2008 JEEP GRAND CHEROKEE instrument panel

TABLE OF CONTENTSSECTIONPAGE
1INTRODUCTION.............................................................3
2THINGS TO KNOW BEFORE STARTING YOUR VEHICLE..............................11
3UNDERSTANDING THE FEATURES OF YOUR VEHICLE...............................71
4UNDERSTANDING YOUR INSTRUMENT PANEL................................... 181
5STARTING AND OPERATING................................................. 271
6WHAT TO DO IN EMERGENCIES...............................................369
7MAINTAINING YOUR VEHICLE............................................... 383
8MAINTENANCE SCHEDULES.................................................. 443
9IF YOU NEED CONSUMER ASSISTANCE..........................................459
10INDEX....................................................................469
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WARNINGS AND CAUTIONS
This manual containsWARNINGSagainst operating
procedures, which could result in an accident or bodily
injury. It also containsCAUTIONSagainst procedures,
which could result in damage to your vehicle. If you do
not read this entire manual, you may miss important
information. Observe all Warnings and Cautions.
VEHICLE IDENTIFICATION NUMBER
The vehicle identification number (VIN) is found on a
label located on the left front corner of the instrument
panel pad, visible from outside of the vehicle through the
windshield. This number also appears on the Automobile
Information Disclosure Label affixed to a window on
your vehicle. Save this label for a convenient record of
your vehicle identification number and optional equip-
ment.NOTE:It is illegal to remove the VIN label.
8 INTRODUCTION

Driver And Front Passenger Supplemental
Restraint Systems (SRS)This vehicle has airbags for both the driver and right
front passenger as a supplement to the seat belt restraint
systems. The driver's front airbag is mounted in the
steering wheel. The passenger side airbag is mounted in
the instrument panel, above the glove compartment. The
words SRS/AIRBAG are embossed on the airbag covers.
NOTE:The front airbags are certified to the Federal
regulations that allow less forceful deployment.
The front airbags have a multistage inflator design. This
may allow the airbag to have different rates of inflation
that are based on collision severity and occupant size.
This vehicle is equipped with window bags to protect the
driver, front, and rear passengers sitting next to a win-
dow. They are located above the side windows. Their
covers are also labeled SRS/AIRBAG.
1 Ð Driver Airbag
2 Ð Passenger Airbag
3 Ð Knee Bolster 46 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE:Do not use a clothing bar mounted to the coat
hooks in this vehicle. A clothing bar will impede the
proper performance of the window bags.
The front airbags have a multi stage inflator design. This
allows the airbag to have different rates of inflation that
are based on collision severity. Along with the seat belts,
front airbags work with the instrument panel knee bol-
sters to provide improved protection for the driver and
front passenger. Window bags also work with seat belts
to improve occupant protection.
The seat belts are designed to protect you in many types
of collisions. The front airbags deploy in moderate to
severe frontal collisions.
The window bag on the crash side of the vehicle is
triggered in moderate to severe side collisions. In certain
types of collisions, both the front and side airbags may betriggered. But even in collisions where the airbags work,
you need the seat belts to keep you in the right position
for the airbags to protect you properly.
Here are some simple steps you can take to minimize the
risk of harm from a deploying airbag.
1. Children 12 years and under should always ride
buckled up in a rear seat.
Infants in rear facing child restraints shouldNEVERride
in the front seat of a vehicle with a passenger airbag. An
airbag deployment could cause severe injury or death to
infants in that position.
Children that are not big enough to properly wear the
vehicle seat belt should be secured in the rear seat, in a
child restraint or belt-positioning booster seat. Older
children who do not use child restraints or belt-
positioning booster seats should ride properly buckled
48 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
²Relying on the airbags alone could lead to more
severe injuries in a collision. The airbags work
with your seat belt to restrain you properly. In
some collisions the airbags won't deploy at all.
Always wear your seat belts even though you have
airbags.
²Being too close to the steering wheel or instrument
panel during airbag deployment could cause seri-
ous injury. Airbags need room to inflate. Sit back,
comfortably extending your arms to reach the
steering wheel or instrument panel.
²Side curtain airbags need room to inflate. Do not
lean against the door or window. Sit upright in the
center of the seat.
