1998 GMC Jimmy Owner's Manual - Page 266

If You're S t - :: 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. The method known as "rocking" can help you get out when you're stuck, but you must use caution. 1 NOTICE: Spinning your wheels can destroy parts of your vehicle as well as the tires. If youspin the wheels too fast while shiftingyour transmission back and forth,you can destroy your transmission. For information about using tire chainson your vehicle, see "Tire Chains" in the Index. I I A If you let your tires spin high speed, theycan at explode, and you or others could be injured. And, the transmission or other partsof the vehicle can overheat. That could cause an engine compartment fireor 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. 5-35