2007 JEEP GRAND CHEROKEE inflation pressure

Tire Inflation Pressures
The proper cold tire inflation pressure is listed on either
the face of the driver's door, or the driver's side ªBº pillar.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge tocheck tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under inflated.
CAUTION!
After inspecting or adjusting the tire pressure al-
ways reinstall the valve stem cap±if equipped. This
will prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always
ªcold tire inflation pressureº. Cold tire inflation pressure
is defined as the tire pressure after the vehicle has not
been driven for at least 3 hours, or driven less than 1 mile
(1 km) after a 3 hour period. The cold tire inflation
pressure must not exceed the maximum inflation pres-
sure molded into the tire side wall.
Tire Placard Location
260 STARTING AND OPERATING

Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with
temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12É F (7É C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage especially in
the winter.
Example: If garage temperature = 68É F (20É C) and the
outside temperature = 32É F (0É C) then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12É F (7É C) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.Tire Pressures for High Speed Operation
The manufacturer advocates driving at safe speeds
within posted speed limits. Where speed limits or condi-
tions are such that the vehicle can be driven at high
speeds, maintaining correct tire inflation pressure is very
important. Increased tire pressure and reduced vehicle
loading may be required for high speed vehicle opera-
tion. Refer to original equipment or an authorized tire
dealer for recommended safe operating speeds, loading
and cold tire inflation pressures.
STARTING AND OPERATING 261
5

Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (see the paragraph on tread
wear indicators). Refer to the Tire and Loading Informa-
tion placard for the size designation of your tire. The
service description and load identification will be found
on the original equipment tire. Failure to use equivalent
replacement tires may adversely affect the safety, han-
dling, and ride of your vehicle. We recommend that you
contact your original equipment or an authorized tire
dealer with any questions you may have on tire specifi-
cations or capability.WARNING!
²Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspen-
sion dimensions and performance characteristics,
resulting in changes to steering, handling, and brak-
ing of your vehicle. This can cause unpredictable
handling and stress to steering and suspension com-
ponents. You could lose control and have an accident
resulting in serious injury or death. Use only the tire
and wheel sizes with load ratings approved for your
vehicle.
²Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have an accident.
²Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control.
STARTING AND OPERATING 265
5

The following9warnings9will cause a text message to be
displayed, an audible chime to sound, and the ªTire
Pressure Monitoring Telltale Lightº to illuminate. The
audible chime will occur once every ignition cycle for
each9warning9detected. The ªTire Pressure Monitoring
Telltale Lightº will illuminate continuously (solid) and
shall remain illuminated until the warning condition is
removed/reset.
When the appropriate conditions exist, the Electronic
Vehicle Information Center (EVIC) displays the following
messages.LEFT FRONT, LEFT REAR, RIGHT FRONT,
RIGHT REAR LOW PRESSURE
One or more of these messages will be displayed in the
EVIC if a low tire pressure condition exists in one or more
tires.
Inspect all tires for proper inflation pressure, once the
proper tire pressure has been set, the TPMS will reset
automatically when the vehicle has been driven for at
least 2 minutes at or above 15 mph (24 km/h).
CHECK TPM SYSTEM
See your authorized dealer when this message appears in
the EVIC. This message indicates that a system fault
condition has been detected.
268 STARTING AND OPERATING

²Safety chains must always be used between your
vehicle and trailer. Always connect the chains to the
hook retainers of the vehicle hitch. Cross the chains
under the trailer tongue and allow enough slack for
turning corners.
²Vehicles with trailers should not be parked on a grade.
When parking, apply the parking brake on the tow
vehicle. Put the tow vehicle in P (Park). Always, block
or9chock9the trailer wheels.
²GCWR must not be exceeded.
²Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR4. Tongue weight rating for the trailer hitch utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight).
Towing Requirements Ð Tires
þ
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
ªTires±General Informationº for proper tire inflation
procedures.
þAlso, check the trailer tires for proper tire inflation
pressures before trailer usage.
þCheck for signs of tire wear or visible tire damage
before towing a trailer. Refer to ªTires±General Infor-
mationº for proper inspection procedure.
STARTING AND OPERATING 285
5

