2023 CADILLAC CT4 interior lights

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 25
The indicator light, on the
instrument panel near the
windshield, indicates the
status of the system.
Off :Alarm system is
disarmed.
On Solid : Vehicle is secured
during the delay to arm the
system.
Fast Flash : Vehicle is
unsecured. A door, the hood,
or the trunk is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the remote key.
.Use the Keyless Access
system.
.With a door open, press
Qon the interior of
the door.
3. After 30 seconds the alarm system will arm, and
the indicator light will begin
to slowly flash indicating
the alarm system is
operating. Pressing
Qon
the remote key a second
time will bypass the
30-second delay and
immediately arm the alarm
system.
The vehicle alarm system will
not arm if the doors are locked
with the mechanical key.
If the driver door is opened
without first unlocking with
the remote key, the horn will chirp and the lights will flash
to indicate pre-alarm. If the
vehicle is not started, or the
door is not unlocked by
pressing
Kon the remote key
during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be
activated if a passenger door,
the trunk, or the hood is
opened without first disarming
the system. When the alarm is
activated, the turn signals
flash and the horn sounds for
about 30 seconds. The alarm
system will then re-arm to
monitor the next unauthorized
event.
Disarming the Alarm
System
To disarm the alarm system or
turn off the alarm if it has
been activated:
.PressKon the remote key.
.Unlock the vehicle using the
Keyless Access system.
.Start the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
26 Keys, Doors, and Windows
To avoid setting off the alarm
by accident:
.Lock the vehicle after all
occupants have left the
vehicle and all doors are
closed.
.Always unlock a door with
the remote key or use the
Keyless Access system.
Unlatching the driver door
with the mechanical key will
not disarm the system or turn
off the alarm.
How to Detect a Tamper
Condition
IfKis pressed on the remote
key and the horn chirps and
the lights flash three times, a
previous alarm occurred while
the system was armed.
If the alarm has been
activated, a message will
appear on the DIC.
Power Sounder,
Inclination Sensor, and
Intrusion Sensor
In addition to the standard
theft-deterrent system
features, this system may also
have a power sounder,
inclination sensor, and
intrusion sensor.
The power sounder provides
an audible alarm which is
distinct from the vehicle’s
horn. It has its own power
source, and can sound an
alarm if the vehicle’s battery is
compromised.
The inclination sensor can set
off the alarm if it senses
movement of the vehicle, such
as when a tire is removed.
Make sure the vehicle's alarm
is not armed prior to any
jacking. The intrusion sensor monitors
the vehicle interior, and can
activate the alarm if it senses
unauthorized entry into the
vehicle's interior. Do not allow
passengers or pets to remain
in the vehicle when the
intrusion sensor is activated.
Before arming the
theft-deterrent system and
activating the intrusion sensor:
.Make sure all doors and
windows are completely
closed.
.Secure any loose items such
as sun glasses.
.Make sure there are no
obstructions blocking the
sensors in the front
overhead console.

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
150 Lighting
Interior Lighting
Instrument Panel
Illumination Control
This feature adjusts the
brightness of all illuminated
controls.
D:Move the thumbwheel up
or down to brighten or dim the
lights.
The thumbwheel is functional
at night, or when the
headlamps or parking lamps
are ON.
Courtesy Lamps
The courtesy lamps come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is turned
off. See Dome Lamps 0150.
Dome Lamps
The dome lamp controls are in
the overhead console.
The dome lamps come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is
turned off. To operate, press the
following buttons:
jOFF :
Press to turn off the
dome lamps. An indicator light
on the button will turn on
when the dome lamp override
is activated. Press
jOFF
again to deactivate this
feature and the indicator light
will turn off.
+ON/OFF : Press to turn the
dome lamps on or off manually.
Reading Lamps
There are front and rear
reading lamps on the
overhead console and over
the rear passenger doors.
These lamps will come on
when any door is opened,
Kon
the remote key is pressed,
or when the vehicle is
turned off.
Front Reading Lamps
The front reading lamps are
on the overhead console.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 151
Press the lamp lenses to
manually turn on or off the
front reading lamps.
