Jeep 2010 Grand Cherokee - Owner Manual - Manual (Page 356)

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 mecha-
nism.
12. Reinstall the plastic plug into the floor of the cargo
area.
JUMP-STARTING PROCEDURES
If your vehicle has a discharged battery it can be jump-
started using a set of jumper cables and a battery in
another vehicle or by using a portable battery booster
pack. Jump-starting can be dangerous if done improperly
so please follow the procedures in this section carefully.
NOTE: When using a portable battery booster pack
follow the manufacturer’s operating instructions and
precautions.
CAUTION!
Do not use a portable battery booster pack or any
other booster source with a system voltage greater
than 12 Volts or damage to the battery, starter motor,
alternator or electrical system may occur.
WARNING!
When temperatures are below the freezing point,
electrolyte in a discharged battery may freeze. Do not
attempt jump-starting because the battery could rup-
ture or explode and cause personal injury. Battery
temperature must be brought above freezing point
before attempting a jump-start.
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WHAT TO DO IN EMERGENCIES 355