2023 CADILLAC CT4 engine

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 23
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air
and set the fan speed to
the highest setting. See
“Climate Control Systems”
in the Index.
.If the vehicle is equipped
with a power liftgate,
disable the power liftgate
function.
See Engine Exhaust 0271.
Manual Trunk
To release the trunk, the
vehicle must be off or the shift
lever must be in P (Park).
.Press|on the driver door.
.PressXtwice quickly on the
remote key.
.Press the touch pad on the
rear of the trunk above the
license plate when all doors
are unlocked.
The trunk can be opened while
the vehicle is locked by
pressing the touch pad above
the license plate while the
remote key is within 1 m (3 ft)
of the rear of the vehicle. See
Remote Key Operation 09.
Close the trunk by pulling on
the handle. Do not use the
handle as a tie-down. Do not
press the touch pad while

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 27
Inclination and Intrusion
Sensor Disable Switch
It is recommended that the
intrusion and inclination
sensor be deactivated if pets
are left in the vehicle or the
vehicle is being transported.
With the vehicle turned off,
press
oin 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
See Radio Frequency
Statement 0494.
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 ignition is
turned on or to accessory
mode and a valid remote key 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
remote keys matched to an
immobilizer control unit in the
vehicle. Only a correctly
matched remote key will start
the vehicle. If the remote key
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.
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 (accessory
mode, on, off), and the remote
key appears to be undamaged,
try another remote key. Or,
you may try placing the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 45
If manual transmission
equipped, Seat Exit Memory
will continue if the parking
brake is released prior to
reaching the save memory
position.
Seat Exit Memory is not linked
to the driver’s remote key. The
seating position saved to
Bis
used for all drivers.
Cancel Memory Seating
Recalls
.During any memory recall:
Press a power seat control
Press SET memory button
.During Manual memory
recall:
Release 1, 2, or
Bmemory
button
.During Auto Seat Entry
Memory Recall:
Turn vehicle off
Press SET, 1, 2, or
B
memory buttons
.During Auto Seat Exit
Memory Recall: Press SET, 1, 2, or
B
memory buttons
Obstructions
If something has blocked the
seat while recalling a memory
position, the recall may stop.
Remove the obstruction and
try the recall again. If the
memory position still does not
recall, see your dealer.
Heated and
Ventilated Front
Seats
{Warning
If temperature change or
pain to the skin cannot be
felt, the seat heater may
cause burns. To reduce the
risk of burns, use care when
using the seat heater,
especially for long periods of
time. Do not place anything
on the seat that insulates
against heat, such as a (Continued)
Warning (Continued)
blanket, cushion, cover,
or similar item. This may
cause the seat heater to
overheat. An overheated
seat heater may cause a
burn or may damage
the seat.
If equipped, the buttons are
near the climate controls on
the center stack. To operate,
the engine must be running.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
46 Seats and Restraints
PressJorzto heat the
driver or passenger seat
cushion and seatback.
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
next to 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 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 and ventilated 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. 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.
To enable or disable auto
heated or ventilated seats,
select Settings > Vehicle >
Climate and Air Quality >
Auto Cooled or Auto Heated
Seats > ON or OFF.
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 and
heated steering wheel
indicator may come on during
this operation.
The heated and ventilated
seats and heated steering
wheel may cancel when the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 65
Warning (Continued)
window or a door. If you
experience breathing
problems following an airbag
deployment, you should seek
medical attention.
The vehicle has a feature that
may automatically unlock the
doors, turn on the interior
lamps and hazard warning
flashers, and shut off the fuel
system after the airbags
inflate. The feature may also
activate, without airbag
inflation, after an event that
exceeds a predetermined
threshold. After turning the
ignition off and then on again,
the fuel system will return 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
0496 and
Event Data Recorders 0497.
.Let only qualified technicians
work on the airbag system.
Improper service can mean
that an airbag system will
not work properly. See your
dealer for service.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 97
Instruments and
Controls
Controls
Steering WheelAdjustment . . . . . . . . . . . . . . . . . . 98
Heated Steering Wheel . . . 98
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Windshield Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . . 99
Compass . . . . . . . . . . . . . . . . . . . . . . 101
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Power Outlets . . . . . . . . . . . . . . . 101
Wireless Charging . . . . . . . . . 102
Warning Lights, Gauges,
and Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . 105
Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . 106
Instrument Cluster (Uplevel) . . . . . . . . . . . . . . . . . . . . . 108
Speedometer . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . 112
Trip Odometer . . . . . . . . . . . . . . . 112
Tachometer . . . . . . . . . . . . . . . . . . 113
Fuel Gauge . . . . . . . . . . . . . . . . . . . 113 Engine Coolant
Temperature Gauge
(Base Level) . . . . . . . . . . . . . . . . 114
Engine Coolant Temperature Gauge
(Uplevel) . . . . . . . . . . . . . . . . . . . . . 115
Seat Belt Reminders . . . . . . . 115
Airbag Readiness Light . . . 116
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 117
Charging System Light . . . 117
Malfunction Indicator Lamp (Check Engine
Light) . . . . . . . . . . . . . . . . . . . . . . . . . 118
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 120
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . 121
Antilock Brake System (ABS) Warning Light . . . . . 121
Performance Shifting Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . 122
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Automatic Emergency
Braking (AEB) Disabled
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 123
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 123
Traction Off Light . . . . . . . . . 123
StabiliTrak OFF Light . . . . . 124
Traction Control System (TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Engine Coolant Temperature Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control Light . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Tire Pressure Light . . . . . . . . 126
Engine Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Security Light . . . . . . . . . . . . . . . 128
High-Beam On Light . . . . . . 128
Lamps On Reminder . . . . . . 128
Cruise Control Light . . . . . . 128
Door Ajar Light . . . . . . . . . . . . . 129

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
98 Instruments and Controls
Information Displays
Driver Information Center(DIC) (Base Level) . . . . . . . . . 129
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . 132
Head-Up Display (HUD) . . . 136
Vehicle Messages
Vehicle Messages . . . . . . . . . 140
Engine Power
Messages . . . . . . . . . . . . . . . . . . . 141
Vehicle Speed Messages . . . . . . . . . . . . . . . . . . . 141
Universal Remote System
Universal RemoteSystem . . . . . . . . . . . . . . . . . . . . . . . 141
Universal Remote System Programming . . . . . . . . . . . . . . . 141
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 144
Controls
Steering Wheel
Adjustment
To adjust the steering wheel:
1. Pull the lever down.
2. Move the steering wheel up or down.
3. Pull or push the steering wheel closer or away
from you.
4. Pull the lever up to lock the steering wheel in place.
Do not adjust the steering
wheel while driving.
Heated Steering
Wheel
(: If equipped, press to turn
the heated steering wheel on
or off. An indicator light next
to the button displays when
the feature is turned on.
The steering wheel takes
about three minutes to be fully
heated.
Automatic Heated Steering
Wheel
If equipped with remote start,
the heated steering wheel will
turn on automatically during a

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 105
1. Redistributions of sourcecode must retain the
above copyright notice,
this list of conditions and
the following disclaimer.
2. Redistributions in binary form must reproduce the
above copyright notice,
this list of conditions and
the following disclaimer in
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with the distribution.
3. Neither the name of the copyright holder nor the
names of its contributors
may be used to endorse or
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from this software without
specific prior written
permission.
THIS SOFTWARE IS
PROVIDED BY THE
COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE
COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL,
EXEMPLARY, OR
CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR
BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY
WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF
ADVISED OF THE
POSSIBILITY OF 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.