brake CADILLAC XT4 2024 Repair Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
232 Driving and Operating
Rear Pedestrian Alert Indicator
When a pedestrian is detected within the
system’s range directly behind the vehicle,
this symbol flashes amber on the
infotainment display, along with five beeps
from the rear, or if equipped, two pulses
from both sides of the driver seat. When a
pedestrian is detected close to the vehicle,
the symbol flashes red on the infotainment
display, along with ten beeps from the rear,
or if equipped, seven pulses from both sides
of the driver seat.
{Warning
Rear Pedestrian Alert does not
automatically brake the vehicle. It also
does not provide an alert unless it
detects a pedestrian, and it may not
detect all pedestrians if: (Continued)
Warning (Continued)
.The pedestrian is not directly behind
the vehicle, fully visible to the Rear
Vision Camera (RVC), or standing
upright.
.The pedestrian is part of a group.
.The pedestrian is a child.
.Visibility is poor, including nighttime
conditions, fog, rain, or snow.
.The RVC is blocked by dirt, snow,
or ice.
.The RVC, taillamps, or back-up lamps
are not cleaned or in proper working
condition.
.The vehicle is not in R (Reverse).
To help avoid death or injury, always
check for pedestrians around the vehicle
before backing up. Be ready to take
action and apply the brakes. See
Defensive Driving 0164. Keep the RVC,
taillamps, and back-up lamps clean and in
good repair. Rear Pedestrian Alert can be set to Off or
Alert. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems > Rear
Pedestrian Alert.
If equipped, alerts can be set to beeps or
seat pulses. To view available settings from
the infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems >
Alert Type.
Rear Cross Traffic Alert (RCTA)
System
If equipped, Rear Cross Traffic Alert (RCTA)
displays a red warning triangle with a left
or right pointing arrow on the infotainment
display to warn of traffic coming from the
left or right. This system detects objects
coming from up to 20 m (65 ft) from the left
or right side of the vehicle. When an object
is detected, either three beeps sound from
the left or right or three Safety Alert Seat
pulses occur on the left or right side,
depending on the direction of the detected
vehicle.

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Driving and Operating 233
Rear Cross Traffic Braking (RCTB)
If equipped, RCTB displays a red warning
triangle with a left or right pointing arrow
on the infotainment screen to warn of
traffic coming from the left or right. The
system detects objects coming from up to
20 m (65 ft) from the left or right side of
the vehicle. When an object is detected,
three beeps sounds from the left or right,
depending on the direction of the detected
vehicle. RCTB will bring the vehicle to a full
stop if a collision is imminent.
Driving With a Trailer
Use caution while backing up when towing
a trailer. RCTA and RCTB are automatically
disabled when a trailer is attached to the
vehicle.
Turning the Feature On or Off
To view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems.
Assistance Systems for Driving
If equipped, when driving the vehicle in a
forward gear, Forward Collision Alert (FCA),
Lane Keep Assist (LKA), Side Blind Zone Alert
(SBZA), Lane Change Alert (LCA), AutomaticEmergency Braking (AEB), and/or the Front
Pedestrian Braking (FPB) System can help to
avoid a crash or reduce crash damage.
Forward Collision Alert (FCA)
System
If equipped, the FCA system may help to
avoid or reduce the harm caused by
front-end crashes. When approaching a
vehicle ahead too quickly, FCA provides a
red flashing alert on the windshield and
rapidly beeps or pulses the driver seat. FCA
also lights an amber visual alert if following
another vehicle much too closely.
FCA can detect vehicles to distances of
approximately 110 m (360 ft) and operates at
all speeds.
{Warning
FCA is a warning system and does not
apply the brakes. When approaching a
slower-moving or stopped vehicle ahead
too rapidly, or when following a vehicle
too closely, FCA may not provide a
warning with enough time to help avoid
a crash. It also may not provide any
warning at all. FCA does not warn of
(Continued)
Warning (Continued)
pedestrians, animals, signs, guardrails,
bridges, construction barrels, or other
objects. Be ready to take action and
apply the brakes. SeeDefensive Driving
0 164.
FCA can be disabled. To view available
settings from the infotainment screen, touch
Settings > Vehicle > Collision/Detection
Systems.
