Theft Security System Light won't turn off

Have you had your alternator tested? Most auto parts stores can test it for free.

My 99 check pick want started are tron over want say nothing

my alarm system will not cut off . how can i stop it ? can i bypass the alarm? the truck runs but alarm comes on when i cut the key off

Hi my 2016 Chevy Silverado 2500 HD has went on anti theft and wont let me start up my truck I try to turn it on and all I hear is a click also on the dashboard it shows a car with a lock on it how do I bypass this anti security?

I have same problem 2015 ... all lights come on wirh security... showing lock .... any help anybody ???

Accidentally activated security on 2002 Silverado. Key won't turn or shift. Can't crank truck. How do I fix this?

My 2007 chevy silverado classic wont start flashing lock on dashboard

Put the key to the front for at least 30 minutes or until light anti theft turns off then turn the key back and start the engine and it should start.

I'm having the same problem but I heard by resetting the computer should do it don't know how true that is