2023 CADILLAC CT4 light

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 105
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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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 107
.Info App. This is where the
selected Driver Information
Center (DIC) displays can be
viewed. See Driver
Information Center (DIC)
(Base Level)0129 or
Driver Information Center
(DIC) (Uplevel) 0132.
.Audio
.Navigation
.Phone
.Options
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.
Head-up Display (HUD) :
If equipped, this feature allows
for adjusting the angle of the
HUD image and changing or
turning off the Speed
Limit Sign.
HUD Rotation (Uplevel): Press
the thumbwheel while Adjust
Rotation is highlighted to
enter Adjust Mode. Scroll to
adjust the angle of the HUD
display. Press the thumbwheel
to confirm and save the
setting. This feature may only
be available in P (Park).Speed Sign: If equipped, press
the thumbwheel while Speed
Sign is highlighted to turn it on
or off.
Units :
Choose US or metric
units by pressing the
thumbwheel while the desired
item is highlighted.
Info Page Options : Press the
thumbwheel to select the
items to be displayed in the
Info app. See Driver
Information Center (DIC) (Base
Level) 0129 or
Driver Information Center
(DIC) (Uplevel) 0132.
Display : Press the
thumbwheel to enter the
Display menu. Select to turn
on or off the speedometer,
time, fuel range, or,
if equipped, compass or
speed sign.

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 111
Odometer, Speed,
Tachometer, Electronic
Transmission Range, Current
Gear, Speed Limit, Info Area,
and Interaction Area, and
Cruise Control (if engaged).
.Tour: Displays Fuel Gauge,
Fuel Range, Compass, Driver
Mode Control Light,
Odometer, Speed,
Tachometer, Electronic
Transmission Range, Current
Gear, Peak Performance,
Speed Limit, Info Area, and
Interaction Area, and Cruise
Control (if engaged).
.Stealth: Displays Fuel Gauge,
Digital Speed, and
Tachometer.
.Track: If equipped, displays
Coolant Temperature, Fuel
Gauge, Driver Mode Control
Light, Speed, Tachometer,
Electronic Transmission
Range, Current Gear, Info
Area, and Interactive Area.Preset info tiles shown on
each layout:
Sport :
Time and
Temperature, Oil
Temperature, Tire Status, Oil
Pressure
Track : Oil Pressure,
Transmission Fluid
Temperature, Tire Status, Oil
Temperature
Tour : Time and Temperature
Stealth : None
Speed Warning
The Speed Warning display
allows the driver to set a
speed that they do not want
to exceed. To set the Speed
Warning, press the
thumbwheel when Speed
Warning is displayed, or press
the thumbwheel on the main
view to set the speed value.
Scroll to adjust the value.
Press the thumbwheel to set
the speed. Once the speed is
set, this feature can be turned
off by pressing the
thumbwheel while viewing this page. If the selected speed
limit is exceeded, a pop-up
warning is displayed with a
chime.
Speed Sign
Shows sign information, which
comes from a roadway
database in the onboard
navigation, if equipped.
Units
Press the thumbwheel while
Units is displayed to enter the
Units menu. Choose US or
metric units by pressing the
thumbwheel while the desired
item is highlighted. A selected
mark will be displayed next to
the selected item.
Tachometer
If equipped, the Tachometer
allows the driver to choose
between the traditional
tachometer (linear gauge) or
the numerical tachometer
(shift lights with numerical
Tachometer RPM) when Track
theme is selected.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
112 Instruments and Controls
Tire Pressure
If the tire pressure readings
need to be recalibrated at any
time, this option initiates the
Tire Pressure Relearn
function. The selection of
relearn opens a pop-up when
the thumbwheel is pressed for
five seconds.
Head-Up Display (HUD)
Rotation
Press the thumbwheel while
Adjust Rotation is highlighted
to enter Adjust Mode. Scroll to
adjust the angle of the HUD
display. Press the thumbwheel
to confirm and save the
setting. See Head-Up Display
(HUD)0136.
Traction & Stability
If equipped, displays the
status of the Traction (TSC)
and Stability (ESC) control
systems. To turn the Traction
Control System (TCS) on or
off, choose Traction.
If equipped, to turn
StabiliTrak/Electronic Stability Control (ESC) on or off,
choose Stability. See Traction
Control/Electronic Stability
Control
0290.
Software Licenses
Press the thumbwheel while
Software Licenses is
highlighted to display open
source software information.
Reset To Defaults
Allows the driver to reset to
default settings.
Simplify
Press the thumbwheel to
enter the Simplify menu.
Simplify Mode allows certain
features of the instrument
cluster to be hidden. These
features include info tiles and
interactive areas.
Using the thumbwheel
SorT,
except to acknowledge an
alert, will exit Simplify Mode. The selected features will stay
hidden even after starting and
restarting the vehicle, unless
Simplify Mode is manually
canceled.
Speedometer
The speedometer shows the
vehicle speed in either
kilometers per hour (km/h) or
miles per hour (mph).
Odometer
The odometer shows how far
the vehicle has been driven, in
either kilometers or miles.
Trip Odometer
The trip odometer shows how
far the vehicle has been driven
since the trip odometer was
last reset.
The trip odometer is accessed
and reset through the Driver
Information Center (DIC). 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
Instruments and Controls 113
Tachometer
The tachometer displays the
engine speed in revolutions
per minute (rpm).
For vehicles with the Stop/
Start system, when the
ignition is on, the tachometer
indicates the vehicle status.
When pointing to AUTO STOP
(Base Level) or the cluster
displays AUTO STOP text
(Uplevel), the engine is off but
the vehicle is on and can move.
The engine could auto start at
any time. When the indicator
points to OFF, the vehicle
is off.
The tachometer may vary by
several hundred rpm, during
Auto Stop mode, when the
engine is shutting off and
restarting.
Uplevel
The redline of the tachometer
adjusts dynamically based on
engine temperature. The
redline displays a lowerindication when the vehicles
odometer value is less than
805 kilometers (500 miles).
If equipped, the shift
indicators are displayed on
instrument cluster and
Head-Up Display (HUD). The
shift indicators are only
operational when the
automatic transmission is in
Manual mode, or the vehicle
has a manual transmission.
See Manual Mode (Electronic
Shifter)
0281 or
Manual Mode (Mechanical
Shifter) 0280. When the
vehicle engine is less than
70°C (158°F) and the vehicle
odometer value is less than
805 kilometers (500 miles) the
shift indications are not
displayed.
A strong visual indicator is
displayed as the vehicle
approaches the red line. Tour
and Sport themes feature
shift rings while the Track theme features shift lights
accompanied by a numerical
tachometer display.
Fuel Gauge
Base Level
Metric Uplevel Sport Mode
Shown, Other Modes Similar

