2011 GMC Canyon Crew Cab Owner's Manual - Page 210

9-28 Driving and Operating Remember not to exceed the Gross Axle Weight Rating (GAWR) of the rear axle. A reinforcement kit for mounting a toolbox is recommended. See your dealer. Any load that extends beyond the vehicle's taillamp area must be properly marked according to local laws and regulations. Remember not to exceed the Gross Axle Weight Rating (GAWR) of the rear axle. Add-On Equipment When you carry removable items, you may need to put a limit on how many people you carry inside your vehicle. Be sure to weigh your vehicle before you buy and install the new equipment. Notice: Overloading the vehicle may cause damage. Repairs would not be covered by the vehicle warranty. Do not overload the vehicle. Starting and Operating New Vehicle Break-In Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: . Truck-Camper Loading Information The vehicle was neither designed nor intended to carry a slide-in type camper. Notice: Adding a slide-in camper or similar equipment to the vehicle can damage it, and the repairs would not be covered by the vehicle warranty. Do not install a slide-in camper or similar equipment on the vehicle. Keep your speed at 88 km/h (55 mph) or less for the first 805 km (500 miles). Do not drive at any one constant speed, fast or slow, for the first 805 km (500 miles). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle. .