2008 JEEP GRAND CHEROKEE towing

WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may indicate severe
and abnormal catalyst overheating. If this occurs, the
vehicle should be stopped, the engine shut off and the
vehicle allowed to cool. Thereafter, service, including a
tune-up to manufacturer's specifications, should be ob-
tained immediately.To minimize the possibility of catalyst damage:²Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
²Do not try to start engine by pushing or towing the
vehicle.
²Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idling or malfunctioning operating conditions.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic main-
tenance required.
318 MAINTAINING YOUR VEHICLE

EMISSION CONTROL SYSTEM MAINTENANCE
The ªScheduledº 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 Schedule(B(. It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
²Day or night temperatures are below 32ÉF (0ÉC)
²Stop and go driving
²Excessive engine idling
²Driving in dusty conditions
²Short trips of less than 10 miles (16.2 km)
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC)
²Trailer towing
356 MAINTENANCE SCHEDULES
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Schedule ªBº
Follow this schedule if you usually operate your vehicle
under one or more of the following conditions.
²Day or night temperatures are below 32ÉF (0ÉC)
²Stop and go driving
²Excessive engine idling
²Driving in dusty conditions
²Short trips of less than 10 miles (16.2 km)
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90ÉF (32ÉC)
²Trailer towing
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 ªMaintenance Schedule B.º
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
ªSchedule Bº of the ªMaintenance Schedulesº section of
this manual.
SCHEDULE ªBº 359
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Fuel................................ 181
Speedometer......................... 174
Tachometer.......................... 176
Gear Ranges........................... 248
General Information...............18,24,104,278
Glass Cleaning.......................... 337
Gross Axle Weight Rating.................. 286
Gross Vehicle Weight Rating................ 285
Hands-Free Phone (UConnectŸ).............. 77
Hard Drive (HDD)....................... 212
Hazard Warning Flasher................... 298
Head Restraints......................... 107
Head Rests............................ 107
Headlights..........................120,347
Bulb Replacement...................... 347
On With Wipers....................... 121
Replacing............................ 347
Heated Mirrors.......................... 77Heated Seats........................107,109
High Beam Indicator..................... 174
High Beam/Low Beam Select (Dimmer) Switch . . 124
Hitches
Trailer Towing........................ 289
Holder, Cup........................... 161
HomeLinkt(Garage Door Opener) Transmitter . . . 148
Hood Release.......................... 118
Hoses.............................329,332
Ignition............................... 14
Key ...............................12,14
Ignition Key Removal..................... 14
Illuminated Entry........................ 19
Immobilizer (Sentry Key)................... 15
Infant Restraint........................56,57
Inflation Pressure Tires.................... 269
Information Center, Vehicle................. 182
Instrument Cluster....................173,174
392 INDEX

Rear Seat, Folding....................... 111
Rear Window Defroster................... 168
Rear Window Features.................... 167
Rear Wiper/Washer...................... 167
Reclining Front Seats..................... 104
Recorder, Event Data...................... 54
Recreational Towing...................... 296
Reformulated Gasoline.................... 279
Refrigerant............................ 320
Reminder, Lights On..................... 123
Reminder, Seat Belt....................... 42
Remote Keyless Entry (RKE)................. 19
Remote Sound System (Radio) Controls........ 227
Remote Starting System.................... 24
Replacement Bulbs....................... 346
Replacement Keys........................ 16
Replacement Tires....................... 273
Reporting Safety Defects................... 379
Restraints, Child......................... 56Restraints, Occupant...................... 34
Retractable Cargo Area Cover............... 163
Rocking Vehicle When Stuck................ 249
Roll Over Warning........................ 4
Rotation, Tires.......................... 275
Safety Checks Inside Vehicle................. 67
Safety Checks Outside Vehicle............... 68
Safety Defects, Reporting.................. 379
Safety Information, Tire................... 259
Safety Tips............................. 66
Satellite Radio..................212,213,215,221
Satellite Radio Antenna................... 222
Schedule, Maintenance.................... 356
Seat Belt Maintenance..................... 67
Seat Belt Reminder....................... 42
Seat Belts.............................. 36
Adjustable Upper Shoulder Anchorage........ 40
And Pregnant Women................... 44
398 INDEX

Tire Markings.......................... 259
Tire Safety Information.................... 259
Tires ............................68,267,382
Air Pressure.......................... 269
Alignment and Balance.................. 274
General Information.................... 267
High Speed.......................... 270
Inflation Pressures..................... 269
Life of Tires.......................... 272
Load Capacity.....................263,264
Pressure Monitor System (TPMS)........... 275
Pressure Warning Light.................. 177
Quality Grading....................... 382
Radial.............................. 271
Replacement......................... 273
Rotation............................. 275
Safety............................68,259
Sizes............................... 260
Spinning............................ 271Tread Wear Indicators................... 272
Tongue Weight/Trailer Weight.............. 290
Towing............................... 285
Behind a Motor Home.................. 296
Guide.............................. 290
Recreational.......................... 296
Weight.............................. 290
Towing Vehicle Behind a Motor Home......... 296
Traction Control......................... 135
Traction Control Light.................... 176
Trailer Sway Control (TSC)................. 140
Trailer Towing.......................... 285
Cooling System Tips.................... 296
Hitches............................. 289
Minimum Requirements................. 291
Trailer and Tongue Weight................ 290
Trailer Towing Guide..................... 290
Trailer Weight.......................... 290
Transmission........................... 333
INDEX 401
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