
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Instruments and Controls 143system monitoring the oil life,
additional maintenance is
recommended. See Maintenance
Schedule 0 344 .
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display accidentally at any time
other than when the oil has just
been changed. It cannot be reset
accurately until the next oil change.
To reset the engine oil life system,
press and hold SEL for several
seconds while the Oil Life display is
active. See Engine Oil Life
System 0 272 .
Tire Pressure : Shows the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber. See Tire Pressure
Monitor System 0 308 and Tire
Pressure Monitor Operation 0 309 .
Vehicle Odometer (Base
Cluster) : Shows the odometer. Blank Page : Allows for no
information to be displayed in the
cluster info display areas.
Head-Up Display (HUD)
{ WarningIf the HUD image is too bright or
too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield. The image is
projected through the HUD lens on
top of the instrument panel. The
information appears as an image
focused out toward the front of the
vehicle. CautionIf you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The HUD information can be
displayed in various languages in
some vehicles. The speedometer
reading and other numerical values
can be displayed in either English or
metric units.
The language selection is changed
through the radio and the units of
measurement is changed through
the instrument cluster. See Vehicle
Personalization 0 157 and “ Cluster
Options Menu ” under Instrument
Cluster (Uplevel) 0 121 or
Instrument Cluster (Base
Level) 0 118 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
170 Lighting
Lighting Exterior Lighting Exterior Lamp Controls . . . . . . . 170
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 172
Headlamp High/Low-Beam
Changer . . . . . . . . . . . . . . . . . . . . 172
Flash-to-Pass . . . . . . . . . . . . . . . . 172
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . 172
Automatic Headlamp
System . . . . . . . . . . . . . . . . . . . . . . 172
Hazard Warning Flashers . . . . . 173
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . 173
Interior Lighting Instrument Panel Illumination
Control . . . . . . . . . . . . . . . . . . . . . . 174
Courtesy Lamps . . . . . . . . . . . . . . 174
Dome Lamps . . . . . . . . . . . . . . . . . 174
Reading Lamps . . . . . . . . . . . . . . 175
Lighting Features Entry Lighting . . . . . . . . . . . . . . . . 175
Exit Lighting . . . . . . . . . . . . . . . . . . 176
Battery Power Protection . . . . . 176
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 176 Exterior Lighting Exterior Lamp Controls
The exterior lamp control is on the
turn signal lever.
Turn the control to the following
positions:
O : Turns off the exterior lamps.
The knob returns to the AUTO
position after it is released. Turn to
O again to reactivate the
AUTO mode.
In Canada, the headlamps will
automatically reactivate when the
vehicle is shifted out of P (Park).
AUTO : Automatically turns the
exterior lamps on and off,
depending on outside lighting. ; : Turns on the parking lamps
including all lamps, except the
headlamps.
2 : Turns on the headlamps
together with the parking lamps and
instrument panel lights.
IntelliBeam ®
SystemIf equipped, this system turns the
vehicle's high-beam headlamps on
and off according to surrounding
traffic conditions.
The system turns the high-beam
headlamps on when it is dark
enough and there is no other traffic
present.
This light
b comes on in the
instrument cluster when the
IntelliBeam system is enabled.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Lighting 173There is a light sensor on top of the
instrument panel. Do not cover the
sensor.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
DRL. During that delay, the
instrument cluster may not be as
bright as usual. Make sure the
instrument panel brightness control
is in the full bright position. See
Instrument Panel Illumination
Control 0 174 .
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to
O or the ignition
is off. For vehicles sold in Canada, this
control only works when the
transmission is in P (Park).
Lights On with Wipers If the windshield wipers are
activated in daylight with the engine
on, and the exterior lamp control is
in AUTO, the headlamps, parking
lamps, and other exterior lamps
come on. The transition time for the
lamps coming on varies based on
wiper speed. When the wipers are
not operating, these lamps turn off.
Move the exterior lamp control to
Oor
; to disable this feature.
Hazard Warning Flashers | : Touch this button on the center
stack to make the front and rear turn
signal lamps flash on and off. Touch
again to turn the flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
174 Lighting change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position.
If after signaling a turn or lane
change, the arrow flashes rapidly or
does not come on, a signal bulb
may be burned out.
Replace any burned out bulbs. If a
bulb is not burned out, check the
fuse. See Fuses and Circuit
Breakers 0 290 . Interior Lighting Instrument Panel
Illumination Control
The brightness of the instrument
panel lighting and steering wheel
controls can be adjusted.
D : Move the thumbwheel up or
down to brighten or dim the lights.
The brightness of the displays
automatically adjust based on
outdoor lighting. The instrument
panel illumination control will set the
lowest level to which the displays
will be automatically adjusted. Courtesy Lamps The courtesy lamps come on when
any door is opened unless the dome
lamp override is activated. To
deactivate the dome lamp override,
press
( OFF and the LED
indicator on the button will turn off.
Dome Lamps The dome lamp is in the overhead
console.
To change the dome lamp settings,
press:
( OFF : Turns the lamp off, even
when a door is open.

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
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 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
Climate Controls 189vehicle 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.
Air Vents
Adjustable air vents are in the
center and on the sides of the
instrument panel, on the rear of the
center console storage, and in the
headliner over the rear seats,
if equipped.
Move the slider knobs to change the
direction of or to close off the
airflow.