2002 GMC Sonoma Owner's Manual - Page 270

If You Do Decide To Pull A Trailer If you do, here are some important points: D If you have an automatic transmission, tow in D If you have the 2200 L4 (Code 5) engine, use regular gasoline (without ethanol) when pulling a trailer. See "Fuel" in the Index. restrictions, having to do with trailering. Make sure your rig will be legal, not only where you live but also where you'll be driving. A good source for this information can be state or provincial police. weigh 3,500 lbs. (1 589 kg). You should always use a sway control if your trailer will weigh more than 3,500 lbs. (1 589 kg). You can ask a hitch dealer about sway controls. (800 km) your new vehicle is driven. Your engine, axle or other parts could be damaged. tow a trailer, don't drive over 50 mph (80 km/h) and don't make starts at full throttle. This helps your engine and other parts of your vehicle wear in at the heavier loads. D There are many different laws, including speed limit D Consider using a sway control if your trailer will DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often (e.g., under heavy loads and/or hilly conditions). If you have a manual transmission and you are towing a trailer, it's better not to use the highest gear. Three important considerations have to do with weight: D the weight of the trailer, D the weight of the trailer tongue D and the weight on your vehicle's tires. Weight of the Trailer How heavy can a trailer safely be? It depends on how you plan to use your rig. For example, speed, altitude, road grades, outside temperature and how much your vehicle is used to pull a trailer are all important. And, it can also depend on any special equipment that you have on your vehicle. D Don't tow a trailer at all during the first 500 miles D Then, during the first 500 miles (800 km) that you 4-52