Information CADILLAC CT6 2020 Repair Manual

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 189
2. Press the button on top of theshift lever to shift into P (Park).
See Automatic Transmission
0 193.
3. The P indicator on the shift lever will turn red when the vehicle is
in P (Park).
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the vehicle is not in
P (Park) with the parking brake set.
The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle can
move suddenly. You or others could
be injured. To be sure the vehicle
will not move, even when you are
on fairly level ground, always set
(Continued)
Warning (Continued)
the parking brake and shift
to P (Park). SeeShifting Into Park
0 188. If you are towing a trailer,
see Driving Characteristics and
Towing Tips 0262.
If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the parking
brake is set before you leave it.
If you are towing a trailer and parking
on a hill, see Driving Characteristics
and Towing Tips 0262.
Shifting out of Park
This vehicle is equipped with an
electronically controlled transmission.
The shift lock release button is
designed to prevent inadvertent
shifting out of P (Park) unless the
ignition is on, the brake pedal is
applied, and the shift lock release
button is pressed. The shift lock control is always
functional except in the case of an
uncharged or low voltage (less than
9-volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See
Jump Starting - North
America 0343.
To shift out of P (Park): 1. Ensure the engine is running.
2. Apply the brake pedal.
3. Press the shift lock release button.
4. Move the shift lever to the desired position.
5. The P indicator will turn white and the gear indicator on the
shift lever will turn red when the
vehicle is no longer in P (Park).
6. After releasing the shift lever, it will return to the center position.
If the vehicle cannot shift from
P (Park), a Driver Information
Center (DIC) message will be
displayed. See your dealer for service.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 191
2. Rotate the manual park release90° back to its original position.
3. Apply the parking brake.
4. Confirm that the vehicle is in P (Park) by turning the ignition
on or by placing the vehicle in
ACC/ACCESSORY, then ensure
that the indicator displays P.
5. Install the interior trim panel.
Parking over Things
That Burn
{Warning
Things that can burn could touch
hot exhaust parts under the vehicle
and ignite. Do not park over papers,
leaves, dry grass, or other things
that can burn.
Active Fuel Management
The vehicle engine may be equipped
with Active Fuel Management, which
allows the engine to operate on either
all of its cylinders, or in reduced
cylinder operation, depending on the
driving conditions.
When less power is required, such as
cruising at a constant vehicle speed,
the system will operate in reduced
operation mode, allowing the vehicle
to achieve better fuel economy. When
greater power demands are required,
such as accelerating from a stop,
passing, or merging onto a freeway,
the system will maintain full-cylinder
operation.
If the vehicle has an Active Fuel
Management indicator, see Driver
Information Center (DIC) for more
information on using this display.
Extended Parking
It is best not to park with the vehicle
running. If the vehicle is left running,
be sure it will not move and there is
adequate ventilation.
See Shifting Into Park 0188 and
Engine Exhaust 0192.
If the vehicle is left parked and
running with the RKE transmitter
outside the vehicle, it will continue to
run for up to half an hour.
If the vehicle is left parked and
running with the RKE transmitter
inside the vehicle, it will continue to
run for up to an hour.
The vehicle could turn off sooner if it
is parked on a hill, due to lack of
available fuel.
The timer will reset if the vehicle is
taken out of P (Park) while it is
running.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
194 DRIVING AND OPERATING
This vehicle is equipped with an
electronic controlled transmission.
The shift lock release button is
designed to prevent inadvertent
shifting out of P (Park) unless the
ignition is on, the brake pedal is
applied, and the shift lock release
button is pressed.
When the vehicle is stopped, press
ENGINE START/STOP to turn off the
vehicle. The transmission will shift to
P (Park) automatically, unless the
vehicle is in N (Neutral). See“Car
Wash Mode ”later in this section. The vehicle will not shift into P (Park)
if it is moving too fast. Stop the
vehicle and shift into P (Park).
To shift in and out of P (Park), see
Shifting Into Park
0188 and
Shifting out of Park 0189.
Service Shift Lever Message
If the message SERVICE SHIFTER SEE
OWNER’S MANUAL appears in the
Driver Information Center (DIC), the
shift lever needs service. Have the
vehicle serviced as soon as possible.
If the vehicle is automatically shifting
into P (Park), check to see if the
P (Park) button on top of the shift
lever is stuck. To operate the vehicle,
hold the shift lever in the desired gear,
R (Reverse) or D (Drive), until vehicle
speed exceeds 15 km/h (10 mph), then
release the shift lever.
R : Use this gear to back up.
If the vehicle is shifted from either
R (Reverse) to D (Drive), or D (Drive)
or M (Manual Mode) to R (Reverse)
while the speed is too high, the
vehicle will shift to N (Neutral).
