2007 JEEP GRAND CHEROKEE ECU

Insure nylon tubing in these areas has not melted or
collapsed.
Inspect all hose connections such as clamps and cou-
plings to make sure they are secure and no leaks are
present.
NOTE:Often, fluid such as oil, power steering fluid,
and brake fluid are used during assembly plant opera-
tions to facilitate the assembly of hoses to couplings.
Therefore, oil wetness at the hose-coupling area is not
necessarily an indication of leakage. Actual dripping of
hot fluid when systems are under pressure (during
vehicle operation), should be noted before a hose is
replaced based on leakage.
NOTE:Inspection of brake hoses should be performed
whenever the brake system is serviced and at every
engine oil change. Inspect hydraulic brake hoses for
surface cracking, scuffing, or worn spots. If there is any
evidence of cracking, scuffing, or worn spots, the hoseshould be replaced immediately! Eventual deterioration
of the hose can take place resulting in a possibility of a
burst failure.
WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Brake Fluid Level Check
The fluid level in the master cylinder should be checked
when performing underhood services, or immediately if
the brake system warning light indicates system failure.
Clean the top of the master cylinder area before removing
the cap. Add fluid to bring the level up to the top of the
ªFULLº mark on the side of the master cylinder reservoir.
MAINTAINING YOUR VEHICLE 325
7

3. Squeeze the socket assembly tabs to remove it from the
housing.
4. Pull the bulb to remove it from the socket.
5. Replace the bulb, reinstall the socket, and reattach the
light assembly.Center High Mounted Stop Light (CHMSL)
1. Remove the two screws securing the CHMSL.
2. Twist the bulb socket to remove from the CHMSL
housing.
3. Pull the bulb out of the socket.
4. Replace the bulb, reinstall the socket and reattach the
CHMSL.
MAINTAINING YOUR VEHICLE 345
7

ABS (Anti-Lock Brake System)............173,245
Adding Engine Coolant (Antifreeze).......... 320
Adding Fuel........................... 274
Adding Washer Fluid..................... 165
Additives, Fuel......................... 272
Adjustable Pedals....................... 126
Air Conditioner Maintenance............... 313
Air Conditioning, Operating Tips............ 228
Air Conditioning Refrigerant............... 314
Air Pressure, Tires....................... 260
Airbag................................ 43
Airbag Deployment....................... 50
Airbag Light.......................52,66,173
Airbag Maintenance....................... 51
Alarm (Security Alarm).................18,174
Alarm System (Security Alarm)............... 18
Alignment and Balance................... 266
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 218Antifreeze (Engine Coolant)..............319,346
Disposal............................ 321
Anti-Lock Brake System (ABS)............131,245
Anti-Lock Warning Light.................. 173
Anti-Theft System.....................18,174
Appearance Care........................ 329
Auto Down Power Windows................ 30
Automatic Dimming Mirror................. 74
Automatic Door Locks..................... 27
Automatic Headlights..................... 115
Automatic Temperature Control (ATC)......... 222
Automatic Transmission.............239,327,328
Adding Fluid......................... 328
Fluid and Filter Changes................. 328
Fluid Change......................... 328
Fluid Level Check...................... 327
Autostick............................. 241
Auxiliary Electrical Outlet (Power Outlet)...... 155
Auxiliary Power Outlet................... 155
378 INDEX

LowTire ............................ 175
Malfunction Indicator (Check Engine)........ 172
Map Reading......................... 120
Oil Pressure.......................... 174
Passing............................. 119
Reading..........................120,145
Rear Servicing........................ 344
Rear Tail............................ 344
Seat Belt Reminder..................... 177
Security Alarm (Theft Alarm).............. 174
Service.............................. 341
Service Engine Soon (Malfunction Indicator) . . . 172
Side Marker.......................... 344
SmartBeams.......................... 116
Tire Pressure Monitoring (TPMS)........... 175
Traction Control....................136,174
Turn Signal.................. 114,118,342,344
Vanity Mirror.......................... 77
Voltage............................. 178Load Floor, Cargo....................... 163
Loading Vehicle
Tires ............................... 254
Locks................................. 26
Automatic Door........................ 27
Child Protection........................ 28
Door................................ 26
Power Door........................... 26
Lower Anchors and Tether for CHildren
(LATCH)............................58,60
Lubrication, Body....................... 316
Lumbar Support........................ 102
Maintenance Free Battery.................. 312
Maintenance Procedures................... 305
Maintenance Schedule.................... 350
Schedule ªAº......................... 363
Schedule ªBº......................... 353
Maintenance Schedules.................... 350
386 INDEX

Seat Belts.............................. 35
Adjustable Upper Shoulder Anchorage........ 40
And Pregnant Women................... 42
Child Restraint.......................54,62
Extender............................. 42
Front Seat............................ 35
Inspection............................ 66
Maintenance........................66,333
Pretensioners.......................... 41
Reminder............................ 177
Shoulder Belt Anchorage.................. 40
Seats................................. 100
Adjustment.......................... 100
Cleaning............................ 331
Easy Entry........................... 111
Head Restraints....................... 103
Heated............................. 103
Lumbar Support....................... 102
Memory............................. 107Power...........................102,103
Rear Folding......................... 105
Reclining............................ 101
Security Alarm (Theft Alarm).............18,174
Selection of Coolant (Antifreeze)............. 319
Selection of Oil......................... 307
Sentry Key (Immobilizer)................... 15
Sentry Key Programming................... 17
Sentry Key Replacement................... 17
Service Assistance....................... 370
Service Contract......................... 372
Service Engine Soon Light (Malfunction Indicator) . 172
Service Manuals........................ 374
Setting the Clock.....................197,210
Shifting............................... 238
Automatic Transmission................. 238
Shoulder Belts........................... 35
Signals, Turn................... 118,172,342,344
SmartBeams........................... 116
390 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