Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 77
{Warning
For up to 10 seconds after
the vehicle is turned off and
the battery is disconnected,
an airbag can still inflate
during improper service. You
can be injured if you are
close to an airbag when it
inflates. Avoid yellow
connectors. They are
probably part of the airbag
system. Be sure to follow
proper service procedures,
and make sure the person
performing work for you is
qualified to do so.
Adding Equipment to
the Airbag-Equipped
Vehicle
Adding accessories that
change the vehicle's frame,
bumper system, height, front
end, or side sheet metal may
keep the airbag system from
working properly.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
72.
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-
16412876) - 2023 - CRC - 3/25/22
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
148 Lighting
Lighting
Exterior Lighting
Exterior LampControls . . . . . . . . . . . . . . . . . . . . . 148
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 150
Headlamp High/ Low-Beam Changer . . . . . 150
Flash-to-Pass . . . . . . . . . . . . . . . 150
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 150
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . . 151
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . 152
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . 152
Cornering Lamps . . . . . . . . . . . 152
Interior Lighting
Instrument Panel Illumination Control . . . . . . 153
Courtesy Lamps . . . . . . . . . . . 153
Dome Lamps . . . . . . . . . . . . . . . . 153
Reading Lamps . . . . . . . . . . . . . 153
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . 154
Exit Lighting . . . . . . . . . . . . . . . . . 154
Battery Power Protection . . . . . . . . . . . . . . . . . . 155
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 155Exterior 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 XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Lighting 149
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 the button on
the end of the turn signal lever
when the exterior lamp control
is in the AUTO or
2position.
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 the button
on the end of the turn signal
lever when the exterior lamp
control is in the AUTO or
2
position to reactivate the
IntelliBeam system. The
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Lighting 151
.The exterior lamp control is
in AUTO.
.The light sensor determines
it is daytime.
.The parking brake is
released or the vehicle is not
in P (Park).
When the DRL are on, the
taillamps, sidemarker lamps,
and other lamps will not be on.
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.
There is a light sensor on top
of the instrument panel. Do
not cover the sensor.
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
changes to the Daytime
Running Lamps (DRL). 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
0153.
When it is bright enough
outside, the headlamps will
turn off or may change
to DRL.
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.
The transition time for the
lamps coming on varies based
on wiper speed. When the
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Lighting 153
Interior Lighting
Instrument Panel
Illumination Control
This feature adjusts the
brightness of all illuminated
controls. This feature is on the
left side of the instrument
panel.
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 0153.
Dome Lamps
The dome lamp controls are in
the overhead console. To operate, press the
following buttons:
jOFF :
Press to turn off
the dome lamps when any
door is opened,
Kon the
remote key is pressed,
or when the vehicle is turned
off. 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 reading lamps on
the overhead console and
over the rear seats. These
lamps come on automatically
when any door is opened.
Front Reading Lamps
The front reading lamps are in
the overhead console.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Climate Controls 223
To improve fuel efficiency and
to cool the vehicle faster,
recirculation may be
automatically selected in warm
weather.
The recirculation light will not
come on when automatically
controlled. See
@under
“Manual Operation” for more
details.
During hands free calling the
blower level may automatically
reduce. The blower level can
be manually adjusted if
desired.
Manual Operation
ON/OFF : Press to turn the
system off or on. When off is
selected, the system will
prevent outside air from
entering the vehicle. If any
climate control buttons are
pressed, the system will turn
on and operate at the current
setting.
Q^or^ R:Lift or press to
increase or decrease the fan
speed. The fan speed setting appears on the main display.
Lifting or pressing either
button cancels automatic fan
control and the fan is
controlled manually. Press
AUTO to return to automatic
operation.
Q/R:
The temperature can be
adjusted separately for the
driver and the passenger. Lift
or press to increase or
decrease the temperature.
SYNC : Press to link the
passenger temperature
settings to the driver setting.
The SYNC indicator light will
turn on. When the passenger
settings are adjusted, the
SYNC indicator light turns off.
Air Delivery Mode Controls :
Press
z,Y, or[to change
the direction of the airflow.
The indicator light in the
button will turn on. Any
combination of the three
buttons can be selected. The
current mode appears in the
climate control display.
Pressing any of the three buttons cancels automatic air
delivery control and the
direction of the airflow is
controlled manually. Press
AUTO to return to automatic
operation.
To change the current mode,
select one or more of the
following:
z:
Clears the windows of fog
or moisture. Air is directed to
the windshield.
Y: Air is directed to the
instrument panel outlets.
[: Air is directed to the floor
outlets.
0MAX : Air is directed to the
windshield and the fan runs at
a higher speed. Fog or frost is
cleared from the windshield
more quickly. When the button
is pressed again, the system
returns to the previous mode
setting.
For best results, clear all snow
and ice from the windshield
before defrosting.