2020 CADILLAC CT6 light

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
152 LIGHTING
Automatic Headlamp
System
When the exterior lamp control is set
to AUTO and it is dark enough
outside, the headlamps come on
automatically.
There 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 0153.
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
Oor 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 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
LIGHTING 153
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
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 function
may be inoperative. This vehicle is
equipped with LED lighting. For
replacement of any LED lighting
contact your dealer.
Cornering Lamps
If equipped with cornering lamps, they
automatically come on when all of the
following occur:
.
The low-beam headlamps are on.
. The turn signals are activated or
the steering wheel is at a turning
angle.
. The vehicle speed is below 40 Km/
h or (25 mph).
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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
154 LIGHTING
The brightness of the displays
automatically adjusts 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 indicator light
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.
+ON/OFF : Turns the lamp on
or off.
Reading Lamps
There are front and rear reading
lamps on the overhead console and
over the rear passenger doors. These
lamps come on automatically when
any door is opened. To manually turn the reading lamps
on or off:
Pressmornnext to each overhead
console reading lamp.
Press the lamp lenses over the rear
passenger doors.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
LIGHTING 155
Lighting Features
Entry Lighting
Some exterior lamps and most of the
interior lights turn on briefly at night,
or in areas of limited lighting when
K
is pressed on the Remote Keyless
Entry (RKE) transmitter. SeeRemote
Keyless Entry (RKE) System Operation
0 10. When the driver door is opened,
all control lights, Driver Information
Center (DIC) lights, and door pocket
lights turn on. After about 30 seconds
the exterior lamps turn off, then the
remaining interior lights dim to off.
Entry lighting can be disabled
manually by changing the ignition out
of the OFF position, or by pressing
Q
on the RKE transmitter.
This feature can be changed. See
“Vehicle Locator Lights” underVehicle
Personalization 0140. Entry Lighting with Approach
Detection
If equipped with approach detection,
the entry lighting feature will
automatically turn on when the RKE
transmitter is detected within
approximately 2 m (6 ft) of the vehicle.
If the vehicle has remained parked for
an extended period of time with no
RKE transmitter use or Keyless Access
operation, approach detection will be
disabled. To reactivate, press any
button on the RKE transmitter or
open and close all vehicle doors to
re-enable the entry lighting feature on
approach.
Approach detection will not work if:
.
The vehicle battery is low.
. The ignition is on or in ACC/
ACCESSORY.
. Entry lighting is set to Off. See
“Vehicle Locator Lights” under
Vehicle Personalization 0140. Approach detection will not work with
a single RKE transmitter if:
.
The RKE transmitter is left within
a 5 m (16 ft) range of the vehicle
for several minutes
. The RKE transmitter is left inside
the vehicle and all the doors are
closed
To help maximize transmitter battery
life, do not store the transmitter
within 5 m (16 ft) of the vehicle.
Exit Lighting
Some exterior lamps and interior
lights come on at night, or in areas
with limited lighting, when the driver
door is opened after the ignition is
turned off. The dome lamp comes on
after the ignition is turned off. The
exterior lamps and dome lamp remain
on for a set amount of time, then
automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
This feature can be changed. See
Vehicle Personalization 0140.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
156 LIGHTING
Battery Load Management
The vehicle has Electric Power
Management (EPM) that estimates the
battery's temperature and state of
charge. It then adjusts the voltage for
best performance and extended life of
the battery.
When the battery's state of charge is
low, the voltage is raised slightly to
quickly bring the charge back up.
When the state of charge is high, the
voltage is lowered slightly to prevent
overcharging. If the vehicle has a
voltmeter gauge or a voltage display
on the Driver Information Center
(DIC), you may see the voltage move
up or down. This is normal. If there is
a problem, an alert will be displayed.
The battery can be discharged at idle
if the electrical loads are very high.
This is true for all vehicles. This is
because the generator (alternator)
may not be spinning fast enough at
idle to produce all of the power
needed for very high electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rearwindow defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce the
power demands of some accessories.
Normally, these actions occur in steps
or levels, without being noticeable. In
rare cases at the highest levels of
corrective action, this action may be
noticeable to the driver. If so, a DIC
message might be displayed and it is
recommended that the driver reduce
the electrical loads as much as
possible.
Battery Power Protection
The battery saver feature is designed
to protect the vehicle's battery.
If some interior lamps are left on and
the ignition is turned off, the battery
rundown protection system
automatically turns the lamp off after
some time.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is turned
off, if the parking lamps or headlamps
have been manually left on. This
protects against draining the battery.
To restart the 10-minute timer, turn
the exterior lamp control to the off
position and then back to the parking
lamp or headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
CLIMATE CONTROLS 159
Climate Control Display
1. Driver and PassengerTemperature Display
2. Fan Control
3. Driver and Passenger Temperature Controls
4. Sync (Synchronized Temperature)
5. Recirculation
6. Driver and Passenger Air Delivery Mode Controls
7. Auto (Automatic Operation)
8. A/C (Air Conditioning) 9. On/Off
The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and Sync settings can
be controlled by touching CLIMATE
on the infotainment Home Page or the
climate button in the climate control
display application tray. A selection
can then be made on the front climate
control page displayed. See the
infotainment manual.
Climate Control Status Display
The climate control status display
appears briefly when the climate
control buttons on the center stack
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 climate
control display, 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
160 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 ”
under Instrument Cluster (Base Level)
0 110 or
Instrument Cluster (Uplevel) 0113.
OFF : Press to turn the fan on or off.
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 controls on the climate
control display.
Sync : Touch Sync on the climate
control display 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 or touch the fan
buttons on the center stack or climate
control display to increase or decrease
the fan speed. Press and hold the
buttons 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
climate control display 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 airf low 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 primarily to the
floor outlets with some air directed to
the windshield and outboard vent
outlets.
c: Clears the windows of fog or
moisture. Air is directed to the
windshield, outboard vent outlets, and
floor outlets.
0: Clears the windshield of fog or
frost more quickly. Air is directed to
the windshield. Press
0to turn on or
off. Changing the air delivery mode
also turns the defrost off.
A/C : Touch A/C on the climate
control display to turn the air
conditioning on or off. If the fan is

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
CLIMATE CONTROLS 161
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” underVehicle
Personalization 0140.
@: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, Heater,
or Defog modes.
Auto Defog :
The climate control
system has 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” underVehicle
Personalization 0140.
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 display. To turn the ionizer on or off,
see
“Climate and Air Quality” under
Vehicle Personalization 0140.
Rear Window Defogger
K:Press to turn the rear window
defogger on or off. The rear window
defogger only works when the engine
is running.
The rear window defogger can be set
to automatic operation. See “Climate
and Air Quality” underVehicle
Personalization 0140. When Auto Rear
Window Defogger 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 mirrors turn on
when the rear window defogger
button is on and help to clear fog or
frost from the surface of the mirrors.