What is Gross Vehicle Weight Rating (GVWR)?

GVWR Defined
GVWR stands for Gross Vehicle Weight Rating, and it’s a weight determined by a manufacturer for a particular vehicle. It’s the maximum gross weight of the vehicle and everything that it’s carrying, including passengers, cargo, and fuel, that the vehicle is designed for and should not exceed. The GVWR includes the weight of the vehicle and trailer, if applicable. It’s important to note that the GVWR is different from the Gross Trailer Weight Rating (GTWR), which is the maximum weight the trailer is designed to carry. The GVWR is often written on a weight label on the side of the vehicle, with the main assemblies on the vehicle such as the engine, transmission, axle and body mirroring what the manufacturer determined the weight should be.

GVWR Calculation
In order to calculate the GVWR, the manufacturer combines the weight of the vehicle with the estimated weight of all the cargo, passengers, and fuel it can carry, and the weight of any optional equipment installed. The GVWR is determined before the vehicle is registered and posted on the weight label affixed to the door or glove box.

Why Does GVWR Matter?
It’s important to know your GVWR for a couple of reasons. First, exceeding the GVWR can damage the vehicle, including the frame and some of the suspension components under the frame. Secondly, it can be dangerous as the extra weight could cause the vehicle to be difficult to control, which could lead to an accident. It is important to keep closely to the GVWR to keep both you and your car safe.

It’s also important to note that the effect of a heavy load on the vehicle can be more significant than the weight itself, due to the angle of the load and its placement. An improperly loaded cargo can shift the Centre of Gravity and cause the vehicle to sway or be more difficult to control. It is important to understand how to properly load a vehicle, taking into account the GVWR, to ensure maximum safety and stability.