2008 JEEP GRAND CHEROKEE brake sensor

NTo Vary The Speed Setting...............137
NTo Accelerate For Passing...............137
mElectronic Brake Control System............138
NABS (Anti-Lock Brake System)............138
NTCS (Traction Control System)............139
NBAS (Brake Assist System)...............140
NERM (Electronic Roll Mitigation)..........141
NESP (Electronic Stability Program).........142
NTSC (Trailer Sway Control)..............146
NHSA (Hill Start Assist) (4WD Models With
NV245 Two±Speed Transfer Case Only)......147
NHDC (Hill Descent Control) (4WD Models
With NV245 Two±Speed Transfer Case Only) . . 149NESP/BAS Warning Lamp And ESP/TCS
Indicator Light.......................151
mRear Park Assist SystemÐ If Equipped.......152
NRear Park Assist Sensors................152
NRear Park Assist Warning Display.........153
NEnable/Disable The Rear Park Assist System . . 155
NService The Rear Park Assist System........155
NCleaning The Rear Park Assist System......156
mRear Camera Ð If Equipped...............156
NTurning The Rear Camera On............156
NTurning The Rear Camera Off............157
mOverhead Console......................157
NCourtesy/Reading Lights................158
74 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ESP (Electronic Stability Program)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for oversteering or understeering of the vehicle by
applying the brake of the appropriate wheel to assist in
counteracting the oversteer or understeer condition. En-
gine power may also be reduced to help the vehicle
maintain the desired path.
ESP 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, ESP applies the brake of the appropri-
ate wheel to assist in counteracting the oversteer or
understeer condition.
²Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
²Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
The9ESP/TCS Indicator Light9located in the instrument
cluster, starts to flash as soon as the tires lose traction and
the ESP system becomes active. The9ESP/TCS Indicator
Light9also flashes when TCS is active. If the9ESP/TCS
Indicator Light9begins to flash during acceleration, 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.
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

a speed of 40 mph (64 km/h). At 40 mph (64 km/h), the
normal ESP stability function returns but TCS remains
off. When the vehicle speed drops below 35 mph (56
km/h), the ESP system shuts off. ESP is deactivated at
low vehicle speeds in 4WD low range so that it will not
interfere with off-road driving but ESP function returns
to provide the stability feature at speeds above 40 mph
(64 km/h). The9ESP/TCS Indicator Light9will always be
illuminated in 4WD low range when ESP is off.
NOTE:The ªESP OFFº message will display and the
audible chime will sound when the gear selector is
placed into the ªPº (Park) position from any other
position, and then moved out of the ªPº (Park) position.
This will occur even if the message was previously
clearedWARNING!
With the ESP switched off, the enhanced vehicle
stability offered by ESP and ERM are unavailable. In
an emergency evasive maneuver, the ESP and ERM
systems will not engage to assist in maintaining
stability. The ªFull Offº mode is intended for off-
road use only.
TSC (Trailer Sway Control)
TSC uses sensors in the vehicle to recognize an exces-
sively swaying trailer and will take the appropriate
actions to attempt to stop the sway. The system may
reduce engine power and apply the brake of the appro-
priate wheel(s) to counteract the sway of the trailer. TSC
will become active automatically once an excessively
swaying trailer is recognized. No driver action is re-
quired. Note that TSC cannot stop all trailers from
146 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the N
(Neutral) position without first fully engaging the
parking brake. The transfer case N (Neutral) position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
CAUTION!
Do not use a bumper mounted clamp-on tow bar on
your vehicle. The bumper face bar will be damaged.
SNOW PLOW
Snow plows, winches, and other aftermarket equipment
shouldnotbe added to the front end of your vehicle. The
airbag crash sensors may be affected by the change in the
front end structure. The airbags could deploy unexpect-
edly or could fail to deploy during a collision.
WARNING!
Do not add a snow plow, winches, or any other
aftermarket equipment to the front of your vehicle.
This could adversely affect the functioning of the
airbag system and you could be injured.
