I held my locks down on my 200 buick Regak to adjust the lock setting and now my car won't start. What should I do?

Wait about 15-20 minutes and try it again.

I did and it still won't start. should I un hook and hook the battery back up again?

Clarify. Won't turn over or turns over but won't start?

I just replaced the battery in it today and it started up fine

Yes try unhooking the battery for about 15-20 minutes.

Morning T.A. Could it be the anti theft system?

The car won't even make a cranking sound. Once I held the lock switch, the entire car including the outside and enterior lights

I will try un hooking the battery and hooking it back, howver what if it is the Anti Theft system, which is what I thought it might be, what steps would I need to follow to find out if it is the Anti Theft?

Good evening Mark. It sure sounds like its the anti theft system.

What steps would I need to take to re set the anti theft system? I just got this car and have no clue.

I would start with unhooking the battery. Then let's go from there. That might fix your problem.

Ok Iwill Thank you so much