2020 CADILLAC CT6 engine

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 23
To open a rear door when the safety
lock is on:1. Unlock the door by activating the inside handle, by pressing the
power door lock switch, or by
using the Remote Keyless
Entry (RKE) transmitter.
2. Open the door from the outside.
When the safety lock is enabled,
adults and older children will not be
able to open the rear door from the
inside. Cancel the safety locks to
enable the doors to open from the
inside.
To cancel the safety lock:
1. Unlock the door and open it from the outside.
2. Move the lever up to unlock. Do the same for the other door.Doors
Trunk
{Warning
Exhaust gases can enter the vehicle
if it is driven with the liftgate or
trunk/hatch open, or with any
objects that pass through the seal
between the body and the trunk/
hatch or liftgate. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness and
even death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
. Close all of the windows.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to a setting that
brings in only outside air and
(Continued)
Warning (Continued)
set the fan speed to the
highest setting. See “Climate
Control Systems” in the Index.
See Engine Exhaust 0192.
To open the trunk, the vehicle must
be off or the transmission must be in
P (Park).
Manual Trunk
. Press|on the driver door.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
32 KEYS, DOORS, AND WINDOWS
With the vehicle turned off, presso
in the front overhead console. The
indicator light will come on
momentarily, indicating that these
sensors have been disabled for the
next alarm system arming cycle.
Immobilizer
SeeRadio Frequency Statement 0386.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the vehicle is started
or the ignition is in ACC/ACCESSORY
and a valid transmitter is present in
the vehicle.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched RKE
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, on, off), and
the RKE transmitter appears to be undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console. See
Remote Keyless Entry (RKE) System
Operation
010.
If the ignition modes will not change
with the other transmitter or with the
transmitter in the transmitter pocket,
your vehicle needs service. If the
ignition does change modes, the first
transmitter may be faulty. See your
dealer.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see “Programming
Transmitters to the Vehicle ”under
Remote Keyless Entry (RKE) System
Operation 010.
Do not leave the transmitter or device
that disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
KEYS, DOORS, AND WINDOWS 39
If equipped, pull the window switch
up fully and quickly release to express
close the window.
Briefly press or pull the window
switch in the same direction to stop
that window’s express movement.
Window Automatic Reversal
System
The express-close feature will reverse
window movement if it comes in
contact with an object. Extreme cold
or ice could cause the window to
auto-reverse. The window will operate
normally after the object or condition
is removed.
Automatic Reversal System
Override
{Warning
If automatic reversal system
override is active, the window will
not reverse automatically. You or
others could be injured and the
window could be damaged. Before
using automatic reversal system(Continued)
Warning (Continued)
override, make sure that all people
and obstructions are clear of the
window path.
When the engine is on, override the
automatic reversal system by pulling
and holding the window switch if
conditions prevent it from closing.
Programming the Power
Windows
Programming may be necessary if the
vehicle battery has been disconnected
or discharged. If the window is unable
to express-up, program each
express-close window: 1. Close all doors.
2. Turn the ignition on or to ACC/ ACCESSORY.
3. Partially open the window to be programmed. Then close it and
continue to pull the switch
briefly after the window has fully
closed. 4. Open the window and continue
to press the switch briefly after
the window has fully opened.
Remote Window Operation
If equipped, this feature allows all the
windows to be opened remotely.
If enabled in vehicle personalization,
press and hold
Kon the RKE
transmitter. See Vehicle Personalization
0 140.
Sun Visors

