Jeep 2009 Wrangler Unlimited - Owner Manual - Manual (Page 392)

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 the charging system of the booster
vehicle or of the immobilized vehicle.
• You should not try to start your vehicle by pushing
or towing.
• Do not connect the cable to the negative post of the
discharge battery. The resulting electrical spark
could cause the battery to explode.
(Continued)
WARNING! (Continued)
• During cold weather when temperatures are be-
low the 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 the
freezing point before attempting a jump-start.
390 WHAT TO DO IN EMERGENCIES