eco CADILLAC XT4 2024 Manual Online

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
17180837) - 2024 - CRC - 2/28/23
Driving and Operating 193
the first detent toward RES+. To increase
speed to the next 5 km/h (5 mph) mark on
the speedometer, press the thumbwheel up
to the second detent.
SET−:Move the thumbwheel down briefly
to set the speed and activate cruise control.
If the cruise control is already active, use to
decrease vehicle speed. To decrease speed
by 1 km/h (1 mph), move the thumbwheel
down toward SET−. To decrease speed to the
next 5 km/h (5 mph) mark on the
speedometer, move the thumbwheel down
toward SET− to the second detent.
*:Press to disengage cruise control
without erasing the set speed from memory.
Setting Cruise Control
If
Jis on when not in use, SET− or RES+
could get pressed and go into cruise when
not desired. Keep
Joff when cruise is not
being used.
1. Press
J.
2. Get up to the desired speed.
3. Move the thumbwheel down to SET−. The desired set speed briefly appears in
the instrument cluster.
4. Remove your foot from the accelerator. When the cruise control has been set to the
desired speed, a green cruise control
indicator appears on the instrument cluster
and a cruise set speed message appears on
the Head-Up Display (HUD), if equipped.
Resuming a Set Speed
If the cruise control is set at a desired speed
and then the brakes are applied or
*is
pressed, the cruise control is disengaged
without erasing the set speed from memory.
Once the vehicle speed reaches about
40 km/h (25 mph) or more, move the
thumbwheel up toward RES+ briefly. The
vehicle returns to the previous set speed.
Increasing Speed While Using Cruise Control
If the cruise control system is already
activated:
.Move the thumbwheel up toward RES+
until the desired speed is reached, then
release it.
.To increase vehicle speed in small
increments, move the thumbwheel up
toward RES+ briefly. For each press, the
vehicle goes about 1 km/h (1 mph) faster.
.To increase vehicle speed in larger
increments, move the thumbwheel up
toward 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 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 Using Cruise Control
If the cruise control system is already
activated:
.Move the thumbwheel down toward SET−
until the desired lower speed is reached,
then release it.
.To decrease the vehicle speed in small
increments, move the thumbwheel down
toward SET− briefly. For each press, the
vehicle goes about 1 km/h (1 mph) slower.
.To decrease the vehicle speed in larger
increments, move the thumbwheel down
toward 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 cruise control system may automatically
brake to slow the vehicle down.

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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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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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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-
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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

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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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)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 213
Attention to the Road
{Warning
Super Cruise is a driver assistance system
and cannot accurately detect or predict
all situations. Super Cruise is not a crash
avoidance system. To prevent serious
injury or death, you must supervise the
driving task and monitor the road
conditions. You may need to respond to
traffic events by steering, braking,
or accelerating. SeeDefensive Driving
0 164. Super Cruise also cannot
determine whether you are awake,
asleep, impaired, or properly focused on
safe driving. The vehicle could crash into
other vehicles, drive out of the lane,
or drive off the road. Complete attention
is always required while driving, even
while using Super Cruise. Be prepared to
take over steering or apply the brakes at
any time.
{Warning
To prevent serious injury or death, be
alert and pay special attention when
passing highway exits, entrances, and
crossings with Super Cruise, and be ready
to take control of the vehicle when
necessary. Changes in lane markings
around exits and entrances can
momentarily cause Super Cruise to not
detect the correct lane. If this occurs,
Super Cruise may attempt steering inputs
to bring the vehicle back into the correct
lane and, in rare circumstances, could
over-correct and cause the vehicle to
momentarily cross into a lane next to
your vehicle unless you manually steer to
maintain your lane position. The Driver Attention System (DAS) on the
steering column continually monitors driver
head and eye position to estimate driver
attention to the road. The camera does not
record or share pictures, audio, or video.
Sunglasses, hats, or other types of clothing
that change the shape of the head may
interfere with camera performance. To
improve camera performance, raise or lower
the steering wheel, or change the seat
position.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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214 Driving and Operating
Pay close attention to the road ahead to avoid these three increasing alerts:First Alert
.If the steering wheel light bar flashes green, the system has detected that your head and eyes may not
be directed toward the road.
.The flashing will stop when the system detects that your head and eyes appear to be directed toward
the road.
Second Alert
.If the steering wheel light bar flashes green for too long, Super Cruise will alert the driver to take
control of steering immediately by flashing the light bar red. Also, either beeps will sound or the Safety
Alert Seat will vibrate. To view available settings from the infotainment home screen, touch Settings >
Vehicle > Collision/Detection Systems.
.Take over steering, then Super Cruise may disengage or the steering wheel light bar will flash blue to
indicate the need for a driver override. Do not take hands off the steering wheel until the steering
wheel light bar is green.
.To re-engage Super Cruise after disengagement, pressZon the steering wheel. See “Using Super
Cruise” previously in this section.
Third Alert
.If the steering wheel light bar flashes red for too long, a voice command will tell you to take control of
the vehicle.
.Take control of the steering immediately; ACC and Super Cruise will disengage.
.A DIC message will indicate that Super Cruise is locked out. Super Cruise cannot be re-engaged until the
vehicle is turned off and back on.
.Continued failure to take over steering will cause the vehicle to brake to a stop and OnStar will be
called. The brake lamps and hazard warning flashers will come on.
.Take control of the vehicle and continue driving.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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218 Driving and Operating
Disengaging Super Cruise
There are two ways to disengage Super
Cruise:
.PressZwhile your hands are on the
steering wheel. The Super Cruise steering
will disengage.
.Press the brake pedal while your hands
are on the steering wheel. Both Super
Cruise steering and Adaptive Cruise
Control will disengage. Super Cruise Messages
If the Super Cruise light
Zdoes not
appear, press
Zon the steering wheel to
display a DIC message as to why the system
is unavailable.
Immediately after a disengagement,
pressing
Zwithin 10 seconds will display a
DIC message with the reason for Super
Cruise disengagement.