Will not start, possible Security System issue?

I am not able to start my SUV listed above (XL model). I think it is the security lockout system. Nothing happens when I turn the key. Initially, the "Security" warning light was flashing, even when no key was in the ignition. I followed each of the step's procedures on your post regarding this topic. Also, a lot fewer dummy lights are on after trying your procedures. The vehicle was running fine when we parked it. One more piece of info: our son got into some trouble, so there is a breath analyzer (interlock) device connected; however, that had been functioning without issue. The car had not been driven for a couple of weeks prior to trying to start it today. Thanks.

Bill