2009 Jeep Grand Cherokee Owner's Manual - Page 400

398 WHAT TO DO IN EMERGENCIES wheel nut tightness is 95 ft lbs (130 N·m). If in doubt about the correct tightness, have them checked with a torque wrench by your authorized dealer or at a service station. 10. Lower the jack to its fully closed position. Double check to ensure the tire is snug against the underbody of the vehicle. Damage to the winch cable may result if the vehicle is driven with the tire loose. WARNING! Do not use power tools to winch the tire up or down. Impact-type tools may damage the winch mechanism. 12. Reinstall the plastic plug into the floor of the cargo area. JUMP-STARTING If the vehicle has a discharged battery, booster cables may be used to obtain a start from a booster battery or the battery in another vehicle. This type of start can be dangerous if done improperly, so follow this procedure carefully. WARNING! A loose tire or jack, thrown forward in a collision or hard stop could endanger the occupants of the vehicle. Always stow the jack parts and the spare tire in the places provided. 11. Secure the tire, jack, and tools in their proper locations. NOTE: A tire should be stowed with the "beauty" side up. Storing the tire upside down may result in scratching or damage to the wheel face. Continue winching up the tire until you hear the winch "ratchet" three times.