weight JEEP GRAND CHEROKEE 2006 WK / 3.G Owners Manual

Airbag System Components
The airbag system consists of the following:
•Occupant Restraint Control Module
•Airbag Warning Light
•Driver Airbag
•Passenger Airbag
•Side Curtain Airbags above Side Windows (If
Equipped)
•Side Remote Acceleration Sensors (If Equipped)
•Steering Wheel and Column
•Instrument Panel
•Interconnecting Wiring
•Knee Impact Bolsters
•Front Acceleration Sensors
•Driver and Front Passenger Seat Belt Pretensioner
•Occupant Classification System (OCS)—Front Pas-
senger Seat Only
Occupant Classification Module
Passenger Airbag Disable (PAD) Indicator Light
Weight Sensors
How The Airbag System Works
•
TheOccupant Restraint Control (ORC) Modulede-
termines if a frontal, side, or rollover collision is severe
enough to require the front and/or side airbags to
inflate. The front airbag inflators are designed to
provide different rates of airbag inflation from direc-
tion provided by the ORC. The ORC may also modify
the rate of inflation based on the occupant size pro-
vided by the Occupant Classification Module. The
ORC will detect roll overs, not rear impacts.
46 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

The“PAD Indicator Light”should not be illuminated
when teenagers, most children in a forward-facing
child restraint or booster seats, most children that can
properly wear the vehicle’s seat belt, and when an
adult passenger is properly seated in the front passen-
ger seat. In this case, the airbag is ready to be inflated
if a collision requiring an airbag occurs.
For almost all properly installed rear facing child re-
straints, the“PAD Indicator Light”will be illuminated
indicating that the front passenger airbag is turned off
and will not inflate. If the“PAD Indicator Light”is not
illuminated,DO NOTassume the airbag is turned off
and move the child restraint to the rear seat. A deploying
passenger airbag can cause death or serious injury to a
child in a rear facing infant seat.NOTE:Even though this vehicle is equipped with an
Occupant Classification System, children 12 years and
under should always ride buckled up in a rear seat in an
appropriate child restraint.
Front Passenger
Seat OccupantPassenger Air-
bag Disable
(PAD) Indicator
LightAirbag Status
Adult OFF ON
Grocery Bags,
Heavy Briefcases
and Other Rela-
tively Light Ob-
jectsON OFF
Empty or Very
Small ObjectsOFF* OFF
* Since the system senses weight, some small objects
will turn the PAD Indicator Light on.
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The OCS classifies an occupant using weight sensors
mounted in the base of the front passenger seat. Any
weight on the seat will be sensed by the system. Objects
hanging on the seat or other passengers pushing down
on the seat will also be sensed. The weight of an adult
will cause the system to turn the airbag on. In this case,
the OCS has classified the occupant of the seat as an
adult. An adult occupant needs to sit in a normal position
(with their feet on or near the floor) in order to be
properly classified. Reclining the seat back too far may
change how an occupant is classified by the OCS.
Drivers and adult passengers should verify that the
“PAD Indicator Light”is not illuminated when an adult
is riding in the front passenger seat. If an adult occu-
pant’s weight is transferred to another part of the vehicle
(like the door or instrument panel), the weight sensors in
the seat may not properly classify the occupant. Objects
lodged under the seat or between the seat and the center
console can prevent the occupant’s weight from beingmeasured properly and may result in the occupant being
improperly classified. Ensure that the front passenger
seat back does not touch anything placed on the back seat
because this can also affect occupant classification. Also,
if you fold down the rear seat check to be sure it doesn’t
touch the front passenger seat.
If the front passenger seat is damaged in any way, it
should only be serviced by an authorized dealer. If the
seat is removed (or even if the seat attachment bolts are
loosened or tightened in any way), take the vehicle to an
authorized dealer.
If there is a fault present in the OCS, the“Airbag Warning
Light”(a red light located in the center of the instrument
cluster directly in front of the driver) will be turned on.
This indicates that you should take the vehicle to an
authorized dealer. The“Airbag Warning Light”is turned
on whenever there is fault that can affect the operation of
the airbag system. If there is a fault present in the OCS,
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

