display CADILLAC XT4 2024 Owners Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Driving and Operating 243
Turning the Feature On or Off
Bicyclist Detection can be turned on or off
through vehicle settings. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Collision/Detection
Systems.
Blind Zone Steering Assist (BZSA)
If equipped, the Blind Zone Steering Assist
(BZSA) system can detect a potential crash
with a moving vehicle in the lane you are
entering. It provides a brief, urgent turn of
the steering wheel to alert you to take
action to avoid a collision.
BZSA works with the Lane Keep Assist (LKA).
BZSA operates when the vehicle is in a
forward gear, and only when LKA is enabled
and able to assist. SeeLane Keep Assist
(LKA) 0245.
BZSA will provide a steering correction when
your vehicle is about to leave the current
lane of travel, with the possibility of a
collision with a vehicle in the adjacent lane.
This steering correction happens closer to
the center of the lane and has a stronger
steering correction than LKA. Unlike LKA, the
steering correction with BSZA will happen
even if your turn signal is on in the
direction of lane departure. In addition to the BZSA steering
intervention, the
Awill turn amber, six
beeps or six seat pulses will occur,
if equipped with Safety Alert Seat, and
8or|will flash on the outside
rear view mirror.
{Warning
Do not rely on Blind Zone Steering Assist
(BZSA) to prevent crashes. This system
does not replace the need to pay
attention and drive safely. Failure to use
proper care when driving may result in
vehicle damage, injury, or death.
.BZSA performance may be affected by
weather and road conditions.
.BZSA does not provide steering
assistance to avoid a vehicle that is in,
or has entered, your lane of travel.
.BZSA will not prevent a towed trailer
from crossing into the adjacent lane.
Always monitor the trailer position
while towing to ensure it is in the
same lane as your vehicle. BZSA is
only designed to detect when your
vehicle unintentionally crosses
detected lane lines.
Traffic Sign Assistant
If equipped, Traffic Sign Assistant recognizes
designated traffic signs via the front camera
located behind the windshield in front of the
interior rear view mirror, and displays the
detected speed limit in the Driver
Information Center (DIC). Additionally, speed
limit information from the navigation
system map database may be used.
Caution
The system is intended to assist the
driver within a defined speed range to
discern certain traffic signs. Always pay
attention to posted speed limit signs.
Do not ignore traffic signs which are not
displayed by the system.
The system does not discern any signs
other than the conventional traffic signs
that might give or end a speed limit.
It may not detect some electronic speed
signs.
(Continued)

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244 Driving and Operating
Caution (Continued)
Depending on the weather conditions or
problems with traffic signs, a traffic sign
may not be recognized or a sign different
from the actual traffic sign may be
displayed.
Do not let this special feature tempt you
into taking risks when driving.
Always adapt vehicle speed to the road
conditions.
Driver assistance systems do not relieve
the driver from full responsibility for
vehicle operation.
Traffic signs that are detected are:
.Speed Limit
.Constraint Signs
Display Indication
The currently detected speed limit is
displayed in the DIC until the next speed
limit or end of speed limit sign is detected.
Depending on the vehicle, the current valid
speed limit is permanently displayed on the
DIC or in the upper left of the instrument
cluster. A
(–) symbol in a frame indicates there is a
sign detected which cannot be clearly
identified by the system.
A (/) symbol in a frame indicates that the
feature is turned off or has failed.
See Driver Information Center (DIC) 0111.
Alert Function
If equipped, a chime may sound when you
have exceeded the indicated speed limit,
or if a new speed limit is detected.
The alert function can be turned on or off.
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems.
Each time the vehicle is started, the
customization options will be turned on.
Exceeding Indicated Speed Limit
If the indicated traffic sign speed limit is
exceeded by 5 km/h (3 mph) or more, the
permanently displayed traffic sign symbol
will flash until the vehicle speed is reduced
to or below the indicated speed limit.
System Reset
The content of the traffic sign display can
be cleared. To view available settings from
the infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems.
Upon successful reset, a (–)symbol displays
until the next traffic sign is detected or
provided by the navigation system map
data. In some cases, traffic sign memory is
cleared automatically by the system.
Alert function will automatically be turned
on when the system is reset.
See Driver Information Center (DIC) 0111.
Navigation System Traffic Sign Detection
The currently displayed sign can either
originate from sign detection using the
camera, or from the navigation system map
data. If the currently displayed sign
originates from map data and the map
information changes, a new sign will be
displayed. This may lead to detection of a
new sign although no sign on the road may
have been passed. If the map data is
unavailable, Traffic Sign Assistant will turn
off automatically.

