JEEP WRANGLER UNLIMITED 2013 Repair Manual

WARNING! (Continued)• Failure to replace the belt and retractor assembly
could increase the risk of injury in collisions.
Seat Belt Pretensioners
The seat belts for both front seating positions are
equipped with pretensioning devices that are designed to
remove slack from the seat belt in the event of a collision.
These devices may improve the performance of the seat
belt by assuring that the belt is tight about the occupant
early in a collision. Pretensioners work for all size occu-
pants, including those in child restraints.
NOTE: These devices are not a substitute for proper seat
belt placement by the occupant. The seat belt still must be
worn snugly and positioned properly. The pretensioners are triggered by the Occupant Re-
straint Controller (ORC). Like the air bags, the preten-
sioners are single use items. A deployed pretensioner or
a deployed air bag must be replaced immediately.
Enhanced Seat Belt Use Reminder System
(BeltAlert  )
BeltAlert  is a feature intended to remind the driver and
front passenger (if equipped with front passenger
BeltAlert  ) to fasten their seat belts. The feature is active
whenever the ignition is on. If the driver or front seat
passenger is unbelted, the Seat Belt Reminder Light will
turn on and remain on until both front seat belts are
fastened.
2 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59

The BeltAlert  warning sequence begins after the vehicle
speed is over 5 mph (8 km/h), by blinking the Seat Belt
Reminder Light and sounding an intermittent chime.
Once the sequence starts, it will continue for the entire
duration or until the respective seatbelts are fastened.
After the sequence completes, the Seat Belt Reminder
Light remains illuminated until the respective seat belts
are fastened. The driver should instruct all other occu-
pants to fasten their seat belts. If a front seat belt is
unbuckled while traveling at speeds greater than 5 mph
(8 km/h), BeltAlert  will provide both audio and visual
notification. The front passenger seat BeltAlert  is not active when the
front passenger seat is unoccupied. BeltAlert  may be
triggered when an animal or heavy object is on the front
passenger seat or when the seat is folded flat (if
equipped). It is recommended that pets be restrained in
the rear seat in pet harnesses or pet carriers that are
secured by seat belts, and cargo is properly stowed.
BeltAlert  can be enabled or disabled by your authorized
dealer. Chrysler Group LLC does not recommend deac-
tivating BeltAlert  .
NOTE: Although BeltAlert  has been deactivated, the
Seat Belt Reminder Light will continue to illuminate
while the driver ’s or front passenger (if equipped with
BeltAlert  ) seat belt remains unfastened.60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Seat Belts And Pregnant Women
We recommend that pregnant women use seat belts
throughout their pregnancy. Keeping the mother safe is
the best way to keep the baby safe.
Pregnant women should wear the lap part of the belt
across the thighs and as snug across the hips as possible.
Keep the belt low so that it does not come across the
abdomen. That way the strong bones of the hips will take
the force if there is a collision.
Seat Belt Extender
If a seat belt is too short, even when fully extended
and when the adjustable upper shoulder belt anchorage
(if equipped) is in its lowest position, your authorized dealer can provide you with a seat belt extender. This
extender should be used only if the existing belt is not
long enough. When it is not required, remove the ex-
tender and store it.
WARNING!Using a seat belt extender when not needed can
increase the risk of injury in a collision. 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 store the extender when not
needed.
2 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 61

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.
Supplemental Restraint System (SRS) — Air Bags 1 — Driver And Passenger Advanced Front Air Bags
2 — Knee Bolster62 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

NOTE: The Driver and Passenger Advanced Front Air
Bags are certified to new Federal regulations.
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 several factors, including 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. This vehicle may be equipped with Supplemental Seat-
Mounted Side Air Bags (SAB). The SABs are marked with
an air bag label sewn into the outboard side of the front
seats.
NOTE:
• Air Bag covers may not be obvious in the interior trim,
but they will open during air bag deployment.
• After any collision, the vehicle should be taken to an
authorized dealer immediately.
2 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63

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 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)64 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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) 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 infla-
tion.
• 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.
2 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 65

Supplemental Seat-Mounted Side Air Bags
(SAB) — If Equipped
Supplemental Seat-Mounted Side Air Bags (SAB) may
provide enhanced protection to help protect an occupant
during a side impact. The SAB is marked with an air bag
label sewn into the outboard side of the front seats. 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.
NOTE:
• Air Bag covers may not be obvious in the interior trim,
but they will open during air bag deployment.
• Being too close to the SAB during deployment could
cause you to be severely injured or killed.
Knee Impact Bolsters
The Knee Impact Bolster helps protect the knees of the
front passenger, and position the front occupant for the
best interaction with the Advanced Front Air Bag.
Supplemental Seat-Mounted Side Air Bag Location66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Along with seat belts and pretensioners, Advanced Front
Air Bags work with the Supplemental Driver Side Knee
Air Bag and the passenger side knee bolster to provide
improved 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. 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
substantial vehicle damage — for example, some pole
collisions, 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.
2 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 67

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.
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.68 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE