2007 CADILLAC DTS REAR DEFROST

After the vehicle is started, the display will
show the interior temperature settings and the
outside temperature.
If the AUTO position is selected on the fan or mode
control, the system will automatically control the air
conditioning compressor. The A/C compressor will
run automatically even at cool outside temperatures
in order to dehumidify the air. The A/C indicator
light will be lit when the system is operating
automatically, even at near freezing outside
temperatures. Press the A/C button on the fan
control to turn off the A/C. For improved window
clearing performance in defog or defrost modes,
the A/C compressor will run automatically.
h(AUTO RECIRCULATION):If the AUTO
position is selected on either the fan or mode
control, the system will automatically control the air
inlet to supply fresh outside air or recirculate the
interior air to cool the car faster. The indicator light
on the recirculation button will light whenever the
system switches to recirculation. You may force
outside air by pressing the recirculation button
when the light is lit. For vehicles without rear climate
controls, press the outside air button to force
outside air. The next time AUTO fan or mode is
selected, the air inlet will reset back to AUTO
operation.
Manual Operation
9(Fan):Turn the left control either to the left or
right to adjust the fan speed. Turning this control
completely counterclockwise will turn on the
automatic fan operation. Turning this control to the
“O” position will turn the climate control system off.
If the airow seems low when the fan speed is at
the highest setting, the passenger compartment air
lter may need to be replaced. SeePassenger
Compartment Air Filter on page 220.
9(Off):Turn the left control to this position to
turn the entire climate control system off.
To change the current mode, select one of the
following positions using the right control:
AUTO:Turn the control to this position to turn on
the automatic delivery mode operation.
F(Vent):Turn the control to this mode to direct
air to the instrument panel outlets.
*(Bi-Level):Turn the control to this mode to
direct approximately half of the air to the instrument
panel outlets and most of the remaining air to the
oor outlets. In automatic operation, cooler air is
directed to the upper outlets and warmer air to the
oor outlets.
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7(Floor):Turn the control to this mode to direct
most of the air to the oor outlets with some air
directed to the side window outlets and the
windshield.
The mode control can also be used to select
the oor/defog mode. In this mode, the system
will automatically use outside air. If recirculation
is selected, it will only stay on for three minutes
to reduce windshield fogging. Information on
defogging and defrosting can be found later in
this section.
:(Outside Air):Press this button to allow
outside air to come into the vehicle. It is used to
prevent the air inside the vehicle from becoming
too dry. Press this button to turn the outside
air mode on or off. When the button is pressed,
the indicator light will come on. Pressing the
recirculation button will cancel this mode.
?(Recirculation):Press this button to keep
outside air from coming in the vehicle. It is used
to prevent outside air and odors from entering the
vehicle or to help cool the air inside the vehicle
faster. Press this button to turn the recirculation
mode on or off. When the button is pressed,
an indicator light will come on.
wx(Driver’s Temperature Controls):Press
these buttons next to the fan control to manually
increase or decrease the temperature inside
your vehicle.
wx(Passenger’s Temperature Controls):
Press these buttons next to the mode control to
manually increase or decrease the temperature for
the front passenger. If the passenger’s climate
control system is off, pressing one of these buttons
will turn it on.
PASS (Passenger’s Climate Control):Press
this button to turn the passenger’s climate control
systems on or off. The temperature selected
by the front passenger will also control the rear
system air temperature unless the rear seat
passengers select their own comfort setting.
If the PASS button is pressed to turn the
passenger temperature setting off, the driver’s
temperature knob will control the temperature for
the entire vehicle.
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AUX:If your vehicle has a rear climate control
system, press this button to turn the rear climate
control fan on for automatic operation. After
the AUX button is pressed, the indicator light
will come on. Press the button again to turn the
auxiliary fan off. SeeRear Climate Control System
on page 218.
#(Air Conditioning):Press the center of the
left control to override the automatic system
and turn the air conditioning system on or off.
When in AUTO, the air conditioning compressor
will come on automatically, as necessary.
The air conditioning system removes moisture from
the air, so you may notice a small amount of water
dripping underneath your vehicle while idling or
after turning off the engine. This is normal.
Sensors
The solar sensor, located in the defrost grille,
middle of the instrument panel, monitors the solar
radiation. Do not cover the solar sensor or the
system will not work properly.
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Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity (moisture) condensing on the cool window
glass. This can be minimized if the climate control
system is used properly. There are two modes to
clear fog from your windshield. Use the oor/defog
mode to clear the windows of fog or moisture and
warm the passengers. Use the defrost mode to
remove fog or frost from the windshield more
quickly.
W(Floor/Defog):Turn the control to this mode
to direct approximately half of the air to the
oor outlets and the remaining air is directed to
the side window outlets and to the windshield.
When you select this mode, the system turns
off recirculation and runs the air conditioning
compressor unless the outside temperature is
at or below freezing. The recirculation mode
cannot be selected while in the oor/defog mode.
0(Defrost):Turn the control to this mode to
direct most of the air to the windshield and the
side window outlets. In this mode, the system will
automatically turn off recirculation and run the
air conditioning compressor, unless the outside
temperature is at or below freezing. Recirculation
cannot be selected while in the defrost mode.
Do not drive the vehicle until all the windows
are clear.
For professional vehicles, air will be allowed to
ow through the rear outlets. For quicker defrost,
press the AUX button on the front climate
control system so that the light is not lit.
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Rear Climate Control System
If your vehicle has a rear climate-control system,
the rear-seat passengers can use it to adjust
the direction of the airow, the fan speed and
the temperature for the rear-seating area.
This system also works with the main
climate-control system in your vehicle.
The control panel for this system is located on the
back of the center console.If the AUX button located on the front climate
control panel is pressed, the rear climate control
system will be turned on. The rear system will
operate in automatic mode and the temperature
settings selected for the front climate control panel
will also be selected for the rear passengers.
If the rear passenger would like to adjust the
rear climate control system, they can select
a different temperature and a different mode
or fan speed.
Whenever the rear passengers have adjusted
settings on the rear climate control system,
the AUX light is lit on the front climate control
system. The driver can turn off the auxiliary fan
by pressing the AUX button.
When the front climate control system is turned
off or in defrost mode, the rear climate control
system is turned off. The rear system will turn
back on once another front mode is selected.
For more information on how to use the climate
control system, seeDual Climate Control System
on page 210. For more information on the air
outlets, seeOutlet Adjustment on page 217.
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