Heated Mirrors.......................... 77
Heated Seats........................... 103
High Beam Indicator..................... 172
High Beam/Low Beam Select (Dimmer) Switch . . 119
Hitches
Trailer Towing........................ 281
Holder, Cup........................... 157
HomeLinkt(Garage Door Opener) Transmitter . . . 145
Hood Release.......................... 112
Hoses.............................323,327
Ignition
Key ................................. 14
Illuminated Entry........................ 19
Infant Restraint.......................... 54
Inflation Pressure Tires.................... 260
Information Center, Vehicle................. 179
Instrument Cluster....................171,172
Instrument Panel and Controls.............. 170Instrument Panel Lens Cleaning............. 332
Integrated Power Module (Fuses)............ 338
Interior Appearance Care.................. 331
Interior Fuses.......................... 333
Interior Lighting........................ 119
Interior Lights....................... 117,119
Intermittent Wipers (Delay Wipers)........... 122
Introduction............................. 4
Jump Starting.......................... 293
Key, Programming........................ 17
Key, Replacement........................ 17
Key, Sentry (Immobilizer)................... 15
Key-In Reminder......................... 15
Keyless Entry System...................... 19
Keys................................. 14
Lap/Shoulder Belts....................... 35
384 INDEX

General Information.................... 258
High Speed.......................... 261
Inflation Pressures..................... 260
Life of Tires.......................... 264
Load Capacity.....................254,255
Pressure Monitor System (TPMS)........... 266
Pressure Warning Light.................. 175
Quality Grading....................... 375
Radial.............................. 262
Replacement......................... 265
Rotation............................. 266
Safety............................67,250
Sizes............................... 251
Spinning............................ 263
Tread Wear Indicators................... 263
Tongue Weight/Trailer Weight.............. 282
Towing............................... 277
Behind a Motor Home.................. 289
Guide.............................. 282Recreational.......................... 289
Weight.............................. 282
Towing Vehicle Behind a Motor Home......... 289
Traction Control......................... 132
Traction Control Light.................... 174
Trailer Towing.......................... 277
Cooling System Tips.................... 289
Hitches............................. 281
Minimum Requirements................. 284
Trailer and Tongue Weight................ 282
Wiring.............................. 287
Trailer Towing Guide..................... 282
Trailer Weight.......................... 282
Transmission........................... 327
Automatic........................239,327
Range Indicator....................... 177
Shifting............................. 238
Transmitter Battery Service (Remote Keyless Entry) . 23
Transmitter, Garage Door Opener (HomeLinkt) . . 145
392 INDEX