Detecting the Vehicle Ahead
FCA warnings will not occur unless the FCA
system detects a vehicle ahead. When a
vehicle is detected, the vehicle ahead
indicator will display green. Vehicles may
not be detected on curves, highway exit
ramps, or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
234 Driving and Operating
pedestrians or other objects. FCA will not
detect another vehicle ahead until it is
completely in the driving lane.
{Warning
FCA does not provide a warning to help
avoid a crash, unless it detects a vehicle.
FCA may not detect a vehicle ahead if
the FCA sensor is blocked by dirt, snow,
or ice, or if the windshield is damaged.
It may also not detect a vehicle on
winding or hilly roads, or in conditions
that can limit visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in proper
condition. Keep the windshield,
headlamps, and FCA sensors clean and in
good repair.
Collision Alert
With Head-Up Display
Without Head-Up Display
When your vehicle approaches another
detected vehicle too rapidly, the red FCA
display will flash on the windshield. Also,
eight rapid high-pitched beeps will sound
from the front, or both sides of the Safety
Alert Seat will pulse five times. When this
Collision Alert occurs, the brake system may
prepare for driver braking to occur more
rapidly which can cause a brief, mild
deceleration. Continue to apply the brake
pedal as needed.
Tailgating Alert
The vehicle ahead indicator will display
amber when you are following a vehicle
ahead much too closely.
Selecting the Alert Timing
The Collision Alert control is on the steering
wheel. Press
[to set the FCA timing to
Far, Medium, or Near. The first button press
shows the current setting on the DIC.
Additional button presses will change this
setting. The chosen setting will remain until
it is changed and will affect the timing of
both the Collision Alert and the Tailgating
Alert features. The timing of both alerts will
vary based on vehicle speed. The faster the
vehicle speed, the farther away the alert will
occur. Consider traffic and weather
conditions when selecting the alert timing.
The range of selectable alert timings may
not be appropriate for all drivers and driving
conditions.
If your vehicle is equipped with Adaptive
Cruise Control (ACC), changing the FCA
timing setting automatically changes the
following gap setting (Far, Medium,
or Near).

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 235
Following Distance Indicator
The following distance to a moving vehicle
ahead in your path is indicated in following
time in seconds on the Driver Information
Center (DIC). SeeDriver Information Center
(DIC) 0111. The minimum following time is
0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is out
of sensor range, dashes will be displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts for
turning vehicles, vehicles in other lanes,
objects that are not vehicles, or shadows.
These alerts are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to operate
properly, this may correct the issue:
.Clean the outside of the windshield in
front of the rearview mirror.
.Clean the entire front of the vehicle.
.Clean the headlamps.
Automatic Emergency
Braking (AEB)
If equipped, the AEB system may help avoid
or reduce the harm caused by front-end
crashes. AEB also includes Intelligent Brake
Assist (IBA). When the system detects a
vehicle in the path ahead that is traveling in
the same direction, and that you may crash
into, it can provide a boost to braking,
or automatically brake the vehicle. This can
help avoid or lessen the severity of crashes
when driving in a forward gear. Depending
on the situation, the vehicle may
automatically brake moderately or hard. This
Automatic Emergency Braking can only
occur if a vehicle is detected. Vehicle
detection is shown by the Forward Collision
Alert (FCA) vehicle ahead indicator being lit.
See Forward Collision Alert (FCA) System
0 233.
The system works when driving in a forward
gear between 8 km/h (5 mph) and 80 km/h
(50 mph), or on vehicles with Adaptive
Cruise Control (ACC), above 4 km/h (2 mph).
It can detect vehicles up to approximately
60 m (197 ft).
{Warning
AEB is an emergency crash preparation
feature and is not designed to avoid
crashes. Do not rely on AEB to brake the
vehicle. AEB will not brake outside of its
operating speed range and only responds
to detected vehicles.
AEB may not:
.Detect a vehicle ahead on winding or
hilly roads.
.Detect all vehicles, especially vehicles
with a trailer, tractors, muddy
vehicles, etc.
.Detect a vehicle when weather limits
visibility, such as in fog, rain, or snow.
.Detect a vehicle ahead if it is partially
blocked by pedestrians or other
objects.
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes.
AEB may slow the vehicle to a complete
stop to try to avoid a potential crash. If this
happens, AEB may engage the Electric

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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236 Driving and Operating
Parking Brake (EPB) to hold the vehicle at a
stop. Release the EPB or firmly press the
accelerator pedal.