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Driving and Operating 245
Limitations
Traffic sign memory may not operate
correctly if:
.The area of the windshield, where the
front camera is located, is not clean or is
affected by foreign objects, e.g. stickers,
window tinting, etc.
.Traffic signs are completely or partially
covered, are too low or high or difficult to
discern.
.Traffic signs are incorrectly mounted or
are damaged.
.Traffic signs do not comply with the
approved traffic sign standards.
.The speed limit is displayed by certain
types of electronic speed signs.
.There are adverse environmental
conditions, e.g. heavy rain, snow, direct
sunlight or shadows.
.The headlights are dirty or not correctly
aligned when driving at night.
.The navigation map data is out of date.
.The navigation map is unavailable.
Lane Keep Assist (LKA)
If equipped, LKA may help avoid crashes due
to unintentional lane departures. This
system uses a camera to detect lanemarkings. The LKA system can be ready to
assist at speeds between approximately
60 km/h (37 mph) and 180 km/h (112 mph).
On some vehicles, the system will instead
operate above 50 km/h (31 mph). LKA may
assist by gently turning the steering wheel
if the vehicle approaches a detected lane
marking. It may also provide a Lane
Departure Warning (LDW) alert if the vehicle
crosses a detected lane marking. This system
is not intended to keep the vehicle centered
in the lane. LKA will not assist and alert if
the turn signal is active in the direction of
lane departure, or if it detects that you are
accelerating, braking or actively steering.
LKA can be overridden by turning the
steering wheel. If the system detects you
are steering intentionally across a lane
marker, the LDW may not be given. Do not
expect the LDW to occur when you are
intentionally crossing a lane marker.
{Warning
The LKA system does not continuously
steer the vehicle. It may not keep the
vehicle in the lane or give a Lane
Departure Warning (LDW) alert, even if a
lane marking is detected.
(Continued)
Warning (Continued)
The LKA and LDW systems may not:
.Provide an alert or enough steering
assist to avoid a lane departure or
crash.
.Detect lane markings under poor
weather or visibility conditions. This
can occur if the windshield or
headlamps are blocked by dirt, snow,
or ice; if they are not in proper
condition; or if the sun shines directly
into the camera.
.Detect road edges.
.Detect lanes on winding or hilly roads.
If LKA only detects lane markings on one
side of the road, it will only assist or
provide an LDW alert when approaching
the lane on the side where it has
detected a lane marking. Even with LKA
and LDW, you must steer the vehicle.
Always keep your attention on the road
and maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always keep
the windshield, headlamps, and camera (Continued)

