Security light

[bamaboy73]

I have a 1999 2 door Tahoe on 35s. My check engine light was on for awhile. I left the key in the on position when you turn the key. Not started. It killed my battery so I chargered it up and it cranked and everything. I look and notice that the check engine light is off but the security light is on. I've done some research and all I could find is that when the light is on it shouldn't start. If it did start it would only run for a minute or too. Mine ran fine I drove it and turned it off and turned it Off

 

[SunlitComet]

you drove it and turned it off and turned it off? don't quite understand that part. does the cel first come on during the dashboard startup check and is the security light on continuously now? does it also currently start up and run normally?

 

[Big Kountry]

I've also got a 99 four door Tahoe that want start due to a security light staying on mine was a theft recovery I had to put a column in it now the light is on and want start

 

[SunlitComet]

sounds like you need reprogramming.