INTRODUCTION INTRODUCTION Roll Over WarningHOW 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 ReminderSENTRY KEY IMMOBILIZER SYSTEM Important Note About ServiceReplacement KeysCustomer Key ProgrammingGeneral InformationSECURITY ALARM SYSTEM - IF EQUIPPED To Set the Alarm
To Disarm the SystemILLUMINATED ENTRY REMOTE KEYLESS ENTRY To Unlock the DoorsTo Lock the DoorsTo Release the Liftgate Flipper GlassUsing The Panic AlarmGeneral InformationTransmitter Battery ServiceREMOTE STARTING SYSTEM - IF EQUIPPED
DOOR LOCKS Manual Door LocksPower Door Locks - If EquippedChild Protection Door LockWINDOWS Power WindowsWind BuffetingLIFTGATE Liftgate FlipperGlassOCCUPANT RESTRAINTS Lap/Shoulder BeltsLap/Shoulder Belt Operating InstructionsAdjustable Upper
Shoulder Belt AnchorageAutomatic Locking Mode - If EquippedEnergy Management FeatureSeat Belt PretensionersSeat 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 Automatic Dimming MirrorOutside Mirrors
Exterior Mirrors Folding FeatureDrivers Outside Automatic Dimming Mirror - If EquippedPower Remote Control Outside MirrorsHeated Remote ControlMirrors - If EquippedLighted Vanity Mirrors - If EquippedHANDS-FREE COMMUNICATION (UConnect) - IF EQUIPPED
OperationsPhone Call FeaturesUConnect System FeaturesAdvanced Phone ConnectivityThings You Should Know About Your UConnect SystemSEATS Front Manual Seat AdjustmentFront Seat Adjustment - ReclineManual Lumbar Support Adjustment8 - Way Drivers Power
Seat4 - Way Passengers Power Seat - If EquippedHead RestraintsHeated Seats-If Equipped60/40 Split Rear SeatDRIVER MEMORY SEAT - IF EQUIPPED SettingMemory Positions and Linking Remote Keyless Entry Transmitter to MemoryMemory Position RecallTo Disable
A Transmitter Linked to MemoryEasy Entry/Exit SeatTO OPEN AND CLOSE THE HOOD LIGHTS Multi-Function Control LeverBattery Saver Feature-Exterior/Interior LightsHeadlights and Parking LightsAutomatic Headlight System - If EquippedSmartBeams - If Equipped
Instrument Panel and Interior LightsDaytime Running Lights - If EquippedLights-On ReminderFog Lights - If EquippedTurn SignalsHigh Beam SwitchPassing LightHeadlight Time DelayInterior LightsFront Map/Reading LightsWINDSHIELD WIPERS AND WASHERS Mist
Speed Sensitive Intermittent Wiper SystemRain Sensing Wipers-If EquippedTILT STEERING COLUMN ADJUSTABLE PEDALS - IF EQUIPPED ELECTRONIC SPEED CONTROL To ActivateTo Set at a Desired SpeedTo DeactivateTo Resume SpeedTo Vary the Speed
SettingTo Accelerate for PassingDriving Up or Down HillsELECTRONIC 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 Lamp and ESP/TCS Indicator LightREAR PARK ASSIST SYSTEM- IF EQUIPPED Rear Park Assist SensorsRear Park Assist Warning DisplayEnable/Disable the Rear Park Assist SystemService the Rear Park Assist SystemCleaning the Rear Park Assist System
REAR CAMERA - IF EQUIPPED Turning the Rear Camera OnTurning the Rear Camera OffOVERHEAD CONSOLE Courtesy/Reading LightsSunglasses StorageGARAGE DOOR OPENER Programming HomeLinkCanadian Programming/Gate ProgrammingUsing HomeLink
Erasing HomeLink ButtonsReprogramming a Single HomeLink ButtonSecurityPOWER SUNROOF - IF EQUIPPED Opening Sunroof - ExpressClosing Sunroof - ExpressPinch Protect FeaturePinch Protect OverrideVenting Sunroof - ExpressSunshade OperationWind
BuffetingSunroof MaintenanceIgnition Off OperationSunroof Fully ClosedPOWER OUTLET CUP HOLDERS CARGO AREA FEATURES Cargo LightRear Storage CompartmentRetractable Cargo Area CoverCargo Tie-Down HooksCargo Load FloorREAR WINDOW
FEATURES Rear Window Wiper/Washer - If EquippedRear Window Defroster - If EquippedUNDERSTANDING YOUR INSTRUMENT PANEL INSTRUMENT PANEL AND CONTROLS INSTRUMENT CLUSTER INSTRUMENT CLUSTER DESCRIPTION ELECTRONIC
VEHICLE INFORMATION CENTER Customer Programmable FeaturesCompass/Temperature/Trip ComputerTrip ComputerRADIO GENERAL INFORMATION Radio Broadcast SignalsTwo Types of SignalsElectrical DisturbancesAM ReceptionFM ReceptionSALES CODE
