1998 GMC Suburban Owner's Manual - Page 289

For four-door utility models equipped with an underbody spare tire carrier, follow these instructions to restore a spare orflat tire: If You're Stuck: In Sand, Mud, Ice or Snow What you don't want to do when your vehicle is stuck is to spin your wheels too fast. Themethod known as "rocking" can help you get out when you're stuck, but you must use caution. 1. Lay the tire on the ground at the rear of the vehicle. Position the tire so that the valve stem is pointed down and to the rear of the vehicle. 2. Tilt the retainer downward and through the wheel opening. Make sure that the retainer is fully seated across the underside of the wheel. 3. Attach the ratchet, with the UP mark facing you, near the hook at the end of the jack handle. Insert the other end, on an angle, through the hole in the rear bumper and into the hoist shaft. ' \ CA""1C'IJ: If' you let your tiresspin at high speed, they can explode, and you or others could be injured. And, the transmission or other parts of the vehicle can overheat. That could causean engine compartment fire or other damage. When you're stuck, spin the wheels as little as possible. Don't spin the wheels above 35 mph (55 km/h) as shown on the speedometer. 4. Raise the tire fully against the underside of the vehicle. Continue turning the ratchet u n t i l there are two "clicks" or "ratchets." The spare tire hoist cannot be over-tightened. 5 . Grasp and push against the tire to be sure it is stored securely and does not move. 5-39