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246 Driving and Operating
Warning (Continued)
sensors clean and in good repair. Do not
use LKA in bad weather conditions or on
roads with unclear lane markings, such as
construction zones.
{Warning
Using LKA on slippery roads could cause
loss of control of the vehicle and a crash.
Turn the system off.
{Warning
LKA will not alert the driver if a towed
trailer crosses into an adjacent lane of
travel. Serious injury or property damage
may occur if the trailer moves into
another lane. Always monitor the trailer
position while towing to make sure it is
within the same lane as the tow vehicle.
How the System Works
LKA uses a camera sensor installed on the
windshield ahead of the rearview mirror to
detect lane markings. It may provide brief
steering assist if it detects an unintendedlane departure. It may further provide an
audible alert or the driver seat may pulse
indicating that a lane marking has been
crossed. The system does not provide a Lane
Departure Warning (LDW) when
intentionally steering across a lane marker.
To turn LKA on and off, press
non the
center stack. If equipped, the indicator light
on the button comes on when LKA is on and
turns off when LKA is disabled. In some
vehicles a long press of over three seconds
is required to turn LKA off.
When on,
nis white, if equipped,
indicating that the system is not ready to
assist.
nis green if LKA is ready to assist.
LKA may assist by gently turning the
steering wheel if the vehicle approaches a
detected lane marking.
nis amber when
assisting. It may also provide a Lane
Departure Warning (LDW) alert by flashing
namber if the vehicle crosses a detected
lane marking. Additionally, there may be
three beeps, or the driver seat may pulse
three times, on the right or left, depending
on the lane departure direction. Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert and chime may be
provided. Steer the vehicle to dismiss. LKA
may become temporarily unavailable after
repeated take steering alerts.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as when
driving through tunnels.
.Banked roads.
.Roads with poor lane markings, such as
two-lane roads.
If the LKA system is not functioning
properly when lane markings are clearly
visible, cleaning the windshield may help.
A camera blocked message may display if
the camera is blocked. Some driver
assistance systems may have reduced
performance or not work at all. An LKA or
LDW unavailable message may display if the
systems are temporarily unavailable. This
message could be due to a blocked camera.

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264 Vehicle Care
1. Engine Air Cleaner/Filter. See“Engine Air
Cleaner/Filter”.
2. Engine Oil Fill Cap. See Engine Oil0264.
3. Engine Oil Dipstick. See Engine Oil0264.
4. Engine Cooling Fan (Out of View). See “Cooling System”.
5. Brake Fluid Reservoir. See “Brake Fluid”.
6. Battery. See “Battery - North America”.
7. Engine Coolant Surge Tank and Pressure Cap. See “Cooling System”.
8. Positive (+) Battery Terminal (Under Cover). See “Jump Starting - North
America”.
9. Windshield Washer Fluid Reservoir. See “Washer Fluid”.
10. Engine Compartment Fuse Block. See “Engine Compartment Fuse Block”.
11. Remote Negative (-) Battery Terminal. See“Jump Starting - North America”.
Engine Oil
To ensure proper engine performance and
long life, careful attention must be paid to
engine oil. Following these simple, but
important steps will help protect your
investment:
.Use engine oil approved to the proper
specification and of the proper viscosity
grade. See “Selecting the Right Engine
Oil” in this section.
.Check the engine oil level regularly and
maintain the proper oil level. See
“Checking Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the appropriate
time. SeeEngine Oil Life System 0266.
.Always dispose of engine oil properly. See
“What to Do with Used Oil” in this
section.
Checking Engine Oil
Check the engine oil level regularly, every
650 km (400 mi), especially prior to a long
trip. The engine oil dipstick handle is a loop.
See Engine Compartment Overview 0263 for
the location.
{Warning
The engine oil dipstick handle may be
hot; it could burn you. Use a towel or
glove to touch the dipstick handle.
If a low oil Driver Information Center (DIC)
message displays, check the oil level. Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the engine
oil level after the engine has been off for
at least two hours. Checking the engine
oil level on steep grades or too soon after
engine shutoff can result in incorrect
readings. Accuracy improves when
checking a cold engine prior to starting.
Remove the dipstick and check the level.
.If unable to wait two hours, the engine
must be off for at least 15 minutes if the
engine is warm, or at least 30 minutes if
the engine is not warm. Pull out the
dipstick, wipe it with a clean paper towel
or cloth, then push it back in all the way.
Remove it again, keeping the tip down,
and check the level.
When to Add Engine Oil
If the oil is below the cross-hatched area at
the tip of the dipstick and the engine has
been off for at least 15 minutes, add 1 L

