2008 JEEP WRANGLER UNLIMITED tire type

•Airbag deployment level (if applicable)
•Impact acceleration and angle
•Seat belt status
•Brake status (service and parking brakes)
•Accelerator status (including vehicle speed)
•Engine control status (including engine speed)
•Transmission gear selection
•Cruise control status
•Traction/stability control status
•Tire pressure monitoring system (TPMS) status
Child Restraint
Everyone in your vehicle needs to be buckled up at all
times — babies and children, too. Every state in the
United States and all Canadian provinces require that
small children ride in proper restraint systems. This is the
law, and you can be prosecuted for ignoring it.
Children 12 years and under should ride properly buck-
led up in a rear seat, if available. According to crash
statistics, children are safer when properly restrained in
the rear seats, rather than in the front.
There are different sizes and types of restraints for
children from newborn size to the child almost large
enough for an adult safety belt. Always check the child
seat owner’s manual to ensure you have the correct seat
for your child. Use the restraint that is correct for your
child.
62 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

rear wheels to rotate at the same speed. This is accom-
plished by simply moving the shift lever to one of these
positions. The 4H and 4L positions are intended for loose,
slippery road surfaces only, and not intended for normal
driving. Driving in the 4H and 4L positions on hard
surfaced roads will cause increased tire wear and damage
to the driveline components.
The 4WD Indicator Light (located in the instrument
cluster) alerts the driver that the vehicle is in four-wheel
drive, and the front and rear driveshafts are locked
together. The light will illuminate when the transfer case
is shifted into the 4H position.
NOTE:Do not attempt to shift when only the front or
rear wheels are spinning. The transfer case is not
equipped with a synchronizer, and the front and rear
driveshaft speeds must be equal for a shift to take place.
Shifting while only the front or rear wheels are spinning
can cause damage to the transfer case. When operating your vehicle in 4L, the engine speed will
be approximately three times (four times for Rubicon
models) that of the 2H or 4H positions at a given road
speed. Take care not to overspeed the engine.
Proper operation of four-wheel drive vehicles depends
on tires of equal size, type, and circumference on each
wheel. Any difference will adversely affect shifting and
cause damage to the transfer case.
Because four-wheel drive provides improved traction,
there is a tendency to exceed safe turning and stopping
speeds. Do not go faster than road conditions permit.
286 STARTING AND OPERATING

Follow the recommended tire rotation frequency for your
type of driving. Refer to the “Maintenance Schedule” in
Section 8 of this manual. More frequent rotation is
permissible if desired. The reasons for any rapid or
unusual wear should be corrected prior to rotation being
performed.
The suggested rotation method is the “forward-cross”
shown in the following diagram.TIRE PRESSURE MONITOR SYSTEM (TPMS)
The Tire Pressure Monitoring System (TPMS) will warn
the driver of a low tire pressure based on the vehicle
recommended cold placard pressure.
The tire pressure will vary with temperature by about 1
psi (6.9 kPa) for every 12°F (6.5°C). This means that when
the outside temperature decreases, the tire pressure will
decrease. Tire pressure should always be set based on
cold inflation tire pressure. This is defined as the tire
pressure after a vehicle has not been driven for more than
three hours, or driven less than 1 mi (1 km) after a three
hour period.Refer to the “Tires — General Informa-
tion” in this section for information on how to properly
inflate the vehicle’s tires. The tire pressure will also
increase as the vehicle is driven, this is normal and there
should be no adjustment for this increased pressure.

CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures have
been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor
damage may result when using replacement equip-
ment that is not of the same size, type, and/or style.
Aftermarket wheels can cause sensor damage. Do not
use aftermarket tire sealants or balance beads if your
vehicle is equipped with a TPMS, as damage to the
sensors may result.

