2016 CADILLAC CT6 climate control

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Climate Controls 181turned off or the outside
temperature falls below freezing, the
air conditioner will not run.
Press AUTO to return to automatic
operation and the air conditioner
runs as needed.
Automatic Air Recirculation :
When the AUTO indicator light is
on, the air is automatically
recirculated as needed to help
quickly cool the inside of the
vehicle.
The climate control system may
have a sensor to detect air pollution.
When using automatic air
recirculation, the air quality control
system may operate. To adjust the
sensitivity of the air quality sensor,
see “ Climate and Air Quality ” under
Vehicle Personalization 0 157 .
@ : Press to alternate between
recirculating air inside the vehicle or
pulling in outside air. The indicator
light on the button is lit when
recirculation mode is active. This
helps to quickly cool the air inside
the vehicle or reduce the outside air
and odors that might enter. Pressing this button cancels
automatic recirculation. Press AUTO
to return to automatic operation;
recirculation runs automatically as
needed.
Manual recirculation mode is not
available when in Defrost or Defog
modes.
Auto Defog : The climate control
system may have a sensor to
automatically detect high humidity
inside the vehicle. When high
humidity is detected, the climate
control system may adjust to
outside air supply and turn on the
air conditioner. If the climate control
system does not detect possible
window fogging, it returns to normal
operation. To turn Auto Defog off or
on, see “ Climate and Air Quality ”
under Vehicle
Personalization 0 157 .
Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants such as pollen, odors,
and dust. If the climate control
system is on and the ionizer is
enabled, the ionizer status indicator will be lit on the climate control
touch screen. To turn the ionizer on
or off, see “ Climate and Air Quality ”
under Vehicle
Personalization 0 157 .
Rear Window Defogger
K : Press to turn the rear window
defogger on or off.
The rear window defogger can be
set to automatic operation. See
“ Climate and Air Quality ” under
Vehicle Personalization 0 157 .
When Auto Rear Defog is selected,
the rear window defogger turns on
automatically when the interior
temperature is cold and the outside
temperature is about 4 °C (40 °F)
and below.
The upper grid lines on the rear
window are antenna lines and are
not intended to heat when the
defogger is activated.
The heated outside rearview mirrors
turn on when the rear window
defogger button is on and help to
clear fog or frost from the surface of
the mirrors.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
182 Climate Controls CautionDo not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything
else that is sharp. This may
damage the rear window
defogger grid and affect the
radio's ability to pick up stations
clearly. The repairs would not be
covered by the vehicle warranty.
Driver and Passenger Heated and
Ventilated Seats (If Equipped) :
Press
I or
+ to heat the driver or
passenger seatback only.
Press
J or
z to heat the driver or
passenger seat cushion and
seatback.
Press
C or
{ to ventilate the driver
or passenger seat. See Heated and
Ventilated Front Seats 0 64 .
Remote Start Climate Control
Operation : If equipped with the
remote start feature, the climate
control system may run when the vehicle is started remotely. The
system uses the driver ’ s previous
settings to heat or cool the inside of
the vehicle. The rear defog may
come on during remote start based
on cold ambient conditions. The
rear defog indicator light does not
come on during a remote start.
If equipped with heated or ventilated
seats, they may come on during a
remote start. See Remote Vehicle
Start 0 36 and Heated and
Ventilated Front Seats 0 64 .
Sensor The solar sensor, on top of the
instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
If the sensor is covered, the
automatic climate control system
may not work properly.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Climate Controls 183Rear Climate Control System The rear climate control system is on the rear of the center console. The
settings can be adjusted with the rear climate control buttons and the touch
screen.
Rear Climate Control Buttons
1. Rear Driver Side and
Passenger Side Seat
Temperature Controls
2.
O (On/Off) 3. Air Delivery Mode Control
4. AUTO (Automatic Operation)
5. Fan Control Rear Climate Touch Screen
Controls
1. Outside Temperature Display
2. Rear Control Lockout
3. ON/OFF
4. Climate Control Selection
(Application Tray Button)
5. SYNC (Synchronized
Temperatures)
6. Rear AUTO (Automatic
Operation)
7. Rear Driver Side and
Passenger Side Climate
Temperature Controls
8. Rear Fan Control

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
184 Climate Controls 9. Air Delivery Mode Control
Rear : Touch Rear on the Home
Page on the infotainment system
display to open the rear climate
control screen. The rear climate
control settings can now be
adjusted from the front
passenger area.