Rear Reading Lamps
The rear reading lamps are
over the rear passenger
doors.
Press the lamp lenses to
manually turn on or off the
rear reading lamps.
Lighting Features
Entry Lighting
The interior lamps turn on
when pressing
Kon the
remote key or opening any
doors, and the dome lamp
control is not in the
jOFF
position.
Some exterior lamps also turn
on when pressing
Kon the
remote key or opening any
doors. Low-Beam lamps will
only turn on briefly at night,
or in areas with limited lighting.
All lamps will gradually fade
out after about 30 seconds.
Entry lighting can be disabled
manually by closing all doors,
pressing
Qon the remote key,
or starting the vehicle. This feature can be changed.
On the infotainment home
page, select the Setting icon >
Vehicle > Vehicle Locator
Lights.
Approach Detection
If equipped, the entry lighting
feature will automatically turn
on when the remote key 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 remote key use
or keyless access operation,
approach detection will be
disabled. To reactivate, press
any button on the remote key
or open and close all vehicle
doors to re-enable the entry
lighting feature on approach.
Exit Lighting
Some exterior lamps and
interior lamps turn on when
the driver door is opened after
the vehicle is turned off.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
152 Lighting
The exterior and interior lamps
remain on for a set amount of
time, then automatically
turn off.
The interior lights turn on
when the vehicle is turned off.
The exterior lamps turn off
immediately by turning the
exterior lamp control off.
This feature can be changed.
On the infotainment home
screen, select the Settings
icon
TVehicleTExit Lighting.
Battery Load
Management
The vehicle has Electric Power
Management (EPM), which
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 thestate 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 the power
that is needed for very high
electrical loads.
A high electrical load occurs
when several of the following
are on, such as: headlamps,
high beams, fog lamps, rear
window defogger, climate
control fan at high speed,
heated seats, engine cooling
fans, 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. If a battery
message is displayed, it is
recommended that the driver
reduce the electrical loads as
much as possible. See Driver
Information Center (DIC) (Base
Level)
0129 or
Driver Information Center
(DIC) (Uplevel) 0132.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 515
HeatedMirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Steering Wheel . . . . . . . . . . . . . . 98
Ventilated Front Seats . . . . 45
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 266
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 225
High-Beam On Light . . . . . . . . . 128
High-Speed Operation . . . . . 423
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . 252
Hill Start Assist (HSA) . . . . . . 289
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . 51
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Hydraulic Clutch . . . . . . . . . . . . . 383
I
If the System Needs Service . . . . . . . . . . . . . . . . . . . . . . . . . 184
Ignition Positions . . . . . . . . . . . . . 261
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 27
Indicator Pedestrian Ahead . . . . . . . . . . 123
Vehicle Ahead . . . . . . . . . . . . . . . 123 Indicators
Warning Lights and
Gauges . . . . . . . . . . . . . . . . . . . . . . . 105
Infants and Young Children, Restraints . . . . . . . . . 74
Information Publication Ordering . . . . . 494
Infotainment Using the System . . . . . . . . . . 158
Infotainment System . . . . . . . 498
Inspection Multi-Point Vehicle . . . . . . . . . 472
Instrument Cluster . . . . 106, 108
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . 31
Introduction . . . . . . . . . . . . . . . . . 2, 155
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 447
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Operation . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . . 417
LampsCornering . . . . . . . . . . . . . . . . . . . . . 149
Courtesy . . . . . . . . . . . . . . . . . . . . . . 150
Daytime Running (DRL) . . . 147
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Exterior Controls . . . . . . . . . . . 145
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 147
Exterior Lighting Battery Saver . . . . . . . . . . . . . . 153
Flash-to-Pass . . . . . . . . . . . . . . . . 147
Front Turn Signal . . . . . . . . . . 404
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 147
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 118
On Reminder . . . . . . . . . . . . . . . . . 128
Reading . . . . . . . . . . . . . . . . . . . . . . . 150
Lane Change Alert (LCA) . . . . . . . 349
Keep Assist (LKA) . . . . . . . . . . 351
Keep Assist Light . . . . . . . . . . 122
Lap-Shoulder Belt . . . . . . . . . . . . . 54
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . 87