1995 GMC Sonoma Owner's Manual - Page 173

Trailering Package If your vehicle comeswith the Trailering Package, there is also a load rating which includes the weight of the vehicle and the trailer it tows. Thisrating is called the Gross CombinationWeight Rating (GCWR). When you weigh your trailer, be sure to include the weight of everything you put in it. And, remember to figure the weight of the people inside as part of your load. Your dealer can help you determine your GCWR. 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: Your warranty doesn't cover parts or components that fail because of overloading. 4-39