JEEP WRANGLER 2011 JK / 3.G Repair Manual

WARNING!
Using a seat belt extender when not needed can
increase the risk of injury in an accident. Only use
when the seat belt is not long enough when it is worn
low and snug, and in the recommended seating
positions. Remove and stow the seat belt extender
when not needed.
Supplemental Restraint System (SRS) — Air Bags
This vehicle has Advanced Front Air Bags for both the
driver and right front passenger as a supplement to the
seat belt restraint systems. The driver’s Advanced Front
Air Bag is mounted in the steering wheel. The Advanced
Front Passenger Air Bag is mounted in the instrument
panel, above the glove compartment. The letters SRS are
embossed on the air bag covers.NOTE:
These air bags are certified to the new Federal
regulations for Advanced Air Bags.
Advanced Front Air Bag And Knee Bolster Locations
1 — Driver And Passenger Advanced Front Air Bags
2 — Knee Bolster
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59

The Advanced Front Air Bags have a multistage inflator
design. This allows the air bag to have different rates of
inflation that are based on the severity and type of
collision.
This vehicle may be equipped with driver and/or front
passenger seat track position sensors that may adjust the
inflation rate of the Advanced Front Air Bags based upon
seat position.
This vehicle may be equipped with a driver and/or front
passenger seat belt buckle switch that detects whether
the driver or front passenger seat belt is fastened. The
seat belt buckle switch may adjust the inflation rate of the
Advanced Front Air Bags.
NOTE:
•Air Bag covers may not be obvious in the interior trim,
but they will open during air bag deployment.
•After any accident, the vehicle should be taken to an
authorized dealer immediately.
Air Bag System Components
Your vehicle may be equipped with the following air bag
system components:
•Occupant Restraint Controller (ORC)
•Air Bag Warning Light
•Steering Wheel and Column
•Instrument Panel
•Knee Impact Bolster
•Driver Advanced Front Air Bag
•Passenger Advanced Front Air Bag
•Supplemental Seat-Mounted Side Air Bags (SAB)
•Front and Side Impact Sensors
•Front Seat Belt Pretensioners, Seat Belt Buckle Switch,
and Seat Track Position Sensors
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Advanced Front Air Bag Features
The Advanced Front Air Bag system has multistage
driver and front passenger air bags. This system provides
output appropriate to the severity and type of collision as
determined by the Occupant Restraint Controller (ORC),
which may receive information from the front impact
sensors.
The first stage inflator is triggered immediately during an
impact that requires air bag deployment. This low output
is used in less severe collisions. A higher energy output is
used for more severe collisions.
WARNING!
•No objects should be placed over or near the air bag
on the instrument panel, because any such objects
could cause harm if the vehicle is in a collision
severe enough to cause the air bag to inflate.
(Continued)
WARNING! (Continued)
•Do not put anything on or around the air bag
covers or attempt to open them manually. You may
damage the air bags and you could be injured
because the air bags may no longer be functional.
The protective covers for the air bag cushions are
designed to open only when the air bags are
inflating.
•If your vehicle is equipped with Supplemental
Seat-Mounted Side Air Bags (SAB), do not use
accessory seat covers or place objects between you
and the SAB; the performance could be adversely
affected and/or objects could be pushed into you,
causing serious injury.(Continued)
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WARNING! (Continued)
•If your vehicle is equipped with SAB, do not
attach cupholders or any other objects on or
around the door. The inflating SAB could drive the
objects into occupants, causing serious injury.
•Do not cover or place items on the air bag covers.
These items may cause serious injury during in-
flation.
•Do not drill, cut or tamper with the knee bolster in
any way.
•Do not mount any accessories to the knee bolster
such as alarm lights, stereos, citizen band radios,
etc.
Supplemental Seat-Mounted Side Air Bags
(SAB) — If Equipped
Supplemental Seat-Mounted Side Air Bags may provide
enhanced protection to help protect an occupant during a
side impact. The Supplemental Seat-Mounted Side Air
Bag is marked with an air bag label sewn into the
outboard side of the front seats.
Supplemental Seat-Mounted Side Air Bag Location
62 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

