engine CADILLAC CT4 2023 Owner's Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 133
DIC information is broken
down into two main zones:
Left Zone :Displays on the
instrument cluster to the left
of the speedometer.
Right Zone : Displays on the
instrument cluster to the right
of the speedometer.
SorT: Press to move left or
right between the interactive
display zones in the cluster.
Press the thumbwheel to
select.
yorz: Use the thumbwheel
to scroll up or down in a list.
Press the thumbwheel to
select.
DIC Info Tiles Selection
The following is the list of all
possible DIC Info Tiles.
Depending on the vehicle,
some may not be available.
Left Zone
Battery Voltage : Displays the
current battery voltage. The
battery voltage can fluctuate
while viewing this information
on the DIC. This is normal.
Coolant Temperature :
Displays the coolant
temperature in either degrees
Celsius (°C) or degrees
Fahrenheit (°F).
eLSD : Displays the amount of
rear differential coupling when
the Electronic Limited-Slip
Differential (eLSD) is active
and functioning during vehicle
operation. A reading of 1% is
an open differential and 100% is locked. It is normal for the
value to make small or large
changes due to driving
conditions and driver inputs.
For the V-Series Blackwing
models, the eLSD maintains
some coupling even if the
vehicle is stationary or not
accelerating. Coupling values
of 3% and up are typical. See
Limited-Slip Differential
0301.
Engine Boost : If equipped,
displays engine manifold
pressure relative to ambient
air pressure. It will display
boost pressure generated by
the turbocharging system.
Instantaneous Fuel
Economy/Economy Trend :
Displays the current fuel
economy in liters per
100 kilometers (L/100 km) or
miles per gallon (mpg). This
number reflects only the
approximate fuel economy and
changes frequently as driving
conditions change. This display
cannot be reset.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 135
Fuel Economy :Displays the
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy. Pressing the
thumbwheel opens a menu to
change the selected distance
or reset the current values.
Trip Timer/Fuel Used : This
display can be used as a timer.
To start/stop the timer, press
the thumbwheel while this
display is active and then
select the start/stop the
timer. The display shows the
amount of time that has
passed since the timer was
last reset. To reset the timer
to zero, press the thumbwheel
to access the menu while this
display is active.
Fuel Used displays the
approximate liters (L) or
gallons (gal) of fuel that have
been used since last reset.
The fuel used can be reset by pressing the thumbwheel and
selecting Reset Fuel Used in
the menu.
Current Drive Cycle :
Displays
information in relation to the
current drive cycle including
Distance Traveled, Average
Fuel Economy, and the Total
Time. They will reset after the
drive cycle is completed.
Driver Assistance :
If equipped, displays the
status of all active safety
systems.
Oil Life : Displays an estimate
of the remaining useful oil life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of
the current oil life remains.
When the remaining oil life is
low, the CHANGE ENGINE OIL
SOON message appears on
the display. The oil should be
changed as soon as possible.
See Engine Oil 0378. In
addition to the engine oil life
system monitoring the oil life, additional maintenance is
recommended. See
Maintenance Schedule
0469.
The Oil Life display must be
reset after each oil change.
It will not reset itself. Do not
reset the Oil Life display
accidentally at any time other
than when the oil has just
been changed. It cannot be
reset accurately until the next
oil change. See Engine Oil Life
System 0381.
Air Filter Life : If equipped,
shows an estimate of the
engine air filter’s remaining
useful life and the state of the
system. Engine Air Filter Life
95% means 95% of the
current air filter life remains.
Messages are displayed based
on the engine air filter life and
the state of the system. When
the REPLACE AT NEXT OIL
CHANGE message displays,
the engine air filter should be
replaced at the time of the
next oil change. When the
REPLACE NOW message

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
Instruments and Controls 137
HUD Display on theWindshield
The HUD may display some of
the following vehicle
information and vehicle
messages or alerts:
.Speed
.Audio
.Phone
.Navigation
.Performance
.Driver Assistance Features
.Vehicle Messages Some vehicle messages or
alerts displayed in the HUD
may be cleared by using the
steering wheel controls. See
Vehicle Messages
0140.
The HUD control is to the left
of the steering wheel.
To adjust the HUD image:
1. Adjust the driver seat.
2. Start the engine.
3. Use the following settings to adjust the HUD.
$:Press or lift to center the
HUD image. The HUD image
can only be adjusted up and
down, not side to side.
!: Press to select the
display view. Each press will
change the display view.
D: Lift and hold to brighten
the display. Press and hold to
dim the display. Continue to
hold to turn the display off.
The HUD image will
automatically dim and brighten
to compensate for outside
lighting. The HUD brightness
control can also be adjusted
as needed.
The HUD image can
temporarily light up depending
on the angle and position of
sunlight on the HUD display.
This is normal.
Polarized sunglasses could
make the HUD image harder
to see.
Head-Up Display (HUD)
Rotation Option
This feature allows for
adjusting the angle of the HUD
image.
Press the thumbwheel on the
steering wheel controls while
Head-Up Display Rotation is
highlighted to enter Main
View. From Main View, press

