2003 GMC Sierra 1500 Pickup Owner's Manual - Page 334

Towing Towing Your Vehicle Consult your dealer or a professional towing service if you need to have your disabled vehicle towed. See Roadside Assistance Program on page 7-6. Here are some important things to consider before you do recreational vehicle towing: What's the towing capacity of the towing vehicle? Be sure you read the tow vehicle manufacturer's recommendations. How far will you tow? Some vehicles have restrictions on how far and how long they can tow. If you want to tow your vehicle behind another vehicle for recreational purposes (such as behind a motorhome), see 'Recreational Vehicle Towing" following. Do you have the proper towing equipment? See your dealer or trailering professional for additional advice and equipment recommendations. Is your vehicle ready to be towed? Just as you would prepare your vehicle for a long trip, you'll want to make sure your vehicle is prepared to be towed. See Before Leaving on a Long Trip on page 4-42. Recreational Vehicle Towing Recreational vehicle towing means towing your vehicle behind another vehicle - such as behind a motorhome. The two most common types of recreational vehicle towing are known as "dinghy towing" (towing your vehicle will all four wheels on the ground) and towing" "dolly (towing your vehicle with two wheels the ground and on two wheels up on device known as a a "dolly"). With the proper preparation and equipment, many vehicles can be towed in these ways. See Dinghy Towing and Dolly Towing following. Dinghy Towing When towing your vehicle, turn the ignition to LOCK. Two-Wheel-Drive Vehicles Two-wheel-drive vehicles should not be towed with all four wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. To properly tow these vehicles, they should be placed on a platform trailer with all four wheels off the ground. 4-53