2003 GMC Sonoma Owner's Manual - Page 255

Trailer Recommendations You must subtract your hitch load from the CWR for your vehicle. Weigh your vehicle with your trailer attached, so that you won't go over the GVWR or the GAWR. You'll get the best performance if you spread out the weight of your load the right way, and if you choose the correct hitch and trailer brakes. For more information, see Towing a Trailer on page 4-54 later in this section. Towing a Trailer Pickup Conversion to Chassis Cab General Motors is aware that some vehicle owners may consider having the pickup box removed and a commercial or recreational body installed. However, we recommend that conversions of this type not be done to pickups. Owners should be aware that, as manufactured, there are differences between a chassis cab and a pickup with the box removed which may affect vehicle safety. For specific information on this pickup, contact GM Customer Assistance. See Customer Assistance Offices on page 7-4. you don't usc l e correct equipment and drive properly, you can lose control when you pull a trailer. For example, if the trailer istoo heavy, the brakes may not work well or even at all. You and your passengers could be seriously injured. Pull a trailer only if you have followed all the steps inthis section. Ask your dealer for advice and information about towing a trailer with your vehicle. -- Notice: Pulling a trailer improperly can damage your vehicle and result in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice in this part, and see your dealer for important information about towing a trailer with your vehicle. Additional rear axle maintenance is required for a vehicle used to tow a trailer. See "Scheduled Maintenance Services" in the Index. Your vehicle may be able to tow a trailer. To identify what the vehicle trailering capacity is for your vehicle, you should read the information in "Weight of the Trailer" that appears later in this section. 4-54