On my 2003 Impala, I just had inspected and had a catalytic converter replaced on, for some reason had the SECURITY light on while driving for a little while. Now it started and drove normally, unlike many searches on the Internet, which said theirs did not start. Why would the SECURITY …

2003 Chevy Impala Security Light Question

ReddiePenguin March 3, 2009, 11:44pm 9

Well, how does one activate or deactivate or is it automatic? I mean what is the SECURITY system.

Yes, I read the manual, but it’s not making any sense when I read it or when a friend of mine reads it.