368 STARTING AND OPERATING

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 Wireless Ignition Node (WIN)Fob with Integrated Key (FOBIK)Ignition Key RemovalKey-In-Ignition ReminderSENTRY KEY Replacement KeysCustomer Key (Fob) ProgrammingGeneral InformationSECURITY ALARM SYSTEM - IF EQUIPPED To Set
the AlarmTo Disarm the SystemILLUMINATED ENTRY REMOTE KEYLESS ENTRY To Unlock the DoorsTo Lock the DoorsTo Release the Liftgate Flipper GlassUsing The Panic AlarmProgramming Additional TransmittersTransmitter Battery ServiceGeneral Information
REMOTE STARTING SYSTEM - IF EQUIPPED DOOR LOCKS Manual Door LocksPower Door LocksChild Protection Door LockWINDOWS Power WindowsWind BuffetingLIFTGATE Liftgate Flipper GlassOCCUPANT RESTRAINTS Lap/Shoulder BeltsLap/Shoulder Belt
Operating InstructionsAdjustable Upper Shoulder Belt AnchorageAutomatic Locking Mode - If EquippedEnergy Management FeatureSeat 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 MirrorAutomatic Dimming Mirror - If EquippedOutside MirrorsExterior Mirrors Folding FeatureDrivers and Front Passenger Outside Automatic Dimming Mirror - If EquippedPower Remote Control Mirrors
- If EquippedHeated Remote Control Mirrors - If EquippedLighted Vanity Mirrors - If EquippedHANDS-FREE COMMUNICATION (UConnect) - IF EQUIPPED OperationPhone Call FeaturesUConnect System FeaturesAdvanced Phone ConnectivityThings You Should Know
About Your UConnect SystemGeneral InformationSEATS Front Manual Seat AdjustmentFront Seat Adjustment - ReclineManual Lumbar Support Adjustment8 - Way Drivers Power Seat4 - Way Passengers Power Seat - If EquippedHead RestraintsFront Heated Seats-If
EquippedRear Heated Seats - If Equipped60/40 Split Rear SeatDRIVER MEMORY SEAT - IF EQUIPPED Setting Memory 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 EquippedInstrument Panel and Interior LightsDaytime Running
Lights - If EquippedAutomatic Headlight Leveling - HID Headlights OnlyLights-On ReminderFog Lights - If EquippedTurn SignalsHigh Beam SwitchPassing LightHeadlight Time DelayInterior LightsFront Map/Reading LightsWINDSHIELD WIPERS AND WASHERS MistSpeed
Sensitive Intermittent Wiper SystemRain Sensing Wipers-If EquippedTILT/TELESCOPING STEERING COLUMN ADJUSTABLE PEDALS - IF EQUIPPED ELECTRONICSPEED CONTROL - IF EQUIPPED Electronic Speed Control OperationTo ActivateTo Set At A Desired
SpeedTo DeactivateTo Resume SpeedTo Vary The Speed SettingTo 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)TSC (Trailer Sway Control)HSA (Hill Start Assist) (4WD Models with NV245 Two-Speed Transfer Case Only)HDC (Hill Descent Control) (4WD Models with NV245 Two-Speed Transfer Case Only)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 RearPark Assist SystemCleaning the Rear Park Assist SystemREAR CAMERA - IF EQUIPPED Turning the Rear
Camera OnTurning the Rear Camera OffOVERHEAD CONSOLE Courtesy/Reading LightsSunglasses StorageGARAGE DOOR OPENER - IF EQUIPPED Programming HomeLinkGate Operator/Canadian ProgrammingUsing HomeLinkReprogramming a Single HomeLink
ButtonSecurityTroubleshooting TipsGeneral InformationPOWER SUNROOF - IF EQUIPPED Opening Sunroof - ExpressClosing Sunroof - ExpressPinch Protect FeaturePinch Protect OverrideVenting Sunroof - ExpressSunshade OperationWind BuffetingSunroof Maintenance
