Do not go through the processes of locking... unlocking... turning keys... and pushing buttons... the truth is, I have a Grand Am too.. and I asked these guys for help for the same problem... they had me sitting out in my car doing all sorts of things that didnt work. Whoever the guy is that said that you need a Tech2 scan tool, he is telling the truth. I talked to my dealer, and he said that if I paid for an oil change($20) that he would program them for free. So ask around and find any GM dealer.. some of them are as nice as the one that i talked to. Now, I have WORKING keyless entry and didnt have to pay anything for it...
good luck:flash: