2002 buick century costum

I had problems to start my car. I changed the ignition switch. The new one is a Ac Delco D1492C .The keys of this switch don’t have chips on it. I programmed it with the information I found on internet. The car starts now, but the red security light stayed on all the time. How can I turn off this light? Will the car give me problems later if the light remain on?