2024 CADILLAC XT4 Cruise

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
196 Driving and Operating
.Press and hold the thumbwheel down to
SET−to decrease the set speed by 5 km/h
(5 mph). Release the thumbwheel when
the desired set speed is displayed in the
instrument cluster.
When using Speed Limiter in Auto mode,
there is a predefined minimum allowed
value of offset beyond which the set speed
cannot be decreased.
Accept or Decline Automatic Set Speed
Changes (Auto)
When Speed Limiter is in Auto mode, is
active, and a new speed limit sign is
detected, it will propose a new set speed
based on the detected speed limit sign. The
proposed new set speed will be displayed as
a message in the instrument cluster.
.To accept the new set speed, briefly
move the thumbwheel down to SET− and
release it.
.To decline the new set speed, briefly
move the thumbwheel up to RES+ and
release it.
If you do not accept or decline the new
proposed set speed, there is no change to
the set speed. Conditions Affecting Automatic Speed
Limiter (Auto)
.There are changes in brightness, such as
entering and exiting tunnels, bridges, and
overpasses.
.There are low sun angles.
.Ambient lighting is poor in the evening or
early morning.
.There are multiple changes in brightness
or there are shadows along the roadway.
.There are conditions associated with low
visibility such as fog, rain, snow, or road
spray.
.The on-board camera’s view of the road is
blocked by leaves, snow, or other debris.
If Automatic Speed Limiter becomes
temporarily unavailable, change to
Manual mode.
Resuming Speed Limiter
If Speed Limiter was active but then
*was
pressed, Speed Limiter can be resumed using
the previous set speed. Briefly move the
thumbwheel up to RES+ and release it to
activate Speed Limiter using the previous set
speed. If Speed Limiter was turned off because
cruise control, ACC, or Super Cruise was
turned on, to use Speed Limiter again:
1. Turn off cruise control, ACC, or Super Cruise.
2. On the infotainment home screen, touch Controls > Drive (Drive & Park) > Speed
Limiter.
3. Select Manual or Auto.
Overriding Speed Limiter
When Speed Limiter is active, the set speed
can be temporarily overridden only when
you fully apply the accelerator pedal. You
can control vehicle acceleration again when
the vehicle speed is below the set speed.
Turning Off Speed Limiter
To turn off Speed Limiter, from the
infotainment home screen, touch Controls >
Drive (Drive & Park) > Speed Limiter > Off.Adaptive Cruise Control
(Advanced)
If equipped with Adaptive Cruise Control
(ACC), it allows the driver to select the
cruise control set speed and following gap.
Read this entire section before using this
system. The following gap is the following

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 197
time between your vehicle and a vehicle
detected directly ahead in your path,
moving in the same direction. If no vehicle
is detected in your path, ACC works like
regular cruise control. ACC uses camera and
radar sensors. SeeRadio Frequency
Statement 0348.
If a vehicle is detected in your path, ACC can
apply acceleration or limited, moderate
braking to maintain the selected following
gap. To disengage ACC, apply the brake.
If ACC is controlling your vehicle speed
when the Traction Control System (TCS) or
StabiliTrak/Electronic Stability Control (ESC)
system activates, the ACC may automatically
disengage. See Traction Control/Electronic
Stability Control 0189. When road
conditions allow ACC to be safely used, the
ACC can be turned back on.
Disabling the TCS or StabiliTrak/ESC system
will disengage and prevent engagement
of ACC. ACC can reduce the need for you to
frequently brake and accelerate, especially
when used on expressways, freeways, and
interstate highways. When used on other
roads, you may need to take over the
control of braking or acceleration more
often.
ACC automatically slows the vehicle down
while navigating the curve and may increase
speed out of the curve, but will not exceed
the set speed.
{Warning
ACC has limited braking ability and may
not have time to slow the vehicle down
enough to avoid a collision with another
vehicle you are following. This can occur
when vehicles suddenly slow or stop
ahead, or enter your lane. Also see
“Alerting the Driver”
in this section.
Complete attention is always required
while driving and you should be ready to
take action and apply the brakes. See
Defensive Driving 0164.
{Warning
ACC will not detect or brake for children,
pedestrians, animals, or other objects.
Do not use ACC when:
.On winding and hilly roads or when
the sensors are blocked by snow, ice,
or dirt. The system may not detect a
vehicle ahead. Keep the entire front of
the vehicle clean.
.Visibility is poor due to rain, snow,
fog, dirt, insect residue, or dust; when
other foreign objects obscure the
camera and/or radar; or when the
vehicle in front or oncoming traffic
causes additional environmental
obstructions, such as road spray. ACC
performance is limited under these
conditions.
