I just programmed a new remote on my 02, the instructions say they are the same for up to 06. Need a working remote to make this work. On your programmed remote:
Switch the ignition to the on position.
Press and hold the Unlock button for at least four seconds. While holding this button, press the panic button and then release both buttons at the same time. You may or may not hear a chime from the vehicle.
Within 30 seconds, on all remotes to be programmed (including the original "programmed remote")press and release the lock and unlock buttons at the same time, followed by pressing ANY button on the remote.
Switch the ignition to off or wait 30 seconds for the programming mode to clear.
Just did it last eve, hope it works for you!