JEEP GRAND CHEROKEE 2010 Owner handbook (in English)

6
WHAT TO DO IN EMERGENCIES
•HAZARD WARNING FLASHERS ................. 258
• IF YOUR ENGINE OVERHEATS .................. 258
• JACKING AND TIRE CHANGING ................. 259
• Jack Location .......................... 259
• Spare Tire Stowage ....................... 259
• Preparations for Jacking .................... 259
• Jacking Instructions ...................... 260
• JUMP-STARTING .......................... 262
• Preparations for Jump-Start .................. 262
• Jump-Starting Procedure ................... 263
• TOW EYES .............................. 264
• TOWING A DISABLED VEHICLE ................. 265
• Towing Without the Ignition Key Fob ............ 266
• Four-Wheel Drive Vehicles ................... 266
257

HAZARD WARNING FLASHERSThe 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 it
should not be used when the vehicle is in
motion. Use it when your vehicle is disabled
and it is creating a safety hazard for other
motorists.
When you must leave the vehicle to seek assis-
tance, the Hazard Warning flasher will continue
to operate even though the ignition is placed in
the OFF position.
NOTE:
With extended use the Hazard Warning
flasher may wear down your battery.IF YOUR ENGINE OVERHEATSIn any of the following situations, you can
reduce the potential for overheating by taking
the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the
transmission in NEUTRAL, but do not in-
crease the engine idle speed.
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 supple-
ment to the radiator and aids in removing
heat from the engine cooling system.CAUTION!
Driving with a hot cooling system could dam-
age 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.
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.
258

JACKING AND TIRE CHANGING
WARNING!
•Getting under a jacked-up vehicle is dan-
gerous. 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 pur-
poses. The vehicle should be jacked on a
firm, level surface only. Avoid ice or slippery
areas.
Jack LocationThe scissor-type jack and tire changing tools
are located in rear cargo area, below the load
floor.
Spare Tire StowageThe spare tire is stowed under the load floor in
the rear cargo area.
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. Turn on the Hazard Warning flasher.
3. Set the parking brake.
4. Place the shift lever into PARK.
5. Turn the ignition OFF.
6. Block both the front
and rear of the wheel
diagonally opposite of
the jacking 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.
7. For vehicle equipped with Quadra-Lift refer
to “Quadra-Lift — If Equipped” in “Starting and
Operating” for further information on disabling
automatic leveling.
Jack Storage Location
259

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.
• Turn on the Hazard Warning flasher.
• Block the wheel diagonally opposite the
wheel to be raised.
• Set the parking brake firmly and set an
automatic transmission in PARK.
• 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.
• 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.
(Continued)
WARNING!(Continued)
• If working on or near a roadway, be ex-
tremely 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.
1. Remove the spare tire, jack, and tools from
storage.
2. Loosen (but do not remove) the wheel lug
nuts by turning them to the left, one turn, while
the wheel is still on the ground.
3. Assemble the jack and jacking tools. 4. For a front tire, place the jack and protective
cap on the body flange just behind the front tire
(as indicated by the triangular lift point symbol
on the sill molding).
Do not raise the vehicle
until you are sure the jack is fully engaged.
Jack Warning Label
Jack and Tool Assembly
260

5. For a rear tire, place the jack and protective
cap in the slot on the rear tie-down bracket, just
forward of the rear tire (as indicated by the
triangular lift point symbol on the sill molding).
Do not raise the vehicle until you are sure
the jack is fully engaged.6. Raise the vehicle by turning the jack screw
clockwise. Raise the vehicle only until the tire
just clears the surface and enough clearance is
obtained to install the spare tire. Minimum tire
lift provides maximum stability.
WARNING!
Raising the vehicle higher than necessary can
make the vehicle less stable. It could slip off
the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.7. Remove the lug nuts and wheel.
8. Position the spare wheel/tire on the vehicle
and install the lug nuts with the cone-shaped
end toward the wheel. Lightly tighten the nuts.
To avoid the risk of forcing the vehicle off the
jack, do not tighten the nuts fully until the
vehicle has been lowered.
9. Lower the vehicle by turning the jack screw
counterclockwise, and remove the jack and
wheel blocks.
10. Finish tightening the lug nuts. Push down
on the wrench while tightening for increased
leverage. Alternate nuts until each nut has
been tightened twice. The correct 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.
11. Lower the jack to the fully closed position
and return it and the tools to the proper posi-
tions in the foam tray.
Front Jacking LocationRear Jacking Location
261

12. Securely store the road wheel and jack in
the cargo area.
13. Have the aluminum road wheel and tire
repaired as soon as possible and properly
secure the spare tire, jack and tool kit.
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.
JUMP-STARTINGIf 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 instruc-
tions and precautions.
CAUTION!
Do not use a portable battery booster pack or
any other booster source with a system volt-
age greater than 12 Volts or damage to the
battery, starter motor, alternator or electrical
system may occur.
WARNING!
Do not attempt jump-starting if the battery is
frozen. It could rupture or explode and cause
personal injury.
Preparations for Jump-StartThe battery in your vehicle is located under the
passenger’s front seat. There are remote loca-
tions located under the hood to assist in jump-
starting.
Stowed Spare
Remote Battery Posts
1 — Remote Positive(+) Post
(covered with protective cap)
2 — Remote Negative (-) Post
262