Airbag System Components
The airbag system consists of the following:
²Occupant Restraint Control Module
²Airbag Warning Light
²Driver Airbag
²Passenger Airbag
²Side Curtain Airbags above Side Windows
²Side Remote Acceleration Sensors
²Driver Side Seat Track Position Sensor
²Steering Wheel and Column
²Instrument Panel
²Interconnecting Wiring
²Knee Impact Bolsters
²Front Acceleration Sensors
²Driver and Front Passenger Seat Belt Pretensioners
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. Different airbag inflation rates
are possible, based on collision severity and occupant
size. The steering wheel hub trim cover and the upper
right side of the instrument panel separate and fold
out of the way as the bags inflate to their full size. The
bags fully inflate in about 50±70 milliseconds. This is
about half of the time it takes to blink your eyes. The
bags then quickly deflate while helping to restrain the
driver and front passenger.
The driver front airbag gas is vented through the vent
holes in the sides of the airbag. The passenger front
airbag gas is vented through the vent holes in the sides
of the airbag. In this way, the airbags do not interfere
with your control of the vehicle.²TheSide Impact SRS Side Curtain Airbagsare de-
signed to activate only in certain side or rollover
collisions. When the Occupant Restraint Control Mod-
ule (ORC) detects a collision requiring the window
bags to inflate, it signals the inflators on the crash side
of the vehicle both sides of the vehicle if equipped
with rollover sensing. A quantity of nontoxic gas is
generated to inflate the window bag. The inflating
window bag pushes the outside edge of the headliner
out of the way and covers the window. The airbag
inflates in about 30 milliseconds (about one-quarter of
the time it takes to blink your eyes) with enough force
to injure you if you are not belted and seated properly,
or if items are positioned in the area where the
window bag inflates. This especially applies to chil-
dren. The window bag is only about 3 inches (8 cm)
thick when it is inflated.
52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Maintaining Your Airbag System
WARNING!
²Modifications to any part of the airbag system could
cause it to fail when you need it. You could be
injured if the airbag system is not there to protect
you. Do not modify the components or wiring,
including adding any kind of badges or stickers to
the steering wheel hub trim cover or the upper right
side of the instrument panel. Do not modify the
front bumper or vehicle body structure.
²You need proper knee impact protection in a
collision. Do not mount or locate any aftermarket
equipment on or behind the knee bolsters.
²It is dangerous to try to repair any part of the
airbag system yourself. Be sure to tell anyone who
works on your vehicle that it has an airbag system.NOTE:
Perchlorate Material ± special handling may ap-
ply, See www.dtsc.ca.gov/hazardouswaste/perchlorate
Airbag Warning Light
You will want to have the airbag system ready to inflate
for your protection in an impact. The airbag system is
designed to be maintenance free. If any of the following
occurs, have an authorized dealer service the system
promptly:
²Does not come on during the 2.5 to 8 seconds after the
ignition switch is first turned on.
²Remains on after the 2.5 to 8 second interval.
²Flickers, or comes on and remains on for any period of
time while driving.
NOTE:If the speedometer, tachometer, or any engine
related gauges are not working, the airbag control mod-
ule may also be disabled. The airbags may not be ready
to inflate for your protection. Promptly check the fuse
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 55
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Seat belt assemblies must be replaced after an accident if
they have been damaged (bent retractor, torn webbing,
etc.). If there is any question regarding belt or retractor
condition, replace the belt.
Airbag Warning Light
The light should come on and remain on for 6 to 8
seconds as a bulb check when the ignition switch is first
turned on. If the bulb is not lit during starting, have it
replaced. If the light stays on or comes on while driving,
have the system checked by an authorized dealer.
Defrosters
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See your
authorized dealer for service if your defroster is inoper-
able.
Safety Checks You Should Make Outside The
Vehicle
Tires
Examine tires for excessive tread wear or uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread. Inspect for tread cuts or sidewall
cracks. Check wheel nuts for tightness and tires (includ-
ing spare) for proper pressure.
Lights
Have someone observe the operation of all exterior lights
while you work the controls. Check turn signal and high
beam indicator lights on the instrument panel.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
coolant, oil or other fluid leaks. Also, if gasoline fumes
are detected, the cause should be located and corrected
immediately.
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE