i have an 04 2500hd with a banks six gun tuner and constantly get my security light coming on. and it logs 5 ecm events each time which i have to clear through code clearing program. any others have this similar issue.

 

nope i have a 02 with edge and the only time mine does it is when the doors are opened. does yours do it when your driving or what?

 

The security light issue effects almost all GM vehicles. Go to this link, its full of info on the subject and some ways to fix it yourself

http://vatspasslockpasskeysecurityhelp.yolasite.com/