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
52 SEATS AND RESTRAINTS
If equipped, the buttons are near the
climate controls on the center stack.
To operate, the engine must be
running.
Press
Jorzto heat the driver or
passenger seat cushion and seatback.
Press
Ior+to heat the driver or
passenger seatback only.
Press
Cor{to ventilate the driver
or passenger seat.
Press the button once for the highest
setting. With each press of the button,
the seat will change to the next lower
setting, and then to the off setting.
The indicator lights above the buttons indicate three for the highest setting
and one for the lowest. If the front
heated seats are on high, the level
may automatically be lowered after
approximately 30 minutes.
When this feature is off, the heated
and ventilated seat symbols on the
buttons are white. A ventilated seat
has a fan that pulls or pushes air
through the seat. The air is not
cooled. When a heated seat is turned
on, the symbol turns red. When a
ventilated seat is turned on, the
symbol turns blue.
The passenger seat may take longer to
heat up.
Auto Heated and Ventilated Seats
If the vehicle is equipped with auto
heated or ventilated seats, and the
engine is running, this feature will
automatically activate the heated or
ventilated seats at the level required
by the vehicle's interior temperature.
The active high, medium, low, or off
heated or ventilated seat level will be
indicated by the manual heated and
ventilated seat buttons on the center
stack. Use the manual heated andventilated seat buttons on the center
stack to turn auto heated or ventilated
seats off. If the passenger seat is
unoccupied, the auto heated or
ventilated seats feature will not
activate that seat. The auto heated
and ventilated seats feature can be
programmed to always be enabled
when the vehicle is on. If equipped
with a heated steering wheel, the auto
heated steering wheel activation will
follow the heated seat auto activation
and the heated wheel indicator will
follow the state of the steering
wheel heat.
See
Vehicle Personalization 0140.
Remote Start Heated and Ventilated
Seats
If equipped, the heated seats will turn
on automatically during a remote
start if it is cold outside and the
ventilated seats will turn on
automatically if it is hot outside.
If equipped, the heated steering wheel
will turn on automatically during a
remote start if it is cold outside. The
heated and ventilated seat indicators

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
56 SEATS AND RESTRAINTS
4. Press and hold the controlupward (2) to raise or
downward (4) to lower the height
of the support.
To adjust upper back support,
if equipped: 1. Toggle the center selection control (1) to view adjustable
seat options on the display.
2. Select upper back support.
3. Press and hold the control forward (5) to increase or
rearward (3) to decrease support.
Heated and Ventilated
Rear Seats
{Warning
If temperature change or pain to
the skin cannot be felt, the seat
heater may cause burns. See the
Warning under Heated and
Ventilated Front Seats 051.
Platinum Seat
If equipped, the buttons are on the
rear passenger doors. To operate, the
engine must be running.
Press
Cor{to ventilate the left or
right outboard seat.
Press
MorL, if equipped, to heat the
left or right outboard seat
cushion only.
Press
Ior+, if equipped, to heat
the left or right outboard
seatback only. Press
Jorz, if equipped, to heat the
left or right outboard seat cushion and
seatback.
On vehicles without rear climate
controls, an indicator light on the
button will turn on when the heated
or ventilated seat is on. On vehicles
with rear climate controls, an
indicator on the climate control
display appears when this feature
is on.
On vehicles without rear climate
controls, press the button again to
turn this feature off. The light on the
button will turn off. On vehicles with
rear climate controls, this feature
turns on the heated seat at the
highest setting. With each press of the
button, the heated seat changes to the
next lower setting, and then the off
setting. Three lights indicate the
highest setting, and one light
indicates the lowest. If the heated
seats are on high, the level may
automatically be lowered after
approximately 30 minutes.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
SEATS AND RESTRAINTS 71
to normal operation; the doors can be
locked, the interior lamps can be
turned off, and the hazard warning
flashers can be turned off using the
controls for those features. If any of
these systems are damaged in the
crash they may not operate as normal.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle,
such as the fuel system, brake and
steering systems, etc. Even if the
vehicle appears to be drivable after
a moderate crash, there may be
concealed damage that could make
it difficult to safely operate the
vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation. Additional windshield breakage may
also occur from the front outboard
passenger airbag.
.
Airbags are designed to inflate
only once. After an airbag inflates,
you will need some new parts for
the airbag system. If you do not
get them, the airbag system will
not be there to help protect you in
another crash. A new system will
include airbag modules and
possibly other parts. The service
manual for the vehicle covers the
need to replace other parts.
. The vehicle has a crash sensing
and diagnostic module which
records information after a crash.
See Vehicle Data Recording and
Privacy 0387 and
Event Data Recorders 0388.
. Let only qualified technicians
work on the airbag systems.
Improper service can mean that
an airbag system will not work
properly. See your dealer for
service.
Passenger Sensing System
The vehicle has a passenger sensing
system for the front outboard
passenger position. The passenger
airbag status indicator will light on
the overhead console when the vehicle
is started.
United States
Canada
The words ON and OFF, or the
symbols for on and off, will be visible
during the system check. When the
system check is complete, either the