.On slippery roads where fast changes
in tire traction can cause excessive
wheel slip.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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198 Driving and Operating
J:Press to turn the system on or off. The
indicator turns white on the instrument
cluster when ACC is turned on.
RES+ : Press briefly to resume the previous
set speed or to increase vehicle speed if ACC
is already activated. To increase speed by
1 km/h (1 mph), press RES+ to the first
detent. To increase speed to the next
5 km/h (5 mph) mark on the speedometer,
press RES+ to the second detent.
SET– :Press briefly to set the speed and
activate ACC or to decrease vehicle speed if
ACC is already activated. To decrease speed
by 1 km/h (1 mph), press SET− to the first
detent. To decrease speed to the next
5 km/h (5 mph) mark on the speedometer,
press SET− to the second detent.
*:Press to disengage ACC without erasing
the selected set speed.
[: Press to select a following gap time
(or distance) setting for ACC of Far, Medium,
or Near.
Switching Between ACC and Regular Cruise
Control
To switch between ACC and regular cruise
control, press and hold
*. A Driver
Information Display (DIC) message displays.
See Vehicle Messages 0118.
ACC IndicatorRegular Cruise Control
Indicator
When ACC is engaged, a green
\
indicator will be lit on the instrument cluster
and the following gap will be displayed.
When the regular cruise control is engaged,
a green
Jindicator will be lit on the
instrument cluster; the following gap will
not display. It is recommended to switch from ACC to
regular Cruise Control when there are no
vehicles ahead of your vehicle.
When the vehicle is turned on, the cruise
control mode will be set to the last mode
used before the vehicle was turned off.
{Warning
Always check the cruise control indicator
on the instrument cluster to determine
which mode cruise control is in before
using the feature. If ACC is not active, the
vehicle will not automatically brake for
other vehicles, which could cause a crash
if the brakes are not applied manually.
You and others could be seriously injured
or killed.
Setting Adaptive Cruise Control
If
Jis on when not in use, it could get
pressed and go into cruise when not desired.
Keep
Joff when cruise is not being used.
Select the set speed desired for cruise. This
is the vehicle speed when no vehicle is
detected in its path.

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Driving and Operating 199
ACC will not set at a speed less than
25 km/h (15 mph), although it can be
resumed when driving at lower speeds. The
minimum allowable set speed is 25 km/h
(15 mph).
To set ACC while moving:1. Press
J.
2. Get up to the desired speed.
3. Press and release SET–.
4. Remove your foot from the accelerator.
After ACC is set, it may immediately apply
the brakes if a vehicle ahead is detected
closer than the selected following gap.
ACC can also be set while the vehicle is
stopped if ACC is on and the brake pedal is
applied.
The ACC indicator displays on the
instrument cluster and Head-Up Display
(HUD), if equipped. When ACC is turned on,
the indicator will be lit white. When ACC is
engaged, the indicator will turn green. Be mindful of speed limits, surrounding
traffic speeds, and weather conditions when
selecting the set speed.
Resuming a Set Speed
If the ACC is set at a desired speed and then
the brakes are applied, ACC is disengaged
without erasing the set speed from memory.
To begin using ACC again, press RES+ up
briefly.
.If the vehicle is moving more than 5 km/h
(3 mph), it returns to the previous set
speed.
.If the vehicle is stopped with the brake
pedal applied, press RES+ and release the
brake pedal. ACC will hold the vehicle
until RES+ or the accelerator pedal is
pressed.
A green ACC indicator and the set speed
display on the instrument cluster. The
vehicle ahead indicator may be flashing if a
vehicle ahead was present and moved. See
“Approaching and Following a Vehicle” later
in this section.
Once ACC has resumed, if there is no vehicle
ahead, if the vehicle ahead is beyond the
selected following gap, or if the vehicle has
exited a sharp curve, then the vehicle speed
will increase to the set speed. Increasing Speed While ACC is at a Set Speed
If ACC is already activated, do one of the
following:
.Use the accelerator to get to the higher
speed. Briefly press and release SET–
and
release the accelerator pedal. The vehicle
will now cruise at the higher speed.
When the accelerator pedal is pressed,
ACC will not brake because it is
overridden. While overridden, the ACC
indicator will turn blue on the instrument
cluster and heads up display, if equipped.
.Press and hold RES+ until the desired set
speed is displayed, then release it.
.To increase speed in small increments,
press RES+ to the first detent. For each
press, the vehicle goes 1 km/h (1 mph)
faster.
