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      What is the Gross Vehicle Weight Rating? (GVWR)

      The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight/mass of a vehicle as specified by the manufacturer including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers. The term is used for motor vehicles and trains.

       

      Why is GVWR important?

      Safety is the driving force behind the GVWR for any vehicle. If a vehicle is overloaded, a number of problems can result. For example, if the vehicle is too heavy, the brakes may not be substantial enough to slow down or stop the vehicle effectively; the suspension components can become ineffective or possibly even break under the added strain and tires that are overloaded generate more heat, making them more likely to blow out.

       

      What is Gross combined weight rating (GCWR)?

      The gross combined weight rating or gross combination weight rating (GCWR), also referred to as the gross combination mass (GCM), gross train weight (GTW), or maximum authorized mass (MAM), is the maximum allowable combined mass of a road vehicle, the passengers and cargo in the tow vehicle, plus the mass of the trailer and cargo in the trailer.