2012 JEEP GRAND CHEROKEE ignition

6
WHAT TO DO IN EMERGENCIES
•HAZARD WARNING FLASHERS ................. 282
• IF YOUR ENGINE OVERHEATS .................. 282
• JACKING AND TIRE CHANGING ................. 283
• Jack Location .......................... 283
• Spare Tire Stowage ....................... 283
• Preparations For Jacking ................... 283
• Jacking Instructions ...................... 284
• Road Tire Installation ...................... 287
• JUMP-STARTING .......................... 287
• Preparations For Jump-Start ................. 288
• Jump-Starting Procedure ................... 288
• FREEING A STUCK VEHICLE ................... 289
• TOW EYES .............................. 290
• SHIFT LEVER OVERRIDE ..................... 290
• TOWING A DISABLED VEHICLE ................. 291
• Towing Without The Ignition Key Fob ............ 293
• Four-Wheel Drive Vehicles ................... 293
281

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
flashers.
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 flashers will con-
tinue to operate even though the ignition is
placed in the OFF position.
NOTE:
With extended use the Hazard Warning
flashers 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.
282

JACKING AND TIRE CHANGING
WARNING!
•Do not attempt to change a tire on the side
of the vehicle close to moving traffic. Pull
far enough off the road to avoid the danger
of being hit when operating the jack or
changing the wheel.
• Being under a jacked-up vehicle is danger-
ous. The vehicle could slip off the jack and
fall on you. You could be crushed. Never
put 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.
• Never start or run the engine while the
vehicle is on a jack.
• 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 and is secured to the body
with a special wing nut.
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.
Jack Storage Location
283

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.
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.
Remote Battery Posts
1 — Remote Positive (+) Post
(covered with protective cap)
2 — Remote Negative (-) Post
288

Towing ConditionWheels OFF the Ground 4WD Models
Flat Tow NONESee instructions in “Recreational Towing” under “Starting and Operating”
•
Transmission in PARK
• Transfer 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 bum-
pers 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/OFF position.
292

Towing Without The Ignition Key
Fob
Special care must be taken when the vehicle is
towed with the ignition in the LOCK/OFF posi-
tion. The only approved method of towing with-
out the ignition key is with a flatbed truck.
Proper towing equipment is necessary to pre-
vent 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 detailed instructions.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 can
cause severe damage to the transmission
and/or transfer case. Such damage is not
covered by the New Vehicle Limited War-
ranty.
293

CAUTION!
Damage to the catalytic converter can result if
your vehicle is not kept in proper operating
condition. In the event of engine malfunction,
particularly involving engine misfire or other
apparent loss of performance, have your ve-
hicle serviced promptly. Continued operation
of your vehicle with a severe malfunction
could cause the converter to overheat, result-
ing in possible damage to the converter and
vehicle.
NOTE:
Intentional tampering with emissions con-
trol systems can result in civil penalties
being assessed against you.WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such ma-
terials might be grass or leaves coming into
contact with your exhaust system. Do not park
or operate your vehicle in areas where your
exhaust system can contact anything that can
burn.
In unusual situations involving grossly malfunc-
tioning engine operation, a scorching odor may
suggest severe and abnormal catalyst over-
heating. If this occurs, stop the vehicle, turn off
the engine and allow it to cool. Service, includ-
ing a tuneup to manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
• Do not shut off the engine or interrupt the
ignition, when the transmission is in gear and
the vehicle is in motion.
• Do not try to start the engine by pushing or
towing the vehicle. •
Do not idle the engine with any spark plug
wires disconnected or removed, such as
when diagnostic testing, or for prolonged
periods during very rough idle or malfunc-
tioning operating conditions.
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.
Engine Coolant Checks
Check the engine coolant (antifreeze) protec-
tion every 12 months (before the onset of
freezing weather, where applicable). If the en-
gine coolant (antifreeze) is dirty or rusty in
appearance, the system should be drained,
flushed and refilled with fresh engine coolant
(antifreeze). Check the front of the A/C con-
denser for any accumulation of bugs, leaves,
308

Cavity Car-tridgeFuse Mini
Fuse Description
J01 40 Amp Green Air Suspension
J02 30 Amp Pink Power Liftgate
Module
J03 30 Amp Pink Trailer Tow
J04 25 Amp Natural Driver Door
Node
J05 25 Amp Natural Passenger Door
Node
J06 40 Amp Green Antilock Brakes
Pump/Stability
Control System
J07 30 Amp Pink Antilock Brakes
Valve/Stability
Control System
J08 40 Amp Green Power Seat
J09 30 Amp Pink E-Brake
J10 30 Amp Pink Headlamp Wash
Relay ContactCavity Car-
tridgeFuse Mini
Fuse Description
J11 30 Amp Pink Drive Train Con-
trol Module
J12 30 Amp Pink Rear Defroster
J13 60 Amp Yellow Main Ignition Off
Draw (IOD)
J14 20 Amp Blue Trailer Tow
Lamps/Park
Lamps
J15 40 Amp Green Front Cabin Fan/
Blower
J17 40 Amp Green Starter Motor
Solenoid
J18 20 Amp Blue Powertrain Con-
trol Module/
Powertrain Con-
trol Module
Transmission
RangeCavity Car-
tridgeFuse Mini
Fuse Description
J19 60 Amp Yellow Radiator Fan
Motor HI/
Radiator Fan
Motor Low
J20 30 Amp Pink Front Wiper
J21 20 Amp Blue Front/Rear
Washer Control
J22 25 Amp Natural Sunroof Module
M1 15 Amp
Blue Stop Lamps
M2 20 Amp
Yellow Electronic Limit
Slip Differential/
Air Suspension
M3 20 Amp
Yellow Liftgate/Headrest
M5 25 Amp
Natural 115V AC Power
Inverter
M6 20 Amp
Yellow Cigar Lighter
319