fuel CADILLAC CT6 2019 Owner's Guide

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
CLIMATE CONTROLS 181
9. On/Off
The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and Sync settings can
be controlled by touching CLIMATE
on the infotainment Home Page or the
climate button in the climate control
display application tray. A selection
can then be made on the front climate
control page displayed. See the
infotainment manual.
Climate Control Status DisplayThe climate control status display
appears briefly when the climate
control buttons on the center stack
are adjusted.
Automatic Operation
The system automatically controls the
fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to the
desired temperature.
When the indicator light is on or
AUTO is displayed on the climate
control display, the system is in full
automatic operation. If the air delivery
mode or fan setting is manually
adjusted, the Auto indicator turns off
and the display will show the selected
settings. Auto operation can be turned
off individually for climate settings.
For automatic operation: 1. Press AUTO.
2. Set the temperature. Allow the system time to stabilize. Then
adjust the temperature as
needed. To improve fuel efficiency and to cool
the vehicle faster, recirculation may be
automatically selected in warm
weather. The recirculation light will
not come on in AUTO mode. Press
@to select recirculation; press it
again to select outside air.
English units can be changed to
metric units through the instrument
cluster. See “Cluster Options Menu ”or
“Cluster Menu ”under Instrument
Cluster (Uplevel) 0130 or
Instrument Cluster (Base Level) 0127.
OFF : Press to turn the fan on or off.
The temperature control and air
delivery mode can still be adjusted.
Q/R: The temperature can be
adjusted separately for the driver and
the passenger. Press to increase or
decrease the temperature. Press and
hold to rapidly increase or decrease
the temperature.
The driver and passenger
temperatures can also be adjusted by
touching the controls on the climate
control display.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 189
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . . . . 190
Defensive Driving . . . . . . . . . . . . . . . . 191
Drunk Driving . . . . . . . . . . . . . . . . . . . . 191
Control of a Vehicle . . . . . . . . . . . . . . 191
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Off-Road Recovery . . . . . . . . . . . . . . . . 192
Loss of Control . . . . . . . . . . . . . . . . . . . 193
Track Events and CompetitiveDriving . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Driving on Wet Roads . . . . . . . . . . . 193
Hill and Mountain Roads . . . . . . . . 194
Winter Driving . . . . . . . . . . . . . . . . . . . . 195
If the Vehicle Is Stuck . . . . . . . . . . . 196
Vehicle Load Limits . . . . . . . . . . . . . . 197
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . 200
Ignition Positions . . . . . . . . . . . . . . . . 201
Starting the Engine . . . . . . . . . . . . . . 202
Stop/Start System . . . . . . . . . . . . . . . . 203
Engine Heater . . . . . . . . . . . . . . . . . . . . 205
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . 206 Shifting Into Park . . . . . . . . . . . . . . . . 206
Shifting out of Park . . . . . . . . . . . . . . 207
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . . . . . 208
Active Fuel Management . . . . . . . . 208
Extended Parking . . . . . . . . . . . . . . . . . 209
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . 209
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Automatic Transmission
Automatic Transmission . . . . . . . . . 210
Manual Mode . . . . . . . . . . . . . . . . . . . . . 215
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . 216
Brakes
Antilock Brake System (ABS) . . . . 217
Electric Parking Brake . . . . . . . . . . . . 218
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . 219
Hill Start Assist (HSA) . . . . . . . . . . . 219
Automatic VehicleHold (AVH) . . . . . . . . . . . . . . . . . . . . . 220
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . . 220
Driver Mode Control . . . . . . . . . . . . . 222
Locking Rear Axle . . . . . . . . . . . . . . . . 226
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . 227
Adaptive Cruise Control . . . . . . . . . 229
Super Cruise . . . . . . . . . . . . . . . . . . . . . . 237
Driver Assistance Systems
Driver Assistance Systems . . . . . . . 252
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . 253
Rear Pedestrian Alert . . . . . . . . . . . . 260
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . . . . 264
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Night Vision System . . . . . . . . . . . . . 268
Side Blind Zone Alert (SBZA) . . . . 270
Lane Change Alert (LCA) . . . . . . . . 271
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . . 272
Lane Keep Assist (LKA) . . . . . . . . . . 273
Surround Vision Recorder . . . . . . . 274
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . 276
Recommended Fuel (2.0L L4 Turbo Engine) . . . . . . . . . . . . . . . . . . . 277

