air condition JEEP LIBERTY 2008 KK / 2.G User Guide

Blower Control
Use this control to regulate the
amount of air forced through the ven-
tilation system in any mode. The
blower speed increases as you move
the control to the right from the ªOº
(Off) position. There are four blower
speeds.
Temperature Control
Use this control to regulate the tem-
perature of the air inside the passenger
compartment. The blue area of the
scale indicates cooler temperatures
while the red area indicates warmer
temperatures.NOTE:If your air conditioning performance seems
lower than expected, check the front of the A/C con-
denser: located in front of the radiator, for an accumula-
tion of dirt or insects. Clean with a gentle water spray
from behind the radiator and through the condenser.
Fabric front fascia protectors may reduce airflow to the
condenser, reducing air conditioning performance.
Mode Control (Air Direction)
Use this control to choose from several
patterns of air distribution. You can
select either a primary mode as iden-
tified by the symbols on the control, or
a blend of two of these modes. The
closer the setting is to a particular
symbol, the more air distribution you
receive from that mode.
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4

²Panel
Air is directed through the outlets in the instru-
ment panel. These outlets can be adjusted to
direct airflow.
NOTE:The center instrument panel outlets can be
aimed so that they are directed toward the rear seat
passengers for maximum airflow to the rear.
²Bi-Level
Air is directed through the panel and floor out-
lets.
NOTE:For all settings except full cold or full hot, there
is a difference in temperature between the upper and
lower outlets. The warmer air flows to the floor outlets.
This feature gives improved comfort during sunny but
cool conditions.
²Floor
Air is directed through the floor outlets with a
small amount flowing through the defrost and
side window demist outlets.
²Mix
Air is directed through the floor, defrost, and
side window demist outlets. This setting works
best in cold or snowy conditions that require
extra heat to the windshield. This setting is good for
maintaining comfort while reducing moisture on the
windshield.
²Defrost
Air is directed through the windshield and side
window demist outlets. Use this mode with
maximum blower and temperature settings for best
windshield and side window defrosting.
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NOTE:The air conditioning compressor operates in Mix
and Defrost, or a blend of these modes, even if the Air
Conditioning Snowflake button is not pressed. This de-
humidifies the air to help dry the windshield. To improve
fuel economy, use these modes only when necessary.
²Recirculation Control
Use this button to block the flow of outside
air from coming into the passenger compart-
ment. A light will illuminate when the sys-
tem is in recirculation mode. Only use the
recirculation mode as a temporary means to 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:
²Continuous use of the recirculation mode may make
the inside air stuffy and window fogging may occur.
Extended use of this mode is not recommended.
²The use of the recirculation mode in cold or damp
weather will cause windows to fog on the inside,
because of moisture build-up inside the vehicle. Select
the Outside Air position for maximum defogging.
²The A/C will engage automatically to prevent fogging
when the recirculation button is pressed and the mode
control is set to panel or panel / floor.
²The A/C can be deselected manually without disturb-
ing the mode control selection.
Air Conditioning Control
Use this button to engage the Air Conditioning. A
light will illuminate when the Air Conditioning
System is engaged
NOTE:The air conditioning compressor will not engage
until the engine has been running for about 10 seconds.
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4

cabin infrared sensor mounted between the sun-visors
and from various sensors located throughout the vehicle.
The controls on the climate control provide the system
with operator input. Other sensors take account of ve-
hicle speed, A/C pressure, outside temperature, and
engine cooling temperature. Using all of these inputs, the
system automatically adjusts airflow temperature, air-
flow distribution, airflow volume, and the amount of
outside air recirculation. This maintains a comfortable
temperature even under changing conditions.
Operation of the system is quite simple.
1. Turn the Mode Control knob (on the right) and the
Blower Control knob (on the left) to AUTO.
NOTE:The AUTO position performs best for front seat
occupants only.2. Dial in the temperature you would
like the system to maintain by rotating
the Temperature Control knob.
Once the comfort level is selected, the system will main-
tain that level automatically using the heating system.
Should the desired comfort level require air conditioning,
the system will automatically make the adjustment.
You will experience the greatest efficiency by simply
allowing the system to function automatically. Selecting
the ªOº (Off) position on the blower control stops the
system completely and closes the outside air intake.
72ÉF (22ÉC) is the recommended setting for maximum
comfort for the average person; however, this may vary.
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4