When the air bag deploys, it opens the seam between the
front and side of the seat’s trim cover. Each air bag
deploys independently; a left side impact deploys the left
air bag only and a right-side impact deploys the right air
bag only.
WARNING!
Being too close to the Supplemental Seat-Mounted
Side Air Bag during deployment could cause you to
be severely injured or killed.
Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and the front passenger, and position front occu-
pants for the best interaction with the Advanced Front
Air Bags.Along with seat belts and pretensioners, Advanced Front
Air Bags work with the knee bolsters to provide im-
proved protection for the driver and front passenger. Side
air bags also work with seat belts to improve occupant
protection.
Air Bag Deployment Sensors And Controls
Occupant Restraint Controller (ORC)
The
ORC is part of a Federally regulated safety system
required for this vehicle.
The ORC determines if deployment of the front and/or
side air bags is required in a frontal or side collision.
Based on the impact sensor’s signals, a central electronic
ORC deploys the Advanced Front Air Bags, Supplemen-
tal Seat-Mounted Side Air Bags (SAB) — if equipped, and
front seat belt pretensioners, as required, depending on
the severity and type of impact.
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Advanced Front Air Bags are designed to provide addi-
tional protection by supplementing the seat belts in
certain frontal collisions depending on the severity and
type of collision. Advanced Front Air Bags are not
expected to reduce the risk of injury in rear, side, or
rollover collisions.
The Advanced Front Air Bags will not deploy in all
frontal collisions, including some that may produce sub-
stantial vehicle damage — for example, some pole colli-
sions, truck underrides, and angle offset collisions. On
the other hand, depending on the type and location of
impact, Advanced Front Air Bags may deploy in crashes
with little vehicle front-end damage but that produce a
severe initial deceleration.
The side air bags will not deploy in all side collisions.
Side air bag deployment will depend on the severity and
type of collision.Because air bag sensors measure vehicle deceleration
over time, vehicle speed and damage by themselves are
not good indicators of whether or not an air bag should
have deployed.
Seat belts are necessary for your protection in all crashes,
and also are needed to help keep you in position, away
from an inflating air bag.
The ORC also monitors the readiness of the electronic
parts of the air bag system whenever the ignition switch
is in the START or ON/RUN positions. If the key is in the
LOCK position, in the ACC position, or not in the
ignition, the air bag system is not on and the air bags will
not inflate.
The ORC contains a backup power supply system that
may deploy the air bags even if the battery loses power or
it becomes disconnected prior to deployment.
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Also, the ORC turns on the Air Bag Warning
Light for four to eight seconds for a self-check
when the ignition is first turned on. After the
self-check, the Air Bag Warning Light will turn
off. If the ORC detects a malfunction in any part of the
system, it turns on the Air Bag Warning Light either
momentarily or continuously. A single chime will sound
if the light comes on again after initial startup.
It also includes diagnostics that will illuminate the instru-
ment cluster Air Bag Warning Light if a malfunction is
noted that could affect the air bag system. The diagnos-
tics also record the nature of the malfunction.WARNING!
Ignoring the Air Bag Warning Light in your instru-
ment panel could mean you won’t have the air bags
to protect you in a collision. If the light does not come
on as a bulb check when the ignition is first turned
on, stays on after you start the vehicle, or if it comes
on as you drive, have an authorized dealer service the
air bag system immediately.
Driver And Passenger Advanced Front Air Bag
Inflator Units
The Driver and Passenger Advanced Front Air Bag
Inflator Units are located in the center of the steering
wheel and on the right side of the instrument panel.
When the ORC detects a collision requiring the Ad-
vanced Front Air Bags, it signals the inflator units. A large
quantity of non-toxic gas is generated to inflate the
Advanced Front Air Bags. Different air bag inflation rates
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are possible, based on the collision type and severity. The
steering wheel hub trim cover and the upper right side of
the instrument panel separate and fold out of the way as
the air bags inflate to their full size. The air bags fully
inflate in about 50 to 70 milliseconds. This is about half of
the time it takes to blink your eyes. The air bags then
quickly deflate while helping to restrain the driver and
front passenger.
The Advanced Front Air Bag gas is vented through the
vent holes in the sides of the air bag. In this way, the air
bags do not interfere with your control of the vehicle.
Supplemental Seat-Mounted Side Air Bags (SAB)
Inflator Units — If Equipped
The Supplemental Seat-Mounted Side Air Bags Inflator
Units (if equipped) are designed to activate only in
certain side collisions.The ORC determines if a side collision requires the side
air bags to inflate, based on the severity and type of
collision.
Based on the severity and type of collision, the side air
bag inflator on the crash side of the vehicle is triggered,
releasing a quantity of non-toxic gas. The inflating SAB
exits through the seat seam into the space between the
occupant and the door. The SAB fully inflate in about 10
milliseconds. The side air bag moves at a very high speed
and with such a high force that it could injure you if you
are not seated properly, or if items are positioned in the
area where the side air bag inflates. This especially
applies to children.Knee Impact Bolsters
The Knee Impact Bolsters help protect the knees of the
driver and the front passenger, and position front occu-
pants for the best interaction with the Advanced Front
Air Bag.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Front And Side Impact Sensors
In front and side impacts, front and side impact sensors
can aid the ORC in determining the appropriate response
to certain impact events.
Enhanced Accident Response System
In the event of an impact causing air bag deployment, if
the communication network remains intact, and the
power remains intact, depending on the nature of the
event the ORC will determine whether to have the
Enhanced Accident Response System perform the follow-
ing functions:
•Cut off fuel to the engine.
•Flash hazard lights as long as the battery has power or
until the ignition key is turned off.
•Turn on the interior lights, which remain on as long as
the battery has power or until the ignition key is
removed.
•Unlock the doors automatically.
If A Deployment Occurs
The Advanced Front Air Bags are designed to deflate
immediately after deployment.
NOTE:Front and/or side air bags will not deploy in all
collisions. This does not mean something is wrong with
the air bag system.
If you do have a collision which deploys the air bags, any
or all of the following may occur:
•The nylon air bag material may sometimes cause
abrasions and/or skin reddening to the driver and
front passenger as the air bags deploy and unfold. The
abrasions are similar to friction rope burns or those
you might get sliding along a carpet or gymnasium
floor. They are not caused by contact with chemicals.
They are not permanent and normally heal quickly.
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However, if you haven’t healed significantly within a
few days, or if you have any blistering, see your doctor
immediately.
•As the air bags deflate you may see some smoke-like
particles. The particles are a normal by-product of the
process that generates the non-toxic gas used for air
bag inflation. These airborne particles may irritate the
skin, eyes, nose, or throat. If you have skin or eye
irritation, rinse the area with cool water. For nose or
throat irritation, move to fresh air. If the irritation
continues, see your doctor. If these particles settle on
your clothing, follow the garment manufacturer’s in-
structions for cleaning.
•Do not drive your vehicle after the air bags have
deployed. If you are involved in another collision, the
air bags will not be in place to protect you.
WARNING!
•Deployed air bags and seat belt pretensioners
cannot protect you in another collision. Have the
air bags, seat belt pretensioner, and seat belt
retractor assembly replaced by an authorized
dealer immediately. Also, have the Occupant Re-
straint Controller (ORC) system serviced as well.(Continued)
68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE