2023 CADILLAC CT4 engine

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
124 Instruments and Controls
turned off, TCS is also turned
off. To turn TCS and ESC off
and on, see Traction Control/
Electronic Stability Control
0290.
If TCS is off, wheel slip during
acceleration is not limited
unless necessary to help
protect the driveline from
damage. Adjust driving
accordingly.
StabiliTrak OFF Light
This light comes on briefly
when the vehicle is turned on
to show that the light is
working. If it does not come on
then, have it fixed so it will be
ready to warn you if there is a
problem.
This light comes on when the
StabiliTrak/Electronic Stability
Control (ESC) system is turned off. If StabiliTrak/ESC is off,
the Traction Control System
(TCS) is also off. To turn ESC
off and on, see Traction
Control/Electronic Stability
Control
0290.
If ESC and TCS are off, the
systems do not assist in
controlling the vehicle. Adjust
driving accordingly.
Traction Control
System (TCS)/
StabiliTrak Light
This light comes on briefly
when the vehicle is turned on
to show that the light is
working. If it does not come on
then, have it fixed so it will be
ready to warn you if there is a
problem. If the light is on and not
flashing, the TCS and
potentially the StabiliTrak/ESC
system are not fully
operational and may not assist
in maintaining control. Adjust
driving accordingly. If the
condition persists, see your
dealer as soon as possible.
A Driver Information Center
(DIC) message may display.
The light flashes when the
TCS and/or the StabiliTrak/
ESC system is actively
working.
See Traction Control/
Electronic Stability Control
0
290.
Engine Coolant
Temperature Warning
Light

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 125
On some vehicles this light
comes on briefly while starting
the vehicle. If it does not, have
the vehicle serviced by the
dealer. If the system is
working normally the indicator
light goes off. For vehicles
with the reconfigurable
cluster, this light may not
come on when starting the
vehicle.
Caution
The engine coolant
temperature warning light
indicates that the vehicle
has overheated. Driving with
this light on can damage the
engine and it may not be
covered by the vehicle
warranty. See Engine
Overheating0391.
The engine coolant
temperature warning light
comes on when the engine has
overheated. If this happens pull over and
turn off the engine as soon as
possible. See Engine
Overheating
0391.
Driver Mode Control
Light
This light comes on when
Sport Mode is selected.
This light comes on when
Track Mode is selected. See
Driver Mode Control 0292.
This light comes on when
Snow/Ice Mode is selected.
This light comes on when V
Mode is selected. See Driver
Mode Control 0292.
This light comes on when My
Mode is selected. See Driver
Mode Control 0292.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 127
When the Light Flashes First
and Then Is On Steady
If the light flashes for about a
minute and then stays on,
there may be a problem with
the TPMS. If the problem is
not corrected, the light will
come on every time the
vehicle is started. See Tire
Pressure Monitor Operation
0425.
Engine Oil Pressure
Light
Caution
Driving the vehicle with low
engine oil pressure can
damage the engine and the
repairs would not be
covered by the vehicle
warranty.
If the engine oil pressure
light comes on while driving:
1. Stop in a safe location and turn off the engine.
(Continued)
Caution (Continued)
2. Check the oil level. SeeEngine Oil 0378.
3. Add oil if the oil level is below the normal
operating range.
4. Restart the vehicle. If the engine oil pressure light
stays on for more than
10 seconds, turn the
vehicle back off. Do not
restart the vehicle. See
your dealer for service.
This light should come on
briefly when the engine starts.
When the engine is off and the
vehicle is on, the light should
remain illuminated. If it does
not come on under either
condition, contact your dealer. If the light comes on and stays
on when the engine is running,
it may not have adequate oil
pressure. The oil level may be
low or there may be some
other oil system problem. Turn
the engine off when it is safe
to do so and contact your
dealer.
Low Fuel Warning
Light
A Low Fuel Warning Light
near the fuel gauge comes on
briefly when the ignition is
turned on as a check to show
it is working.
It also comes on when the fuel
gauge indicator nears empty.
The light turns off when fuel is
added. If it does not, have the
vehicle serviced.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
128 Instruments and Controls
Security Light
The security light should come
on briefly as the engine is
started. If it does not come on,
have the vehicle serviced by
your dealer. If the system is
working normally, the indicator
light turns off.
If the light stays on and the
engine does not start, there
could be a problem with the
theft-deterrent system. See
Immobilizer Operation027.
High-Beam On Light
This light comes on when the
high-beam headlamps are in
use. See Headlamp High/
Low-Beam Changer 0147.
IntelliBeam Light
This light comes on when the
IntelliBeam system,
if equipped, is enabled. See
Exterior Lamp Controls 0145.
Lamps On Reminder
This light comes on when the
exterior lamps are in use,
except when only the Daytime Running Lamps (DRL) are
active. See Exterior Lamp
Controls
0145.
Cruise Control Light
The cruise control light is
white when the cruise control
is on and ready, and turns
green when the cruise control
is set and active.
See Cruise Control 0301.
Adaptive Cruise Control
Light
Base LevelUplevel