both the“PAD Indicator Light”and the“Airbag Warning
Light”are illuminated to show that the passenger airbag
is turned off until the fault is cleared. If an object is
lodged under the seat and interferes with operation of
the weight sensors, a fault will occur which turns on both
the“PAD Indicator Light”and the“Airbag Warning
Light.”Once the lodged object is removed, the fault will
be automatically cleared after a short period of time.
•TheDriver 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 isabout 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.•TheOccupant Classification Module (OCM)is lo-
cated beneath the front passenger seat. The OCM
classifies the occupant into categories based on the
measurements made by the seat weight sensors. The
OCM communicates with the Occupant Restraint Con-
trol (ORC) Module. The ORC uses the occupant cat-
egory to determine whether the front passenger airbag
should be turned off. It also determines the rate of
airbag inflation during a collision.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 51
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•Your vehicle has fourWeight Sensorslocated between
the seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
•TheSide Impact SRS Side Curtain Airbagsare de-
signed to activate only in certain side or rollover
collisions. When the ORC (with side impact option)
detects a collision requiring the side curtain airbag to
inflate, it signals the inflators on the crash side of the
vehicle. A quantity of nontoxic gas is generated to
inflate the side curtain airbag. The inflating side cur-
tain airbag 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 sidecurtain airbag inflates. This especially applies to chil-
dren. The side curtain airbag is only about 3
12inches
(9 cm) thick when it is inflated.
•TheKnee Impact Bolstershelp protect the knees of
the driver and the front passenger, and position every-
one for the best interaction with the front airbag.
The front passenger seat assembly contains critical com-
ponents that affect the front passenger airbag deploy-
ment. Correctly functioning front passenger seat compo-
nents are critical for the Occupant Classification System
(OCS) to properly classify the front passenger and calcu-
late the proper airbag deployment. Do not make any
modifications to the front passenger seat components,
assembly, or to the seat cover.
The following requirements must be strictly adhered to:
•Do not modify the front passenger seat assembly or
components in any way.
52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Deployed airbags and seat belt pretensioners cannot
protect you in another collision. Have the airbags,
seat belt pretensioner, and seat belt retractor assem-
bly, replaced by an authorized dealer as soon as
possible. Also, have the Occupant Classification
System serviced as well.
Enhanced Accident Response Feature
If the airbags deploy after an impact and the electrical
system remains functional, vehicles equipped with
power door locks will unlock automatically. In addition,
approximately 5 seconds after the vehicle has stopped
moving, the interior lights will illuminate to aid visibility.
NOTE:The interior lights can only be deactivated if the
key is removed from the ignition switch or the vehicle is
driven.
Maintaining Your Airbag System
WARNING!
•Modifications 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.
•Do not attempt to modify any part of your advanced airbag system.
The airbag may inflate accidentally or may not function properly if
modifications are made. Take your vehicle to an authorized dealer for
any advanced airbag system service. If your seat including your trim
cover and cushion needs to be serviced in any way (including removal
or loosening/tightening of seat attachment bolts), take the vehicle to
your authorized dealer. Only manufacturer approved seat accessories
may be used. If it is necessary to modify an advanced airbag system
for persons with disabilities, contact your authorized dealer.
•Do not place or hang any items such as add-on video players on the
right front passenger seat back. The additional weight may cause the
Occupant Classification System to be unable to correctly classify the
right front occupant. This could allow the passenger frontal airbag to
inflate when it is not desired.
•You need proper knee impact protection in a collision. Do not mount
or locate any aftermarket equipment on or behind the knee bolsters.
•It 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.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 55
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•The infant carrier is only used rearward-facing in the
vehicle. It is recommended for children who weigh up
to about 20 lbs (9 kg).“Convertible”child seats often
have a higher weight limit in the rearward-facing
direction than infant carriers do, so they can be used
rearward-facing by children who weigh more than 20
lbs (9 kg) but are less than one year old. Both types of
child restraints are held in the vehicle by the lap/
shoulder belt or the LATCH child restraint anchorage
system (Refer to LATCH—Child Seat Anchorage
System in this section.)
•Rearward-facing child seats mustNEVERbe used in
