06 blackout touch screen

touch screen went black and stayed black after flickering a few times. I was able to revive it by turn car on and off but can no longer revive. I am in Las Vegas. Would anyone know any good mechanics or resources for dealing with this here? I just found out from other articles that my steering wheel controls might still work, I am hoping that it does because it is freaking hot here right now and I can't get into my AC. If that works I will have ample time to deal with this if not I will be pressed for time. When I went to check if steering controls work the touch screen came on as normal with starting of vehicle. whats going on any suggestions? thanks.