2023 CADILLAC XT4 engine

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
128 Instruments and Controls
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 Equipment0325.
See your dealer if assistance
is needed.
The vehicle may not pass
inspection if:
.The light is on when the
engine is running.
.The light does not come on
when the ignition is in
Service Mode.
.Critical emission control
systems have not been
completely diagnosed. If this
happens, the vehicle would
not be ready for inspection
and might require
several days of routine
driving before the system is
ready for inspection. This
can happen if the 12-volt battery has recently been
replaced or run down, or if
the vehicle has been
recently serviced.
See your dealer if the vehicle
will not pass or cannot be
made ready for the test.
Brake System
Warning Light
MetricEnglish
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 comes on and stays
on, there is a brake problem.
Have the brake system
inspected right away. This light may come on if the brake
fluid is low. See Brake Fluid
0
345.
If the light comes on while
driving, pull off the road and
stop carefully. The brake
system has electric brake
boost. Vehicle speed may be
limited when the brake system
warning light comes on. The
brake pedal might be harder to
push, or the brake pedal may
go closer to the floor. It could
take longer to stop. If the light
is still on, have the vehicle
towed for service. See
Transporting a Disabled
Vehicle 0407.
{Warning
The brake system might not
be working properly if the
brake system warning light
is on. Driving with the brake
system warning light on can
lead to a crash. If the light is
still on after the vehicle has
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 133
The light flashes when the
TCS and/or the StabiliTrak/
ESC system is actively
working.
See Traction Control/
Electronic Stability Control
0267.
Engine Coolant
Temperature Warning
Light (Uplevel)
This light comes on briefly
while starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
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
Overheating 0342.
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 0342.
Driver Mode Control
Light
This light comes on when
Sport Mode is selected.
This light comes on when
Snow/Ice Mode is selected.
This light comes on when
Off-Road Mode is selected.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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134 Instruments and Controls
See Driver Mode Control
0269.
Tire Pressure Light
If equipped with the Tire
Pressure Monitor System
(TPMS), this light comes on
briefly when the vehicle is
started. It provides
information about tire
pressures and the TPMS.
When the Light Is On Steady
This indicates that one or
more of the tires are
significantly underinflated.
A Driver Information Center
(DIC) tire pressure message
may also display. Stop as soon
as possible, and inflate the
tires to the pressure value shown on the Tire and
Loading Information label. See
Tire Pressure
0372.
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
0 376.
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:
(Continued)
Caution (Continued)
1. Stop in a safe locationand turn off the engine.
2. Check the oil level. See Engine Oil 0332.
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

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 135
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.
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 Operation
033.
High-Beam On Light
This light comes on when the
high-beam headlamps are in
use. See Headlamp High/
Low-Beam Changer 0150.
IntelliBeam Light
This light comes on when the
IntelliBeam system,
if equipped, is enabled. See
Exterior Lamp Controls 0148.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
138 Instruments and Controls
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.
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 0332. In
addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See
Maintenance Schedule 0425.
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. To reset, see
Engine Oil Life System
0335.
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 0375 and
Tire Pressure Monitor
Operation 0376.
Air Filter Life : 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
0336.
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
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 139
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 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.
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 image is projected
through the HUD lens on top
of the instrument panel. The

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
140 Instruments and Controls
information appears as an
image 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 0203 and “Options”
under Instrument Cluster
0 119.
HUD Display on the
Windshield
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
0143.
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.

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Instruments and Controls 143
HUD Troubleshooting
If you cannot see the HUD
image when the ignition is on,
check that:
.Nothing is covering the
HUD lens.
.The HUD brightness setting
is not too dim or too bright.
.The HUD is adjusted to the
proper height.
.Polarized sunglasses are
not worn.
.The windshield and HUD lens
are clean.
If the HUD image is not
correct, contact your dealer.
The windshield is part of the
HUD system. See Windshield
Replacement 0349.
Vehicle Messages
Messages displayed on the
Driver Information Center
(DIC) indicate the status of the
vehicle or some action that may be needed to correct a
condition. Multiple messages
may appear one after another.
The messages that do not
require immediate action can
be acknowledged and cleared
by pressing the thumbwheel.
The messages that require
immediate action cannot be
cleared until that action is
performed.
All messages should be taken
seriously; clearing the
message does not correct the
problem.
If a SERVICE message
appears, see your dealer.
Follow the instructions given
in the messages. The system
displays messages regarding
the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.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
ENGINE POWER IS
REDUCED
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 the
performance may be reduced