the front seat of a vehicle with the front passenger
airbag unless the airbag is turned off. An airbag
deployment could cause severe injury or death to
infants in this position.
WARNING!
•Improper installation can lead to failure of an
infant or child restraint. It could come loose in a
collision. The child could be badly injured or
killed. Follow the manufacturer’s directions ex-
actly when installing an infant or child restraint.
•A rearward facing infant restraint should only be
used in a rear seat. A rearward facing infant
restraint in the front seat may be struck by a
deploying passenger airbag which may cause se-
vere or fatal injury to the infant.
Here are some tips for getting the most out of your child
restraint:
•Before buying any restraint system, make sure that it
has a label certifying that it meets all applicable Safety
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59
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Standards. The manufacturer also recommends that
you try a child restraint in the vehicle seats where you
will use it before you buy it.
•The restraint must be appropriate for your child’s
weight and height. Check the label on the restraint for
weight and height limits.
•Carefully follow the instructions that come with the
restraint. If you install the restraint improperly, it may
not work when you need it.
•Except for the second row center seating position, all
passenger seat belts are equipped with cinching latch
plates. The second row center position has an auto-
matic locking retractor identified by a distinctive label.
Both types of seat belts are designed to keep the lap
portion tight around the child restraint so that it is not
necessary to use a locking clip. If the seat belt has a
cinching latch plate, pulling up on the shoulder por-
tion of the lap/shoulder belt will tighten the belt (thecinching latch plate will keep the belt tight, however,
any seat belt system will loosen with time, so check the
belt occasionally and pull it tight if necessary). For the
second row center seat belt with the automatic locking
retractor, pull the belt from the retractor until there is
enough to allow you to pass through the child restraint
and slide the latch plate into the buckle. Then, pull the
belt until it is fully extracted from the retractor. Allow
the belt to return to the retractor, pulling on the excess
webbing to tighten the lap portion about the child
restraint. For additional information, refer toAuto-
matic Locking Modeearlier in this section.
•In the rear seat, you may have trouble tightening the
lap/shoulder belt on the child restraint because the
buckle or latch plate is too close to the belt path
opening on the restraint. Disconnect the latch plate
from the buckle and twist the short buckle-end belt
several times to shorten it. Insert the latch plate into
the buckle with the release button facing out.
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
Cargo tie-down hooks are not safe anchors for a
child seat tether strap. In a sudden stop or collision
a hook could pull loose and allow the child seat to
come loose. A child could be badly injured. Use only
the anchors provided for child seat tethers.
WARNING!
The weight and position of cargo and passengers can
change the vehicle center of gravity and vehicle
handling. To avoid loss of control resulting in per-
sonal injury, follow these guidelines for loading
your vehicle:
•Do not carry loads which exceed the load limits
described on the label attached to the left door or left
door center pillar.
•Always place cargo evenly on the cargo floor. Put
heavier objects as low and as far forward as possible.
•Place as much cargo as possible in front of the rear
axle. Too much weight or improperly placed weight
over or behind the rear axle can cause the rear of the
vehicle to sway.
•Do not pile luggage or cargo higher than the top of the
seatback. This could impair visibility or become a
dangerous projectile in a sudden stop or collision.
168 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Tire Pressure Monitor System (TPMS)........294
▫Base System.........................294
▫Premium System......................296
▫General Information...................300

Tire Chains...........................300

Tire Rotation Recommendations............301

Fuel Requirements......................302
▫3.7/4.7L Engines (If Equipped)............302
▫5.7L Engines (If Equipped)...............302
▫Reformulated Gasoline.................303
▫Gasoline/Oxygenate Blends..............303
▫MMT In Gasoline.....................304
▫Materials Added To Fuel................304▫Fuel System Cautions..................304
▫Carbon Monoxide Warnings..............305

Fuel Tank Filler Cap (Gas Cap).............306
▫Loose Fuel Filler Cap Message............307

Trailer Towing.........................308
▫Common Towing Definitions.............309
▫Trailer Hitch Classification...............311
▫Trailer Towing Weights
(Maximum Trailer Weight Ratings).........312
▫Trailer And Tongue Weight..............313
▫Towing Requirements..................314
▫Towing Tips.........................318

Recreational Towing (Behind Motorhome, Etc.) . . 320
STARTING AND OPERATING 249
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