O : Press
O or touch ON/OFF on
the touch screen to turn the rear
climate control on or off.
SYNC : Touch SYNC on the touch
screen to match the rear climate
control temperature to the front
climate control driver temperature.
The SYNC button will be lit.
Rear Control Lockout : Touch to
lock or unlock control of the rear
climate control system from the rear
seat passengers. When locked, the
rear climate control can only be
adjusted from the front seat. Automatic Operation
AUTO : Press to turn on or off. The
air delivery is controlled
automatically. The AUTO indicator
appears on the display. If the air
delivery mode is manually adjusted,
this cancels full automatic operation.
Manual Operation
9 : Press or press and hold the
rear fan button up or down to
increase or decrease the rear
climate airflow. The rear climate
airflow can also be adjusted by
touching the fan controls on the
front climate touch screen.
Temperature Controls : Press or
press and hold the rear temperature
control buttons up or down to adjust
the rear passenger temperatures.
The rear passenger temperatures
can also be adjusted by touching +
for warmer air or − for cooler air on
the front climate touch screen. Air Delivery Mode Control : Press
or press and hold the button up or
down to select the desired air
delivery mode. Touch the right and
left arrows at the bottom of the
touchscreen to change the direction
of the airflow in the rear
seating area.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Climate Controls 185
Automatic Climate Control System (Dual Zone) The climate control buttons and the touch screen are used to adjust the
heating, cooling, and ventilation.
Climate Control Buttons
1. Driver and Passenger
Temperature Controls
2. Fan Control
3. Driver and Passenger Heated
and Ventilated Seats (If
Equipped) 4. Rear Window Defogger
5. Defrost
6. OFF (Fan)
7. Recirculation
8. AUTO (Automatic Operation) Climate Touch Screen Controls
1. Outside Temperature Display
2. Driver and Passenger
Temperature Controls
3. Fan Control
4. A/C (Air Conditioning)
5. Climate Control Selection
(Application Tray Button)
6. SYNC (Synchronized
Temperature)
7. Driver and Passenger Air
Delivery Mode Controls
8. Defog

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
186 Climate Controls 9. Ionizer Status Indicator (If
Equipped)
Climate Control Touch Screen
The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and SYNC settings
can be controlled by touching
CLIMATE on the infotainment home
screen or the climate button in the
touch screen application tray.
A selection can then be made on
the front climate control page
displayed. See the infotainment
manual.
Climate Control Status Screen The climate control status screen
appears briefly when the climate
control buttons on the faceplate are
adjusted.
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to
the desired temperature.
When the indicator light is on or
AUTO is displayed on the touch
screen, the system is in full
automatic operation. If the air
delivery mode or fan setting is
manually adjusted, the auto
indicator turns off and the display
will show the selected settings. Auto
operation can be turned off
individually for climate settings.
For automatic operation:
1. Press AUTO.
2. Set the temperature. Allow the
system time to stabilize. Then
adjust the temperature as
needed for best comfort. To improve fuel efficiency and to
cool the vehicle faster, recirculation
may be automatically selected in
warm weather. The recirculation
light will not come on in AUTO
mode. Press
@ to select
recirculation; press it again to select
outside air.
English units can be changed to
metric units through the instrument
cluster. See “ Cluster Options Menu ”
under Instrument Cluster (Uplevel)
0 121 or Instrument Cluster (Base
Level) 0 118 .
OFF : Press to turn the fan on or
off. The temperature control and air
delivery mode can still be adjusted.
Q /
R : The temperature can be
adjusted separately for the driver
and the passenger. Press up or
down to increase or decrease the
temperature. Press and hold up or
down to rapidly increase or
decrease the temperature.
The driver and passenger
temperatures can also be adjusted
by touching the buttons on the touch
screen.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Climate Controls 187SYNC : Touch SYNC on the touch
screen to link all climate zone
settings to the driver settings. When
all climate zone settings are linked,
the SYNC indicator will be lit. Adjust
the driver side temperature control
to change the linked temperature.
When the front or rear passenger
settings are adjusted, the SYNC
indicator will turn off.
