Sparky, I saw your other thread after I started this one yesterday. Yes, it appears that we can generate all kinds of random errors by accelerating the boot up and go sequence. I thought that a text error message would always show up in the display, but that doesn't happen. Monika noted yesterday that the little green "ready to go" car shows up long before all the gauge check and caution lights go away. I believe that I was once able to get going without passing through the Carwings agreement screen. That would be a good trick to learn.
As I was fiddling with the car yesterday, I found another one: I had turned the car on so I could read SOC. When I went to turn car off, it thought that I wanted to go, so it kept chiming at me and displaying the plugged-in warning. (Can't go into D or R when plugged in.) I had to get out and unplug the car before it would let me turn it off. I'll try and reproduce that one; you shouldn't have to unplug to shut off.
I discovered on my second day of LEAFing that you need to close the rear hatch firmly. I drove most of way to work with a yellow master caution light and door ajar icon on dash. Latch has two stages; it won't come open on the first stage, but it rattles on bumps and the car complains.
Maybe owning a Prius should be part of training for LEAF? I skipped that step, so I'm learning the hard way.