2006 JEEP GRAND CHEROKEE trailer

CAUTION!
Overfilling or underfilling will cause oil aeration or
loss of oil pressure. This could damage your engine.
CAUTION!
Operating the engine with the oil levels below the
safe zone, or operating with oil levels that exceed the
top of the safe zone may cause engine damage.
Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
•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 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
•Trailer towing.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first. Refer to “Maintenance Schedule
B” in Section 8 of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on “Maintenance ScheduleA.
Refer to Section 8 of this manual.
302 MAINTAINING YOUR VEHICLE

CAUTION!
The fluid level is preset at the factory and does not
require adjustment under normal operating condi-
tions. If a transmission fluid leak occurs, visit your
authorized dealer immediately. Severe damage to the
transmission may occur. Your authorized dealer has
the proper tools to accurately adjust the fluid level.
Fluid and Filter Changes
Automatic transmission fluid and filter should be
changed as follows:
Maintenance Schedule “A”— No change necessary.
Maintenance Schedule “B”– Every 60,000 miles (100 000
km) change fluid and filter under the following condi-
tions:
•Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is drivenregularlyfor
more than 45 minutes of continuous operation.
If the transmission is disassembled for any reason, the
fluid and filter should be changed.
Front And Rear Wheel Bearings
Front and rear wheel bearings are permanently sealed.
No regular maintenance is required for these compo-
nents.
Appearance Care And Protection From Corrosion
Protection of Body and Paint from Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
passable in snow and ice, and those that are sprayed on
trees and road surfaces during other seasons, are highly
corrosive to the metal in your vehicle.
324 MAINTAINING YOUR VEHICLE

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
346 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
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” 349
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Hitches
Trailer Towing........................ 277
Holder, Cup........................... 162
HomeLink(Garage Door Opener) Transmitter . . . 150
Hood Release.......................... 117
Hoses.............................319,322
Ignition
Key ................................. 12
Illuminated Entry........................ 16
Infant Restraint.......................... 59
Inflation Pressure Tires.................... 258
Information Center, Vehicle................. 183
Instrument Cluster....................175,176
Instrument Panel and Controls.............. 174
Instrument Panel Lens Cleaning............. 328
Integrated Power Module.................. 332
Interior Appearance Care.................. 327
Interior Fuses.......................... 328Interior Lighting........................ 118
Interior Lights....................... 118,123
Intermittent Wipers (Delay Wipers)........... 127
Introduction............................. 4
Jump Starting.......................... 289
Key, Programming........................ 15
Key, Replacement........................ 14
Key, Sentry (Immobilizer)................... 13
Key-In Reminder......................... 13
Keyless Entry System...................... 20
Keys................................. 12
Lap/Shoulder Belts....................... 33
LATCH
(Lower Anchors and Tether for CHildren).....63,65
Lead Free Gasoline...................... 268
Leaks, Fluid............................ 72
380 INDEX

Radial.............................. 261
Replacement......................... 263
Rotation............................. 268
Safety............................71,247
Sizes............................... 249
Spinning............................ 261
Tread Wear Indicators................... 262
Tongue Weight/Trailer Weight.............. 278
Towing............................... 274
Behind a Motor Home.................. 285
Guide.............................. 278
Recreational.......................... 285
Weight.............................. 278
Towing Vehicle Behind a Motor Home......... 285
Traction Control......................... 132
Traction Control Light.................... 178
Trailer Towing.......................... 274
Cooling System Tips.................... 285
Hitches............................. 277Minimum Requirements................. 280
Trailer and Tongue Weight................ 278
Wiring.............................. 283
Trailer Towing Guide..................... 278
Trailer Weight.......................... 278
Transmission........................... 323
Automatic........................236,323
Range Indicator....................... 182
Shifting............................. 236
Transmitter Battery Service (Remote Keyless Entry) . 24
Transmitter, Garage Door Opener (HomeLink) . . 150
Transmitter, Remote Keyless Entry (RKE)........ 20
Tread Wear Indicators.................... 262
Turn Signals...................124,176,337,339
Underhood Fuses.....................330,332
Universal Transmitter..................... 150
Unleaded Gasoline....................... 268
Upholstery Care........................ 327
388 INDEX