It's the wife's vehicle but I do drive it and am a passenger sometimes. She doesn't see the issue with it but I do, especially when driving in the middle of the night and it is the quietest thing I've ever driven in and then randomly, rattles for a few miles for no reason then it just stops. It absolutely is not Eco mode, turned it off and issue did not go away. I've shaken the door at home violently without reproduction success leading me to believe it is on the driver side dash or steering column. Any ideas?