I think that you are mixing up the PATS key with the remote door lock fob that hangs with the key.
Edit note:
It looks like I did not read the above post all the way through. It looks like it covers both PATS and keyless remotes propely. I don't think I'm old enough for "senior moments", but this sure looks like one.
One small comment on the PATS programming though. Except for very early 98's, you will need two programmed keys to get into the programming mode. If you only have two keys now, it would be wise to add another one before one is lost and you will need to pay to have any additional keys reprogrammed.
JJ 06/29/02