Reb954
Platinum Member
If the trailer becomes detached while towing, it is no longer considered part of the combination, therefore gets treated the same as if it was parked. the question that I asked my insurance was if the trailer becomes detached from my truck while towing down the highway, is the trailer still covered under the vehicle insurance policy, and was told no. this same question has been discussed with other people that I know, and was told the same answer by their insurance also. I know it is a grey area, but comes down to if it becomes unconnected is no longer considered being towed.
I suspect an insurance company would have a hard time defending that if challenged in court.
Something I haven't seen mentioned though, safety chains will/should keep the trailer "attached" to the vehicle.