2023 CADILLAC CT4 instrument panel

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 71
The operation of the airbag
system can also be affected
by changing, including
improperly repairing or
replacing, any parts of the
following:
.Airbag system, including
airbag modules, front or side
impact sensors, sensing and
diagnostic module, or airbag
wiring
.Front seats, including
stitching, seams or zippers
.Seat belts
.Steering wheel, instrument
panel, overhead console,
ceiling trim, or pillar
garnish trim
.Inner door seals, including
speakers
Your dealer and the service
manual have information about
the location of the airbag
modules and sensors, sensing
and diagnostic module, and
airbag wiring along with the
proper replacement
procedures. In addition, the vehicle has a
passenger sensing system for
the front outboard passenger
position, which includes
sensors that are part of the
passenger seat. The
passenger sensing system
may not operate properly if
the original seat trim is
replaced with non-GM covers,
upholstery, or trim; or with GM
covers, upholstery, or trim
designed for a different
vehicle. Any object, such as an
aftermarket seat heater or a
comfort-enhancing pad or
device, installed under or on
top of the seat fabric, could
also interfere with the
operation of the passenger
sensing system. This could
either prevent proper
deployment of the passenger
airbag(s) or prevent the
passenger sensing system
from properly turning off the
passenger airbag(s). See
Passenger Sensing System
0
66. If the vehicle has rollover
roof-rail airbags, see Different
Size Tires and Wheels
0433
for additional important
information.
If the vehicle must be modified
because you have a disability
and have questions about
whether the modifications will
affect the vehicle's airbag
system, or if you have
questions about whether the
airbag system will be affected
if the vehicle is modified for
any other reason, call
Customer Assistance. See
Customer Assistance Offices
0 485.Airbag System Check
The airbag system does not
need regularly scheduled
maintenance or replacement.
Make sure the airbag
readiness light is working. See
Airbag Readiness Light 0116.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
110 Instruments and Controls
to reset the timer, or to view
the lap history. A maximum of
16 laps can be stored.
Lap Timer (with PDR) :The
lap times recorded with the
PDR system will automatically
be displayed in this window.
This only happens if a track
has been selected in the PDR
system and a video recording
is started. See Performance
Data Recorder (PDR) 0192.
Friction Bubble : A four
quadrant visual display,
indicative of the four corners
of the car, with a “bubble”
showing where the most
inertia is being exerted on the
vehicle.
Launch Control : If equipped,
the Launch Control display
allows the driver to adjust the
parameters of the Launch
Control System. See Track
Events and Competitive
Driving (V-Series and V-Series
Blackwing) 0238.Audio
Browse for music, select from
favorites, or change the audio
source. Use the thumbwheel
to change the station or go to
the next or previous track.
Navigation
If there is an active route,
press the thumbwheel to
cancel or resume route
guidance, or turn the voice
prompts on or off.
Phone
View recent calls or scroll
through contacts when you
are not on an active call. Mute
the phone or switch to
handset operation if you are
on an active call.
Options
Use the thumbwheel to scroll
through items in the
Options menu. Display Themes
Press the thumbwheel to
enter the Display menu. There
are four instrument cluster
display configurations to
choose from. Sport, Tour,
Stealth, and Track (if
equipped). The style of the
cluster will change depending
on the theme selected.
Default is linked to Driver
Mode. Other display themes
can be set.
If in My Mode then those
displays plus HUD (if equipped)
can be set. My Mode is only
selectable when in Link to
Driver mode.
Stealth Mode is enabled when
the Instrument Panel
Illumination Control is set to
the minimum level. See
Instrument Panel Illumination
Control
0150.
.Sport: Displays Coolant
Temperature, Fuel Gauge,
Fuel Range, Compass, Driver
Mode Control Light,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 119
and increase vehicle
emissions. Diagnosis and
service may be required.
To help prevent damage,
reduce vehicle speed and
avoid hard accelerations and
uphill grades. If towing a
trailer, reduce the amount of
cargo being hauled as soon as
possible.
If the light continues to flash,
find a safe place to park. Turn
the vehicle off and wait at
least 10 seconds before
restarting the engine. If the
light is still flashing, follow the
previous guidelines and see
your dealer for service as
soon as possible.
If the light is on steady :A
malfunction has been
detected. Diagnosis and
service may be required.
Check the following:
.If fuel has been added to the
vehicle using the capless fuel
funnel adapter, make sure
that it has been removed. See
“Filling the Tank with a
Portable Gas Can” under
Filling the Tank 0356. The
diagnostic system can
detect if the adapter has
been left installed in the
vehicle, allowing fuel to
evaporate into the
atmosphere. A few driving
trips with the adapter
removed may turn off the
light.
.Poor fuel quality can cause
inefficient engine operation
and poor driveability, which
may go away once the
engine is warmed up. If this
occurs, change the fuel
brand. It may require at least
one full tank of the proper
fuel to turn the light off. See
Recommended Fuel (LSY
2.0L L4 Turbo Engine) 0354