Reduce the vehicle speed and try the
shift again. To shift into R (Reverse):
1. Bring the vehicle to a complete stop.
2. Press and hold shift lock release button on the side of the shift
lever.
3. From the center position, move the shift lever forward through
the first detent to the end of
travel. R is illuminated in red.
4. After releasing the shift lever, it will return to the center position.
To shift out of R (Reverse):
1. Bring the vehicle to a complete stop.
2. Shift to the desired gear.
3. After releasing the shift lever, it will return to the center position.
At low vehicle speeds, R (Reverse) can
be used to rock the vehicle back and
forth to get out of snow, ice, or sand
without damaging the transmission.
See If the Vehicle Is Stuck 0179.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 203
Ride Control Systems
Traction Control/Electronic
Stability Control
System Operation
The vehicle has a Traction Control
System (TCS) and StabiliTrak/
Electronic Stability Control (ESC).
These systems help limit wheel spin
and assist the driver in maintaining
control, especially on slippery road
conditions.
TCS activates if it senses that any of
the drive wheels are spinning or
beginning to lose traction. When this
happens, TCS applies the brakes to the
spinning wheels and reduces engine
power to limit wheel spin.
StabiliTrak/ESC activates when the
vehicle senses a difference between
the intended path and the direction
the vehicle is actually traveling.
StabiliTrak/ESC selectively applies
braking pressure to any one of the
vehicle wheel brakes to assist the
driver in keeping the vehicle on the
intended path.If cruise control is being used and
traction control or StabiliTrak/ESC
begins to limit wheel spin, cruise
control will disengage. Cruise control
may be turned back on when road
conditions allow.
Both systems come on automatically
when the vehicle is started and begins
to move. The systems may be heard or
felt while they are operating or while
performing diagnostic checks. This is
normal and does not mean there is a
problem with the vehicle.
It is recommended to leave both
systems on for normal driving
conditions, but it may be necessary to
turn TCS off if the vehicle gets stuck
in sand, mud, ice, or snow. See
If the
Vehicle Is Stuck 0179 and “Turning
the Systems Off and On ”later in this
section.
The indicator light for both systems is
in the instrument cluster. This
light will:
. Flash when TCS is limiting
wheel spin.
. Flash when StabiliTrak/ESC is
activated.
. Turn on and stay on when either
system is not working.
If either system fails to turn on or to
activate, a message displays in the
Driver Information Center (DIC), and
dcomes on and stays on to indicate
that the system is inactive and is not
assisting the driver in maintaining
control. The vehicle is safe to drive,
but driving should be adjusted
accordingly.
If
dcomes on and stays on:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
4. Drive the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 213
(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.
The speedometer reading can be
displayed in either English or
metric units. See Instrument Cluster
(Base Level) 0110 or
Instrument Cluster (Uplevel) 0113. The
increment value used depends on the
units displayed.
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.
ACC IndicatorRegular Cruise
Control Indicator
When ACC is engaged, a green
\
indicator will be lit on the instrument
cluster. When the regular cruise
control is engaged, a green
J
indicator will be lit on the instrument
cluster.
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 (Continued)
Warning (Continued)
vehicle will not automatically brake
for other vehicles, which could
cause an accident 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 ACC when not
desired. Keep
Joff 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 less than 25 km/h
(15 mph), although it can be resumed
when driving at lower speeds.
To set ACC while moving:
1. Press
J.
2. Get up to the desired speed.
3. Press and release SET−.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
224 DRIVING AND OPERATING
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.
{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 0140. 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
228 DRIVING AND OPERATING
exiting a curve. This is normal
operation. The vehicle does not need
service.
Other Vehicles Entering Your Lane
Super Cruise may not detect a vehicle
that enters your lane, or may not
brake fast enough to avoid a crash.
You must manually brake and steer
the vehicle.Intersections; Vehicles Crossing the
Road Ahead
Super Cruise will not brake the vehicle
when approaching an intersection that
is controlled by a traffic light or stop
sign. Super Cruise will not detect
vehicles crossing the road ahead,
including at intersections, and will not
automatically steer or brake to
prevent a collision. You must
manually brake and steer the vehicle.
Towing a Trailer
Do not use Super Cruise when towing
a trailer. For towing capability, see
Trailer Towing
0266.
Super Cruise on Hills
Do not use Super Cruise while driving
on steep hills. Super Cruise Indicator Light
Summary
The steering wheel light bar and
instrument cluster light provide the
following important information about
Super Cruise operation:

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
230 DRIVING AND OPERATING
Super Cruise Message Summary
Unavailable Turn on Adaptive Cruise ControlAdaptive Cruise Control must be on before Super Cruise can
be enabled.
. Set speed is not required before enabling Super Cruise.
. Adaptive Cruise Control is not required to be engaged
before enabling Super Cruise.