.To increase speed in larger increments,
press RES+ to the second detent. For each
press, the vehicle speed increases to the
next 5 km/h (5 mph) mark on the
speedometer.
The set speed can also be increased while
the vehicle is stopped.
.If stopped with the brake applied, press
RES+ until the desired set speed is
displayed.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
200 Driving and Operating
.If ACC is holding the vehicle at a stop and
there is another vehicle directly ahead,
pressing RES+ will increase the set speed.
.Pressing RES+ when there is no longer a
vehicle ahead or the vehicle ahead is
pulling away and the brake is not applied
will cause the ACC to resume.
When it is determined that there is no
vehicle ahead or the vehicle ahead is beyond
the selected following gap, then the vehicle
speed will increase to the set speed.
The speedometer reading can be displayed
in either English or metric units. See
Instrument Cluster 094. The increment
value used depends on the units displayed.
Reducing Speed While ACC is at a Set Speed
If ACC is already activated, do one of the
following:
.Use the brake to get to the desired lower
speed. Release the brake and press SET– .
The vehicle will now cruise at the lower
speed.
.Press and hold SET– until the desired
lower speed is reached, then release it.
.To decrease speed in smaller increments,
press SET− to the first detent. For each
press, the vehicle goes about 1 km/h
(1 mph) slower.
.To decrease speed in larger increments,
press SET− to the second detent. For each
press, the vehicle speed decreases to the
next 5 km/h (5 mph) mark on the
speedometer.
The set speed can also be decreased while
the vehicle is stopped.
.If stopped with the brake applied, press
or hold SET− until the desired set speed is
displayed.
Selecting the Follow Distance Gap
When a slower moving vehicle is detected
ahead within the selected following gap,
ACC will adjust the vehicle's speed and
attempt to maintain the follow distance gap
selected.
Press
[on the steering wheel to adjust
the following gap. Each press cycles the gap
button through three settings: Far, Medium,
or Near.
When pressed, the current gap setting
displays briefly on the instrument cluster
and HUD, if equipped. The gap setting will
be maintained until it is changed.
Far Gap Setting
Medium Gap Setting

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Driving and Operating 203
Warning (Continued)
ahead changing lanes. Your vehicle may
not stop and could cause a crash. Use
caution when using ACC. Your complete
attention is always required while driving
and you should be ready to take action
and apply the brakes.
Irregular Objects Affecting ACC
ACC may have difficulty detecting the
following objects:
.Vehicles with cargo extending from the
back end.
.Non-standard shaped vehicles, such as
vehicle transport, vehicles with a side car
fitted, or horse carriages.
.Objects that are close to the front of your
vehicle.
ACC Automatically Disengages
ACC may automatically disengage and the
driver will need to manually apply the
brakes to slow the vehicle when:
.The sensors are blocked.
.The Traction Control System (TCS) or
StabiliTrak/ESC system has activated or
been disabled.
.There is a fault in the system.
.The radar falsely reports blockage when
driving in a desert or remote area with
no other vehicles or roadside objects.
A DIC message may display to indicate
that ACC is temporarily unavailable.
The ACC indicator will turn white when ACC
is no longer active.
In some cases, when ACC is temporarily
unavailable, regular cruise control may be
used. See “Switching Between ACC and
Regular Cruise Control” in this section.
Always consider driving conditions before
using either cruise control system.
Notification to Resume ACC
ACC will maintain a follow gap behind a
detected vehicle and slow your vehicle to a
stop behind that vehicle.
If the stopped vehicle ahead has driven
away and ACC has not resumed, the vehicle
ahead indicator will flash as a reminder to
check traffic ahead before proceeding. In
addition, the left and right sides of the
Safety Alert Seat will pulse three times,
or three beeps will sound. To view a list of
available options, on the infotainment home screen, select Settings > Vehicle > Collision/
Detection Systems > Alert Type or Safety
Alert Seat Vibrations.
When the vehicle ahead drives away, ACC
resumes automatically if the stop was brief.
If necessary, press RES+ or the accelerator
pedal to resume ACC. If stopped for more
than two minutes or if the driver door is
opened and the driver seat belt is
unbuckled, the ACC automatically applies the
Electric Parking Brake (EPB) to hold the
vehicle. The EPB status light will turn on.
See
Electric Parking Brake 0187. To release
the EPB, press the accelerator pedal.
A DIC warning message may display
indicating to shift to P (Park) before exiting
the vehicle. See Vehicle Messages 0118.
