where is the program ground connector and
what does it look like? open your trunk and look up in the left upper
corner you should see a box with wires going into it follow thw wires down
a few inches and you should see a connector hanging loose.should be only
two wires going to this connector take a paper clip and jump/connect the
two wires together. then follow the instructions above, don't for get to
remove the paper clip after your second transmitter is programmed.