I had that problem with mine, but then I figured it out. If it's coming loose it is not in right. You have to take it completly off and then you can see that there is one part of it that is not in place. Once I figured that out and put it in right it does not come loose. In fact you can't pull it loose now and before I could. Hope this helpsbillmeek said:The padding on the passenger backrest being loose is very common. I've had to press mine back in place a couple of times.