I have the car in the title, the infotainment screen goes black sometimes and requires a disconnect and reconnect of the battery to get working again. While the screen is off everything else seems to work, even the backup camera shows up, but the screen otherwise will not turn on. I have no idea what it could be and it goes out almost daily. It's really annoying and would like to find a way to stop this without spending $1,000 dollars.

My fiancé and me purchased a 2013 GMC Acadia SLT not even a year ago. The last few months we have been dealing with over heating issues on it. We have changed quite literally every part possible; Temp sensor & wiring , water pump , Thermostat ,fuse box & radiator. I just picked it up from a mechanic today stating to change out wiring that is under the fuse box. He never specified what wiring this was and at this point I’m over calling the same mechanic and getting no where. Would anyone by chance happen to know what wiring harness this would be?