ABS (Anti-Lock Brake System)............208,309
Adding Fuel ........................... 340
Adding Washer Fluid ..................... 198
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 389
Air Conditioner Maintenance ............... 390
Air Conditioning ..................... 261,264
Air Conditioning Controls ................. 264
Air Conditioning, Operating Tips ............ 265
Air Conditioning Refrigerant ............... 391
Air Conditioning System .................. 264
Air Filter .............................. 389
Air Pressure, Tires ....................... 322
Airbag ................................ 51
Airbag Deployment ....................... 57
Airbag Light ......................... 60,208
Airbag Maintenance ....................... 59
Airbag, Side ............................ 57
Alarm (Security Alarm) .................... 18
Alignment and Balance ................... 328 Alterations/Modifications, Vehicle
............. 8
Antenna, Satellite Radio ................... 255
Antifreeze (Engine Coolant) ................ 424
Anti-Lock Brake System (ABS) ............105,309
Anti-Lock Warning Light .................. 208
Appearance Care ........................ 406
Arming Theft System (Security Alarm) ......... 18
Audio Systems (Radio) .................... 250
Auto Down Power Windows ................ 37
Automatic Transmission ................... 401
Fluid and Filter Changes ................. 401
Fluid Level Check ...................... 401
Fluid Type ........................... 401
Gear Ranges .......................... 281
Shifting ............................. 281
Special Additives ...................... 403
Torque Converter ...................... 285
Auxiliary Electrical Outlet (Power Outlet) ....... 116
Auxiliary Power Outlet .................... 116
446 INDEX

INTRODUCTION INTRODUCTION ROLLOVER WARNING HOW TO USE THIS MANUAL WARNINGS AND CAUTIONS VEHICLE IDENTIFICATION NUMBER VEHICLE MODIFICATIONS/ALTERATIONS THINGS TO KNOW BEFORE STARTING YOUR VEHICLE A WORD
ABOUT YOUR KEYS Ignition Key RemovalKey-In-Ignition ReminderSTEERING WHEEL LOCK To Manually Lock the Steering WheelTo Release the Steering Wheel LockSENTRY KEY Replacement KeysCustomer Key ProgrammingGeneral InformationSECURITY ALARM
SYSTEM - IF EQUIPPED To Set the AlarmTo Disarm the SystemILLUMINATED ENTRY REMOTE KEYLESS ENTRY - IF EQUIPPED To Unlock the Doors and Swing GateTo Lock the Doors and Swing GateUsing The Panic AlarmTo Turn Off Flash Lights With Lock
Programming Additional TransmittersGeneral InformationBattery ReplacementREMOTE STARTING SYSTEM - IF EQUIPPED DOORS Upper Half Door Window Removal (If Equipped)Upper Half Door Window Installation (If Equipped)Front Door RemovalRear Door Removal
(Four-Door Models)DOOR LOCKS Manual Door LocksPower Door Locks - If EquippedAutomatic Unlock Doors On ExitAutomatic Door LocksWINDOWS Power Windows - If EquippedRear Power Windows (Four-Door Models Only)Wind BuffetingREAR SWING GATE
OCCUPANT RESTRAINTS Lap/Shoulder BeltsRear Center Lap/Shoulder Belt Retractor Lock-Out (Four-Door Models Only)Adjustable Upper Shoulder Belt AnchorageSeat Belt PretensionersEnhanced Seat Belt Use Reminder System (BeltAlert)Seat Belts And Pregnant
WomenSeat Belt ExtenderDriver And Front Passenger Supplemental Restraint Systems (SRS) Child RestraintENGINE BREAK-IN RECOMMENDATIONS SAFETY TIPS Exhaust GasSafety Checks You Should Make Inside The VehicleSafety Checks You Should Make
Outside The VehicleUNDERSTANDING THE FEATURES OF YOUR VEHICLE MIRRORS Inside Day/Night MirrorOutside MirrorsHANDS-FREE COMMUNICATION (UConnect) SEATS Front Seat AdjustmentManual Seat Height Adjustment - If EquippedFront Seatback
ReclineFront Easy Entry Seats (Two-Door Models)Head RestraintsFold And Tumble Rear Seat (Two-Door Models)Removing the Rear Seat (Two-Door Models)Replacing the Rear Seat (Two-Door Models)60/40 Split Folding Rear Seat (Four-Door Models)To Raise the Rear