NOTE:
²The temperature setting can be adjusted at any time
without affecting automatic operation.
²Pressing the Air Conditioning Control button while in
AUTO mode will cause the LED in the control button
to flash three times and then turn off. This indicates
that the system is in AUTO mode and requesting the
air conditioning is not necessary.
²If your air conditioning performance seems lower than
expected, check the front of the A/C condenser: lo-
cated in front of the radiator, for an accumulation of
dirt or insects. Clean with a gentle water spray from
behind the radiator and through the condenser. Fabric
front fascia protectors may reduce airflow to the
condenser, reducing air conditioning performance.
Manual Operation
This system offers a full complement of manual override
features, which consist of Blower Preferred Automatic,
Mode Preferred Automatic, or Blower and Mode Pre-
ferred Automatic. This means the operator can override
the blower, the mode, or both. There is a manual blower
range for times when the AUTO setting is not desired.
The blower can be set to any fixed blower speed by
rotating the Blower Control knob (on the left).
NOTE:Please read the Automatic Temperature Control
Operation Chart that follows for details.
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The operator can override the AUTO mode setting to
change airflow distribution by rotating the Mode Control
knob (on the right) to one of the following positions.
²Panel
Air is directed through the outlets in the instru-
ment panel. These outlets can be adjusted to
direct airflow.
NOTE:The center instrument panel outlets can be
aimed so that they are directed toward the rear seat
passengers for maximum airflow to the rear.
²Bi-Level
Air is directed through the panel and floor out-
lets.
NOTE:For all settings except full cold or full hot, there
is a difference in temperature between the upper and
lower outlets. The warmer air flows to the floor outlets.
This feature gives improved comfort during sunny but
cool conditions.
²Floor
Air is directed through the floor outlets with a
small amount flowing through the defrost and
side window demist outlets.
²Mix
Air is directed through the floor, defrost, and
side window demist outlets. This setting works
best in cold or snowy conditions that require
extra heat to the windshield. This setting is good for
maintaining comfort while reducing moisture on the
windshield.
²Defrost
Air is directed through the windshield and side
window demist outlets. Use this mode with
maximum blower and temperature settings for best
windshield and side window defrosting.
268 INSTRUMENT PANEL AND CONTROLS

²Air Conditioner Control
Press this button to turn on the air conditioning
during manual operation only. When the air
conditioning is turned on, cool dehumidified
air will flow through the outlets selected with the
Mode control dial. Press this button a second time to
turn off the air conditioning. An LED in the button
illuminates when manual compressor operation is
selected.
²Recirculation Control
The system will automatically control recir-
culation. However, pressing the Recircula-
tion Control button will temporarily put the
system in recirculation mode (ten minutes).
This can be used when outside conditions such as
smoke, odors, dust, or high humidity are present.
Activating recirculation will cause the LED in the
control button to illuminate. After ten minutes, the
system will return to normal AUTO mode function
and the LED will turn off.NOTE:
²When the ignition switch is turned to the LOCK
position, the recirculation feature will be cancelled.
²In cold weather, use of the Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in the floor, defrost, or defrost/
floor mode in order to improve window clearing.
Recirculation will be disabled automatically if these
modes are selected.
²Extended use of recirculation may cause the windows
to fog. If the interior of the windows begins to fog,
press the Recirculation button to return to outside air.
Some temp/humidity conditions will cause captured
interior air to condense on windows and hamper
visibility. For this reason, the system will not allow
Recirculation to be selected while in floor, defrost, or
defrost/floor mode. Attempting to use the recircula-
tion while in these modes will cause the LED in the
control button to blink and then turn off.
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4

²Most of the time, when in Automatic Operation, you
can temporarily put the system into Recirculation
Mode by pressing the Recirculation Button. However,
under certain conditions, while in Automatic Mode,
the system is blowing air out the defrost vents. When
these conditions are present, and the Recirculation
Button is pressed, the indicator will flash and then
turn off. This tells you that you are unable to go into
recirculation mode at this time. If you would like the
system to go into Recirculation Mode, you must first
move the Mode Knob to Panel, Panel/Floor and then
press the Recirculation Button. This feature reduces
the possibility of window fogging.
Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system in air-conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A 50% solution of ethylene
glycol antifreeze coolant in water is recommended. Refer
to ªMaintenance Proceduresº in Section 7 of this manual
for proper coolant selection.
Winter Operation
Use of the air Recirculation mode during winter months
is not recommended because it may cause window
fogging.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower settings. This will insure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
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check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under inflated.
CAUTION!
After inspecting or adjusting the tire pressure, al-
ways reinstall the valve stem cap (if equipped). This
will prevent moisture and dirt from entering the
valve stem, which could damage the valve stem.
Inflation pressures specified on the placard are always
ªcold tire inflation pressure.º Cold tire inflation pressure
is defined as the tire pressure after the vehicle has not
been driven for at least 3 hours, or driven less than 1 mile
(1 km) after a 3 hour period. The cold tire inflation
pressure must not exceed the maximum inflation pres-
sure molded into the tire sidewall.Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with
temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12É F (7É C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in
the winter.
Example: If garage temperature = 68É F (20É C) and the
outside temperature = 32É F (0É C) then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12É F (7É C) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.
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Tire Pressures for High Speed Operation
The manufacturer advocates driving at safe speeds
within posted speed limits. Where speed limits or condi-
tions are such that the vehicle can be driven at high
speeds, maintaining correct tire inflation pressure is very
important. Increased tire pressure and reduced vehicle
loading may be required for high-speed vehicle opera-
tion. Refer to original equipment or an authorized tire
dealer for recommended safe operating speeds, loading
and cold tire inflation pressures.
WARNING!
High speed driving with your vehicle at or above
maximum load is dangerous. The added strain on
your tires could cause them to fail. You could have a
serious accident. Don't drive a vehicle loaded to the
maximum capacity at continuous speeds above 75
mph (120 km/h).
Radial-Ply Tires
WARNING!
Combining radial ply tires with other types of tires
on your vehicle will cause your vehicle to handle
poorly. The instability could cause an accident. Al-
ways use radial tires in sets of four. Never combine
them with other types of tires.
Cuts and punctures in radial tires are repairable only in
the tread area because of sidewall flexing. Consult your
dealer for radial tire repairs.
Tire Spinning
When stuck in mud, sand, snow, or ice conditions, do not
spin your vehicle's wheels above 35 mph (55 km/h).
340 STARTING AND OPERATING