How can I get the screen to access home, destination, map, etc?

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. This sounds like a possible touch screen issue - with the unit itself. The only thing I can suggest is - making sure no devices are attached to the audio unit, such as a phone. Delete the phone from Bluetooth even - avoid any outside connections. Sometimes connections can cause corruption of software. Other than that, you'll need some diagnostic help at a shop near you. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.