This morning I went out to my car to go to work as usual. I opened the trunk with the fob and put my bag in, then unlocked the car with the fob to unplug it (I approach at the rear so the car doesn't auto-unlock for me). After unplugging, I initiated summon from the fob as I do every morning, but nothing happened. The rear tail lights flashed once to indicate it accepted the lock command, but then nothing. It would never enter summon. So then I take out the Remote S app and try to initiate summon that way. I get an error that said "Summon failed. Please disconnect charge cable." I had already done that, so no help there. I went to the passenger door and opened it (the handles auto presented as normal). The door opened, but the screens in the car remained blank. I go to the driver's side and squeeze into the seat. There isn't much room on that side of my garage which is why I use summon. I get in, and when I hit the brakes I get a message on the screen behind the steering wheel that said something like "Systems powering up, touch brake when this message clears." The center screen remained blank. I sat there for 3 or 4 minutes and nothing changed. The message never cleared and the center screen never came on. Finally I started trying things. I tapped the brake again (I had already tapped it once when I first got in and that seems to be what started the "Systems powering on" message) and the "Car Off" message disappeared and the "P R N D" screen showed up. Still no center screen though. I held down the two scroll wheels for about 20 seconds and nothing happened. Finally after probably 5 or 6 minutes total from when I first got in the car, the "T" logo on the center screen came on. From there it took another minute or so for the center screen to fully boot, the a/c to come on, etc., and then it seemed the car was fully functional and ready to go. As background, I had driven the car about 160 miles on Sunday and then parked it Sunday afternoon and hadn't been back in it until this morning. It had been plugged in and had charged as scheduled on Sunday night to 90% (286 miles of range). When I got in this morning, vampire drain had gotten it all the way down to 271 miles of range which usually would have triggered another charge session, but because the computer had crashed it had never charged. Anyone else have something like this happen? Do you know the cause? I have "always on" checked and "energy saver" unchecked so the app can always connect quickly and have never seen the car do anything like this before in the six months+ that I've had it.