2007 JEEP GRAND CHEROKEE trailer

EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed inbold
typemust be done at the times or mileages specified to
assure the continued proper functioning of the emission
control system. These, and all other maintenance services
included in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE:Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is ScheduleB. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Excessive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Trailer towing
•Heavy loading
412 MAINTENANCE SCHEDULES
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Schedule “B”
Follow this schedule if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F (0°C)
•Stop and go driving
•Excessive engine idling
•Driving in dusty conditions
•Short trips of less than 10 miles (16.2 km)
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C)
•Trailer towing
•Heavy loading
•Taxi, police, or delivery service (commercial service)
•Off-road or desert driving
•If equipped for and operated with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you, change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first, and follow the maintenance rec-
ommendations in “Maintenance Schedule B.”
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first, and follow
“Schedule B” of the “Maintenance Schedules” section of
this manual.
SCHEDULE “B” 415
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Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
This maintenance is recommended by the manufac-
turer to the owner, but is not required to maintain
emissions warranty.
* This maintenance is not required if the belt was
previously replaced.
WARNING!
You can be badly injured working on or around a
motor vehicle. Do only that service work for which
you have the proper equipment. If you have any
doubt about your ability to perform a service job,
take your vehicle to a competent mechanic.
MAINTENANCE SCHEDULES — DIESEL ENGINES
There are two maintenance schedules that show the
requiredservice for your vehicle.
First is ScheduleB. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
•Day or night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
SCHEDULE “A” 433
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Schedule “B” — Diesel Engines
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32°F (0°C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16.2 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert driving.
436 SCHEDULE “B” — DIESEL ENGINES
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Applies only if vehicle is used for frequent trailer
towing, or fleet/commercial service.
† The replacement of such component is requested when
there is superficial wear, bearing clearance, or evident
grease leak.Inspection and service should be performed anytime a
malfunction is observed or suspected. Retain all receipts.
440 SCHEDULE “B” — DIESEL ENGINES
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Heated Mirrors.......................... 76
Heated Seats........................... 102
Heater, Engine Block..................... 253
High Beam Indicator..................... 175
High Beam/Low Beam Select (Dimmer) Switch . . 118
Hitches
TrailerTowing ........................ 322
Holder,Cup ........................... 158
HomeLink(Garage Door Opener) Transmitter . . . 146
Hood Release........................... 111
Hoses................................ 381
Ignition
Cables (Spark Plug Wires)................ 367
Key ................................. 14
Wiring System (Spark Plug Wires).......... 367
Illuminated Entry........................ 19
Infant Restraint.......................... 54
Inflation Pressure Tires.................... 288Information Center, Vehicle................. 183
Inside Rearview Mirror.................... 72
Instrument Cluster....................173,175
Instrument Panel and Controls.............. 172
Instrument Panel Lens Cleaning............. 393
Integrated Power Module (Fuses)............ 399
Interior Appearance Care.................. 391
Interior Fuses.......................... 393
Interior Lighting........................ 118
Interior Lights....................... 116,118
Intermittent Wipers (Delay Wipers)........... 121
Introduction............................. 4
Jack Location........................... 340
Jack Operation.......................339,342
Jacking Instructions...................... 342
Jump Starting.......................... 346
Key, Programming........................ 17
INDEX 459
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Tires ............................ 66,287,449
Air Pressure.......................... 288
Alignment and Balance.................. 293
Chains.............................. 294
Changing............................ 339
General Information.................... 287
High Speed.......................... 290
Inflation Pressures..................... 288
Jacking............................. 339
LifeofTires .......................... 292
Load Capacity.....................283,284
Pressure Monitor System (TPMS)........... 295
Pressure Warning Light.................. 178
Quality Grading....................... 449
Radial.............................. 290
Replacement......................... 292
Rotation............................. 294
Safety............................ 66,278
Sizes ............................... 280Spare Tire........................... 340
Spinning ............................ 290
Tread Wear Indicators................... 291
Wheel Mounting....................... 344
Tongue Weight/Trailer Weight.............. 325
Torque Converter Clutch.................. 260
Tow Hooks, Emergency................... 349
Tow/Haul Indicator Light................. 180
Towing ............................318,350
Disabled Vehicle....................... 350
Guide .............................. 323
Recreational.......................... 332
Weight .............................. 323
Traction Control......................... 130
Traction Control Light.................... 177
TrailerTowing .......................... 318
Cooling System Tips.................... 331
Hitches............................. 322
Minimum Requirements................. 326
468 INDEX

Trailer and Tongue Weight................ 325
Wiring .............................. 329
TrailerTowingGuide ..................... 323
TrailerWeight .......................... 323
Transfer Case........................... 385
Maintenance.......................... 385
Transmission
Automatic........................254,386
Maintenance.......................... 386
Range Indicator....................... 181
Shifting ............................. 253
Transmitter Battery Service (Remote Keyless Entry) . 23
Transmitter, Garage Door Opener (HomeLink) . . 146
Transmitter, Remote Keyless Entry (RKE)........ 19
Tread Wear Indicators.................... 291
Turn Signals................... 117,175,403,404
UConnect™ (Hands-Free Phone).............. 77
Underhood Fuses.....................396,399Uniform Tire Quality Grades................ 449
Universal Transmitter..................... 146
Upholstery Care........................ 391
Vacuum/Vapor Harnesses................. 381
VanityMirrors ........................... 76
Variance, Compass....................... 196
Vehicle Identification Number (VIN)............ 8
Vehicle Loading......................284,316
Vehicle Modifications/Alterations.............. 9
Vehicle Storage.......................243,400
Video Entertainment System (Rear Seat Video
System)............................... 225
Viscosity, Engine Oil...................364,365
Warning Flasher, Hazard.................. 338
Warnings and Cautions..................... 8
Warranty Information..................... 447
Washer, Adding Fluid..................... 165
INDEX 469
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