Every 2-3 weeks my 2014 Avalon hybrid won't start. I wait a half hour up to four hours and it always starts. The dealer can't diagnose it because it won't fail for him. He had it a week once and it didn't fail. It gives me a key icon. I've replaced the battery in my key fob. I've replaced the starting battery in the car. The dealer said it might me my aftermarket remote start so I had that removed. Still it gives me a problem. This problem has persisted since last November. This past Sunday I came out of church and it wouldn't start. Usually I can fiddle with it for about a half hour and it starts. This time it didn't. We went out to breakfast and went back to it and it still wouldn't start. This was at noon. I came back to it at 4:00 pm and it started.