SeatTO OPEN AND CLOSE THE HOOD LIGHTS Interior LightsMultifunction Control LeverParking Lights, Instrument Panel Lights, and HeadlightsLights-On ReminderHeadlight Dimmer SwitchPassing LightFront Fog Lights - If EquippedTurn SignalsDaytime Running Lights
- If EquippedWINDSHIELD WIPERS AND WASHERS Intermittent Wiper SystemWindshield Wiper OperationWindshield WashersMist FeatureTILT STEERING COLUMN ELECTRONIC SPEED CONTROL - IF EQUIPPED To ActivateTo Set At A Desired SpeedTo Deactivate
To Resume SpeedTo Vary The Speed SettingManual TransmissionTo Accelerate For PassingELECTRONIC BRAKE CONTROL SYSTEM ABS (Anti-Lock Brake System)TCS (Traction Control System)BAS (Brake Assist System)ERM (Electronic Roll Mitigation)ESP (Electronic
Stability Program)ESP/BAS Warning LightELECTRICAL POWER OUTLET Electrical Outlet Use With Engine OffCUPHOLDERS Front CupholdersRear CupholdersSTORAGE Console Storage CompartmentRear Storage CompartmentDUAL TOP - IF EQUIPPED Removing
The Soft TopInstalling the Soft TopFREEDOM TOP THREE-PIECE MODULAR HARD TOP Front Panel(s) RemovalFront Panel(s) InstallationFront Panel(s) Installation Only (With Rear Hard Top Removed)Rear Hard Top RemovalRear Hard Top InstallationDOOR FRAME
Door Frame Removal (Two-Door Models)Door Frame Installation (Two-Door Models)Door Frame Removal (Four-Door Models)Door Frame Installation (Four-Door Models)SOFT TOP (TWO-DOOR MODELS) Folding Down The Soft Top Putting Up The Soft Top SUNRIDER
(TWO-DOOR MODELS) - IF EQUIPPED SUNRIDER (FOUR-DOOR MODELS) - IF EQUIPPED SOFT TOP (FOUR-DOOR MODELS) Folding Down The Soft Top Putting Up The Soft Top FOLDING WINDSHIELD Lowering The Windshield And Removing Side BarsRaising
The Windshield And Replacing Side BarsREAR WINDOW FEATURES - HARD TOP ONLY Rear Window Wiper/Washer - If EquippedRear Window Defroster - If EquippedUNDERSTANDING YOUR INSTRUMENT PANEL INSTRUMENT PANEL AND CONTROLS
INSTRUMENT CLUSTER INSTRUMENT CLUSTER DESCRIPTION COMPASS AND TRIP COMPUTER - IF EQUIPPED Control ButtonsTrip ConditionsCompass Temperature DisplayRADIO GENERAL INFORMATION Radio Broadcast SignalsTwo Types of SignalsElectrical
DisturbancesAM ReceptionFM ReceptionSALES CODE RES - AM/FM STEREO RADIO WITH CD PLAYER (MP3 AUX JACK) Operating Instructions - Radio ModeOperation Instructions - CD MODE for CD and MP3 Audio PlayNotes On Playing MP3 FilesLIST Button (CD
Mode for MP3 Play)INFO Button (CD Mode for MP3 Play)SALES CODE REQ - AM/FM STEREO RADIO AND 6-DISC CD/DVD CHANGER (MP3/WMA AUX JACK) Operating Instructions - Radio ModeOperation Instructions - (DISC MODE for CD and MP3/WMA Audio
Play, DVD-VIDEO)Notes On Playing MP3/WMA FilesLIST Button (DISC Mode for MP3/WMA Play)INFO Button (DISC Mode for MP3/WMA Play)SALES CODE RER - MULTIMEDIA SYSTEM - IF EQUIPPED Operating Instructions - Satellite RadioOperating Instructions -
Hands-Free Communication (UConnect) (If Equipped)Clock Setting ProcedureSATELLITE RADIO - IF EQUIPPED (REN/REQ/RER/RES RADIOS ONLY) System Act ivationElectronic Serial Number/Sirius Identification Number (ESN/SID)Selecting Satellite ModeSatellite
AntennaReception QualityOperating Instructions - Satellite ModeOperating Instructions - Hands-Free Phone (If Equipped)Operating Instruction s - Video Entertainment System (VES) (If Equipped)CD/DVD DISC MAINTENANCE RADIO OPERATION AND CELLULAR
PHONES CLIMATE CONTROLS Manual Heater OnlyManual Air Conditioning and Heating System - If EquippedAir ConditioningOperating TipsSTARTING AND OPERATING STARTING PROCEDURES Manual TransmissionAutomatic TransmissionNormal StartingExtreme
Cold Weather (below -20 degrees F or -29 degrees C)If Engine Fails to StartAfter StartingENGINE BLOCK HEATER - IF EQUIPPED MANUAL TRANSMISSION ShiftingDownshiftingReverse ShiftingAUTOMATIC TRANSMISSION Shift Lock Manual Override
