1998 Bonneville, SECURITY light on

My security light came on couldn't start the car, followed all procedures to get car started, After a couple of times I jiggle the key enough times that it starts but now the Security light stays on. I don't have a remote just a key, so I got a new key from the dealer (robbed me $34), but the Light still won't go out. Does any one know how to disable the Security or figure out how to trouble shoot?