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 131
economy over recent driving
history and the amount of fuel
remaining in the fuel tank.
Oil Life :Shows an estimate of
the oil's remaining useful 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 will appear 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 will display 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 SOON message
displays, the engine air filter
should be replaced at the
earliest convenience.
The Air Filter Life display must
be reset after the engine air
filter replacement. To reset,
see Engine Air Filter Life
System 0383.
Brake Pad Life : If equipped,
This displays an estimate of
the remaining life of the front
and rear brake pads.
Messages will display 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.
Tire Pressure : Shows the
approximate pressures of all
four tires. Tire pressure is
displayed in either
kilopascal (kPa) or in pounds
per square inch (psi). If the
pressure is low, the value for
that tire is shown in amber.
See Tire Pressure Monitor
System 0424 and
Tire Pressure Monitor
Operation 0425.
Fuel Economy : Displays
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy.
Average Speed : Displays the
average vehicle speed of the
vehicle in kilometers per
hour (km/h) or miles per
hour (mph). This average is

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
132 Instruments and Controls
based on the various vehicle
speeds recorded since the last
reset. Reset the average
speed by pressing the
thumbwheel while this display
is active to show a
confirmation window to select
yes or no.
Timer :This display can be
used as a timer. To start the
timer, press the thumbwheel
while this display is active. The
display will show the amount
of time that has passed since
the timer was last reset. To
stop the timer, press the
thumbwheel briefly while this
display is active and the timer
is running.
Press the thumbwheel while
this display is active to reset
the timer.
Follow Distance/Gap
Setting : When Adaptive
Cruise Control (ACC) is not
engaged, the current follow
time to the vehicle ahead is
displayed as a time value on
this page. When ACC has been engaged, the display switches
to the gap setting page. This
page shows the current gap
setting along with the vehicle
ahead telltale.
Driver Assistance :
If equipped, shows information
for Lane Keep Assist (LKA)
and Forward Collision
Alert (FCA).
Battery Voltage :
Shows the
current battery voltage.
Coolant Temperature :
Shows the engine coolant
temperature in either degrees
Celsius (°C) or degrees
Fahrenheit (°F).
Oil Temperature : Shows the
engine oil temperature in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Engine Hours (Hourmeter) :
Shows the total number of
hours the engine has run. The
display also shows the engine
idle hours. Engine Boost :
Displays
engine manifold pressure
relative to ambient air
pressure. It will display boost
pressure generated by the
turbocharging system.
Transmission Fluid
Temperature : Shows the
temperature of the automatic
transmission fluid in either
degrees Celsius (°C) or
degrees Fahrenheit (°F).
Info Page Options : Scroll to
choose which info pages
appear on the DIC. Press the
thumbwheel to select or
deselect.
Blank Page : Allows for no
information to be displayed in
the cluster info display areas.
Driver Information
Center (DIC) (Uplevel)
The DIC is displayed in the
instrument cluster. It shows
the status of many vehicle
systems.

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