I have already had my new GV70 in the shop for a rattle that I thought was coming from the back and their diagnosis was it was the front headrest. It got better for sure - still happening in the back seat. When I first got the vehicle, the back seat was not engaged fully which I took care of on my own. I guess it could be the back seat headrest but I am wondering if anyone has had similar issues and had success in a solution. Hard to drive a luxury car with a rattle in the backseat. Thanks!