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•The system provides set-and-forget operation for op-
timum comfort and convenience.
•
The system can also be controlled manually, if desired.
The ATC system automatically maintains the interior
comfort level desired by the driver and passenger.1. A/C Button
Press and release to change the current Air Conditioning
(A/C) setting, the indicator illuminates when A/C is ON.
Performing this function will cause the ATC to switch
into manual mode.
2. Recirculation Control Button
Press and release to change the current setting, the
indicator illuminates when ON.
3. Left Front Seat Occupant Temperature Display
This display shows the temperature setting for the left
front seat occupant.
4. Mode Display
This display shows the current Mode selection (Panel,
Bi-Level, Floor, Mix).
Automatic Temperature Control (ATC) Panel
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5. Blower Control Display
This display shows the current Blower speed selection.
6. Right Front Seat Occupant Temperature Display
This display shows the temperature setting for the right
front seat occupant.
7. Front Defrost Button
Press and release to change the current setting, the
indicator illuminates when ON. Performing this function
will cause the ATC to switch into manual mode. The
blower will engage immediately if the Defrost mode is
selected.
8. Passenger Temperature Control Up Button
Provides the passenger with independent temperature
control. Push the button for warmer temperature set-
tings.9. Passenger Temperature Control Down Button
Provides the passenger with independent temperature
control. Push the button for cooler temperature settings.
10. Auto Temperature Control Button
Controls airflow temperature, distribution, volume, and
the amount of air recirculation automatically. Press and
release to select. Refer to “Automatic Operation” for
more information. Performing this function will cause
the ATC to switch between manual mode and automatic
modes.
11. Blower Control
There are seven blower speeds, the blower speed in-
creases as you move the control to the right from the
lowest blower setting. Performing this function will
cause the ATC to switch into manual mode.
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12. Climate Control OFF Button
Press and release this button to turn the Climate Control OFF.
If the control is OFF, any button will turn the control on.
13. Mode Control Button
Press and release to select between Modes (Panel, Bi-
Level, Floor, Mix). Performing this function will cause the
ATC to switch into manual mode.
14. SYNC Button
Press and release to control the temperature setting for
both zones from the driver temperature control.
15. Driver Temperature Control Down Button
Provides the driver with independent temperature con-
trol. Push the button for cooler temperature settings.16. Driver Temperature Control Up Button
Provides the driver with independent temperature con-
trol. Push the button for warmer temperature settings.Automatic Operation
1. Press the AUTO button on the Automatic Temperature
Control (ATC) Panel.
2. Next, adjust the temperature you would like the
system to maintain by adjusting the driver and front
passenger temperature control buttons. Once the de-
sired temperature is displayed, the system will
achieve and automatically maintain that comfort level.
3. When the system is set up for your comfort level, it is
not necessary to change the settings. You will experi-
ence the greatest efficiency by simply allowing the
system to function automatically.
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NOTE:
•It is not necessary to move the temperature settings for
cold or hot vehicles. The system automatically adjusts
the temperature, mode and fan speed to provide
comfort as quickly as possible.
•The temperature can be displayed in U.S. or Metric
units by selecting the US/M customer-programmable
feature. Refer to the “Electronic Vehicle Information
Center (EVIC) — Customer-Programmable Features
(SETUP)” in this section of the manual.
To provide you with maximum comfort in the Automatic
mode, during cold start-ups, the blower fan will remain
on low until the engine warms up. The blower will
increase in speed and transition into Auto mode.
Manual Operation
This system offers a full complement of manual override
features.NOTE:Each of these features operate independently
from each other. If any one feature is controlled manually,
temperature control will continue to operate automati-
cally.
Blower Control
There are seven fixed blower speeds.
Use the outer dial control to regulate the
amount of air forced through the system
in any mode you select. The blower
speed increases as you move the control
clockwise and decreases when you move
the control counter-clockwise.
The blower fan speed can be set to any fixed speed by
adjusting the blower control outer dial. The fan will now
operate at a fixed speed until additional speeds are selected.
This allows the front occupants to control the volume of air
circulated in the vehicle and cancel the Auto mode.
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The operator can also select the direction of the airflow
by selecting one of the following positions.
Panel Mode
Air comes from the outlets in the instrument
panel. Each of these outlets can be individually
adjusted to direct the flow of air. The air vanes of the
center outlets and outboard outlets can be moved up and
down or side to side to regulate airflow direction. There
is a shut off wheel located below the air vanes to shut off
or adjust the amount of airflow from these outlets.
Bi-Level Mode
Air comes from the instrument panel outlets, floor
outlets and defrost outlets.
NOTE:In many temperature positions, the Bi–Level
mode is designed to provide cooler air out of the panel
outlets and warmer air from the floor outlets.Floor Mode
Air comes from the floor outlets. A slight amount
of air is directed through the defrost and side
window demister outlets.
Mix Mode
Air comes from the floor, defrost and side window
demist outlets. This mode works best in cold or
snowy conditions. It allows you to stay comfortable
while keeping the windshield clear.
Defrost Mode
Air comes from the windshield and side window
demist outlets. Use Defrost mode with maximum
temperature settings for best windshield and side win-
dow defrosting. When the defrost mode is selected, the
blower will automatically default to medium-high unless
the blower is controlled manually.
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NOTE:While operating in the other modes, the system
will not automatically sense the presence of fog, mist or
ice on the windshield. Defrost mode must be manually
selected to clear the windshield and side glass.
Air Conditioning (A/C)
The Air Conditioning (A/C) button allows the operator
to manually activate or deactivate the air conditioning
system. When in A/C mode and the ATC is set to a cool
temperature, dehumidified air flows through the air
outlets. If Economy mode is desired, press the A/C
button to turn off the A/C mode in the ATC display and
deactivate the A/C system. Also, make sure to select only
Panel, Bi-Level or Floor modes.NOTE:
•If the system is in Mix, Floor or Defrost Mode, the A/C
can be turned off, but the A/C system shall remain
active to prevent fogging of the windows.
•If fog or mist appears on the windshield or side glass,
select Defrost mode and increase blower speed.
Recirculation Control
When outside air contains smoke, odors, or high
humidity, or if rapid cooling is desired, you may
wish to recirculate interior air by pressing the
Recirculation control button. Recirculation mode
should only be used temporarily. The recirculation LED will
illuminate when this button is selected. Push the button a
second time to turn off the Recirculation mode LED and
allow outside air into the vehicle.
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NOTE:In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in the Defrost modes to improve
window clearing operation. Recirculation will be dis-
abled automatically if Defrost is selected.
Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it’s rainy or humid. In most cases,
turning the air conditioning (pressing the A/C button) on
will clear the fog. Adjust the temperature control, air
direction, and blower speed to maintain comfort.
As the temperature gets colder, it may be necessary to
direct air onto the windshield. Adjust the temperature
control and blower speed to maintain comfort. Higherblower speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by selecting the
Defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.Summer Operation
NOTE:In some cases during high temperature trailer
tow operation the Air Conditioning system performance
may be reduced. This is to help protect the engine from
overheating during the high load condition.
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Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstruc-
tions.
Vacation/Storage
Any time 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
fresh air with the blower setting in high. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
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