Separate TT policy vs liabitlity on auto ins policy?

I guess what I was asking is what division of my insurance policies, homeowners, auto, RV- covers damage to the RV because of a tire failure. I know the tire isn't covered but the spinning belts of a disintegrating tire can do a lot of damage.

If the tire example is causing confusion, what if we use an object thrown from the roadway. Said object cuts through the exterior and destroys the load center. Which type of policy is covering the damage??