2015 Jeep Grand Cherokee Owner Manual - Page 537

STARTING AND OPERATING 535 rear axle systems (GAWR). Total load must be limited so Tire Size GVWR and front and rear GAWR are not exceeded. The tire size on the Vehicle Certification Label represents the actual tire size on your vehicle. Replacement tires Payload must be equal to the load capacity of this tire size. The payload of a vehicle is defined as the allowable load weight a truck can carry, including the weight of the Rim Size driver, all passengers, options and cargo. This is the rim size that is appropriate for the tire size listed. Gross Axle Weight Rating (GAWR) The GAWR is the maximum permissible load on the front Inflation Pressure and rear axles. The load must be distributed in the cargo This is the cold tire inflation pressure for your vehicle for area so that the GAWR of each axle is not exceeded. all loading conditions up to full GAWR. Each axle GAWR is determined by the components in the system with the lowest load carrying capacity (axle, springs, tires or wheels). Heavier axles or suspension components sometimes specified by purchasers for increased durability does not necessarily increase the vehicle's GVWR. Curb Weight The curb weight of a vehicle is defined as the total weight of the vehicle with all fluids, including vehicle fuel, at full capacity conditions, and with no occupants or cargo loaded into the vehicle. The front and rear curb weight values are determined by weighing your vehicle on a commercial scale before any occupants or cargo are added. 5