or
Recommended Fuel (L3B
2.7L L4 Turbo and LF4 3.6L
V6 Twin Turbo Engines)
0 355.
If the light remains on, see
your dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an
Emissions Inspection/
Maintenance test, the test
equipment will likely connect
to the vehicle's Data Link
Connector (DLC).
The DLC is under the
instrument panel to the left of
the steering wheel.
Connecting devices that are
not used to perform an
Emissions Inspection/
Maintenance test or to service
the vehicle may affect vehicle
operation. See Add-On
Electrical Equipment 0366.
See your dealer if assistance
is needed.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
136 Instruments and Controls
displays, the engine air filter
should be replaced as soon as
possible.
Engine Hours :Displays the
total number of hours the
engine has run. The display
also shows the engine idle
hours.
Lifetime Revs : The display
shows total engine revolutions
divided by 10,000.
Brake Pad Life : If equipped,
this displays an estimate of
the remaining life of the front
and rear brake pads.
Messages are displayed based
on brake pad wear and the
state of the system. Reset the
Brake Pad Life display after
replacing the brake pads. See
Brake Pad Life System (If
Equipped) 0396.Head-Up
Display (HUD)
{Warning
If 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 information is projected
through the HUD lens on the
driver side of the instrument
panel and focused out toward
the front of the vehicle.
Caution
If 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.
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
are changed through the
instrument cluster. See
Settings 0207 and “Options”
under Instrument Cluster
(Base Level) 0106 or
Instrument Cluster (Uplevel)
0 108.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 145
Lighting
Exterior Lighting
Exterior LampControls . . . . . . . . . . . . . . . . . . . . . 145
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 147
Headlamp High/ Low-Beam Changer . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . 147
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 147
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 148
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . 149
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . 149
Cornering Lamps . . . . . . . . . . 149
Interior Lighting
Instrument Panel Illumination Control . . . . . . 150
Courtesy Lamps . . . . . . . . . . . 150
Dome Lamps . . . . . . . . . . . . . . . . 150
Reading Lamps . . . . . . . . . . . . . 150
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . 151
Exit Lighting . . . . . . . . . . . . . . . . . . 151
Battery Load Management . . . . . . . . . . . . . . . 152
Battery Power
Protection . . . . . . . . . . . . . . . . . . 153
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 153Exterior Lighting
Exterior Lamp
Controls
The exterior lamp control is on
the turn signal lever.
Turn the control to the
following positions:
O:Turns the exterior lamps
off and deactivates the AUTO
mode. Turn to
Oagain to
reactivate the AUTO mode.
In Canada, the headlamps will
automatically reactivate when
the vehicle is shifted out of
P (Park).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
146 Lighting
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 System
If 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
bcomes on in the
instrument cluster when the
IntelliBeam system is enabled. Turning On and Enabling
IntelliBeam
To enable the IntelliBeam
system, press
bon the turn
signal lever when it is dark
outside and the exterior lamp
control is in AUTO or
2.
Driving with IntelliBeam
The system only activates the
high beams when driving over
40 km/h (25 mph).
The blue high-beam on light
appears on the instrument
cluster when the high beams
are on. There is a sensor near the top
center of the windshield that
automatically controls the
system. Keep this area of the
windshield clear of debris to
allow for best system
performance.
The high-beam headlamps
remain on, under the
automatic control, until one of
the following situations
occurs:
.The system detects an
approaching vehicle's
headlamps.
.The system detects a
preceding vehicle's taillamps.
.The outside light is bright
enough that high-beam
headlamps are not required.
.The vehicle's speed drops
below 20 km/h (12 mph).
.The IntelliBeam system is
disabled by the button on
the turn signal lever. If this
happens, press
bon the
turn signal lever when the
exterior lamp control is in

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
148 Lighting
If equipped, the DRL will come
on when all of the following
conditions are met:
.The ignition is on.
.The exterior lamp control is
in AUTO.
.The light sensor determines
it is daytime.
The DRL turn off when the
headlamps are turned to
Oor
the ignition is off.
For vehicles first sold in
Canada, the DRL can only be
turned off when the vehicle is
parked.
Automatic Headlamp
System
When the exterior lamp
control is set to AUTO and it is
dark enough outside, the
headlamps come on
automatically.
The light sensor is on top of
the instrument panel or on the
windshield near the rearview
mirror. Do not cover the
sensor, otherwise the
headlamps will come on when
they are not needed.
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
turns off the headlamps.
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
0150.
When it is bright enough
outside, the headlamps will
turn off.
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.

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.