Unavailable Set Forward Collision Setting to Alert and Brake Super Cruise is disabled unless Alert and Brake is selected. 1. Select the Settings menu, then Vehicle, then Collision/Detection Systems, and then Forward Collision System.
2. Set Forward Collision to Alert and Brake.
Unavailable No Road Information .
There is no map information available for that portion
of a controlled access road. Recent road reconstruction
may turn off Super Cruise for that section of road until
new map information is available.
. The vehicle is not on the correct type of road.
A controlled access freeway or compatible divided
highway is required for Super Cruise.
. There are lanes entering or exiting on both the left and
right side of the road.
. The vehicle is approaching a interchange or
intersection. The message will appear for 10 seconds
or less.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
DRIVING AND OPERATING 233
Map Updates
Super Cruise map information must
be periodically updated at least once
every seven months to determine
whether Super Cruise is available on
certain roads. Turn on the vehicle’s
built-in Wi-Fi hotspot to receive
automatic updates via OnStar, or see
your dealer. See the following
region-based websites for Super Cruise
map open source compliance
documentation, including the license
information:
Disabling the vehicle's Wi-Fi or
Location Services will disable
automatic map updates. Super Cruise
will stop functioning after seven
months or less, depending on the time
of the last map update.
North America: http://
www.oss.gm.com/GMNA/7E2/
supercruise
China: http://www.oss.gm.com/china/
7E2/supercruiseData Download
Super Cruise uses the Wi-Fi hotspot in
the vehicle to download map updates
and GPS enhancement data to the
vehicle. If a mobile device with its
own Wi-Fi hotspot is brought into the
vehicle and its Service Set Identifier
(SSID) and password are the same as
the OnStar Wi-Fi hotspot, then the
vehicle may connect to the mobile
device’s Wi-Fi hotspot to download
the data. See
Connections0398.
To prevent usage of a mobile device
data plan, do one of the following:
. Do not use the same SSID and
password for the OnStar Wi-Fi
hotspot and a mobile device.
. Disable the personal mobile device
Wi-Fi hotspot when inside the
vehicle.
If the vehicle is equipped with OnStar
and has an active service plan,
additional data may be collected
through the OnStar system. This
includes information about: the
vehicle’s operation; a crash involving the vehicle; the use of the vehicle and
its features; and, in certain situations,
the location and approximate GPS
speed of the vehicle. Refer to the
OnStar Terms and Conditions and
Privacy Statement on the OnStar
website.
Location Services
This setting enables or disables
sharing of vehicle location outside the
vehicle for certain purposes. Even if
the Location Services setting is
disabled, vehicle location information
will continue to be shared for
emergency services and Super Cruise,
if equipped.
System Care
The camera on the steering column
has a lens cover that may become
dirty over time and affect camera
performance. Clean the lens cover
with a soft cloth sprayed with glass
cleaner. Wipe the lens gently, then dry
it. Never use abrasive cloths/cleaners
or corrosive chemicals of any kind on
the lens cover.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/14/19
234 DRIVING AND OPERATING
Super Cruise uses the front radar,
front camera, and 360 degree cameras
for its operation. Clean surfaces are
required for Super Cruise operation.
SeeAdaptive Cruise Control 0211,
“Surround Vision Camera ”under
Assistance Systems for Parking or
Backing 0235, and Lane Keep Assist
(LKA) 0254 for care information.
Caution
The Super Cruise system is a highly
sophisticated system and should
only be serviced by technicians
with the proper training, tools, and
safety instructions, which your
dealer has. Without proper training
and tools the vehicle may become
damaged.
Driver Assistance
Systems
This vehicle may have features that
work together to help avoid crashes or
reduce crash damage while driving,
backing, and parking. Read this entire
section before using these systems.
{Warning
Do not rely on the Driver
Assistance Systems. These systems
do not replace the need for paying
attention and driving safely. You
may not hear or feel alerts or
warnings provided by these
systems. Failure to use proper care
when driving may result in injury,
death, or vehicle damage. See
Defensive Driving 0173.
Under many conditions, these
systems will not: . Detect children, pedestrians,
bicyclists, or animals.
(Continued)
Warning (Continued)
.Detect vehicles or objects
outside the area monitored by
the system.
. Work at all driving speeds.
. Warn you or provide you with
enough time to avoid a crash.
. Work under poor visibility or
bad weather conditions.
. Work if the detection sensor
is not cleaned or is covered
by ice, snow, mud, or dirt.
. Work if the detection sensor
is covered up, such as with a
sticker, magnet, or metal
plate.
. Work if the area surrounding
the detection sensor is
damaged or not properly
repaired.
Complete attention is always
required while driving, and you
should be ready to take action and
apply the brakes and/or steer the
vehicle to avoid crashes.