2008 JEEP PATRIOT Defrost

If it is necessary to sit in a parked vehicle with the engine
running, adjust your heating or cooling controls to force
outside air into the vehicle. Set the blower at high speed.
WARNING!
If you are required to drive with the deck lid/liftgate
open, make sure that all windows are closed, and the
climate control blower switch is set at high speed.
DO NOT use the recirculation mode.
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.Front seat belt assemblies must be replaced after a
collision. Rear seat belt assemblies must be replaced after
a collision if they have been damaged (bent retractor, torn
webbing, etc.). If there is any question regarding belt or
retractor condition, replace the belt.
Airbag Light
The light should come on and remain on for six to eight
seconds as a bulb check when the ignition switch is first
turned ON. If the LED is not lit during starting, have it
checked. If the light stays on, flickers, or comes on while
driving, have the system checked by an authorized
dealer.
Defroster
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See your
authorized dealer for service if your defroster is inoper-
able.
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Rear Window Features...................162
▫Rear Window Wiper/Washer.............162▫Rear Window Defroster.................163

Roof Luggage Rack — If Equipped..........164
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 77
3

Adding Washer Fluid
The fluid reservoir for the windshield washers and the
rear window washer (if equipped) 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 sol-
vent (not radiator antifreeze) and operate the system for
a few seconds to flush out the residual water.
Rear Window Defroster
The pushbutton is located on
the bottom right side of the
blower control knob. Press
this button to turn on the rear
window defroster. An amber
light shows that the defroster
is on.The defroster will automatically turn off after approxi-
mately ten minutes. For an additional five minutes of
operation, press the button again. To prevent excessive
battery drain, use the defroster only when the engine is
operating.
Rear Wiper Heater Grid
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 163
3

Bi-Level
Air is directed through the panel and floor outlets.
NOTE:There is a difference in temperature between the
upper and lower outlets for added comfort. The warmer
air goes to the floor outlets. This feature gives improved
comfort during sunny but cool conditions.
Floor
Air is directed through the floor outlets and side
window demister outlets with a small amount
through the defrost outlet.
Mix
Air is directed through the floor, defrost and side
window demister outlets. This setting works best in
cold or snowy conditions that require extra heat at
the windshield. This setting is good for maintaining
comfort while reducing moisture on the windshield.Defrost
Air is directed through the windshield and side
window demister outlets. Use this mode with
maximum fan and temperature settings for best wind-
shield and side window defrosting.
NOTE:The air conditioning compressor operates in
both Mix and Defrost or a blend of these modes even if
the Air Conditioning Snowflake button is not pressed.
This dehumidifies the air to help dry the windshield. To
improve fuel economy, use these modes only when
necessary.
Air Outlets
The airflow from each of the instrument panel outlets can
be adjusted for direction and turned on or off to control
air flow.
228 UNDERSTANDING YOUR INSTRUMENT PANEL

Circulation Control
Use this button to choose between
outside air intake or recirculation
of the air inside the vehicle. A
lamp will illuminate when you
are in recirculate mode. Only use
the recirculate mode to tempo-
rarily block out any outside odors,
smoke, or dust and to cool the
interior rapidly upon initial start
up in very hot or humid weather.
NOTE:Continuous use of the recirculate mode may
make the inside air stuffy and window fogging may
occur. Extended use of this mode is not recommended.
In cold or damp weather, the use of the Recirculate
position will cause windows to fog on the inside because
of moisture build up inside the vehicle. For maximum
defogging, select the Outside Air position.NOTE:Recirculation Mode will not operate in floor, mix
or defrost modes.
Air Conditioning
Normal
Use this button to engage the Air
Conditioning. A lamp will illumi-
nate when the Air Conditioning
System is engaged. Once the air
conditioning is engaged, use a
combination of the mode control,
fan speed control, and tempera-
ture control to achieve your de-
sired interior temperature.
NOTE:The air conditioning compressor will not engage
until the engine has been running for about 10 seconds.
230 UNDERSTANDING YOUR INSTRUMENT PANEL

MAX A/C
For maximum cooling select the
air direction to either the Panel or
Bi-Level position using the mode
control. Press the A/C button and
the recirculation button so that
both lamps are illuminated and
set the temperature control to its
coolest setting.
NOTE:
•Recirculation Mode will not operate in floor, mix or
defrost modes.
•See “Circulation Control” in this section, for proper or
extended use of this position.
Air Filtration System — If Equipped
An air filter is included in the optional Security Group.
Filter media includes a particle filtration layer and a
charcoal layer. The filter will reduce, but not eliminate,
diesel and agricultural smells. The filter acts only on air
coming from outside the vehicle; it does not filter air
inside the passenger compartment. See the maintenance
schedule for the filter change interval. The air filter
change interval coincides with engine oil and filter
change intervals. As with oil changes, the interval is
shorter for heavy duty service or dusty conditions. See
your authorized dealer for service.
UNDERSTANDING YOUR INSTRUMENT PANEL 231
4

Window Fogging
Vehicle side windows tend to fog on the inside in mild
rainy or humid weather. To clear the windows, set mode
to the mix or defrost position. Direct the panel outlets
toward the side windows. Do not use recirculate without
A/C for long periods as fogging may occur.
Interior fogging on the windshield can be quickly re-
moved by using the defrost position.
If the fogging problem persists, clean the inside window
surfaces. The cause of undue fogging may be dirt collect-
ing on the inside surface of the glass.
NOTE:In cold weather, the use of the recircu-
late position will cause windows to fog on the
inside because of moisture build up inside the
vehicle. Moisture and ice can also accumulate
on the inside of the sheet metal and may result inheadliner and/or electronic component damage. For
maximum defogging, press the recirculation button until
recirculate is off.
Summer Operation
Air conditioned vehicles must be protected with a high-
quality antifreeze coolant to provide proper corrosion
protection and to raise the boiling point of the coolant for
protection against overheating. A 50% concentration is
recommended.
Outside Air Intake
When operating the system during the winter months,
make sure the air intake, directly in front of the wind-
shield, is free of ice, slush, snow or other obstructions
such as leaves. Leaves collected in the air-intake plenum
may reduce air flow and plug the plenum water drains.
The blower air will heat faster in cold weather if you use
only a low blower speed for the first few minutes of
vehicle operation.
UNDERSTANDING YOUR INSTRUMENT PANEL 233
4

Side Window Demisters
A side window demister outlet is at each end of the
instrument panel. These nonadjustable outlets direct air
toward the side windows when the system is in either the
FLOOR, MIX, or DEFROST mode. The air is directed at
the area of the windows through which you view the
outside mirrors.
234 UNDERSTANDING YOUR INSTRUMENT PANEL