service reset JEEP WRANGLER 2009 JK / 3.G Owners Manual

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.Vehicle Odometer Messages
When the appropriate conditions exist, the following
odometer messages will display:
door
............................. Door Ajar
gATE ........................... Liftgate Ajar
LoW tirE ..................... LowTirePr essure
gASCAP ....................... Fuel Cap Fault
noFUSE .......................... Fuse Fault
CHAngE OIL ............... Oil Change Required
ESPOFF ...................... ESP Deactivated
LoW tirE
When the appropriate condition exists, the odometer
display will toggle between LoW and tirE for three
cycles.
208 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary repeat this procedure.
25. Malfunction Indicator Light (MIL) The Malfunction Indicator Light (MIL) is a part of
an Onboard Diagnostic System called OBD II that
monitors engine and automatic transmission con-
trol systems. The light will illuminate when the ignition
is in the ON position, before engine start. If the bulb does
not come on when turning the key from OFF to ON, have
the condition checked promptly.
Certain conditions such as a loose or missing gas cap,
poor quality fuel, etc. may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several typical driving styles. In most
situations, the vehicle will drive normally and will not
require towing.CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability. If the MIL is
flashing, severe catalytic converter damage and
power loss will soon occur. Immediate service is
required.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you
drive slowly or park over flammable substances such
as dry plants or wood or cardboard, etc. This could
result in death or serious injury to the driver, occu-
pants or others.
210 UNDERSTANDING YOUR INSTRUMENT PANEL

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improp-
erly installed, or damaged. A “gASCAP” message will be
displayed in the odometer. Tighten the gas cap until a
clickingsound is heard. This is an indication that the
gas cap is properly tightened. Press the odometer reset
button to turn the message off. If the problem persists,
402 MAINTAINING YOUR VEHICLE

Maintenance Schedule.................... 452
Malfunction Indicator Light
(Check Engine) ....................... 210,403
Manual, Service ......................... 477
Manual Transmission .................. 281,426
Fluid Level Check ..................... 426
Lubricant Selection ..................... 426
Shift Speeds .......................... 282
Master Cylinder (Brakes) .................. 422
Mini-Trip Computer ................... 212,213
Mirrors ................................ 81
Outside .............................. 82
Rearview ............................. 81
Modifications/Alterations, Vehicle ............. 8
Modular Hard Top ....................... 115
Monitor, Tire Pressure System ............... 351
Mopar Parts ......................... 404,476
Multi-Function Control Lever ................ 94New Vehicle Break-In Period
................ 73
Occupant Restraints ....................... 38
Octane Rating, Gasoline (Fuel) .............. 356
Odometer ............................. 207
Trip ............................. 206,207
Off-Pavement Driving (Off-Road) ............ 300
Off-Road Driving (Off-Pavement) ............ 300
Oil Change Indicator ..................... 209
Oil Change Indicator, Reset ................. 209
Oil, Engine ............................ 406
Capacity ............................ 447
Dipstick ............................. 406
Filter ............................... 408
Identification Logo ..................... 407
Materials Added to ..................... 408
Pressure Warning Light .................. 201
Recommendation ................... 407,447
Viscosity ......................... 408,447
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INDEX 491

TransmissionAutomatic ........................... 287
Maintenance ....................... 423,426
Manual ............................. 281
Range Indicator ....................... 206
Shifting ............................. 285
Transmitter Battery Service
(Remote Keyless Entry) .................... 23
Transporting Pets ........................ 73
Tread Wear Indicators .................... 347
Trip Computer ....................... 212,213
Trip Odometer .......................... 207
Trip Odometer Reset Button ................ 206
Turn Signals .................... 96,201,445,446
uconnect (Hands-Free Phone) ............... 82
Uniform Tire Quality Grades ................ 479
Upholstery Care ........................ 432 Vehicle Certification Label
................. 363
Vehicle Identification Number (VIN) ............ 8
Vehicle Loading ...................... 339,363
Vehicle Modifications/Alterations .............. 8
Vehicle Storage ....................... 271,442
Viscosity, Engine Oil ...................... 408
Warning Lights
(Instrument Cluster Description) ............. 200
Warnings and Cautions ..................... 8
Warranty Information ..................... 476
Washers, Windshield ..................... 412
Waxing and Polishing ..................... 429
Wheel and Wheel Trim .................... 431
Wheel and Wheel Trim Care ................ 431
Wheel Mounting ........................ 393
Wind Buffeting .......................... 37
Window Fogging ........................ 270
10
INDEX 497