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266 Vehicle Care
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
When the system has calculated that oil life
has been diminished, it indicates that an oil
change is necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the oil as
soon as possible within the next 1 000 km
(600 mi). It is possible that, if driving under
the best conditions, the oil life system may
indicate that an oil change is not necessary
for up to a year. The engine oil and filter
must be changed at least once a year and
at this time the system must be reset. Your
dealer has trained service people who willperform this work and reset the system.
It is also important to check the oil regularly
over the course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is
changed so that the system can calculate
the next engine oil change. To reset the
system:
1. Using the DIC controls on the right side of the steering wheel, display
REMAINING OIL LIFE on the DIC. See
Driver Information Center (DIC) 0111.
When remaining oil life is low, the
CHANGE ENGINE OIL SOON message will
appear on the display.
2. Press
Von the DIC controls and hold
down for a few seconds to clear the
CHANGE ENGINE OIL SOON message and
reset the oil life at 100%. Be careful not to reset the oil life display
accidentally at any time other than after
the oil is changed. It cannot be reset
accurately until the next oil change.
The system is reset when the CHANGE
ENGINE OIL SOON message is off.
If the CHANGE ENGINE OIL SOON message
comes back on when the vehicle is started,
the engine oil life system has not been
reset. Repeat the procedure.
Automatic Transmission Fluid
A transmission fluid leak is the only reason
for fluid loss. If a leak occurs, take the
vehicle to your dealer and have it repaired
as soon as possible.
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
covered by the vehicle warranty. Always
use the correct automatic transmission
fluid. See Recommended Fluids and
Lubricants 0334.
See your dealer to have the fluid and filter
changed at the intervals listed in the
Maintenance Schedule 0330.

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Vehicle Care 267
Engine Air Filter Life System
If equipped, this feature provides the engine
air filter's remaining life and best timing for
a change. The timing to change an engine
air filter depends on driving and
environmental conditions.
When to Change Engine Air Filter
When the Driver Information Center (DIC)
displays a message to replace the engine air
filter at the next oil change, follow this
timing.
When the DIC displays a message to replace
the engine air filter soon, replace the engine
air filter at the earliest convenience. The
system must be reset after the engine air
filter is changed.
If the DIC displays a message to check the
engine air filter system, see your dealer.
How to Reset Engine Air Filter Life
System
To reset:1. Place the vehicle in P (Park).
2. On the infotainment home screen, select Vehicle Status > Fluids & Filters > Engine
Air Filter Life. See
Vehicle Status 0113 for instructions
on navigating and selecting items.
3. Touch Reset.
4. Touch Yes to confirm.
Engine Air Cleaner/Filter
The engine air cleaner/filter is in the engine
compartment on the passenger side of the
vehicle. See Engine Compartment Overview
0 263.
When to Inspect the Engine Air Cleaner/
Filter
.For intervals on changing and inspecting
the engine air filter, see Maintenance
Schedule 0330.
.If equipped with Engine Air Filter Life
System, see Engine Air Filter Life System
0 267.
.If driving in very dusty areas, follow the
engine air filter inspecting and changing
intervals, see Maintenance Schedule
0 330.
How to Inspect/Replace the Engine Air
Cleaner/Filter
Do not start the engine or have the engine
running with the engine air cleaner/filter
housing open. Before removing the engine air cleaner/filter, make sure that the engine
air cleaner/filter housing and nearby
components are free of dirt and debris.
Remove the engine air cleaner/filter. Lightly
tap and shake the engine air cleaner/filter
(away from the vehicle), to release dust and
dirt. Inspect the engine air cleaner/filter for
damage, and replace if damaged. Do not
clean the engine air cleaner/filter or
components with water or compressed air.
To inspect or replace the engine air cleaner/
filter:
1. Remove the six screws on top of the
engine air cleaner/filter housing.
2. Lift the air cleaner/filter cover housing away from the engine.

