Dash indicators, lock in park

Had drove in morning and no indicator lights. Drove to apt had check engine 4wd indicator light and slick road indicators come on. Made it home. Went to work to night went over railroad tracks all indicator lights came on lost speedometer and got to town power steering didn’t work. Parked it then when to move vehicle would not go out of park. Thinking loose wires but where to start and am I on right track. Help. Not used to this newer stuff.