My car wont start cause the security light is flashing on the dashboard.what do i do to resetso it can start.

Security system cannot identify your key. Try other key. If both keys fail, system may need to be repaired.

Impala's are famous for ignition issues, are the interior lights of your dash coming on when you want them, or just by themselves? The clicking after you turn off, I would check the security system, i.e., remote clickers, cars computer, key chip, ect. Sound like your alarm is attempting to engage

And this all started after you flooded the car dash?

I OWN a 2001 Olds Alero and the same thing happens to mine.. It's an easy fix..
1. Turn the Key to ACC (keep it in this mode for the entire 10 minutes).
2. The security light on the Dashboard will flash for exactly 10 minutes..
3. Once the 10 mins are over, the security light will stay solid..
Wait for the red light to disappear off the dashboard...
YOU ARE NOW READY TO TURN YOUR CAR OFF AND RESTART YOU CAR....

SIMPLE FIX..
I DO THIS ALL THE TIME TO MINE..

My Chevy cruze anti theft locked on me it was as simple as my key was faulty used extra key and guess what engine started key was damaged

Yes the security light will cause the truck to stall. Check out this link for info and solutions. This is definitely a security problem. http://vatspasslockpasskeysecurityhelp.yolasite.com/.

Most likely you replaced the starter because it wouldn't crank over. If this is correct and the security light was flashing before replacing the starter, then most likely you have a problem with the pass-lock system. If your ignition cylinder is located in the dashboard, you will need to remove it and replace the passlock housing.

U will need to bypass the factory VATS (vehicle anti-theft system) system, it is very simple and all you need to know is at the web page link below.

http://vats.likeabigdog.com/

secuity light flashing on 1996 regal 3.1