Help with info window. Security light on.

[bigbird]

The little info window in the left hand corner of my dash has the security light on and it will not go off. anyone know why? this is on an 02.

Kelly

 

[DuramaxPowered]

if you switched ECm's it is probably from the VATS (vehicle anti-theft system) ......Do you get a no-start condition?

 

[bigbird]

original ecm. just started doing it with no changes to the truck. Truck operates normal.

 

[Duramaxallison08]

my buddys does the same. we dont know why either

 

[Noreaster]

I get it once in a bluemoon with my remote starter & I clear it out with the tuner.