I seem to be having issues with certain buttons. From initial installation, I can't even change time or anything. Also, I can't even look for or enter an address to route me there. There are certain buttons that I may push but some of them aren't pushable. Any help?

Put your parking brake on

Put your parking brake on

I tried to push that button in settings and it will not allow me to do so.

There is no button in the menu. It has to be wired to your cars parking brake