{Warning
AEB may automatically brake the vehicle
suddenly in situations where it is
unexpected and undesired. It could
respond to a turning vehicle ahead,
guardrails, signs, and other non-moving
objects. To override AEB, firmly press the
accelerator pedal, if it is safe to do so.
Intelligent Brake Assist (IBA)
IBA may activate when the brake pedal is
applied quickly by providing a boost to
braking based on the speed of approach and
distance to a vehicle ahead.
Minor brake pedal pulsations or pedal
movement during this time is normal and
the brake pedal should continue to be
applied as needed. IBA will automatically
disengage only when the brake pedal is
released.
{Warning
IBA may increase vehicle braking in
situations when it may not be necessary.
You could block the flow of traffic. If this
occurs, take your foot off the brake pedal
and then apply the brakes as needed.
AEB and IBA can be disabled through vehicle
settings. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems.
{Warning
Using AEB or IBA while towing a trailer
could cause you to lose control of the
vehicle and crash. Turn the system to
Alert or Off when towing a trailer.
A system unavailable message may
display if:
.The front of the vehicle or windshield is
not clean.
.Heavy rain or snow is interfering with
object detection.
.There is a problem with the StabiliTrak/
Electronic Stability Control (ESC) system.
The AEB system does not need service.
Intersection Automatic Emergency
Braking (I-AEB) System
If equipped, the I-AEB system may help
avoid or reduce the harm caused by
front-end crashes with crossing vehicles,
or when performing a left-hand turn.
The system works when driving in a forward
gear above 15 km/h (9 mph) and less than
80 km/h (50 mph). It can detect oncoming
vehicles up to approximately 60 m (197 ft).
{Warning
I-AEB is an emergency crash preparation
feature. Do not rely on I-AEB to brake or
avoid crashes. I-AEB will not brake outside
of its operating speed range and only
responds to detected intersecting
vehicles. I-AEB may not:
.detect a crossing or oncoming vehicle
on winding or hilly roads.
.detect all vehicles, especially vehicles
with a trailer, tractors, muddy
vehicles, etc.
.detect a vehicle when weather limits
visibility, such as in fog, rain, or snow. (Continued)

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Driving and Operating 237
Warning (Continued)
.detect a vehicle ahead if it is partially
blocked by pedestrians or other
objects.
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes.
Vehicle Crossing the Path Ahead
When there is a crossing vehicle detected
approaching from the right or the left side
that may lead to a collision, I-AEB provides a
red flashing alert on the windshield and
rapidly beeps or pulses the Safety Alert
Seat. See Advanced Driver Assistance
Systems 0223. I-AEB can provide a boost to
braking or automatically brake the vehicle.
Turning Left Across Oncoming Traffic
When the system detects that the vehicle is
turning left and there is risk for collision
with an oncoming vehicle, I-AEB provides a
red flashing alert on the windshield and
rapidly beeps or pulses the driver seat. I-AEB
can provide a boost to braking or
automatically brake the vehicle.
I-AEB can be set to Off, Alert, or Alert and
Brake. To view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems.
Crossing Traffic Alert
When your vehicle approaches an
intersecting vehicle too rapidly and there is
risk of a collision, a red warning graphic will
flash on the windshield. Also, eight rapid
high-pitched beeps will sound, or the driver
seat will pulse five times. The side of the seat that is pulsed and the location of the
beeps will depend on the direction that the
intersecting vehicle is detected from. When
this collision alert occurs, the brake system
may prepare for driver braking to occur
more rapidly which can cause a brief, mild
deceleration. Continue to apply the brake
pedal as needed.
With Head-Up Display
Without Head-Up Display
Turning Across Oncoming Traffic Alert
When your vehicle approaches another
detected vehicle too rapidly, a red graphic
will flash on the windshield. Also, eight
rapid high-pitched beeps will sound from the

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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238 Driving and Operating
front, or both sides of the Safety Alert Seat
will pulse five times. When this Collision
Alert occurs, the brake system may prepare
for driver braking to occur more rapidly
which can cause a brief, mild deceleration.
Continue to apply the brake pedal as
needed.