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
102 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . 103
Steering Wheel Controls . . . . . . . . . 103
Heated Steering Wheel . . . . . . . . . . 103
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Windshield Wiper/Washer . . . . . . . 104
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Power Outlets . . . . . . . . . . . . . . . . . . . . . 106
Wireless Charging . . . . . . . . . . . . . . . . 107
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . 109
Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Instrument Cluster (Uplevel) . . . . 113
Speedometer . . . . . . . . . . . . . . . . . . . . . . 115
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 116
Trip Odometer . . . . . . . . . . . . . . . . . . . . 116
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 116
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 116 Boost Gauge (Performance
Configuration Only) . . . . . . . . . . . . 117
Engine Oil Pressure Gauge (Base Level Cluster Only) . . . . . . . . . . . . . 117
Engine Oil Temperature Gauge
(Performance
Configuration Only) . . . . . . . . . . . . 118
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Voltmeter Gauge (Base Level Cluster Only) . . . . . . . . . . . . . . . . . . . . 120
Seat Belt Reminders . . . . . . . . . . . . . . 120
Airbag Readiness Light . . . . . . . . . . 121
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 121
Charging System Light . . . . . . . . . . . 122
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 123
Brake System Warning Light . . . . 125
Electric Parking Brake Light . . . . . 125
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 126
Gear Shifting Light . . . . . . . . . . . . . . . 126
Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Lane Keep Assist (LKA) Light . . . 127
Vehicle Ahead Indicator . . . . . . . . . 127 Pedestrian Ahead Indicator . . . . . . 127
Traction Off Light . . . . . . . . . . . . . . . . 128
StabiliTrak OFF Light . . . . . . . . . . . . 128
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . . . . 128
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . 129
Driver Mode Control Light . . . . . . . 129
Tire Pressure Light . . . . . . . . . . . . . . . 129
Engine Oil Pressure Light . . . . . . . . 130
Low Fuel Warning Light . . . . . . . . . 130
Security Light . . . . . . . . . . . . . . . . . . . . . 131
High-Beam On Light . . . . . . . . . . . . . 131
Lamps On Reminder . . . . . . . . . . . . . 131
Cruise Control Light . . . . . . . . . . . . . . 131
Door Ajar Light . . . . . . . . . . . . . . . . . . . 132
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . 132
Head-Up Display (HUD) . . . . . . . . . 135
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 139
Engine Power Messages . . . . . . . . . . 139
Vehicle Speed Messages . . . . . . . . . 139
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 140

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
INSTRUMENTS AND CONTROLS 109
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Freescale-WCT library
Copyright (c) 2012-2014 Freescale
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2. Redistributions in binary form must reproduce the above
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THIS SOFTWARE IS PROVIDED BY
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SUCH DAMAGE.Warning Lights, Gauges,
and Indicators
Warning lights and gauges can signal
that something is wrong before it
becomes serious enough to cause an
expensive repair or replacement.
Paying attention to the warning lights
and gauges could prevent injury.
Some warning lights come on briefly
when the engine is started to indicate
they are working. When one of the
warning lights comes on and stays on
while driving, or when one of the
gauges shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.