2010 JEEP GRAND CHEROKEE Owners Manual

WHAT TO DO IN EMERGENCIES
CONTENTS
Hazard Warning Flashers ................ 346
 If Your Engine Overheats ................ 346
 Jacking And Tire Changing ............... 348
▫ Jack Location ....................... 348
▫ Spare Tire Stowage ................... 349
▫ Spare Tire Removal ................... 349
▫ Preparations For Jacking ............... 350
▫ Jacking Instructions ................... 351 
Jump-Starting Procedures ................ 355
▫ Preparations For Jump-Start ............. 356
▫ Jump-Starting Procedure ............... 357
 Emergency Tow Hooks — If Equipped ...... 359
 Towing A Disabled Vehicle ............... 359
▫ Two-Wheel Drive Models Only .......... 359
▫ Four-Wheel Drive Models Only .......... 360
6

HAZARD WARNING FLASHERS
The Hazard Warning flasher switch is located on the
switch bank just above the climate controls.Press the switch to turn on the Hazard Warning
flasher. When the switch is activated, all directional
turn signals will flash on and off to warn oncoming
traffic of an emergency. Press the switch a second time to
turn off the Hazard Warning flasher.
This is an emergency warning system and should not be
used when the vehicle is in motion. Use it when your
vehicle is disabled and is creating a safety hazard for
other motorists.
If it is necessary to leave the vehicle to go for service, the
Hazard Warning flasher will continue to operate with the
ignition key removed and the vehicle locked.
NOTE: With extended use, the Hazard Warning flasher
may run down your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
•On the highways — Slow down.
•In city traffic — While stopped, shift the transmission
to NEUTRAL, but do not increase the engine idle
speed.
346 WHAT TO DO IN EMERGENCIES

CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads HOT
(H), pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
drops back into the normal range. If the pointer
remains on HOT (H), and you hear continuous
chimes, turn the engine off immediately and call for
service.
NOTE: There are steps that you can take to slow down
an impending overheat condition:
•If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
•You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control
to high. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the engine cooling system.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the hood,
do not open the hood until the radiator has had time
to cool. Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
6
WHAT TO DO IN EMERGENCIES 347

JACKING AND TIRE CHANGING
WARNING!
•Getting under a jacked-up vehicle is dangerous.
The vehicle could slip off the jack and fall on you.
You could be crushed. Never get any part of your
body under a vehicle that is on a jack. If you need
to get under a raised vehicle, take it to a service
center where it can be raised on a lift.
•The jack is designed to be used as a tool for
changing tires only. The jack should not be used to
lift the vehicle for service purposes. The vehicle
should be jacked on a firm, level surface only.
Avoid ice or slippery areas.
Jack Location
The scissor-type jack and tire changing tools are located
in the passenger side compartment, behind the second
row seat.
Jack Storage Location
348 WHAT TO DO IN EMERGENCIES

Spare Tire Stowage
The spare tire is stowed under the rear of the vehicle by
means of a cable winch mechanism. To remove or stow
the spare, use the jack handle to rotate the “spare tire
drive” nut. The nut is located under a plastic cover at the
center-rear of the cargo floor area, just inside the liftgate
opening.
CAUTION!
Do not use power tools to winch the tire up or down.
Impact type tools can damage the winch mechanism.
Spare Tire Removal
Fit the jack handle extension over the drive nut. Use the
lug wrench to rotate the nut counterclockwise until the
spare is on the ground with enough slack in the cable to
allow you to pull the tire out from under the vehicle.
Lowering/Raising Spare Tire
6
WHAT TO DO IN EMERGENCIES 349

CAUTION!
•The winch mechanism is designed for use with the
jack extension tube only. Use of an air wrench or
other power tools is not recommended and can
damage the winch.
•When the spare is clear, tilt the retainer at the end of
the cable and pull it through the center of the wheel.
Preparations for Jacking
1. Park the vehicle on a firm, level surface. Avoid ice or
slippery surfaces.
WARNING!
Do not attempt to change a tire on the side of the
vehicle closest to moving traffic. Pull far enough off
the road to avoid being hit when operating the jack
or changing the wheel.2. Set the parking brake.
3. Place the shift lever into PARK.
4. Turn the ignition OFF.
5. Turn on the Hazard Warning flasher.
6. Block both the front and rear of the
wheel diagonally opposite of the jack-
ing position. For example, if changing
the right front tire, block the left rear
wheel.
NOTE: Passengers should not remain in the vehicle
when the vehicle is being jacked.
350 WHAT TO DO IN EMERGENCIES

Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to
help prevent personal injury or damage to your
vehicle:
•Always park on a firm, level surface as far from
the edge of the roadway as possible before raising
the vehicle.
•Block the wheel diagonally opposite the wheel to
be raised.
•Set the parking brake firmly and set an automatic
transmission in PARK; a manual transmission in
REVERSE.
•Never start or run the engine with the vehicle on a
jack.
•Do not let anyone sit in the vehicle when it is on a
jack.(Continued)
WARNING! (Continued)
•Do not get under the vehicle when it is on a jack.
•Only use the jack in the positions indicated and
for lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
•To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
•Turn on the Hazard Warning flasher.
Jack Warning Label
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WHAT TO DO IN EMERGENCIES 351