With Head-Up Display
Without Head-Up Display
Automatic Braking
If I-AEB detects it is about to crash into an
intersecting vehicle, and the brakes have not
been applied, I-AEB may automatically brake
moderately or hard. This can help to avoid
some crashes or lessen impact by reducing the speed of the vehicle. Always wear a seat
belt and check that all passengers are
properly restrained. I-AEB can automatically
brake between 15 km/h (9 mph) and
80 km/h (50 mph). Automatic braking levels
may be reduced under certain conditions,
such as higher speeds.
I-AEB may slow the vehicle to a complete
stop to try to avoid a potential crash. If this
happens, I-AEB may engage the Electric
Parking Brake (EPB) to hold the vehicle at a
stop. Release the EPB or firmly press the
accelerator pedal to continue driving.
I-AEB may also apply the brakes
automatically when there is an intersecting
vehicle at risk of collision and the system
determines that the driver is not braking
with sufficient force.
Minor brake pedal pulsations or pedal
movement during this time is normal and
the brake pedal should continue to be
applied as needed.
{Warning
I-AEB may automatically brake or increase
vehicle braking in situations when it may
not be necessary or desired. Your vehicle
(Continued)
Warning (Continued)
could block the flow of traffic. I-AEB may
respond to stationary or parked vehicles,
signs, and other non-moving objects. To
override AEB, firmly press the accelerator
pedal, if it is safe to do so.
{Warning
Using I-AEB while towing a trailer could
cause you to lose control of the vehicle
and crash. Turn the system to Alert or
Off when towing a trailer.
Cleaning the System
If I-AEB does not seem to operate properly,
cleaning the outside of the windshield in
front of the rearview mirror may correct the
issue.
Front Pedestrian Braking (FPB)
System
If equipped, the FPB system may help avoid
or reduce the harm caused by front-end
crashes with nearby pedestrians or bicyclists
when driving in a forward gear. FPB displays
an amber indicator,
~, when a nearby

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Driving and Operating 239
pedestrian or bicyclist is detected ahead.
When approaching a detected pedestrian or
bicyclist too quickly, FPB provides a red
flashing alert on the windshield and rapidly
beeps or pulses the driver seat. FPB can
provide a boost to braking or automatically
brake the vehicle. This system includes
Intelligent Brake Assist (IBA), and the
Automatic Emergency Braking (AEB) system
may also respond to pedestrians or
bicyclists. SeeAutomatic Emergency Braking
(AEB) 0235.
The FPB system can detect and alert to
pedestrians or bicyclists in a forward gear at
speeds between 8 km/h (5 mph) and
80 km/h (50 mph). During daytime driving,
the system detects pedestrians or bicyclists
up to a distance of approximately 40 m
(131 ft). During nighttime driving, system
performance is very limited.
{Warning
FPB does not provide an alert or
automatically brake the vehicle, unless it
detects a pedestrian. FPB may not detect
pedestrians, including children: (Continued)
Warning (Continued)
.When the pedestrian is not directly
ahead, fully visible, or standing
upright, or when part of a group.
.Due to poor visibility, including
nighttime conditions, fog, rain,
or snow.
.If the FPB sensor is blocked by dirt,
snow, or ice.
.If the headlamps or windshield are not
cleaned or in proper condition.
Be ready to take action and apply the
brakes. For more information, see
Defensive Driving 0164. Keep the
windshield, headlamps, and FPB sensor
clean and in good repair.
FPB can be set to Off, Alert, or Alert and
Brake through vehicle settings. To view
available settings from the infotainment
screen, touch Settings > Vehicle > Collision/
Detection Systems.
Detecting the Pedestrian Ahead
FPB alerts and automatic braking will not
occur unless the FPB system detects a
pedestrian or bicyclist. When a pedestrian or
bicyclist that may enter the vehicle’s
forward path is detected, the pedestrian
ahead indicator will display amber.
Front Pedestrian Alert
With Head-Up Display

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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240 Driving and Operating
Without Head-Up Display
When the vehicle approaches a pedestrian
or bicyclist ahead too rapidly, the red FPB
alert display will flash on the windshield.
Eight rapid high-pitched beeps will sound
from the front, or both sides of the Safety
Alert Seat will pulse five times. When this
Pedestrian Alert occurs, the brake system
may prepare for driver braking to occur
more rapidly which can cause a brief, mild
deceleration. Continue to apply the brake
pedal as needed. Cruise control may be
disengaged when the Front Pedestrian Alert
occurs.
