2016 CADILLAC CT6 air condition

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 149TRUNK OPEN This message will display along with
a symbol when the trunk is open.
Close the trunk completely.
Engine Cooling System
Messages A/C OFF DUE TO HIGH
ENGINE TEMP This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. The vehicle can continue to be
driven.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine. COOLANT LEVEL LOW ADD
COOLANT This message will display if the
coolant is low. See Engine
Coolant 0 277 .
ENGINE OVERHEATED —
IDLE ENGINE This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature. HIGH COOLANT
TEMPERATURE This message may display if the
coolant temperature is hot. See
Engine Overheating 0 280 .
Engine Oil Messages CHANGE ENGINE OIL SOON This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the oil life system. See
Engine Oil Life System 0 272 , Driver
Information Center (DIC) 0 140 ,
Engine Oil 0 270 , and Maintenance
Schedule 0 344 .
ENGINE OIL HOT, IDLE
ENGINE This message displays when the
engine oil temperature is too hot.
Stop and allow the vehicle to idle
until it cools down.
ENGINE OIL LOW — ADD OIL
On some vehicles, this message
displays when the engine oil level
may be too low. Check the oil level

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
152 Instruments and Controls This message may also be
displayed if there is a problem with
the StabiliTrak system. See Traction
Control/Electronic Stability
Control 0 217 .
FORWARD COLLISION
ALERT OFF This message displays when the
Forward Collision Alert has been
turned off.
FRONT CAMERA BLOCKED
CLEAN WINDSHIELD This message displays when the
camera is blocked. The Front
Pedestrian Braking (FPB), Forward
Collision Alert (FCA), Front
Automatic Braking (FAB), Lane
Keep Assist (LKA), and Lane
Departure Warning (LDW) features
will not operate. Cleaning the
outside of the windshield behind the
rearview mirror may correct the
issue. LANE CHANGE ALERT OFF This message indicates that the
driver has turned the Side Blind
Zone Alert (SBZA) and Lane
Change Alert (LCA) systems off.
LANE KEEPING ASSIST
UNAVAILABLE This message displays when the
Lane Keep Assist (LKA) and Lane
Departure Warning (LDW) system is
temporarily unavailable. The LKA
system does not need service.
This message could be due to the
camera being blocked. Clean the
outside of the windshield behind the
rearview mirror.
REAR AUTO BRAKE/PARK
ASSIST OFF This message displays when the
Parking Assist system has been
turned off or when there is a
temporary condition causing the
system to be disabled. REAR AUTO BRAKE AND
PARK ASSIST UNAVAILABLE This message displays when
attempting to activate the parking
and backing features of the Driver
Assistance System when they are
temporarily unavailable. The system
does not need service.
This can occur under the following
conditions:
.
The radar is not clean. Keep the
radar sensors free of mud, dirt,
snow, ice, and slush. Clean the
entire front and/or rear of the
vehicle. For cleaning
instructions, see Exterior
Care 0 333 .
.
Heavy rain or snow is interfering
with the radar object detection or
camera performance.
See Driver Assistance
Systems 0 230 .
SERVICE AUTOMATIC
COLLISION PREP
If this message displays, take the
vehicle to your dealer to repair the
system. Adaptive Cruise Control

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
154 Instruments and Controls
Ride Control System
Messages SERVICE ALL WHEEL DRIVE This message displays when there
is a problem with the AWD system.
This message could be set by a
number of issues, such as:
.
A vehicle or an AWD system
electronics problem.
.
Various vehicle electrical issues.
.
Worn out or overheated AWD
clutch plates.
.
Loss of fluids.
Some of these issues may require
service of the AWD system.
If this message appears, stop when
it is safe to do so and turn off the
ignition for 30 seconds. Restart the
vehicle and check for the message
on the DIC display. If the message
does not appear, it is not necessary
to take the vehicle to your dealer. SERVICE STABILITRAK This message displays if there is a
problem with the StabiliTrak system.
See Traction Control/Electronic
Stability Control 0 217 .
SERVICE TRACTION
CONTROL This message displays when there
is a problem with the Traction
Control System (TCS). See Traction
Control/Electronic Stability
Control 0 217 .
TRACTION CONTROL OFF This message displays when the
Traction Control System (TCS) has
been turned off. See Traction
Control/Electronic Stability
Control 0 217 .
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) has
been turned on. See Traction
Control/Electronic Stability
Control 0 217 . Airbag System Messages SERVICE AIRBAG This message displays if there is a
problem with the airbag system. See
your dealer for service.
Safety Belt Messages AUTOMATIC SEATBELT
TIGHTENING UNAVAILABLE This message displays when the
Automatic Safety Belt Tightening
System, if equipped, becomes
unavailable. This could be caused
by a temporary condition. If the
message continues to display, see
your dealer.
SERVICE AUTOMATIC
SEATBELT TIGHTENING
SYSTEM
If this message displays, take the
vehicle to your dealer to repair the
Automatic Safety Belt Tightening
System, if equipped.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 159Compensation Technology ” under
“ Infotainment System Settings ” in
the infotainment manual.
Select Off or On.
Maximum Start Up Volume
This feature sets the maximum
startup volume. If the vehicle is
started and the volume is greater
than this level, the volume is
adjusted to this level.
To set the maximum startup volume,
touch + or − to increase or
decrease.
Vehicle Select and the following may
display:
.
Climate and Air Quality
.
Collision/Detection Systems
.
Comfort and Convenience
.
Lighting
.
Power Door Locks
.
Remote Lock, Unlock, Start Climate and Air Quality
Select and the following may
display:
.
Auto Fan Speed
.
Air Quality Sensor
.
Auto Heated Seats
.
Auto Defog
.
Auto Rear Defog
.
Ionizer
Auto Fan Speed
This feature will set the auto fan
speed.
Select Low, Medium, or High.
Air Quality Sensor
This allows for selection of air
quality sensor operation at high or
low sensitivity.
Select Off, Low Sensitivity, or High
Sensitivity. Auto Heated Seats
When enabled, this feature will
automatically activate heated seats
at the level required by the interior
temperature. See Heated and
Ventilated Front Seats 0 64 .
Select Off or On.
Auto Defog
When set to On, the front defog will
automatically react to temperature
and humidity conditions that may
cause fogging.
Select Off or On.
Auto Rear Defog
If equipped, this allows the Auto
Rear Defog to be turned on or off.
This feature will automatically turn
on the rear window defogger when it
is cold outside.
Select Off or On.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Climate Controls 179
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 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
180 Climate Controls 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 ”
or “ Cluster 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 to
increase or decrease the
temperature. Press and hold to
rapidly increase or decrease the
temperature.
The driver and passenger
temperatures can also be adjusted
by touching the buttons on the touch
screen. SYNC : 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 or the touch screen fan
control, to increase or decrease the
fan speed. Press and hold the
buttons or 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

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.