brake CADILLAC XT6 2023 Workshop Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 285
Switching Between ACC and
Regular Cruise Control
To switch between ACC and
regular cruise control, press
and hold
*. A Driver
Information Center (DIC)
message displays. See Vehicle
Messages 0151.
ACC Indicator
(Base Level)ACC Indicator (Uplevel)
Regular Cruise Control Indicator When ACC is engaged, a
green
oindicator will be lit on
the instrument cluster and the
following gap will be displayed.
When the regular cruise
control is engaged, a green
J
indicator will be lit on the
instrument cluster; the
following gap will not display.
It is recommended to switch
from ACC to regular cruise
control only, 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
(Continued)
Warning (Continued)
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
ois on when not in use,
SET-/RES+ could be pressed
by mistake and engage ACC
when not desired. Keep
ooff
when cruise is not being used.
Select the set speed desired
for ACC. This is the vehicle
speed when no vehicle is
detected in its path.
While the vehicle is moving,
ACC will not set at a speed
below a minimum speed,
although it can be resumed.
If equipped with Super Cruise,
this minimum speed is 5 km/h
(3 mph), otherwise, it is

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
286 Driving and Operating
25 km/h (15 mph). The minimum
allowable set speed is 25 km/h
(15 mph).
To set ACC while moving:1. Press
o.
2. Get up to the desired speed.
3. Press and release SET–.
4. Remove your foot from the accelerator pedal.
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, the 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, the
vehicle speed will increase to
the set speed under the
following conditions:
.There is no vehicle ahead.
.The vehicle ahead is beyond
the selected following gap.
.The vehicle speed is not
being limited because of a
sharp turn.
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

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 287
indicator will turn blue on the
instrument cluster and
Head-Up Display (HUD),
if equipped.
.Press and hold RES+ until
the desired set speed
appears on the display, then
release it.
.To increase vehicle speed in
small increments, press
RES+ to the first detent. For
each press, the vehicle goes
1 km/h or (1 mph) faster.
.To increase vehicle 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.
.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 select following gap, then
the vehicle speed will increase
to the set speed.
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
displayed, then release it.
.To decrease the vehicle
speed in smaller increments,
press SET− to the first
detent. For each press, the
vehicle goes 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

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 289
The vehicle ahead indicator is
in the instrument cluster and
HUD display (if equipped).
It only displays when a vehicle
is detected in your vehicle’s
path moving in the same
direction. If this symbol is not
displaying, ACC will not
respond to or brake for
vehicles ahead.
ACC automatically slows the
vehicle down and adjusts
vehicle speed to follow a
detected vehicle ahead at the
selected follow gap. The
vehicle speed increases or
decreases to follow a
detected vehicle in front of
your vehicle when that vehicle
is traveling slower than your
vehicle set speed. It may apply
limited braking, if necessary.
When braking is active, the
brake lamps will come on. The
automatic braking may feel or
sound different than if the
brakes were applied manually.
This is normal.Passing a Vehicle While
Using ACC
If the set speed is high
enough, and the left turn
signal is used to pass a vehicle
ahead in the selected
following gap, ACC may assist
by gradually accelerating the
vehicle prior to the lane
change.
{Warning
When using ACC to pass a
vehicle or perform a lane
change, the following
distance to the vehicle being
passed may be reduced.
ACC may not apply
sufficient acceleration or
braking when passing a
vehicle or performing a lane
change. Always be ready to
manually accelerate or brake
to complete the pass or lane
change.
Stationary or Very
Slow-Moving Objects
{Warning
ACC may not detect and
react to stopped or
slow-moving vehicles ahead
of you. For example, the
system may not brake for a
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when
a vehicle suddenly appears
due to a vehicle 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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
290 Driving and Operating
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 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.
.A DIC message may display
to indicate that ACC is
temporarily unavailable.
The ACC active symbol will
turn white when ACC is no
longer active.
In some cases, when ACC will
not activate, regular cruise
control may be used. See
“Switching Between ACC and
Regular Cruise Control”
previously in this section.
Always consider driving
conditions before using either
cruise control system. Notification to Resume ACC
ACC will maintain a following
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. Touch the
Settings icon on the
infotainment home page.
Select
“Vehicle” to display the
list of available options and
select ”Alert Type” and
“Adaptive Cruise Go Notifier”
in “Collision/Detection
Systems”.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 291
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, ACC automatically
applies the Electric Parking
Brake (EPB) to hold the
vehicle. The Electric Parking
Brake light will turn on. See
Electric Parking Brake0274.
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
0 151.{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.
{Warning
Leaving the vehicle without
placing it in P (Park) can be
dangerous. Do not leave the
vehicle while it is being held
at a stop by ACC. Always
place the vehicle in P (Park)
and turn off the ignition
before leaving the vehicle. ACC Override
If using the accelerator pedal
while ACC is active, the ACC
indicator turns blue on the
instrument cluster and in the
HUD (if equipped) indicating
ACC braking will not occur.
ACC will resume operation
when the accelerator pedal is
not being pressed.
{Warning
The ACC will not
automatically apply the
brakes if your foot is resting
on the accelerator pedal.
You could crash into a
vehicle ahead of you.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
292 Driving and Operating
Curves in the Road
{Warning
On curves, ACC may not
detect a vehicle ahead in
your lane. You could be
startled if the vehicle
accelerates up to the set
speed, especially when
following a vehicle exiting or
entering exit ramps. You
could lose control of the
vehicle or crash. Do not use
ACC while driving on an
entrance or exit ramp.
Always be ready to use the
brakes if necessary.
{Warning
On curves, ACC may
respond to a vehicle in
another lane, or may not
have time to react to a
vehicle in your lane. You
could crash into a vehicle
ahead of you, or lose control(Continued)
Warning (Continued)
of your vehicle. Give extra
attention in curves and be
ready to use the brakes if
necessary. Select an
appropriate speed while
driving in curves.
ACC may operate differently
in a sharp curve. It may reduce
the vehicle speed if the curve
is too sharp.
If equipped, the curve speed
control indicator
bmay
illuminate green when ACC is
actively controlling the vehicle
speed and detects a sharp
curve on the road ahead.
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.
When following a vehicle and
entering a curve, ACC may not
detect the vehicle ahead and
accelerate to the set speed.
When this happens, the
vehicle ahead indicator will not
appear.
ACC may detect a vehicle that
is not in your lane and apply
the brakes.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 293
ACC may occasionally provide
an alert and/or braking that is
considered unnecessary.
It could respond to vehicles in
different lanes, signs,
guardrails, and other
stationary 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.
Do Not Use ACC When
Towing a Trailer
ACC should not be used when
towing a trailer.
Disengaging ACC
There are three ways to
disengage ACC:
.Step lightly on the brake
pedal.
.Press*.
.Presso.
Erasing Speed Memory
The cruise control set speed is
erased from memory if
ois
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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
300 Driving and Operating
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. See
Defensive Driving0240.
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
(Continued)
Warning (Continued)
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(Continued)
Warning (Continued)
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 XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Driving and Operating 301
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 screen,
touch Settings > Vehicle > Collision/Detection Systems.
.Take over steering, then Super Cruise will disengage.
.To re-engage Super Cruise, press]. 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 next ignition cycle.
.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.