Started my 2012 Tucson yesterday morning to leave up north and the awd warning light stayed lit. Drove about ten miles and stopped for coffee. When I started the car the light went out. Stopped for lunch and when we left and started the car the light stayed on again. Not noticing any change in the way the car drives. This morning when I started the car the light went out. Any guesses. ??? would this warning light leave a code in the system ?