Ignition Off OperationSunroof Fully ClosedPOWER OUTLETS Front Power OutletRear Power Outlet - If EquippedPOWER INVERTER - IF EQUIPPED CUP HOLDERS CARGO AREA FEATURES Cargo LightRear Storage CompartmentRetractable Cargo Area Cover - If
EquippedCargo Tie-Down HooksCargo Load FloorREAR WINDOW FEATURES Rear Window Wiper/Washer - If EquippedRear Window Defroster - If EquippedROOF LUGGAGE RACK - IF EQUIPPED UNDERSTANDING YOUR INSTRUMENT PANEL INSTRUMENT PANEL
AND CONTROLS INSTRUMENT CLUSTER Gasoline Engine Diesel Engine INSTRUMENT CLUSTER DESCRIPTION ELECTRONIC VEHICLE INFORMATION CENTER (EVIC) Electronic Vehicle Information Center (EVIC) DisplaysEngine Oil Change Indicator System
Trip FunctionsCompass DisplayPersonal Settings (Customer Programmable Features)System StatusRADIO GENERAL INFORMATION Radio Broadcast SignalsTwo Types of SignalsElectrical DisturbancesAM ReceptionFM ReceptionSALES 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 RES - AM/FM STEREO RADIO WITH CD PLAYER (MP3 AUX JACK) Operating Instructions - Radio ModeOperationInstructions - 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 REN - MULTIMEDIA SYSTEM - IF EQUIPPED Operating Instructions - Satellite Radio (If Equipped)Operating Instructions - Hands-Free Communication (UConnect) (If Equipped)Clock Setting
ProcedureSALES CODE RER - AM/FM/CD/DVD RADIO WITH NAVIGATION SYSTEM - IF EQUIPPED Operating Instructions - Satellite RadioClock Setting ProcedureUNIVERSAL CONSUMER INTERFACE (UCI) - IF EQUIPPED Connecting the iPodControlling the iPod
using Radio ButtonsPlay ModeList or Browse ModeSATELLITE RADIO (RSC) - IF EQUIPPED (REQ AND RES RADIOS ONLY) System ActivationElectronic Serial Number/Sirius Identification Number (ENS/SID)Selecting Satellite ModeSatellite AntennaReception Quality
Operating Instructions - Satellite ModeOperating Instructions - Hands Free Phone (If Equipped)Operating Instructions - Video Entertainment System (VES) (If Equipped)VIDEO ENTERTAINMENT SYSTEM (SALES CODE XRV) - IF EQUIPPED REMOTE SOUND SYSTEM
CONTROLS - IF EQUIPPED Radio OperationCD PlayerCD/DVD DISC MAINTENANCE RADIO OPERATION AND CELLULAR PHONES CLIMATE CONTROLS Manual Air Conditioning and Heating System - If EquippedAutomatic Temperature Control - If EquippedOperating
TipsOperating Tips Chart STARTING AND OPERATING STARTING PROCEDURE Normal Starting - Gasoline EnginesExtremely Cold Weather (below -20 degrees F or -29 degrees C)If Engine Fails to StartAfter StartingNormal Starting - Diesel EnginesENGINE BLOCK
HEATER - IF EQUIPPED AUTOMATIC TRANSMISSION Shift Lock Manual Override - If EquippedBrake/Transmission Interlock System5-Speed Automatic TransmissionGear RangesRocking the VehicleFOUR-WHEEL DRIVE OPERATION Quadra-Trac I Operating
Instructions/Precautions - If EquippedQuadra-Trac II Operating Instructions/Precautions - If EquippedShift PositionsShifting ProceduresQuadra-Drive II System - If EquippedON-ROAD DRIVING TIPS OFF-ROAD DRIVING TIPS When To Use 4WD LOW Range - If Equipped
Driving Through WaterDriving In Snow, Mud and SandHill ClimbingTraction DownhillAfter Driving Off-RoadPARKING BRAKE ANTI-LOCK BRAKE SYSTEM POWER STEERING MULTI DISPLACEMENT SYSTEM (MDS) - 5.7L Engine Only TIRE SAFETY INFORMATION