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 139
English
Track View : If equipped, this
displays digital speed,
transmission positions, Shift
Timing Light Position, gear
shift indicator,
The shift timing lights at the
top of the display will appear
with increases in engine rpm.
The rows of lights get closer
together as the shift point
gets closer. Shift the
transmission before the lights
come together in the display.
Shift immediately if the lights
are flashing. See Manual Mode
(Electronic Shifter) 0281 or
Manual Mode (Mechanical
Shifter) 0280. Temporary Overlays
Infotainment: Audio, Phone,
and Navigation are temporary
overlays linked to cluster
layouts.
Metric
English
Audio/Phone Overlay : This
displays digital speed for
Tour/ Sport, current gear for
Track, indicators from speed
view along with audio/phone
information. The current radio station, media type, and
incoming calls will be
displayed.
All HUD views may briefly
display audio information
when the driver uses the
steering wheel controls to
adjust the audio settings
appearing in the instrument
cluster.
Incoming phone calls
appearing in the instrument
cluster may also display in any
HUD view.
Metric
English

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 141
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb
Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery
Engine Power
Messages
REDUCED
ACCELERATION DRIVE
WITH CARE
This message displays when
the vehicle's propulsion power
is reduced. A reduction in
propulsion power can affect
the vehicle's ability to
accelerate. If this message is
on, but there is no observed
reduction in performance,
proceed to your destination.
Under certain conditions theperformance may be reduced
the next time the vehicle is
driven. The vehicle may be
driven while this message is
on, but maximum acceleration
and speed may be reduced.
Anytime this message stays
on, or displays repeatedly, the
vehicle should be taken to
your dealer for service as
soon as possible.
Under certain operating
conditions, propulsion will be
disabled. Try restarting after
the ignition has been off for
two minutes.
Vehicle Speed
Messages
SPEED LIMITED TO
XXX KM/H (MPH)
This message shows that the
vehicle speed has been limited
to the speed displayed. The
limited speed is a protection
for various propulsion and
vehicle systems, such as
lubrication, thermal, brakes,
suspension, Teen Driver if
equipped, or tires.
Universal Remote
System
See Radio Frequency
Statement
0494.
Universal Remote
System Programming
If equipped, these buttons are
in the overhead console.

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
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 - 5/4/22
Infotainment System 155
Introduction
Read the following pages to
become familiar with the
features.
{Warning
Taking your eyes off the
road for too long or too
often while using any
infotainment feature can
cause a crash. You or others
could be injured or killed. Do
not give extended attention
to infotainment tasks while
driving. Limit your glances at
the vehicle displays and
focus your attention on
driving. Use voice commands
whenever possible.
The infotainment system has
built-in features intended to
help avoid distraction by
disabling some features when
driving. These features may
gray out when they are
unavailable. Many infotainment features are also available
through the instrument cluster
and steering wheel controls.
Before driving:
.Become familiar with the
operation, center stack
controls, steering wheel
controls, and infotainment
display.
.Set up the audio by
presetting favorite stations,
setting the tone, and
adjusting the speakers.
.Set up phone numbers in
advance so they can be
called easily by pressing a
single control or by using a
single voice command.
See Distracted Driving 0234.
Active Noise
Cancellation (ANC)
If equipped, ANC reduces
engine noise in the vehicle’s
interior. ANC requires the
factory-installed audio system,
radio, speakers, amplifier (if
equipped), induction system,
and exhaust system to work properly. Deactivation is
required by your dealer if
related aftermarket equipment
is installed.
Overview
Infotainment System
The infotainment system is
controlled by using the
infotainment display, controls
on the center console,
steering wheel controls, and
voice recognition.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Infotainment System 181
Saving Favorites
Favorites can be added from a
number of the system’s
applications. Touch the
favorites icon to save content
as a favorite.
Renaming Navigation
Favorites1. Touch the Settings icon on the Home Page and touch
the System tab.
2. Touch Favorites to access the Manage Favorites
option.
3. Touch a saved Navigation favorite to access the edit
icon. Touch the edit icon to
rename the favorite.
4. Touch Save to store the renamed favorite.
Recents
TouchHto access a list of
recent destinations. Recenter Position Icon
Touch the Recenter Position
arrow in the middle of the map
view to reset the map to the
current location.
Last Parked Location
The Last Parked Location is
the last location the vehicle
engine was turned off. That
location is displayed in the first
row of the Recents list.
Touching the last Parked
Location shows the Address
Details view to either save the
address or drive to it. The Last
Parked Location can be
deleted by entering the Edit
display. Once the Last Parked
Location is deleted, it no
longer appears in the Recents
list, unless the vehicle is
started at that location again.Show POI Icons
To see the POI categories,
touch Options, then touch
Show on Map. Up to eight
categories of icons can be
selected.Smart POI Icons on Map (If
Equipped)
The smart POI icons such as
fuel stations and parking may
appear based on time,
location, driver search
behavior, driving conditions,
and vehicle conditions.
Touch a smart POI icon to
open the corresponding
details:
.Left side: Name and address
of the POI.
.Right side:E+ ETE
(Estimated Time Enroute.)
Smart Fuel Station Icons
Fuel station prices are shown
if available for nearby stations
when the vehicle is low on fuel.