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Vehicle Care 271
4. Turn the ignition to Service Mode. SeeIgnition Positions 0174.
5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the brake for automatic transmission
vehicles for two seconds, then release.
At the end of the cycle, check the coolant
level in the surge tank and add coolant if it
is low. Turn off the vehicle, allow the
Electronic Control Module (ECM) to go to
sleep, about 2 minutes, and repeat Steps 3-7.
Listen for pump activation and movement of
the control valves while watching the level
of the coolant in the surge tank. If the tank
empties, turn the ignition off, carefully
remove the surge tank cap, refill to the
indicated mark, and repeat Steps 3-6. The fill
and air removal process will run for
approximately 10 minutes.
Engine Overheating
The vehicle has several indicators to warn of
the engine overheating. There is an engine coolant temperature
gauge on the instrument cluster. See
Engine
Coolant Temperature Gauge 099. The
vehicle may also display a message on the
Driver Information Center (DIC).
If the decision is made not to lift the hood
when this warning appears, get service help
right away. See Roadside Assistance Program
0 343.
If the decision is made to lift the hood,
make sure the vehicle is parked on a level
surface. Then check to see if the engine
cooling fan is running. If the engine is
overheating, the fan should be running. If it
is not, do not continue to run the engine.
Have the vehicle serviced.
Caution
Do not run the engine if there is a leak
in the engine cooling system. This can
cause a loss of all coolant and can
damage the system and vehicle. Have
any leaks fixed right away.
If Steam Is Coming from the Engine
Compartment
{Warning
Steam and scalding liquids from a hot
cooling system are under pressure.
Turning the pressure cap, even a little,
can cause them to come out at high
speed and you could be burned. Never
turn the cap when the cooling system,
including the pressure cap, is hot. Wait
for the cooling system and pressure cap
to cool.
If No Steam Is Coming from the Engine
Compartment
If an engine overheat warning is displayed
but no steam can be seen or heard, the
problem may not be too serious. Sometimes
the engine can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
If the overheat warning is displayed with no
sign of steam: 1. Turn the air conditioning off.

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272 Vehicle Care
2. Turn the heater on to the highesttemperature and to the highest fan
speed. Open the windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and
let the engine idle.
If the engine coolant temperature gauge is
no longer in the overheated area or the
engine coolant temperature warning light no
longer displays, the vehicle can be driven.
Continue to drive the vehicle slowly for
about 10 minutes. Keep a safe distance from
the vehicle in front. If the warning does not
come back on, continue to drive normally
and have the cooling system checked for
proper fill and function.
If the warning continues, pull over, stop, and
park the vehicle right away.
If there is no sign of steam, idle the engine
for three minutes while parked. If the
warning is still displayed, turn off the
engine until it cools down.
Washer Fluid
What to Use
When windshield washer fluid is needed, be
sure to read the manufacturer's instructions
before use. If operating the vehicle in an area where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
The appropriate message will appear in the
Driver Information Center (DIC) when the
fluid level is low.
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Engine Compartment Overview
0263 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip.
.Do not use engine coolant (antifreeze)
in the windshield washer. It can
damage the windshield washer system
and paint.
(Continued)
Caution (Continued)
.Do not mix water with ready-to-use
washer fluid. Water can cause the
solution to freeze and damage the
washer fluid tank and other parts of
the washer system.
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.
Brakes
Disc brake linings have built-in wear
indicators that make a high-pitched warning
sound when the brake linings are worn and
new linings are needed. The sound can come
and go or can be heard all the time when
the vehicle is moving, except when applying
the brake pedal firmly.

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Vehicle Care 285
FusesUsage
F1 Blower Motor Fuses
Usage
F2 ELM 1 –Exterior Lighting
Module 1
F3 Column Lock
F4 ELM 2 –Exterior Lighting
Module 2
F5 BCM 2 –Body Control
Module 2
F6 Amplifier F7 Clock Spring
F8 DLC –Data Link Connector
F9 BCM 1 –Body Control
Module 1/SIB –Shifter
Interface Board
F10 Headliner/Auxiliary Switch F11 Display and HVAC
F12 Steering Column Lock
F13 Video Driving Monitoring System (DMS)/Safety 2
F14 RC MISC 3/ECM –Ride
Control Miscellaneous 3/
Electronic Control Module
F15 Rear Wiper