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2. Left Front Temperature Control
Provides left front seat occupant with independent tem-
perature control. Turn left for cooler or right for warmer
temperature settings.
3. Display Screen
Shows the current blower speed, mode, and temperature
settings, and it will display an indicator when the A/C is
ON.
4. Right Front Temperature Control
Provides right front seat occupant with independent
temperature control. Turn left for cooler or right for
warmer temperature settings.
5. A/C Button
Press and release to change the current setting.
6. AUTO Button
Controls airflow temperature, distribution, volume, and
the amount of air recirculation automatically. Press andrelease to select. Refer to “Automatic Operation — Two-
and Three-Zone ATC” for more information.
7. Mode Button
Press the DOWN or UP arrow to change the mode of air
distribution to Floor, Panel, Bi-Level, or Mix.
8. Recirculation Mode Button
Press and release to change the current setting. The
indicator illuminates when ON. See Note
1
9. Defrost Mode Button
Press and release to select. The indicator illuminates
when ON.
10. Front Blower Control
Press the DOWN arrow to decrease or the UP arrow to
increase front blower speed.
11. SYNC Button
Press and release to control the temperature setting for all
three zones from the Left Front Temperature Control.
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Note1-To prevent window fogging, Recirculation Mode
will not operate when either Defrost or Mix mode is
selected. Doing so will cause the indicator to blink and
then turn OFF. 1. Rear Blower Control
Press the DOWN arrow to decrease or the UP arrow to
increase rear blower speed.
2. Rear Temperature Control
Provides independent temperature control for the rear
cabin. Turn left for cooler or right for warmer tempera-
ture settings in the rear cabin.
3. Rear Mode Button
Press the DOWN or UP arrow to change the mode of rear
cabin air distribution to Floor, Panel, or Bi-Level.
4. REAR Button
Turns the climate control in the overhead console above
the second row passenger seats ON and OFF. Press and
release the button to change the current setting. The
indicator illuminates when ON.
Three-Zone ATC Lower Control Panel
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5. Electric Rear Window Defroster Button
Refer to “Rear Window Features” in Section 3 for more
information.
The Rear-Zone ATC for the rear passengers is in the
overhead console above the second row passenger seats.1. AUTO
Controls airflow temperature, distribution, and volume
automatically. Turn to this position to select. Refer to
“Automatic Operation — Rear-Zone ATC” for more
information.
2. Rear Blower Control
The blower speed increases as you move the control to
the right from the “O” (Off) position. There are 10 blower
speeds.
3. Rear Temperature Control
Provides rear seat occupants with independent tempera-
ture control. Turn left for cooler or right for warmer
temperature settings in the rear cabin. When the rear
climate control is turned OFF by the rear button on the
Three – Zone ATC, a red indicator will appear at the
bottom of the Rear Temperature Control Knob.
Rear-Zone ATC
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4. Rear Mode Control
Turn to select Panel, Bi-Level, or Floor for the mode of
rear cabin air distribution.
Automatic Operation — Two- and Three-Zone ATC
The Two- and Three-Zone ATC systems automatically
maintain the climate in the cabin of the vehicle. To
accomplish this, the system gathers information from the
climate controls, from a dual sun-sensor located in the
top of the instrument panel, from an infrared sensor
located between the sun visors, and from various sensors
located throughout the vehicle.
•The climate controls provide the system with operator
input.
•The dual sun-sensor monitors sun load coming
through the windshield.
•The infrared sensor independently measures the sur-
face temperature of the driver and passengers.
•Other sensors take into account vehicle-speed, A/C
pressure, outside temperature, and engine cooling
temperature.
Using all of these inputs, the system automatically ad-
justs airflow temperature, airflow distribution, airflow
volume, and the amount of outside air recirculation. This
maintains a comfortable temperature even under chang-
ing conditions.
To select automatic operation, perform the following
steps:
1. Press and release the AUTO button and the ATC
displays the word “AUTO,” along with current settings
for temperature, mode, and blower speed. It also displays
the snowflake icon if the A/C is running.
2. Turn the Left Front Temperature Control, the Right
Front, and if so equipped, the Rear Temperature Control
to dial in the temperature that you want the system to
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maintain for each zone. On Three-Zone ATC systems, if
so desired, push and release the SYNC button. Then turn
the Left Front Temperature Control to dial in the tem-
perature that you want the system to maintain for all
three zones.
Once the comfort level is selected, the system will main-
tain that level automatically using the heating system.
Should the desired comfort level require A/C, the system
will automatically make the adjustment. You will expe-
rience the greatest efficiency by simply allowing the
system to function automatically. 72°F (22°C) is the
recommended setting for maximum comfort for the
average person; however, this may vary.
NOTE:
•The temperature setting can be adjusted at anytime
without affecting automatic operation.
•Pressing the A/C button, or adjusting the blower
speed, or changing the mode of air distribution while
in AUTO mode will cancel automatic operation.
Automatic Operation — Rear-Zone ATC
1. Press the REAR button on the Three-Zone ATC in the
instrument panel to turn ON the Rear-Zone ATC in the
overhead console.
2. Turn the Rear Blower control on the Rear-Zone ATC in
the overhead console to the AUTO position.
3. Turn the Rear Temperature control on the Rear-Zone
ATC in the overhead console to dial in the temperature
that you want the system to maintain in the rear cabin.
NOTE:
•The temperature setting can be adjusted at anytime
without affecting automatic operation.
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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. Refer to “Cooling System”
under “Maintenance Procedures” and to “Fluids, Lubri-
cants, and Genuine Parts” in Section 7 for information
pertaining to the cooling system and 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.
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.
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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 for A/C Air Filter service information or see
your authorized dealer for service. Refer to the Mainte-
nance Schedule in Section 8 for filter service intervals.
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Control Setting Suggestions for Various Weather Conditions
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