2010 Chevrolet Suburban 2500 Owner's Manual - Page 410

Dolly Towing Front Towing (Front Wheels Off the Ground) Two-Wheel-Drive Vehicles and Four-Wheel Drive Vehicles with a Single Speed Automatic Transfer Case Notice: If a two-wheel drive vehicle or a four-wheel drive vehicle with a single speed automatic transfer case is towed with the rear wheels on the ground, the transmission could be damaged. The repairs would not be covered by the vehicle warranty. Never tow the vehicle with the rear wheels on the ground. Two-wheel-drive vehicles and four-wheel drive vehicles with a single speed automatic transfer case should not be towed with the rear wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. Four-wheel drive vehicles with a single speed automatic transfer case have no neutral position and will spin the transmission when the rear wheels turn. To dolly tow a two‐wheel‐drive vehicle or a four-wheel drive vehicle with a single speed automatic transfer case, the vehicle must be towed with the rear wheels on the dolly. See "Rear Towing (Rear Wheels Off the Ground)" later in this section for more information. 5-46