JEEP LIBERTY 2009 KK / 2.G Owners Manual

NOTE:
•The temperature setting can be adjusted at anytime
without affecting automatic operation.
•Pressing 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.
•If 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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280 UNDERSTANDING YOUR INSTRUMENT PANEL

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.
•PanelAir is directed through the outlets in the instrument
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.
•Bi-Level Air is directed through the panel and floor outlets.
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.
•Floor Air is directed through the floor outlets with a
small amount flowing through the defrost and side
window demist outlets.
•Mix 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.
•Defrost Air is directed through the windshield and side
window demist outlets. Use this mode with maxi-
mum blower and temperature settings for best wind-
shield and side window defrosting.
UNDERSTANDING YOUR INSTRUMENT PANEL 281
4

•Air Conditioner ControlPress this button to turn on the air conditioning
during manual operation only. When the air con-
ditioning 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.
•Recirculation Control The system will automatically control recircu-
lation. However, pressing the Recirculation
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 recircula-
tion 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:
•When the ignition switch is turned to the LOCK
position, the recirculation feature will be cancelled.
•In 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.
•Extended 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 out-
side 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, de-
frost, or defrost/floor mode. Attempting to use the
Recirculation while in these modes will cause the LED
in the CONTROL button to blink and then turn off.
282 UNDERSTANDING YOUR INSTRUMENT PANEL

•Most 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 Auto-
matic 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 “Maintenance Procedures” 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
conditioning system at idle for about five minutes in the
fresh air and high blower settings. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
UNDERSTANDING YOUR INSTRUMENT PANEL 283
4

Window Fogging
Interior fogging on the windshield can be quickly re-
moved by turning the mode selector to Defrost. The
Defrost/Floor mode can be used to maintain a clear
windshield and provide sufficient heating. If side win-
dow fogging becomes a problem, increase blower speed.
Vehicle windows tend to fog on the inside in mild but
rainy or humid weather.
NOTE:Recirculate without A/C should not be used for
long periods as fogging may occur.
Side Window Demisters
A side window demister outlet is located at each end of
the instrument panel. These non-adjustable outlets direct
air toward the side windows when the system is in the
Floor, Mix, or Defrost mode. The air is directed at the area
of the windows through which you view the outside
mirrors.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum, they could plug the water drains. In
winter months, make sure the air intake is clear of ice,
slush, and snow.
A/C Air Filter — If Equipped
The A/C Air Filter will reduce, but not eliminate, diesel
and agricultural smells. The filter acts on air coming from
outside the vehicle and recirculated air within the pas-
senger compartment. Refer to “Maintenance Procedures”
in Section 7 of this manual for A/C Air Filter service
information or see your authorized dealer for service.
Refer to the “Maintenance Schedules” in Section 8 of this
manual for filter service intervals.
284 UNDERSTANDING YOUR INSTRUMENT PANEL

Control Setting Suggestions for Various Weather
Conditions
UNDERSTANDING YOUR INSTRUMENT PANEL 285
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STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 291
▫ Normal Starting ..................... 291
▫ Extreme Cold Weather (Below –20°F Or
–29°C) ............................ 291
▫ If Engine Fails To Start ................ 292
▫ After Starting ....................... 293
 Engine Block Heater — If Equipped ........ 293
 Automatic Transmission ................. 294
▫ Brake/Transmission Shift
Interlock System ..................... 295 ▫
Brake/Transmission Interlock Manual
Override .......................... 295
▫ 4–Speed Automatic Transmission ......... 296
 Four-Wheel Drive Operation ............. 302
▫ MP1522 Command-Trac Transfer Case — If
Equipped .......................... 302
▫ MP3022 Selec-Trac II Transfer Case — If
Equipped .......................... 308
 On-Road Driving Tips .................. 313
5

Off-Road Driving Tips .................. 314
▫ When To Use 4WD Low Range .......... 314
▫ Driving Through Water ................ 314
▫ Driving In Snow, Mud And Sand ......... 315
▫ Hill Climbing ....................... 316
▫ Traction Downhill .................... 317
▫ After Driving Off-Road ................ 317
 Power Steering ....................... 318
▫ Power Steering Fluid Check ............. 319
 Parking Brake ........................ 320
 Anti-Lock Brake System ................. 321
 Electronic Brake Control System ........... 324
▫ Anti-Lock Brake System (ABS) ........... 324▫
Traction Control System (TCS) ........... 325
▫ Brake Assist System (BAS) .............. 325
▫ Electronic Roll Mitigation (ERM) ......... 326
▫ Trailer Sway Control (TSC) —
If Equipped ........................ 327
▫ Hill Start Assist (HSA) ................ 328
▫ Hill Descent Control (HDC) —
If Equipped ........................ 331
▫ Electronic Stability Program (ESP) ........ 332
▫ ESP/BAS Warning Light And ESP/TCS
Indicator Light ...................... 336
 Tire Safety Information ................. 337
▫ Tire Markings ....................... 337
▫ Tire Identification Number (TIN) ......... 341
288 STARTING AND OPERATING