1997 Chevy Lumina 3.1L Security Light Problem

Check fuses
I found fuse box diagram which one of the fuses is for Theft-Deterrent Module, Radio. I would go through and check fuses
Chevrolet Lumina (1997) - fuse box diagram - Auto Genius
Some info no theft-deterrent below
1997 Chevy Lumina Car Will Not Start. "security" (2carpros.com)
Security System Preventing Car From Running: Car Will Not Start, ... (2carpros.com)

Follow the link for free diagrams of US sold makes http://bbbind.com/free_tsb.html

There may be a problem with your antitheft security system. This will turn off the starter and make it appear to not be functioning properly. Look for a light that says SECURITY when you try to start your car. If you see that light, go to this link for help.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Here is a link that will help you understand the problem. There are also some ways to beat this yourself.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

security light off, have someone hold the key to start and tap on the starter and see if it spins
if it does you need to replace the starter.

Same experience with my 94 Park Avenue! There is a detailed write-up here: http://vatspasskey.com . The guy is great, this was the only way I was able to save my car.

Go to carhelpsite.com it is free as long as you click on 2 of the ads at the website then your questions will be answered by an ASE certified mechanic,you don't have to buy or fill out anything on the ads,so help keep the site free.

my lumina 1996 turns on the security light and 20 seconds after turns off the car. What can I do? Thanks!!!!!!!!!!!!!

the system security is connected to a module. You can not remove it at all. It is a must fix to drive your car

usually, this is an ignition switch problem.