I am posting this in case it helps somebody else. There are similar problems posted, but not identical to this. A few days ago after power-on, a message appeared saying "See Owner's Manual" and I had to press OK before getting the ready to drive message. Several times before this, during power-on the Sync system said "shutting down to save power" and then "performing routine maintenance" or similar. So it seems there was some kind of battery problem, although the Alerts screen said nothing about it. Anyhow, I kept driving back and forth to work, until my key fob could no longer open the doors. It being Thanksgiving, the Ford dealer was closed, so I disconnected the auxiliary battery. This is the 2nd time I have done that in 24,000 miles. Battery disconnect solved the problem, but the Check Engine light (below) appeared until this morning, when everything went back to normal. I will start carrying a wrench from our old Volvo's repair kit in case this happens again when I'm on the road. Is there a way to get the code for the Check Engine error?