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
114 Instruments and Controls
English Uplevel Sport Mode
Shown, Other Modes Similar
When the ignition is on, the
fuel gauge indicates the
approximate amount of fuel
left in the tank.
There is an arrow near the
fuel gauge pointing to the side
of the vehicle the fuel door
is on.
When the indicator nears
empty, the low fuel light
comes on. There still is a little
fuel left, but the vehicle should
be refueled soon.
The fuel gauge may:
.Take a little more, or less
fuel to fill up than it
indicates. For example, the
gauge may have indicated
the tank is half full, but it actually takes a little more,
or less than half the tank's
capacity to fill the tank.
.Move a little while turning a
corner, speeding up,
or braking.
.Take a few seconds to
stabilize after the ignition is
turned on and goes back to
empty when the ignition is
turned off.
These are normal conditions,
none of which indicate a
problem with the fuel gauge.
Fuel Range
The uplevel instrument cluster
has a estimated fuel range
located at the bottom center
of the display. The fuel range
is displayed with the
approximate distance the
vehicle can be driven without
refueling. The fuel range
estimate is based on an
average of the vehicle’s fuel
economy over recent driving
history and the amount of fuel
remaining in the fuel tank. When the estimated fuel
range is low, the range shows
LOW and a message may also
display in the Driver
Information Center (DIC).
Engine Coolant
Temperature Gauge
(Base Level)
Metric

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 115
English
This gauge measures the
temperature of the vehicle's
engine.
While driving under normal
operating conditions, if the red
LED is illuminated, the engine
is too hot. Pull off the road,
stop the vehicle, and turn off
the engine as soon as
possible.
Engine Coolant
Temperature Gauge
(Uplevel)
Sport Mode Shown, Track Mode Similar
This gauge shows the engine
coolant temperature.
If the gauge pointer moves
into the red zone, the engine is
too hot.
This reading indicates the
same thing as the warning
light. It means that the engine
coolant has overheated. If the
vehicle has been operating
under normal driving
conditions, pull off the road,
stop the vehicle, and turn off
the engine as soon as possible. See Engine
Overheating
0391 for more
information.
Seat Belt Reminders
Driver Seat Belt Reminder
Light
There is a driver seat belt
reminder light on the
instrument cluster.
When the vehicle is started,
this light flashes and a chime
may come on to remind the
driver to fasten their seat belt.
Then the light stays on solid
until the belt is buckled. This
cycle may continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving.