2004 JEEP GRAND CHEROKEE Owners Manual

²Floor
Air flows through the floor outlets located under
the instrument panel and into the rear seating
area through vents under the front seats.
²Bi-Level
Air flows both through the outlets located in the
instrument panel and those located on the floor.
²Panel
Air flows through the outlets located in the in-
strument panel.
²OFF
This position turns off the entire system.
Depress the A/C button to turn on and off the air
conditioning during manual operation only. Conditioned
outside air is then directed through the outlets selected
on the mode control dial.When the outside air contains smoke, odors, high humid-
ity, or if rapid cooling is desired you may wish to
recirculate interior air by pressing the ªRecirculateº icon
button. The recirculation mode should only be used
temporarily. The light on the A/C and ªRecirculateº icon
buttons will illuminate when these buttons are selected.
You may use these features separately or with one
another. Push in on the buttons a second time to change
the functions.
NOTE:If the interior of the windows begins to fog,
press the ªRecirculateº icon button to return to outside
air. Some temp./humidity conditions will cause captured
interior air to condense on windows and hamper visibil-
ity. For this reason, the system will not allow ªRecircu-
lateº to be selected while in the defrost or defrost/floor
modes.
To provide you with maximum comfort in the automatic
mode, during cold start-ups the blower fan will remain
UNDERSTANDING YOUR INSTRUMENT PANEL 169
4

off until the engine warms up. However, the fan will
engage immediately if the defrost mode is selected or if
you select a fixed blower speed.
Window Fogging
Vehicle windows tend to fog on the inside in mild rainy
or humid weather. To clear the windows, use the A/C,
panel, and blower controls. Direct the panel outlets
toward the side windows. Recirculate without A/C
should not be used for long periods as fogging may
occur. Interior fogging on the windshield can be quickly
removed by using the defrost mode.
REAR WINDOW FEATURES
Rear Window Wiper/Washer
A switch on the right side of the steering column controls
operation of the rear wiper/washer function. Rotating
the center of the switch up to the DEL (Delay) position or
the ON position will activate the wiper. Push the lever
forward to initiate the wash function in any of the threepositions. The wash pump will continue to operate as
long as the button is pressed. Upon release, the wipers
will cycle three times before returning to the set position.
If the rear wiper is operating when the ignition is turned
OFF, the wiper will automatically return to the ªParkº
position.
170 UNDERSTANDING YOUR INSTRUMENT PANEL

If the liftgate flipper glass is open, connection to the rear
window wiper is interrupted preventing activation of the
rear wiper blade. When the liftgate flipper glass is closed,
the rear wiper switch or the ignition switch needs to be
turned OFF and ON to restart the rear wiper.
Adding Washer Fluid
The fluid reservoir for the windshield washers and the
rear window washer is shared. It is located in the front of
the engine compartment on the passenger side and
should be checked for fluid level at regular intervals. Fill
the reservoir with windshield washer solvent (not radia-
tor antifreeze) and operate the system for a few seconds
to flush out the residual water.
Rear Window Defroster
In the lower left of the climate control panel is a
push button for rear window defrosting. An am-
ber indicator in the push button will light when the
defroster is turned on. Push again to turn off the defroster
prior to an automatic time-out.
UNDERSTANDING YOUR INSTRUMENT PANEL 171
4

The defroster will automatically turn off after about ten
minutes. For about five more minutes of operation, push
the button again. To prevent excessive battery drain, use
the defroster only when the engine is operating. The push
button also activates the heated exterior mirrors, if so
equipped.CAUTION!
Use care when washing the inside of the rear win-
dow to prevent damage to heating elements. Use a
soft cloth and a mild washing solution, wiping
parallel to the heating elements. Also, keep all
objects a safe distance from the window to prevent
damaging the heating elements.
172 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
mStarting Procedures.....................176
NNormal Starting......................176
NExtreme Cold Weather (Below ±20ÉF (±29ÉC) . . 177
NIf Engine Fails To Start.................177
NAfter Starting........................178
mEngine Block Heater Ð If Equipped.........178
mAutomatic Transmission..................179
NBrake Transmission Shift Interlock System
(BTSI).............................180NElectronically Controlled Five Speed Automatic
Transmission (4.7L Engine Only)..........180
NProtect Mode - Electronically Controlled
Transmission (4.7L Engine Only)..........180
NGear Ranges.........................181
NOver Temperature Mode................185
NTorque Converter Clutch................185
NRocking The Vehicle...................186
mFour-Wheel Drive Operation...............186
5

NSelec-TractOperating
Instructions/Precautions................186
NShift Positions........................188
NShifting Procedure....................189
NQuadra-Trac IItOperating
Instructions/Precautions Ð If Equipped.....191
NShift Positions........................192
NShifting Procedure....................193
NQuadra-DrivetSystem Ð If Equipped......194
mVari-Lok Front And Rear Axles Ð If Equipped . . 194
mParking Brake.........................194
mAnti-Lock Brake System..................197
mOn-Road Driving Tips...................199
mOff-Road Driving Tips...................200NWhen To Use 4 Lo (Low) Range...........200
NIn Snow, Mud And Sand................200
NHill Climbing........................200
NTraction Downhill.....................201
NAfter Driving Off-Road.................202
mTire Safety Information...................203
NTire Markings........................203
NTire Identification Number (TIN)..........206
NTire Loading And Tire Pressure...........207
mTires Ð General Information...............211
NTire Inflation Pressures.................212
NHigh Speed Operation.................213
NRadial-Ply Tires......................214
174 STARTING AND OPERATING

NTire Spinning........................214
NTread Wear Indicators..................215
NReplacement Tires.....................215
NAlignment And Balance.................217
mTire Pressure Monitor System Ð If Equipped . . . 217
NTire Pressure Monitor System Tire/Wheel
Rotation And Sensor Replacement Ð If
Equipped...........................218
NGeneral Information...................219
mTire Chains...........................220
mTire Rotation Recommendations............220
mFuel Requirements......................221
NReformulated Gasoline.................222
NGasoline/Oxygenate Blends..............222NMMT In Gasoline.....................223
NSulfur In Gasoline.....................223
NMaterials Added To Fuel................224
mFuel Tank Filler Cap (Gas Cap).............224
mTrailer Towing.........................226
NTrailer And Tongue Weight..............228
NCooling System TipsÐTrailer Towing.......229
NMinimum Vehicle Requirements For Trailer
Towing............................230
mRecreational Towing (Behind Motorhome, Etc.) . . 231
NShifting Into Neutral (N)................232
NShifting Out Of Neutral (N)..............233
mSnow Plow...........................234
STARTING AND OPERATING 175
5

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build up may
cause serious injury or death.
The gear selector must be in the N (Neutral) or P (Park)
position before you can start the engine. Apply the brakes
before shifting to any driving gear.
Normal Starting
Normal starting of either a cold or a warm engine is
obtained without pumping or depressing the accelerator
pedal. Turn the key to the START position and release
when the engine starts. If the engine fails to start within
10 seconds, turn the key to the OFF position, wait 5
seconds, then repeat the normal starting procedure.
176 STARTING AND OPERATING