This is the maximum allowable weight of the towing vehicle and the loaded trailer - including all cargo and passengers - that the vehicle can handle without risking costly damage. (Important: The towing vehicle's brake system is rated for operation at the GVWR - NOT GCWR. Separate functional brake systems should be used for safe control of towed vehicles and for trailers weighing more than 1,500 lbs. When loaded.) NOTE:The measured GCW must never exceed the GCWR.

Maximum allowable combined weight of the tow vehicle and the trailer, according to the vehicle manufacturer; includes the weight of both vehicles, plus all fuel, water, supplies and passengers.

Maximum allowable gross combination weight (GCW).