Manual Operation
Q 9 R : Press the fan control
buttons up or down or touch the
touch screen fan control, to increase
or decrease the fan speed. Press
and hold the buttons up or down or
touch the touch screen control to
adjust speed more quickly. The fan
speed setting displays. Pressing
either button cancels automatic fan
control and the fan can be
controlled manually. Press AUTO to
return to automatic operation.
Driver and Passenger Air Delivery
Mode Controls : When the climate
information is displayed, touch the
desired air delivery mode on the
touch screen to change the direction
of the airflow. The selected air delivery mode button is lit. Touching
any of the air delivery buttons
cancels automatic air delivery
control and the direction of the
airflow can be controlled manually.
Press AUTO to return to automatic
operation.
To change the current mode, select
one of the following:
Y : Air is directed to the instrument
panel outlets.
\ : Air is divided between the
instrument panel outlets and the
floor outlets.
[ : Air is directed to the floor
outlets.
- : Clears the windows of fog or
moisture. Air is directed to the
windshield and floor outlets.
0 : Clears the windshield of fog or
frost more quickly. Air is directed to
the windshield. Press
0 to turn on
or off. Changing the air delivery
mode also turns the defrost off.
A/C : Touch A/C on the touch
screen to turn the automatic air
conditioning on or off. If the fan is turned off or the outside
temperature falls below freezing, the
air conditioner will not run.
Press AUTO to return to automatic
operation and the air conditioner
runs as needed.
Automatic Air Recirculation :
When the AUTO indicator light is
on, the air is automatically
recirculated as needed to help
quickly cool the inside of the
vehicle.
The climate control system may
have a sensor to detect air pollution.
When using automatic air
recirculation, the air quality control
system may operate. To adjust the
sensitivity of the air quality sensor,
see “ Climate and Air Quality ” under
Vehicle Personalization 0 157 .
@ : Press to alternate between
recirculating air inside the vehicle or
pulling in outside air. The indicator
light on the button is lit when
recirculation mode is active. This
helps to quickly cool the air inside
the vehicle or reduce the outside air
and odors that might enter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
188 Climate Controls Pressing this button cancels
automatic recirculation. Press AUTO
to return to automatic operation;
recirculation runs automatically as
needed.
Manual recirculation mode is not
available when in Defrost or Defog
modes.
Auto Defog : The climate control
system may have a sensor to
automatically detect high humidity
inside the vehicle. When high
humidity is detected, the climate
control system may adjust to
outside air supply and turn on the
air conditioner. If the climate control
system does not detect possible
window fogging, it returns to normal
operation. To turn Auto Defog off or
on, see “ Climate and Air Quality ”
under Vehicle
Personalization 0 157 .
Ionizer : If equipped with an ionizer,
this feature helps to clean the air
inside the vehicle and remove
contaminants; such as pollen,
odors, and dust. If the climate
control system is on and the ionizer
is enabled, the ionizer status indicator will be lit on the climate
control touch screen. To turn the
ionizer on or off, see “ Climate and
Air Quality ” under Vehicle
Personalization 0 157 .
Rear Window Defogger
K : Press to turn the rear window
defogger on or off.
The rear window defogger can be
set to automatic operation. See
“ Climate and Air Quality ” under
Vehicle Personalization 0 157 .
When Auto Rear Defog is selected,
the rear window defogger turns on
automatically when the interior
temperature is cold and the outside
temperature is about 4 °C (40 °F)
and below.
The upper grid lines on the rear
window are antenna lines and are
not intended to heat when the
defogger is activated.
The heated outside rearview mirrors
turn on when the rear window
defogger button is on and help to
clear fog or frost from the surface of
the mirrors. CautionDo not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything
else that is sharp. This may
damage the rear window
defogger grid and affect the
radio's ability to pick up stations
clearly. The repairs would not be
covered by the vehicle warranty.
Driver and Passenger Heated and
Ventilated Seats (If Equipped) :
Press
I or
+ to heat the driver or
passenger seatback only.
Press
J or
z to heat the driver or
passenger seat cushion and
seatback.
Press
C or
{ to ventilate the driver
or passenger seat. See Heated and
Ventilated Front Seats 0 64 .
Remote Start Climate Control
Operation : If equipped with the
remote start feature, the climate
control system may run when the