I Know how to reprogram the remotes.
Important! You must program both remotes at the same time, it erases all previous information.
1. Remove key from ignition.
2. Remove the BCM PRGRM fuse from the fuse panel
3. Close all doors
4. Close the lift gate.
5. Turn the ign lock to the ACC postion.
6. Turn the ing lock cylinder to OFF, and then back to ACC within one second.
7. Open and close any door. (you should hear a chime.)
Important! After 7 seconds a chime may be heard confirming successful synchronization. It is necessary to wait appox. 14 seconds for a second chime.
8. Press and hold the transmitter Lock and Unlock buttons simultaneously for 14 seconds.
9. Repeat the previous step on each additional transmitter.
10. Remove the ignition key from the ignition cylinder.
11. Install the BCM PRGRM fuse back into the fuse panel.