2012 Chevrolet Colorado Owner's Manual - Page 240

9-58 Driving and Operating . For information on towing a disabled vehicle, see Towing the Vehicle on page 10‑91. For information on towing the vehicle behind another vehicle such as a motor home, see Recreational Vehicle Towing on page 10‑91. Consider using a sway control. See "Hitches" in Towing Equipment on page 9‑66. Do not tow a trailer at all during the first 800 km (500 miles) the new vehicle is driven. The engine, axle or other parts could be damaged. Then, during the first 800 km (500 miles) that a trailer is towed, do not drive over 80 km/h (50 mph) and do not make starts at full throttle. This helps the engine and other parts of the vehicle wear in at the heavier loads. Vehicles with automatic transmissions can tow in D (Drive), but you may want to shift to a lower gear selection if the transmission shifts too often (e.g., under heavy loads and/or hilly conditions). If the vehicle has a manual transmission it is better not to use the highest gear. Three important considerations have to do with weight: ... . The weight of the trailer The weight of the trailer tongue The weight on the vehicle's tires Driving with a Trailer Driving Characteristics and Towing Tips Pulling A Trailer Here are some important points: . . { WARNING When towing a trailer, exhaust gases may collect at the rear of the vehicle and enter if the liftgate, trunk/hatch, or rear-most window is open. Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. (Continued) There are many different laws, including speed limit restrictions, having to do with trailering. Make sure the rig will be legal, not only where you live but also where you will be driving. A good source for this information can be state or provincial police. .