I have a 2006 is 350. Intermittently the check vsc light turns on with no check engine light and the car won't start. After waiting 1/2 hr to and hr car will start again. There are no check engine codes so dealer can't figure out what the problem is. This has happened 4-5 times already. Anybody have an idea what it can be?

have you change the battery ? if not that your problem