My 2011 Leaf started doing this right after its very first "detailing" a few days ago (no, we don't wash our cars very often). I followed VincentGen1's disassembly instructions and got down to the skinny little PCB that contains the two switches and is connected to the display with a white...
I guess I'm just too used to cramming my 6' 9" frame into dinky modern cars...! I certainly wouldn't say the Leaf's legroom is wonderful but it is adequate for me. Of course, I have to sit up real straight and not slouch.
A mitigating factor is the fact that our Leaf is officially my wife's...