Automatic Braking
If FPB detects it is about to crash into a
pedestrian or bicyclist directly ahead, and
the brakes have not been applied, FPB may
automatically brake moderately or brake
hard. This can help to avoid some very low
speed pedestrian or bicyclist crashes or
reduce pedestrian injury. FPB can automatically brake to detected pedestrians
or bicyclists or bicyclists between 8 km/h
(5 mph) and 80 km/h (50 mph). Automatic
braking levels may be reduced under certain
conditions, such as higher speeds.
If this happens, Automatic Braking may
engage the Electric Parking Brake (EPB) to
hold the vehicle at a stop. Release the EPB.
A firm press of the accelerator pedal will
also release Automatic Braking and the EPB.
{Warning
FPB may alert or automatically brake the
vehicle suddenly in situations where it is
unexpected and undesired. It could falsely
alert or brake for objects similar in shape
or size to pedestrians or bicyclists,
including shadows. This is normal
operation and the vehicle does not need
service. To override Automatic Braking,
firmly press the accelerator pedal, if it is
safe to do so.
Automatic Braking can be disabled through
vehicle settings.To view available settings
from the infotainment screen, touch Settings
> Vehicle > Collision/Detection Systems >
Front Pedestrian Detection.
{Warning
Using AEB or IBA while towing a trailer
could cause you to lose control of the
vehicle and crash. Turn the system to
Alert or Off when towing a trailer.
Cleaning the System
If FPB does not seem to operate properly,
cleaning the outside of the windshield in
front of the rearview mirror may correct the
issue.
Side Blind Zone Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists drivers with
avoiding crashes that occur with moving
vehicles in the side blind zone, or blind spot
areas. When the vehicle is in a forward gear,
the left or right side mirror display will light
up if a moving vehicle is detected in that
blind zone. If the turn signal is activated and
a vehicle is also detected on the same side,
the display will flash as an extra warning
not to change lanes. Since this system is
part of the Lane Change Alert (LCA) system,
read the entire LCA section before using this
feature.

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250 Driving and Operating
Trailer Towing
General Towing Information
Only use towing equipment that has been
designed for the vehicle. Contact your dealer
or trailering dealer for assistance with
preparing the vehicle to tow a trailer. Read
the entire section before towing a trailer.
To tow a disabled vehicle, seeTransporting
a Disabled Vehicle 0317. To tow the vehicle
behind another vehicle such as a motor
home, see Recreational Vehicle Towing
0 318.
Only use unleaded gasoline with an octane
rating of 89 or higher. Using gasoline with a
lower octane rating while towing may
damage the engine and may not be covered
by the vehicle warranty. See Recommended
Fuel 0247.
Driving Characteristics and
Towing Tips
{Warning
You can lose control when towing a
trailer if the correct equipment is not
used or the vehicle is not driven properly.
(Continued)
Warning (Continued)
For example, if the trailer is too heavy or
the trailer brakes are inadequate for the
load, the vehicle may not stop as
expected. You and others could be
seriously injured. The vehicle may also be
damaged, and the repairs would not be
covered by the vehicle warranty. Pull a
trailer only if all the steps in this section
have been followed. Ask your dealer for
advice and information about towing a
trailer with the vehicle.
Driving with a Trailer
Trailering is different than just driving the
vehicle by itself. Trailering means changes in
handling, acceleration, braking, durability,
and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be
used properly.
The following information has many
time-tested, important trailering tips and
safety rules. Many of these are important
for your safety and that of your passengers.
Read this section carefully before pulling a
trailer. When towing a trailer:
.Become familiar with and follow all state
and local laws that apply to trailer
towing. These requirements vary from
state to state.
.State laws may require the use of
extended side view mirrors. If your
visibility is limited or restricted while
towing, install extended side view mirrors,
even if not required.
.Do not tow a trailer during the first
800 km (500 mi) of vehicle use to prevent
damage to the engine, axle, or other
parts.
.GM recommends performing an oil
change to the vehicle before heavy
towing.
.Do not drive over 80 km/h (50 mph) and
do not make starts at full throttle during
the first 800 km (500 mi) of trailer
towing.
.Vehicles can tow in D (Drive). If the
transmission downshifts too often, a
lower gear may be selected using Manual
Mode. See
Manual Mode 0185.