Tire Markings Tire Identification Number (TIN)Tire Loading and Tire PressureTIRES - GENERAL INFORMATION Tire PressureTire Inflation PressuresTire Pressures for High Speed OperationRadial-Ply TiresTire SpinningTread Wear IndicatorsLife of TireReplacement Tires
Alignment and BalanceTIRE CHAINS TIRE ROTATION RECOMMENDATIONS TIRE PRESSURE MONITOR SYSTEM (TPMS) Base System - If EquippedPremium System - If EquippedGeneral InformationFUEL REQUIREMENTS 3.7/4.7L Engines (If Equipped)5.7L Engines
(If Equipped)Reformulated GasolineGasoline/Oxygenate BlendsMMT In GasolineMaterials Added To FuelFuel System CautionsCarbon Monoxide WarningsFLEXIBLE FUEL (4.7L ENGINE ONLY) - IF EQUIPPED E-85 General InformationETHANOL FUEL (E-85)Fuel
RequirementsSelection Of Engine Oil For Flexible Fuel Vehicles (E-85) and Gasoline VehiclesStartingCruising RangeReplacement PartsFUEL REQUIREMENTS (DIESEL ENGINES) ADDING FUEL Fuel Filler Cap (Gas Cap)VEHICLE LOADING Certification LabelTRAILER
TOWING Common Towing DefinitionsTrailer Hitch ClassificationTrailer Towing Weights (Maximum Trailer Weight Ratings)Trailer and Tongue WeightTowing RequirementsTowing TipsRECREATIONAL TOWING (BEHIND MOTORHOME, ETC.) Towing - 2WD ModelsTowing
- Quadra-Trac I (Single-Speed Transfer Case) 4WD ModelsTowing - Quadra-Trac II /Quadra-Drive II 4WD ModelsSNOW PLOW WHAT TO DO IN EMERGENCIES HAZARDWARNING FLASHERS IF YOUR ENGINE OVERHEATS JACKING AND TIRE CHANGING Jack
LocationSpare Tire StowageSpare Tire RemovalPreparations For JackingJacking InstructionsJUMP STARTING EMERGENCY TOW HOOKS - IF EQUIPPED TOWINGA DISABLED VEHICLE 2WD Models Only4WD Models OnlyMAINTAINING YOUR VEHICLE ENGINE
COMPARTMENT - 3.7L ENGINE COMPARTMENT - 4.7L ENGINE COMPARTMENT - 5.7L ENGINE COMPARTMENT - 3.0L DIESEL ONBOARD DIAGNOSTIC SYSTEM - OBD II Loose Fuel Filler Cap MessageEMISSIONS INSPECTION AND MAINTENANCE PROGRAMS
REPLACEMENT PARTS DEALER SERVICE MAINTENANCE PROCEDURES Engine OilDrive Belts - Check Condition and TensionSpark PlugsSpark Plug WiresEngine AirCleaner FilterCatalytic ConverterCrankcase Emission Control SystemMaintenance-Free BatteryAir
Conditioner MaintenancePower Steering Fluid CheckBody LubricationWindshield Wiper BladesWindshield Washers - Front and RearExhaust SystemCooling SystemHoses and Vacuum/Vapor HarnessesFuel System ConnectionsBrake SystemFront/Rear Axle FluidTransfer
CaseAutomatic TransmissionMaintenance After Off-Road DrivingAppearance Care And Protection From CorrosionFUSE PANEL Interior FusesUnderhoodFuses (Power Distribution Center) Underhood Fuses (Integrated Power Module) VEHICLE STORAGE REPLACEMENT
BULBS BULB REPLACEMENT High Intensity Discharge Headlights (HID) - If EquippedHead LightFront Turn SignalFront Fog LightRear Tail, Stop, Turn Signal, and Back-Up LightsCenter High Mounted Stop Light (CHMSL)FLUIDS AND CAPACITIES FLUIDS, LUBRICANTS,
AND GENUINE PARTS EngineChassisMAINTENANCE SCHEDULES EMISSION CONTROL SYSTEM MAINTENANCE MAINTENANCE SCHEDULE - GASOLINE ENGINES Required Maintenance IntervalsMAINTENANCE SCHEDULES - DIESEL ENGINE Schedule B
- Diesel EngineSchedule A - Diesel EngineIF 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 TIREQUALITY GRADES TreadwearTraction GradesTemperature GradesINDEX