sensor JEEP WRANGLER 2012 JK / 3.G Owners Manual

▫Adjustable Upper Shoulder Belt Anchorage . . . 53
▫ Seat Belts In Passenger Seating Positions ..... 54
▫ Automatic Locking Retractor Mode (ALR) —
If Equipped ......................... 54
▫ Energy Management Feature ............. 55
▫ Seat Belt Pretensioners ................. 56
▫ Enhanced Seat Belt Use Reminder System
(BeltAlert) ......................... 56
▫ Seat Belts And Pregnant Women .......... 57
▫ Seat Belt Extender ..................... 58
▫ Supplemental Restraint System (SRS) — Air
Bags .............................. 58 ▫
Air Bag Deployment Sensors And Controls . . . 63
▫ Event Data Recorder (EDR) .............. 70
▫ Child Restraints ...................... 71
 Engine Break-In Recommendations .......... 84
 Safety Tips ........................... 85
▫ Transporting Passengers ................ 85
▫ Exhaust Gas ......................... 86
▫ Safety Checks You Should Make Inside The
Vehicle ............................. 87
▫ Periodic Safety Checks You Should Make
Outside The Vehicle ................... 89
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 13

NOTE:The Driver and Front Passenger Advanced Front
Air Bags are certified to the new Federal regulations for
Advanced Air Bags. 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.
Advanced Front Air Bag And Knee Bolster Locations
1 — Driver And Passenger Advanced Front Air Bags
2 — Knee Bolster
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59

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
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.
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

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)
TheORC 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
several factors, including 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 several factors,
including 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.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63

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.
64 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

The ORC determines if a side collision requires the side
air bags to inflate, based on several factors, including the
severity and type of collision.
Based on several factors, including 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.
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.
66 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system opera-
tion or sensor damage may result when using re-
placement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Do not use tire sealant from a can or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.
24. Odometer / Trip Odometer Display Area
The odometer display shows the total distance the vehicle
has been driven. The trip odometer shows individual trip
mileage. Refer to “Odometer / Trip Odometer / ECO
(Fuel Saver Indicator) Button” for additional information.
U.S. Federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. If your
odometer needs to be repaired or serviced, the repair
technician should leave the odometer reading the same
as it was before the repair or service. If s/he cannot do so,
then the odometer must be set at zero, and a sticker must
be placed in the door jamb stating what the mileage was
before the repair or service. It is a good idea for you to
make a record of the odometer reading before the repair/
service, so that you can be sure that it is properly reset, or
that the door jamb sticker is accurate if the odometer
must be reset at zero.
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UNDERSTANDING YOUR INSTRUMENT PANEL 277

•Magnetic materials should be kept away from the top
of the center of the instrument panel. This is where the
compass sensor is located.
To Set The Variance
Start the engine and leave the transmission gear selector
lever in the PARK position. Press and hold the RESETbutton on the steering wheel (for approximately ten
seconds) until the current variance zone number is dis-
played. To change the zone, press and release the STEP
button to increase the variance one step. Repeat as
necessary until the desired variance is achieved.
NOTE:
The factory default zone is 8. During program-
ming, the zone value will wrap around from zone 15 to
zone 1.
Manual Compass Calibration
If the compass appears erratic, inaccurate or abnormal,
you may wish to calibrate the compass. Prior to calibrat-
ing the compass, make sure the proper zone is selected.
1. Start the engine and leave the transmission in the
PARK position.
2. Press and hold the RESET button (for approximately
10 seconds) until the current variance zone number is
displayed.
Compass Variance Map
286 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:Magnetic materials should be kept away from
the top of the instrument panel; this is where the compass
sensor is located.
To Change The Compass Variance:
1. Turn the ignition switch RUN (it is not necessary to
start the engine). 2. Press the MENU button until Personal Settings
(Customer-Programmable Features) displays in the
EVIC.
3. Press the DOWN button until “Compass Variance”
message and the last variance zone number displays in
the EVIC.
4. Press and release the SELECT button until the proper
variance zone is selected according to the map.
5. Press and release the COMPASS button to exit.
Average Fuel Economy
Shows the average fuel economy since the last reset.
Average Fuel Economy can be reset by pressing and
holding the SELECT button (as prompted in the EVIC
display). Upon reset, the history information will be
erased, and the averaging will continue from the last fuel
average reading before the reset.
Compass Variance Map
296 UNDERSTANDING YOUR INSTRUMENT PANEL

WARNING!
Many factors, such as vehicle loading, road conditions
and driving conditions, influence the chance that
wheel lift or rollover may occur. Electronic Roll Miti-
gation (ERM) cannot prevent all wheel lift or rollovers,
especially those that involve leaving the roadway or
striking objects or other vehicles. The capabilities of an
ERM-equipped vehicle must never be exploited in a
reckless or dangerous manner which could jeopardize
the user’s safety or the safety of others.
Electronic Stability Control (ESC)
This system enhances directional control and stability of
the vehicle under various driving conditions. The ESC
corrects for over/under steering of the vehicle by apply-
ing the brake of the appropriate wheel to assist in
counteracting the over/under steer condition. Engine
power may also be reduced to help the vehicle maintain
the desired path.ESC uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESC applies the brake of the appro-
priate wheel to assist in counteracting the oversteer or
understeer condition.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
•Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
The “ESC Activation/Malfunction Indicator Light” (lo-
cated in the instrument cluster), starts to flash as soon as
the tires lose traction and the ESC system becomes active.
The “ESC Activation/Malfunction Indicator Light” also
flashes when TCS is active. If the “ESC Activation/
Malfunction Indicator Light” begins to flash during ac-
celeration, ease up on the accelerator and apply as little
throttle as possible. Be sure to adapt your speed and
driving to the prevailing road conditions.5
STARTING AND OPERATING 425