2004 JEEP GRAND CHEROKEE climate control

garage, and never sit in a parked vehicle with the
engine running for a extended period. If the vehicle is
stopped in an open area with engine running for more
than a short period, adjust the ventilation system to
force fresh, outside air into the vehicle.
²Guard against carbon monoxide with proper mainte-
nance. Have the exhaust system inspected every time
the vehicle is raised. Have any abnormal conditions
repaired promptly. Until repaired, drive with all side
windows fully open.
²Always run the climate control in panel or floor mode
when driving with any windows open, even if only
slightly, to help keep fresh air circulating inside ve-
hicle. Otherwise poisonous gases could be drawn into
the vehicle.
Safety Checks You Should Make Inside The
Vehicle
Seat Belts
Inspect the belt system periodically, checking for cuts,
frays and loose parts. Damaged parts must be replaced
immediately. Do not disassemble or modify the system.
Seat belt assemblies must be replaced after an accident if
they have been damaged (bent retractor, torn webbing,
etc.). If there is any question regarding belt or retractor
condition, replace the belt.
Airbag Warning Light
The light should come on and remain on for 6 to 8
seconds as a bulb check when the ignition switch is first
turned on. If the bulb is not lit during starting, have it
replaced. If the light stays on or comes on while driving,
have the system checked by an authorized dealer.
52 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

to turn this feature on or off. Also, refer to ªWindshield
Wipers and Washersº in this section for more information
NOTE:When your headlights come on during the
daytime, the instrument panel lights will automatically
dim to the lower nighttime intensity. Refer to ªInstru-
ment Panel and Interior Lightsº below for setting the
instrument panel lights to full daytime intensity.
Instrument Panel and Interior Lights
When the multi-function control lever is in the parklight,
headlights, or AUTO position (if equipped), rotating the
center portion of the lever up and down will increase and
decrease the brightness (dimmer control) of the instru-
ment panel lights. Full daytime brightness on all elec-
tronic displays (odometer, overhead console, radio, and
Automatic Climate Control (if equipped) is obtained by
rotating the center portion of the control to the first
detent above the dimmer range. Rotating the control to
the second detent above the dimmer range turns theinterior lights on. Rotating the control to the ªOffº
(extreme bottom) position disables all the interior lights,
even when the doors and liftgate are open. While in the
ªOffº position the instrument panel lighting is at the
lowest light level and may not be suitable for night
driving.
Daytime Running Lights Ð Canada Only
The headlights come on at a low intensity level whenever
the engine is running. The lights remain on until the
ignition switch is turned OFF or the parking brake is
engaged. The headlight switch must be used for normal
night time driving.
Lights-On Reminder
If the headlights or parking lights are on after the ignition
is turned OFF, a chime will sound when the driver's door
is opened.
78 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

mRemote Sound System Controls Ð If Equipped . . 160
NRadio Operation......................161
NTape Player.........................161
NCD Player Ð Single Disc In Radio.........162
NCD Player Ð 10 Disc In Cargo Area........162
mCassette Tape And Player Maintenance.......162
mCD/DVD Disc Maintenance...............163
mRadio Operation And Cellular Phones........164
mClimate Controls.......................164
NAir Conditioning.....................164NBlower Control.......................165
NTemperature Control...................165
NMode Selection.......................166
NInfrared Dual-Zone Climate Control Ð If
Equipped...........................167
NWindow Fogging.....................170
mRear Window Features...................170
NRear Window Wiper/Washer.............170
NRear Window Defroster.................171
UNDERSTANDING YOUR INSTRUMENT PANEL 125
4

6. Do not expose the disc to direct sunlight.
7. Do not store the disc where temperatures may become
too high.
RADIO OPERATION AND CELLULAR PHONES
Under certain conditions, the cellular phone being On in
your vehicle can cause erratic or noisy performance from
your radio. This condition may be lessened or eliminated
by relocating the cellular phone antenna. This condition
is not harmful to the radio. If your radio performance
does not satisfactorily ªclearº by the repositioning of the
antenna, it is recommended that the radio volume be
turned down or off during cellular phone operation.
CLIMATE CONTROLS
Air Conditioning
The controls for the heating/air conditioning and venti-
lation system in this vehicle consist of a series of rotary
knobs. These comfort controls can be set to obtain desired
interior conditions.
Air conditioning can be obtained by depressing the
ªA/Cº button on the control panel and setting the
appropriate rotary knobs to obtain the desired comfort
level.
164 UNDERSTANDING YOUR INSTRUMENT PANEL

Defrost/Floor
Air flows through the front and rear floor outlets
and the outlets at the base of the windshield.
Defrost
Air is directed to the windshield through the
outlets at the base of the windshield.
NOTE:To improve fuel economy, leave in defrost only
when necessary.
Infrared Dual-Zone Climate Control Ð If Equipped
The Infrared Dual-Zone Climate Control System auto-
matically maintains the interior comfort level desired by
the driver and passenger. This is accomplished by using
a dual infrared sensor located in the face of the control
unit. The dual infrared sensor independently measures
the surface temperature of the driver and passenger.
Based on the sensor input, the system automatically
adjusts the air flow temperature, the air flow volume, andamount of outside air recirculation. This maintains a
comfortable temperature even under changing condi-
tions.
Operation of the system is quite simple. Begin by turning
the right mode knob to AUTO. Dial in the temperature
you would like the system to maintain by rotating the
driver's or passenger's control knob. Once the comfort
UNDERSTANDING YOUR INSTRUMENT PANEL 167
4

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

center identifies each component for ease of replacement,
if necessary. ªCartridgeº fuses and relays can be obtained
from your authorized dealer.
VEHICLE STORAGE
If you are leaving your vehicle dormant for more than 21
days you may want to take steps to protect your battery.
You may:
²Remove Cartridge fuse #15 in the Power Distribution
Center labeled Ignition-Off Draw (IOD).
²Store the removed IOD fuse in the Power Distribution
Center location #11 labeled ªIOD Storage.º
²Or, disconnect the negative cable from the battery.
²Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This willinsure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior Lights Bulb Type
A/C Heater.................... NotServiceable
Ashtray Receiver Light.................... 161
Climate Control
(Dual Zone Automatic)............ NotServiceable
Climate Control (Manual A/C)................ 74
Front Reading........................... 192
Glove Box Light......................... 194
Overhead Console........................ 192
Radio................................ ASC
Rear Cargo Light.......................214±2
Passenger Assist Handle Lights.............214±2
Lighted Vanity Mirror *.............. P/N6501966
MAINTAINING YOUR VEHICLE 289
7

Cassette Tape and Player Maintenance......... 162
Cassette Tape Player...................143,147
Catalytic Converter...................... 261
Caution, Exhaust Gas...................... 51
CD Changer......................140,150,156
CD Player....................136,139,143,149
CD Player Maintenance................... 163
Cellular Phone.......................... 164
Center Lap Belts......................... 33
Chains, Tire............................ 220
Chart, Tire Sizing........................ 204
Check Engine Light...................... 130
Checks, Safety.........................52,53
Child Restraint.......................... 44
Child Restraint Tether Anchors............... 47
Child Safety Locks........................ 18
Climate Control......................... 164
Clock................................ 135
Compact Disc Maintenance................. 163Compact Spare Tire...................... 241
Compass...........................101,104
Compass Calibration..................... 104
Compass Variance....................... 105
Computer, Trip/Travel.................... 101
Console, Overhead....................... 89
Contract, Service........................ 320
Converter, Catalytic...................... 261
Cooling System......................... 269
Adding Coolant (Antifreeze).............. 271
Coolant Capacity...................... 291
Coolant Level......................... 272
Disposal of Used Coolant................ 270
Drain, Flush, and Refill.................. 270
Inspection........................... 269
Points to Remember.................... 273
Pressure Cap......................... 272
Radiator Cap......................... 272
Selection of Coolant..................270,291
330 INDEX