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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) -
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288 Driving and Operating
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). Subsequent
presses cycle the gap button
through three settings: Far,
Medium, or Near. The gap
setting will be maintained until
it is changed.
Since each gap setting
corresponds to a following
time (Far, Medium, or Near),
the following distance will vary
based on vehicle speed. The
faster the vehicle speed, the
further back your vehicle will
follow a vehicle detected
ahead. Consider traffic and
weather conditions when
selecting the following gap. The range of selectable gaps
may not be appropriate for all
drivers and driving conditions.
Changing the gap setting
automatically changes the
alert timing sensitivity (Far,
Medium, or Near) for the
Forward Collision Alert (FCA)
feature. See Forward Collision
Alert (FCA) System
0326.
Alerting the Driver
With Head-Up Display
Without Head-Up Display If ACC is engaged, driver
action may be required when
ACC cannot apply sufficient
braking because of
approaching a vehicle too
rapidly.
When this condition occurs,
the collision alert symbol will
flash on the windshield. Either
eight beeps will sound from
the front, or both sides of the
Safety Alert Seat will pulse
five times. Touch the Settings
icon on the infotainment home
page. Select
“Vehicle”to
display the list of available
options and select “Collision/
Detection Systems”.
See Defensive Driving 0240.
Approaching and Following a
Vehicle

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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.

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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.

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298 Driving and Operating
To engage:1. Press
Jto turn on ACC.
Make sure the white
\
indicator displays in the
instrument cluster. See
Adaptive Cruise Control
(Advanced) 0283.
2. Center the vehicle in the lane.
3. When Super Cruise is available, the white
^will
display in the instrument
cluster.
4. Press
]to engage both
Super Cruise and ACC. ACC will set the speed at
the current vehicle speed.
If ACC has a previously set
speed, it may resume at
that speed.
5. When engaged, the steering wheel light bar,
^, and\will display
green.
When Super Cruise is
engaged, when traffic and
other conditions and laws
permit, and when it is safe to
do so, your hands can be
taken off the steering wheel.
Always pay attention to the
road and the operation of the
vehicle. Always monitor and be
attentive of surrounding
traffic, including vehicles that
may cross the road in front
of you.
Super Cruise steering can be
overridden with manual
steering at any time. When
Super Cruise is engaged,
always be prepared to take immediate action
—including
steering, accelerating, and
braking quickly, if necessary.
Steering Manually and
Changing Lanes
The vehicle can always be
manually steered, even with
Super Cruise engaged; for
example, when changing lanes.
When the steering wheel is
moved manually, the steering
wheel light bar pulses blue and
^on the instrument cluster
turns blue to indicate Super
Cruise is not steering the
vehicle.
When ready to allow Super
Cruise to resume steering
again, position the vehicle in
the center of the lane, hold the
steering wheel until the
steering wheel light bar turns
green, and then release the
steering wheel when it is safe
to do so.
Super Cruise does not
respond to vehicles in other
lanes near your vehicle.

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Driving and Operating 299
{Warning
To help prevent crashes
before making a lane
change:
.Always check mirrors.
.Glance over your shoulder.
.Use the turn signals.
Take Over Alert
{Warning
Super Cruise will not
maintain the vehicle’s speed
while the steering wheel
light bar is flashing red.
If the steering wheel light
bar flashes red, immediately
resume manual steering to
prevent serious injury or
death. If you do not resume
manual steering, the vehicle
will begin to slow in the
same lane and eventually
come to a complete stop on
the road. To begin steering manually,
hold the steering wheel firmly
(with both hands) using the
highlighted regions as shown
in the picture below.
Any time the steering wheel
light bar flashes red, resume
manual steering immediately.
The instrument cluster light
^, will also turn red and a
message will display in the
Driver Information Center
(DIC). In addition, beeps will
sound, or the Safety Alert
Seat will vibrate. To view
available settings from the
infotainment screen, touch Settings > Vehicle > Collision/
Detection Systems. After you
begin steering manually, then
Super Cruise will disengage.
The red flashing steering
wheel light bar could occur
under any of the following
conditions:
.Lane markings are poor or
visibility is limited.
.The Driver Attention System
(DAS) does not detect that
the driver's head and eyes
are directed toward
the road.
.ACC is canceled.
.The vehicle is on a tight
curve, or the lanes are too
wide, or the vehicle goes into
a curve too fast.
.The compatible road ends.
.The vehicle is approaching
an intersection controlled by
a traffic light, stop sign,
or other traffic control
device.
.A Super Cruise system fault
occurs.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
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304 Driving and Operating
Super Cruise Indicator Light
Summary
The steering wheel light bar
and instrument cluster light
provide the following
important information about
Super Cruise operation:

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
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Driving and Operating 305
Steering WheelLight Bar Instrument Cluster
Light Super Cruise Description
Off Off Super Cruise is off. There is no automatic
steering. Operate the vehicle manually.
Off White Super Cruise is available and can be engaged.
Solid Green Solid Green Super Cruise is steering. Pay attention to the
road and vehicle operation.
Pulsing Blue Solid Blue Super Cruise is not steering. Operate the vehicle
manually. See
“Steering Manually and Changing
Lanes” previously in this section.
Flashing Green Solid Green Super Cruise has detected you are not paying
sufficiently close attention to the road. Pay
attention to the road. See
“Attention to the
Road” previously in this section.
Flashing Red Solid Red Take over steering immediately. Super Cruise will
disengage. See
“Take Over Alert” previously in
this section.