2012 Chevrolet Suburban Owner's Manual - Page 356

9-78 Driving and Operating Maximum Tongue Weight 272 kg (600 lbs) 453 kg (1,000 lbs) 499 kg (1,100 lbs) 680 kg (1,500 lbs) Vehicle Series 1500 2500 1500 2500 Hitch Type Weight Carrying Weight Carrying Weight Distributing Weight Distributing Trailer tongue weight (A) should be 10 percent to 15 percent of the loaded trailer weight (B) up to the maximums for vehicle series and hitch type. Do not exceed the maximum allowable tongue weight for the vehicle. Choose the shortest hitch extension that will position the hitch ball closest to the vehicle. This will help reduce the effect of trailer tongue weight on the rear axle. Trailering may be limited by the vehicle's ability to carry tongue weight. Tongue weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross Axle Weight Rating). See "Total Weight on the Vehicle's Tires" later in this section for more information. After loading the trailer, weigh the trailer and then the tongue, separately, to see if the weights are proper. If they are not, adjustments might be made by moving some items around in the trailer.