2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 424

Secure loose items to prevent weight shifts that could affect the balance of your vehicle. When the truck‐camper is loaded, drive to a scale and weigh on the front and on the rear wheels separately to determine axle loads. Individual axle loads should not exceed either of the gross axle weight ratings (GAWR). The total axle loads should not exceed your vehicle's gross vehicle weight rating (GVWR). These ratings are given on the vehicle certification label attached to the rear edge of the driver's door. See "Certification/Tire Label" under Loading the Vehicle on page 5‑33. If weight ratings are exceeded, move or remove items to bring all weights below the ratings. When you install and load your slide-in camper, check the manufacturer's instructions. If you want more information on curb weights, cargo weights, Cargo Weight Rating and the correct center of gravity zone for your vehicle, your dealer can help you. Just ask for a copy of "Consumer Information, Truck-Camper Loading." Pickup Conversion to Chassis Cab We are aware that some vehicle owners might consider having the pickup box removed and a commercial or recreational body installed. Owners should be aware that, as manufactured, there are differences between a chassis cab and a pickup with the box removed which could affect vehicle safety. The components necessary to adapt a pickup to permit its safe use with a specialized body should be installed by the body builder. Towing Towing Your Vehicle To avoid damage, the disabled vehicle should be towed with all four wheels off the ground. Consult your dealer or a professional towing service if the disabled vehicle must be towed. See Roadside Assistance Program on page 8‑7. To tow the vehicle behind another vehicle for recreational purposes, such as behind a motorhome, see "Recreational Vehicle Towing" following. 5-48