Hi, I have a 2015 b2320 and its happened a couple times where the tractor shuts off when I get off. Tractor is completely stopped before I get off. When it shuts off I turn the key to off and try to start up again but tractor doesn't even turn lights come on but it doesn't turn over. I do this 3 to 4 times then it starts no problem. It doesn't always happen buts it's happened twice in a month.