WARNING!
•Take care to avoid the radiator cooling fan
whenever the hood is raised. It can start
anytime the ignition switch is on. You can
be injured by moving fan blades.
• Remove any metal jewelry such as watch
bands or bracelets that might make an
inadvertent electrical contact. You could be
seriously injured.
• Batteries contain sulfuric acid that can burn
your skin or eyes and generate hydrogen
gas which is flammable and explosive.
Keep open flames or sparks away from the
battery.
1. Set the parking brake, shift the automatic
transmission into PARK and turn the ignition to
LOCK.
2. Turn off the heater, radio, and all unneces-
sary electrical accessories.
3. Remove the protective cover over the re-
mote positive (+)battery post. Pull upward on
the cover to remove it. 4. If using another vehicle to jump-start the
battery, park the vehicle within the jumper
cables reach, set the parking brake and make
sure the ignition is OFF.
WARNING!
Do not allow vehicles to touch each other as
this could establish a ground connection and
personal injury could result.
Jump-Starting Procedure
WARNING!
Failure to follow this procedure could result in
personal injury or property damage due to
battery explosion.
CAUTION!
Failure to follow these procedures could result
in damage to the charging system of the
booster vehicle or the discharged vehicle.
1. Connect the positive
(+)end of the jumper
cable to the remote positive (+)post of the
discharged vehicle.
2. Connect the opposite end of the positive (+)
jumper cable to the positive (+)post of the
booster battery.
3. Connect the negative end (-)of the jumper
cable to the negative (-)post of the booster
battery.
4. Connect the opposite end of the negative (-)
jumper cable to the remote negative (-)post of
the vehicle with the discharged battery.
WARNING!
Do not connect the cable to the negative post
(-) of the discharged battery. The resulting
electrical spark could cause the battery to
explode and could result in personal injury.
5. Start the engine in the vehicle that has the
booster battery, let the engine idle a few min-
utes, and then start the engine in the vehicle
with the discharged battery.
263

Once the engine is started, remove the jumper
cables in the reverse sequence:
6. Disconnect the negative(-)jumper cable
from the remote negative (-)post of the dis-
charged vehicle.
7. Disconnect the negative end (-)of the
jumper cable from the negative (-)post of the
booster battery.
8. Disconnect the opposite end of the positive
(+) jumper cable from the positive (+)post of
the booster battery.
9. Disconnect the positive (+)end of the
jumper cable from the remote positive (+)post
of the discharged vehicle.
10. Reinstall the protective cover over the re-
mote positive (+)battery post of the discharged
vehicle. If frequent jump-starting is required to start your
vehicle you should have the battery and charg-
ing system inspected at your authorized dealer.
CAUTION!
Accessories that can be plugged into the
vehicle power outlets draw power from the
vehicle’s battery, even when not in use (i.e.,
cellular phones, etc.). Eventually, if plugged in
long enough, the vehicle’s battery will dis-
charge sufficiently to degrade battery life
and/or prevent the engine from starting.
TOW EYESYour vehicle is equipped with tow eyes, which
are mounted in the front and the rear.
CAUTION!
Tow eyes are for emergency use only, to
rescue a vehicle stranded off road. Do not use
tow eyes for tow truck hookup or highway
towing. You could damage your vehicle. Tow
straps are recommended when towing the
vehicle; chains may cause vehicle damage.
WARNING!
Stand clear of vehicles when pulling with tow
eyes. Tow straps and chains may break, caus-
ing serious injury.
264

TOWING A DISABLED VEHICLEThis section describes procedures for towing a disabled vehicle using a commercial wrecker service. If the transmission and drivetrain are operable,
disabled vehicles may also be towed as described under “Recreational Towing” in the “Starting and Operating” section.
Towing Condition Wheels OFF the Ground 4WD Models
Flat Tow NONE See instructions in “Recreational Towing” under “Starting and Operating”
•
Trans in PARK
• T/case in NEUTRAL
• To w i n forward direction
Wheel Lift or Dolly Tow Front
NOT ALLOWED
Rear NOT ALLOWED
Flatbed ALL BEST METHOD
Proper towing or lifting equipment is required to
prevent damage to your vehicle. Use only tow
bars and other equipment designed for the
purpose, following equipment manufacturer’s
instructions. Use of safety chains is mandatory.
Attach a tow bar or other towing device to main
structural members of the vehicle, not to
bumpers or associated brackets. State and
local laws applying to vehicles under tow must
be observed. If you must use the accessories (wipers, de-
frosters, etc.) while being towed, the ignition
must be in the ON/RUN position, not the ACC
position.
If the vehicle’s battery is discharged, see
Brake/Transmission Interlock Manual Override
(under Starting and Operating, Automatic
Transmission) for instructions on shifting the
automatic transmission out of the PARK posi-
tion for towing.
CAUTION!
•
Do not attempt to use sling type equipment
when towing. When securing the vehicle to
a flat bed truck, do not attach to front or rear
suspension components. Damage to your
vehicle may result from improper towing.
• If the vehicle being towed requires steering,
the ignition must be in the ON/RUN or ACC
position, not in the LOCK position.
265

Towing Without the Ignition Key FobSpecial care must be taken when the vehicle is
towed with the ignition in the LOCK position.
The only approved method of towing without
the ignition key is with a flatbed truck. Proper
towing equipment is necessary to prevent
damage to the vehicle.Four-Wheel Drive VehiclesThe manufacturer recommends towing with all
wheelsOFFthe ground. Acceptable methods
are to tow the vehicle on a flatbed or with one
end of vehicle raised and the opposite end on
a towing dolly.
If flatbed equipment is not available, and the
transfer case is operable, the vehicle may be
towed (in the forward direction, with ALL
wheels on the ground), IFthe transfer case is in
NEUTRAL and the transmission is in PARK.
Refer to “Recreational Towing” in “Starting and
Operating” for further information.CAUTION!
• Front or rear wheel lifts should not be used.
Internal damage to the transmission or
transfer case will occur if a front or rear
wheel lift is used when towing.
• Failure to follow these towing methods
could result in damage to the transmission
and/or transfer case. Such damage is not
covered by the New Vehicle Limited War-
ranty.
266