Why do the parking lights just stay on

What is your question?

The automatic functions for the parking lights and headlights does not function correctly. Also the dome lights do not turn on from any door when you open the door regardless of whether the button is pushed in or out. The other problem is that the lights do not seem to want to stay in the automatic position. Can turn it backwards and it just goes back to being automatic off. I can manually turn on the headlights when I'm driving. But they should go on automatically. The worst thing is when you come to a stop and put the vehicle in park then turn off the ignition get out lock the doors the parking lights stay on for 15 minutes. It seems incorrect. Anybody has any ideas let me know this could be a ground problem or something like that I just don't know I've never seen this problem before. By the way this is the same switch to send many of the Chevrolet cars not just in the vans. Thanks! Have a great day!