Sync screen comes on firstthing in morning. If I shut it off then restart

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Sync comes on when I first start it up. Stays on until I shut engine down. When I start it back up the screen will not come on. I let the car sit for an hour the restart it then screen comes back on . If I unhook the ground cable on the battery the turn car off for about 15 minutes then hook back up then restart engine it will come back on. Tried resetting but that did not work.