RAQ - AM/FM/CD (6-DISC) RADIO WITH OPTIONAL SATELLITE RADIO, HANDS FREE PHONE, AND VEHICLE ENTERTAINMENT SYSTEMS (VES) CAPABILITIES Operating Instructions - Radio ModeOperation Instructions - (CD MODE for CD Audio Play)LOAD/EJECT
Button (CD Mode for CD Audio Play)Notes On Playing MP3 FilesOperation Instructions - (CD Mode for MP3 Audio Play)LOAD/EJECT Button (CD Mode for MP3 Play)SALES CODE REC - AM/FM/CD (6-DISC) RADIO WITH NAVIGATION SYSTEM Operating Instructions
- Satellite Radio (If Equipped)REC Setting the ClockAudio Clock DisplayVIDEO ENTERTAINMENT SYSTEM (SALES CODE XRV) - IF EQUIPPED SATELLITE RADIO - IF EQUIPPED System ActivationElectronic Serial Number/Sirius Identification Number (ESN/SID)
Selecting Satellite Mode in RAQ RadiosSelecting a ChannelStoring and Selecting Pre-Set ChannelsUsing the PTY (Program Type) Button - If EquippedPTY Button SCANPTY Button SEEKSatellite AntennaReception QualityREMOTE SOUND SYSTEM CONTROLS Radio
OperationCD PlayerCD/DVD DISC MAINTENANCE RADIO OPERATION AND CELLULAR PHONES CLIMATE CONTROLS Automatic Temperature ControlOperating TipsSTARTING AND OPERATING STARTING PROCEDURES Normal StartingExtreme Cold Weather
(below -20 degrees F (-29 degrees C)If Engine Fails to StartAfter StartingAUTOMATIC TRANSMISSION Brake/Transmission Interlock System5-Speed Automatic TransmissionGear RangesRocking the VehicleAUTOSTICK Autostick OperationAutostick General Information
PARKING BRAKE ANTI-LOCK BRAKE SYSTEM POWER STEERING TIRE SAFETY INFORMATION Tire Markings Tire Identification Number (TIN)Tire Loading and Tire PressureTIRES - GENERAL INFORMATION Run Flat TiresTire PressureTire Inflation PressuresTire
Pressures for High Speed OperationRadial-Ply TiresTire SpinningTread Wear IndicatorsLife of TireReplacement TiresAlignment and BalanceTIRE ROTATION RECOMMENDATIONS TIRE PRESSURE MONITOR SYSTEM (TPMS) Premium SystemGeneral InformationFUEL
REQUIREMENTS Reformulated GasolineGasoline/Oxygenate BlendsMMT In GasolineMaterials Added to FuelFuel System CautionsCarbon Monoxide WarningsADDING FUEL Fuel Filler Cap (Gas Cap)TRAILER TOWING Common Towing DefinitionsTrailer Hitch
ClassificationTrailer Towing Weights (Maximum Trailer Weight Ratings)Trailer and Tongue WeightTowing RequirementsTowing TipsRECREATIONAL TOWING (BEHIND MOTORHOME, ETC.) WHAT TO DO IN EMERGENCIES HAZARD WARNING FLASHERS IF YOUR
ENGINE OVERHEATS JUMP STARTING MAINTAINING YOUR VEHICLE ENGINE COMPARTMENT - 6.1L ONBOARD DIAGNOSTIC SYSTEM - OBD II Loose Fuel Filler Cap MessageEMISSIONS INSPECTION AND MAINTENANCE PROGRAMS REPLACEMENT PARTS
DEALER SERVICE MAINTENANCE PROCEDURES Engine OilEngine Oil FilterDrive Belts - Check Condition and TensionerSpark PlugsEngine Air Cleaner FilterFuel FilterCatalytic ConverterMaintenance-Free BatteryAir Conditioner MaintenancePower Steering Fluid Check
Body LubricationWindshield Wiper BladesWindshield Washers - Front and RearExhaust SystemCooling SystemHoses And Vacuum/Vapor HarnessesBrake SystemBrake Fluid Level CheckFuel System HosesAutomatic TransmissionFront And Rear Wheel Bearings
Appearance Care And Protection From CorrosionFUSE PANEL Interior FusesUnderhood Fuses (Power Distribution Center) Underhood Fuses (Integrated Power Module) VEHICLE STORAGE REPLACEMENT BULBS BULB REPLACEMENT Head LightFront Turn Signal
Front Fog LightRear Tail, Stop, Turn Signal, and Back-Up LightsCenter High Mounted Stop Light (CHMSL)FLUID CAPACITIES FLUIDS, LUBRICANTS, AND GENUINE PARTS EngineChassisMAINTENANCE SCHEDULES EMISSION CONTROL SYSTEM MAINTENANCE MAINTENANCE SCHEDULES Schedule BSchedule AIF YOU NEED CONSUMER ASSISTANCE SUGGESTIONS FOR OBTAINING SERVICE FOR YOUR VEHICLE Prepare For The AppointmentPrepare A ListBe Reasonable With RequestsIF YOU NEED ASSISTANCE
WARRANTY INFORMATION (U.S. Vehicles Only) MOPAR PARTS REPORTING SAFETY DEFECTS In CanadaPUBLICATION ORDER FORMS DEPARTMENT OF TRANSPORTATION UNIFORM TIRE QUALITY GRADES TreadwearTraction GradesTemperature Grades
INDEX