2004 JEEP GRAND CHEROKEE lock

Reception Quality
Satellite reception may be interrupted due to one of the
following reasons.
²The vehicle is parked in an underground parking
structure or under a physical obstacle.
²Dense tree coverage may interrupt reception in the
form of short audio mutes.
²Driving under wide bridges or along tall buildings can
cause intermittent reception.
²Placing objects over or too close to the antenna can
cause signal blockage.
10±DISC REMOTE CD CHANGER
Loading the CD Changer
Removing the CD Changer Magazine
NOTE:Always keep the CD changer door closed except
when ejecting or installing the magazines. The door is
designed to keep dust, dirt, and foreign objects out of the
CD changer. Handle the magazine with reasonable care.
The magazine may crack if dropped or knocked against a
hard surface.
156 UNDERSTANDING YOUR INSTRUMENT PANEL

Mode Selection
The mode selector (the right
rotary knob) can be set in any
of the following positions:
OFF
This position turns off the blower motor and outside air
will not pass through any outlets.
Recirculation
The recirculation feature can be selected with the
mode control knob. Outside air is normally
drawn into the vehicle in all of the other modes, such as
panel air, bi-level, floor, floor/defrost, and the defrost airdistribution outlets. Air flows through the outlets located
in the instrument panel. Use this mode to rapidly cool the
inside of the vehicle. The Recirculation mode can also be
used to temporarily block out outside odors, smoke, and
dust.
Panel
Air flows through the outlets located in the instru-
ment panel.
Bi-Level
Air flows both through the outlets located in the
instrument panel and those located on the floor.
Floor
Air flows through the floor outlets located under
the instrument panel and into the rear seating area
through vents under the front seats.
166 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
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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

WARNING!
Never pour fuel or other flammable liquids into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in a flash fire causing
serious personal injury.
Extreme Cold Weather (below ±20ÉF (±29ÉC)
To insure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
If Engine Fails to Start
If the engine fails to start after you have followed the
ªNormal Startingº or ªExtreme Cold Weatherº proce-
dures, it may be flooded. Push the accelerator pedal all
the way to the floor and hold it there while cranking the
engine. This should clear any excess fuel in case the
engine is flooded.NOTE:To prevent damage to the starter, do not crank
the engine for more than 15 seconds at a time. Wait 10 to
15 seconds before trying again.
If the engine has been flooded, it may start to run, but not
have enough power to continue running when the key is
released. If this occurs, continue cranking with the accel-
erator pedal pushed all the way to the floor. Release the
accelerator pedal and the key once the engine is running
smoothly.
If the engine shows no sign of starting after two 15±
second periods of cranking with the accelerator pedal
held to the floor, the ªNormal Startingº or ªExtreme Cold
Weatherº procedures should be repeated.
STARTING AND OPERATING 177
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After Starting
The idle speed will automatically decrease as the engine
warms up.
CAUTION!
Long periods of engine idling, especially at high
engine speeds can cause excessive exhaust tempera-
tures which can damage your vehicle. Do not leave
your vehicle unattended with the engine running.
ENGINE BLOCK HEATER Ð IF EQUIPPED
The engine block heater warms engine coolant and
permits quicker starts in cold weather. Connect the cord
to a standard 110-115 volt AC electrical outlet with
grounded, three wire extension cord.
Use the heater when temperatures below 0ÉF (-18ÉC) are
expected to last for several days.The engine block heater cord is located:
²6-cylinder engine Ð bundled and fastened to the
injector rail between injectors 1 and 2.
²V-8 engine Ð coiled and strapped to the transmission
filler tube.
WARNING!
Remember to disconnect the cord before driving.
Damage to the 110-115 volt AC electrical cord could
cause electrocution.
178 STARTING AND OPERATING

Brake Transmission Shift Interlock System (BTSI)
This vehicle is equipped with a brake transmission shift
interlock system (BTSI) that holds the gearshift lever in
the P (Park) position when the ignition switch is in an
unlocked position. To move the gear selector lever out of
the P (Park) position, the ignition switch must be turned
to the OFF, ON, or START position, the brake pedal and
the button on the front side of the shifter handle must be
depressed.
Electronically Controlled Five Speed Automatic
Transmission (4.7L Engine Only)
This electronically controlled transmission provides a
precise shift schedule. The transmission electronics are
self calibrating; therefore, the first few shifts on a new
vehicle may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a
couple hundred miles (kilometers).
Protect Mode - Electronically Controlled
Transmission (4.7L Engine Only)
This transmission is monitored electronically for abnor-
mal conditions. If an abnormal condition is detected, the
transmission's electronic controller will automatically
select direct gear (in the Drive position) or 2nd gear (in
the 2 or 1 position). This feature will allow the vehicle to
be driven to the dealer for service minimizing any
damage to the transmission. Some conditions that will
cause the transmission to use this alternate gear selection
are momentary and the transmission can be reset to the
normal shift program by performing the following:
²Stop the vehicle and shift into P (Park).
²Turn the ignition key to the OFF position and then
restart the engine.
²Shift into the desire shift range and resume driving.
180 STARTING AND OPERATING

NOTE:Even if the transmission can be reset, it is
recommend that you see your dealer at your earliest
possible convenience. Your dealer has the proper diag-
nostic equipment to determine if the problem could
recur. If the transmission is cannot be reset, dealer service
is required.
Gear Ranges
DO NOT race the engine when shifting from P (Park) or
N (Neutral) position into another gear range.
PÐPark
Supplements the parking brake by locking the transmis-
sion. The engine can be started in this range. Never use P
(Park) while the vehicle is in motion. Apply the parking
brake when leaving the vehicle in this range. Always
apply the parking brake first, then place the selector in P
(Park) position.
WARNING!
Unintended movement of a vehicle could injure
those in and near the vehicle. As with all vehicles,
you should never exit a vehicle while the engine is
running. Before exiting a vehicle, you should always
shift the vehicle into P (Park), remove the key from
the ignition, and apply the parking brake. Once the
key is removed from the ignition, the transmission
shift lever is locked in the P (Park) position, securing
the vehicle against unwanted movement. Further-
more, you should never leave children unattended
inside a vehicle.
The following indicators should be used to ensure that
you have engaged the transmission shift lever into the P
(Park) position:
STARTING AND OPERATING 181
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