2004 Jeep Wrangler Owner's Manual - Page 218

218 WHAT TO DO IN EMERGENCIES WARNING! • Do not connect the cable to the negative terminal of the discharged battery. The resulting electrical spark could cause the battery to explode. • During cold weather when temperatures are below freezing point, electrolyte in a discharged battery may freeze. Do not attempt jump starting because the battery could rupture or explode. The battery temperature must be brought up above freezing point before attempting to jump start. 3. Take care that the clamps from one cable do not touch clamps from the other cable. Do not lean over the battery when making the connection. The negative connection must provide good electrical conductivity and current carrying capacity. 4. After the engine is started or if the engine fails to start, the cables must be disconnected in the following order: a. Disconnect the negative cable at the engine ground. b. Disconnect the negative cable at the negative terminal on the booster battery. c. Disconnect the cable from the positive terminals of both batteries. WARNING! Any procedure other than above could result in: • Personal injury caused by electrolyte squirting out the battery vent. • Personal injury or property damage due to battery explosion. • Damage to charging system of booster vehicle or of immobilized vehicle.