Have had intermittent issues with the phone not connecting via Bluetooth when making/receiving a call (iPhone 6S). The other day, screen went black while driving, Sync performed maintenance autonomously, everything came back to "normal". Later made a couple of calls, with the same intermittent annoyances, but it connected and audio worked through Bluetooth connection. Well, a couple of days ago, something new - it worked, but with no audio. Outgoing or incoming calls. Deleted the phone, deleted the phone Sync entries, re-paired it - no change. Finally - just did a Master Reset in Sync, re-paired the phone, now everything works perfectly.
Really odd thing - when I bought the truck (used), the dash guages would dim for no reason, color would fade on the touchscreen, then randomly come back to normal - on my list of things to fix. The reset seemed to resolve that issue, as well.
