The remotes just do not work anymore, I have tried reprogramming them I even took them right to chev and had them test them , they are just not working anymore. And no newer remotes will not work, I tried that yesterday I went to the wreckers and got a remote from an 02 and 1 from an 05, the FCCID numbers do not match and will not program to the car. You have to have gm part #16245100 and it has to have FCCID AB01502T