Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
232 DRIVING AND OPERATING
Be mindful of speed limits,
surrounding traffic speeds, and
weather conditions when selecting the
set speed.
Resuming a Set Speed
If 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, 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
Do one of the following:
.
Use the accelerator to get to the
higher speed. Press 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. The ACC
indicator will turn blue on the
instrument panel and heads up
display, if equipped
. Press and hold RES+ until the
desired set speed is displayed,
then release it.
. To increase speed in smaller
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.
. 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 will cause ACC to
resume.
Reducing Speed While ACC Is at a
Set Speed
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.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
234 DRIVING AND OPERATING
Approaching and Following a
Vehicle
The vehicle ahead indicator is on the
instrument cluster and HUD display.
This indicator only displays when a
vehicle is detected in your vehicle’s
path moving in the same direction.
If this indicator 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 the vehicle in front at the
selected follow gap. The vehicle speed
increases or decreases to follow the
vehicle in front of you, but will not
exceed the set speed. It may apply
limited braking, if necessary. When
braking is active, the brake lamps will
come on. The automatic braking mayfeel or sound different than if the
brakes were applied manually. This is
normal.
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.
ACC Automatically Disengages
ACC may automatically disengage and
you will need to manually apply the
brakes to slow the vehicle if:
.
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 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.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 235
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. See
“Alert Type”and “Adaptive Cruise Go
Notifier” in“Collision/Detection
Systems” underVehicle Personalization
0 157.
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 0218.
To release the EPB, press the
accelerator pedal. A DIC warning message may display
indicating to shift to P (Park) before
exiting the vehicle.
{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, to indicate that
automatic 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.
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 (Continued)
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
236 DRIVING AND OPERATING
Warning (Continued)
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
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.
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.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
240 DRIVING AND OPERATING
Warning (Continued)
.Not on a road shoulder,
service drive, or under an
elevated freeway.
. Not in tunnels.
. Not when towing a trailer.
. Not in a freeway exit lane.
When Super Cruise is Available
Super Cruise Indicator
Super Cruise is designed to operate
only when:
. ACC is on. See Adaptive Cruise
Control 0229.
. Forward Automatic Braking is on.
See Forward Automatic Braking
(FAB) 0264.
. Teen Driver is not active. .
The GPS detects the vehicle is on
a limited access freeway.
. Both the camera and the radar
sensors are functioning and not
covered, obstructed, or damaged.
. The Driver Attention System
(DAS) detects the driver's head
and eyes are directed toward the
freeway.
. The lane markings are clearly
visible and able to be detected by
the system.
Poor Conditions
Poor Conditions
Using Super Cruise
{Warning
To prevent serious injury or death: . Always check that Super
Cruise is available
^before
pressing
].
. Only remove your hands from
the steering wheel if the
steering wheel light bar,
^,
and
\are green. Super
Cruise may not begin steering
immediately, even when
Super Cruise is available
and
]has been pressed.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 241
To engage:1. Press
Jto turn on ACC. Make
sure the white
\indicator
displays in the instrument
cluster. See Adaptive Cruise
Control 0229.
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.
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.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
242 DRIVING AND OPERATING
{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 freeway. 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. See “Collision/
Detection Systems” underVehicle
Personalization 0157. 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 freeway.
. 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 freeway ends. .
A Super Cruise system fault
occurs.
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 freeway conditions.
You may need to respond to traffic
events by steering, braking,
or accelerating. See Defensive
Driving 0191. 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.
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
244 DRIVING AND OPERATING
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 freeway.
. The flashing will stop when the system detects that your head and eyes appear to be directed
toward the freeway.
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. See “Collision/Detection Systems”underVehicle
Personalization 0157.
. 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.