2009 Infiniti FX50 Owner's Manual - Page 466

Towing capacities are calculated assuming a base vehicle with driver and any options required to achieve the rating. Additional passengers, cargo and/or optional equipment, such as the trailer hitch, will add weight to the vehicle and reduce your vehicle's maximum towing capacity and trailer tongue load. The vehicle and trailer need to be weighed to confirm the vehicle is within the GVWR, Front GAWR, Rear GAWR, Gross Combined Weight Rating (GCWR) and Towing capacity. STI0542 TI1012M Tongue load When using a weight carrying or a weight distributing hitch, keep the tongue load between 10 to 15% of the total trailer load within the maximum tongue load limits shown in the following "Towing Load/ Specification" chart. If the tongue load becomes excessive, rearrange cargo to allow for proper tongue load. MAXIMUM GROSS VEHICLE WEIGHT (GVW)/MAXIMUM GROSS AXLE WEIGHT (GAW) The GVW of the towing vehicle must not exceed the Gross Vehicle Weight Rating (GVWR) shown on the F.M.V.S.S./C.M.V.S.S. certification label. The GVW equals the combined weight of the unloaded vehicle, passengers, luggage, hitch, trailer tongue load and any other optional equipment. In addition, front or rear GAW must not exceed the Gross Axle Weight Rating (GAWR) shown on the F.M.V.S.S./C.M.V.S. S. certification label. All vehicle and trailer weights can be measured using platform type scales commonly found at truck stops, highway weigh stations, building supply centers or salvage yards. To determine the available payload capacity for tongue load, use the following procedure. 1. Locate the GVWR on the F.M.V.S.S./C.M. V.S.S. certification label. 2. Weigh your vehicle on the scale with all of the passengers and cargo that are normally in the vehicle when towing a trailer. 3. Subtract the actual vehicle weight from the GVWR. The remaining amount is the available maximum tongue load. Technical and consumer information 9-21