2000 Grand Am security system?

Your 2000 Grand Am has the Passlock system (first source). Although the GM standard is to replace the ignition cylinder and do the relearn procedure, I have never seen a bad cylinder. The relearn procedure works well. See the second source, in the Common Problems section, for the 30 minute procedure. Note that whereever it says "ten minutes" it is not one second less than ten minutes. Some procedures call it eleven minutes to be sure. My daughter's 2004 Classic has been doing just fine for two years after I had to teach it.

you need to take it to a shop that installs alarms is the only solution to this problem,,,,,,,,