Sherry

I have an 2015 Dodge Journey my heat doesn’t cut off. The lights want come on with the radio or the heater and ac. I can’t cut it off the heat stays on. I had an new battery put in. It was working up to that point no problems. The touchscreen doesn’t light up at all. The radio works but I can’t see how to change it. Unless I use my settings with the steering wheel. Could someone please let me know what it could be? Thank you so much