Brake/Transmission Interlock SystemAutomatic Transmission with OverdriveFOUR-WHEEL DRIVE OPERATION (COMMAND-TRAC OR ROCK-TRAC) - IF EQUIPPED Operating Instructions/PrecautionsShift PositionsShifting ProcedureTRAC-LOK REAR AXLE - IF
EQUIPPED AXLE LOCK (TRU-LOK) - RUBICON MODELS REAR AXLE LOCK - 4WD NON-RUBICON MODELS (IF EQUIPPED) ELECTRONIC SWAY BAR DISCONNECT - IF EQUIPPED ON-ROAD DRIVING TIPS OFF-ROAD DRIVING TIPS Side Step Removal - If
EquippedThe Basics of Off-Road DrivingWhen To Use 4L (Low) RangeSimultaneous Brake And Throttle OperationDriving In Snow, Mud and SandCrossing Obstacles (Rocks And Other High Points)Hill ClimbingDriving Through WaterAfter Driving Off-RoadPARKING BRAKE
ANTI-LOCK BRAKE SYSTEM POWER STEERING TIRE SAFETY INFORMATION Tire Markings Tire Identification Number (TIN)Tire Loading and Tire PressureTIRES - GENERAL INFORMATION Tire PressureTire Inflation Pressures Tire Pressures for High-Speed Operation
Radial-Ply TiresTire SpinningTread Wear IndicatorsLife of TireReplacement TiresAlignment and BalanceTIRE CHAINS TIRE ROTATION RECOMMENDATIONS TIRE PRESSURE MONITOR SYSTEM (TPMS) Base SystemGeneral InformationFUEL REQUIREMENTS
Reformulated GasolineGasoline/Oxygenate BlendsMMT In GasolineMaterials Added To FuelFuel System CautionsCarbon Monoxide WarningsADDING FUEL Fuel Filler Cap (Gas Cap)VEHICLE LOADING Certification LabelTRAILER TOWING Common Towing Definitions
Trailer Hitch ClassificationTrailer Towing Weights (Maximum Trailer Weight Ratings)Trailer and Trailer Tongue WeightTowing RequirementsTowing TipsRECREATIONAL TOWING (BEHIND MOTORHOME, ETC.) Towing - 2WD ModelsTowing - 4WD ModelsWHAT TO DO
IN EMERGENCIES HAZARD WARNING FLASHERS IF YOUR ENGINE OVERHEATS JACKING AND TIRE CHANGING Jack LocationSpare Tire StowagePreparations For JackingJacking Instructions JUMP STARTING EMERGENCY TOW HOOKS - IF EQUIPPED TOWING
A DISABLED VEHICLE MAINTAINING YOUR VEHICLE ENGINE COMPARTMENT - 3.8L ONBOARD DIAGNOSTIC SYSTEM - OBD II Loose Fuel Filler Cap MessageEMISSIONS INSPECTION AND MAINTENANCE PROGRAMS REPLACEMENT PARTS AUTHORIZED
DEALER SERVICE MAINTENANCE PROCEDURES Engine OilDrive Belts - Check Condition and TensionSpark PlugsCatalytic ConverterCrankcase Emission Control SystemFuel FilterEngine Air Cleaner FilterMaintenance-Free BatteryAir Conditioner MaintenancePower
Steering Fluid CheckDriveline And Steering Component LubricationBody LubricationWindshield Wiper BladesWindshield And Rear Window WashersExhaust SystemCooling SystemHoses and Vacuum/Vapor HarnessesBrake SystemAutomatic TransmissionHydraulic Clutch
Fluid - Manual TransmissionManual TransmissionTransfer CaseFront/Rear Axle FluidMaintenance After Off-Road DrivingAppearance Care And Protection From CorrosionFUSES (TOTALLY INTEGRATED POWER MODULE) VEHICLE STORAGE REPLACEMENT BULBS
- IF EQUIPPED BULB REPLACEMENT Head LightFront Park/Turn SignalFront Side MarkerFront Fog LightRear Tail, Stop, Turn Signal, and Backup LightsCenter High-Mounted Stop Light (CHMSL)FLUID CAPACITIES FLUIDS, LUBRICANTS AND GENUINE PARTS Engine
ChassisMAINTENANCE SCHEDULES EMISSIONS CONTROL SYSTEM MAINTENANCE MAINTENANCE SCHEDULE Required Maintenance IntervalsIF YOU NEED CONSUMER ASSISTANCE SUGGESTIONS FOR OBTAINING SERVICE FOR YOUR VEHICLE Prepare
For The AppointmentPrepare A ListBe Reasonable With RequestsIF YOU NEED ASSISTANCE DaimlerChrysler Motors Corporation Customer CenterDaimlerChrysler Canada Inc. Customer CenterIn Mexico contactCustomer Assistance For The Hearing Or Speech Impaired
(TDD/TTY)Service ContractWARRANTY INFORMATION (U.S. Vehicles Only) MOPAR PARTS REPORTING SAFETY DEFECTS In The 50 United States And Washington, D.CIn CanadaPUBLICATION ORDER FORMS DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES TreadwearTraction GradesTemperature GradesINDEX