As we left the garage tonight, the driver screen showed a twirling series of dots, and the main display just showed a large Honda icon. That was followed by a message on the main display that said: Anti Theft SystemThis system has lost power. Push and hold the power button for more than two seconds to enable the system. We tried numerous times to press and hold the Power button for more than two seconds while turning the car on and off, to no avail. We finally gave up and just drove off to our dinner, hoping for the best. We were relieved that the error had no apparent effect on the driving and operation of the car, but just had no audio or main display, except for the failure message occasionally, the backup camera, and the lane watch camera display. When we stopped for dinner, we were a bit surprised to see that the car locking and alarm system worked normally. Later, when we got back in the car, the same sequence of messages resumed. After arriving home, I checked the manual, and didn't find any reference to an "Anti Theft System" message, but I did find, on page 206 of the Owner's Manual, a written description of an "Audio System Theft Protection", which helped to clear things up. ( I couldn't find any mention of that in the Owner's Guide>) It said to select and hold the audio system power icon for more than two seconds. The Audio system power icon is at the upper left hand corner of the main display. I did that, and the problem was resolved, at least for now. It seems that there may be a physical switch under that Audio Power Icon, at least I thought I felt it click. What brought on the problem is still a mystery, but at least I now understand that the message is referring to the Audio System, NOT to the anti theft system for the car itself, as I had assumed. I'm passing this on in the hope that it might give some advance awareness into interpretation of that message, if you ever encounter it, and also to see if others may have already experienced the problem, and any possible insight into the root cause of the problem.