{Warning
If ACC has stopped the vehicle, and if ACC
is disengaged, turned off, or canceled, the
vehicle will no longer be held at a stop.
The vehicle can move. When ACC is
holding the vehicle at a stop, always be
prepared to manually apply the brakes.

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Driving and Operating 205
objects when entering or exiting a curve.
This is normal operation. The vehicle does
not need service.
Other Vehicle Lane Changes
ACC will not detect a vehicle ahead until it
is completely in the lane. The brakes may
need to be manually applied.
Objects Not Directly in Front of Your Vehicle
The detection of objects in front of the
vehicle may not be possible if:
.The vehicle or object ahead is not within
your lane.
.The vehicle ahead is shifted, not centered,
or is shifted to one side of the lane.
Driving in Narrow Lanes
Vehicles in adjacent traffic lanes or roadside
objects may be incorrectly detected when
located along the roadway. Do Not Use ACC on Hills
Do not use ACC when driving on steep hills
as ACC may not detect a vehicle ahead.
Towing with ACC
If equipped when, towing a trailer, ACC
driving characteristics such as following gap,
acceleration rates and braking rates may be
modified to provide a better towing
experience.
ACC is not recommended with vehicles
equipped with aftermarket trailer brake
controllers. Aftermarket trailer brake
controllers may not activate the trailer
brakes while ACC is engaged. Aftermarket
trailer brake controller manual engagement
will not disable ACC.
ACC may be used when towing a trailer
when trailer attached is within GM-approved
allowable size and weight limits. See
Trailer
Towing 0253.
Use Tow/Haul mode when driving down
steep hills or mountain grades, or when
hauling heavy loads. See Driver Mode
Control 0190.
ACC maintains the set speed when driving
uphill and downhill while towing a trailer.
However, ACC may make a slight change to
the cruise speed while driving on moderate
hills if the combined vehicle and trailer
weight is close to the maximum Gross
Combined Weight Rating (GCWR). See Trailer
Towing 0253. This is normal ACC operation
and is necessary to maintain the set speed.
ACC may disengage if it detects that the
brake temperature exceeds the normal
range.
Disengaging ACC
There are three ways to disengage ACC:
.Step lightly on the brake pedal.
.Press*.
.PressJ.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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206 Driving and Operating
Erasing Speed Memory
The cruise control set speed is erased from
memory if
Jis pressed or if the ignition is
turned off.
Weather Conditions Affecting ACC
System operation may be limited under
snow, heavy rain, or road spray conditions.
{Warning
Camera visibility may be limited and the
ACC system may not work properly if the
windshield is not clear. Do not use ACC if
moisture is present on the inside of the
windshield or the windshield washer is
used in cold weather. Turn on the front
defroster and make sure the windshield is
clear before using ACC. Before driving,
check that the windshield wipers are in
good condition and replace them if worn.
Accessory Installations and Vehicle
Modifications
Do not install or place any object around
the front camera windshield area that would
obstruct the front camera view. Do not install objects on top of the vehicle
that overhang and obstruct the front
camera, such as a canoe, kayak, or other
items that can be transported on a roof rack
system. See
Roof Rack System 085.
Do not modify the hood, headlamps, or fog
lamps, as this may limit the camera’s ability
to detect an object.
Cleaning the Sensing System
The camera sensor on the windshield behind
the rearview mirror and the radar sensors
on the front of the vehicle can become
blocked by snow, ice, dirt, or mud. These
areas need to be cleaned for ACC to operate
properly.
If ACC will not operate, regular cruise control
may be available. See “Switching Between
ACC and Regular Cruise Control” in this
section. Always consider driving conditions
before using either cruise control system.
For cleaning instructions, see “Washing the
Vehicle” underExterior Care 0321.
Super Cruise
If equipped, Super Cruise can steer to
maintain lane position under certain
conditions on Super Cruise-enabled roads. An active OnStar or connected service plan
that includes Emergency Services is required
to use Super Cruise.
Super Cruise can also steer to perform a
lane change under certain conditions on
Super Cruise-enabled roads. A lane change
can be initiated by the driver using the turn
signal lever.
The Super Cruise System may initiate a lane
change maneuver in following scenarios:
.To pass slower traffic
.When the current lane is ending ahead
.To return to the initial lane
.To provide space for vehicles merging
from an ending lane
See “Super Cruise Lane Change” later in this
section and Turn and Lane-Change Signals
0 127.
{Warning
Super Cruise can only assist to maintain
lane position when driving on compatible
highways. You must supervise the driving
task and monitor the freeway conditions.
You may need to respond to traffic
(Continued)