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
190 DRIVING AND OPERATING
Recommended Fuel (3.0L TwinTurbo V6 and 4.2L Twin Turbo
V8 Engines) . . . . . . . . . . . . . . . . . . . . . 277
Recommended Fuel (3.6L V6 Engine) . . . . . . . . . . . . . . . . . . . . . . 277
Prohibited Fuels . . . . . . . . . . . . . . . . . . 277
Fuels in Foreign Countries . . . . . . . 278
Fuel Additives . . . . . . . . . . . . . . . . . . . . 278
Filling the Tank . . . . . . . . . . . . . . . . . . 278
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . . . . . . 280
Trailer Towing
General Towing Information . . . . 280
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 281
Trailer Towing . . . . . . . . . . . . . . . . . . . . 284
Towing Equipment . . . . . . . . . . . . . . . 286
Conversions and Add-Ons
Add-On Electrical Equipment . . . 287
Driving Information
Distracted Driving
Distraction comes in many forms and
can take your focus from the task of
driving. Exercise good judgment and
do not let other activities divert your
attention away from the road. Many
local governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, keep your
eyes on the road, keep your hands on
the steering wheel, and focus your
attention on driving.
. Do not use a phone in demanding
driving situations. Use a
hands-free method to place or
receive necessary phone calls.
. Watch the road. Do not read, take
notes, or look up information on
phones or other electronic devices.
. Designate a front seat passenger
to handle potential distractions. .
Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings. Program
all trip information into any
navigation device prior to driving.
. Wait until the vehicle is parked to
retrieve items that have fallen to
the floor.
. Stop or park the vehicle to tend to
children.
. Keep pets in an appropriate carrier
or restraint.
. Avoid stressful conversations
while driving, whether with a
passenger or on a cell phone.
{Warning
Taking your eyes off the road too
long or too often could cause a
crash resulting in injury or death.
Focus your attention on driving.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
196 DRIVING AND OPERATING
{Warning
Snow can trap engine exhaust
under the vehicle. This may cause
exhaust gases to get inside. Engine
exhaust contains carbon monoxide
(CO), which cannot be seen or
smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in snow:. Clear snow from the base of
the vehicle, especially any
blocking the exhaust pipe.
. Open a window about 5 cm
(2 in) on the vehicle side that
is away from the wind, to
bring in fresh air.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to circulate the air
inside the vehicle and set the
(Continued)
Warning (Continued)
fan speed to the highest
setting. See“Climate Control
Systems.”
For more information about CO, see
Engine Exhaust 0209.
To save fuel, run the engine for short
periods to warm the vehicle and then
shut the engine off and partially close
the window. Moving about to keep
warm also helps.
If it takes time for help to arrive,
when running the engine, push the
accelerator pedal slightly so the
engine runs faster than the idle speed.
This keeps the battery charged to
restart the vehicle and to signal for
help with the headlamps. Do this as
little as possible, to save fuel.
If the Vehicle Is Stuck
Slowly and cautiously spin the wheels
to free the vehicle when stuck in sand,
mud, ice, or snow. If stuck too severely for the traction
system to free the vehicle, turn the
traction system off and use the
rocking method. See
Traction Control/
Electronic Stability Control 0220.
{Warning
If the vehicle's tires spin at high
speed, they can explode, and you or
others could be injured. The vehicle
can overheat, causing an engine
compartment fire or other damage.
Spin the wheels as little as possible
and avoid going above 56 km/h
(35 mph).
Rocking the Vehicle to Get it Out
Turn the steering wheel left and right
to clear the area around the front
wheels. Turn off any traction system.
Shift back and forth between
R (Reverse) and a low forward gear,
spinning the wheels as little as
possible. To prevent transmission
wear, wait until the wheels stop
spinning before shifting gears. Release
the accelerator pedal while shifting,
and press lightly on the accelerator

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
200 DRIVING AND OPERATING
weight of the driver, passengers,
and cargo should never exceed the
vehicle's capacity weight.
Certification Label
Label Example
A vehicle-specific Certification
label is attached to the vehicle's
center pillar (B-pillar). The label
may show the gross weight
capacity of the vehicle, called the
Gross Vehicle Weight Rating
(GVWR). The GVWR includes the
weight of the vehicle, all
occupants, fuel, and cargo.
{Warning
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo
area of the vehicle. In the
cargo area, put them as far
forward as possible. Try to
spread the weight evenly.
.Never stack heavier things,
like suitcases, inside the
vehicle so that some of
them are above the tops of
the seats.
.Do not leave an unsecured
child restraint in the
vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat folded
down unless needed.
Starting and Operating
New Vehicle Break-In
Follow these recommended guidelines
during the first 2 400 km (1,500 mi) of
driving this vehicle. Parts have a
break-in period and performance will
be better in the long run.
For the first 2 400 km (1,500 mi):
. Avoid full throttle starts and
abrupt stops.
. Do not exceed 4000 engine rpm.
. Avoid driving at any one constant
speed, fast or slow.
. Avoid downshifting to brake or
slow the vehicle when the engine
speed will exceed 4000 rpm.
. Do not let the engine labor. Never
lug the engine in high gear at low
speeds.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 201
.Do not participate in track events,
sport driving schools, or similar
activities during this break-in
period.
. Check engine oil with every
refueling and add if necessary. Oil
and fuel consumption may be
higher than normal during the
first 2 400 km (1,500 mi).
. To break in new tires, drive at
moderate speeds and avoid hard
cornering for the first
300 km (200 mi). New tires do not
have maximum traction and may
tend to slip.
. New brake linings also need a
break–in period. Avoid making
hard stops during the first
300 km (200 mi). This is
recommended every time brake
linings are replaced.Ignition Positions
The vehicle has an electronic keyless
ignition with pushbutton start.
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference to
the Keyless Access system. See Remote
Keyless Entry (RKE) System Operation
0 29.
To shift out of P (Park), the ignition
must be on and the brake pedal must
be applied. Stopping the Engine/OFF (No
Indicator Lights) :
When the vehicle
is stopped, press ENGINE START/
STOP once to turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory Power
(RAP) 0206.
If the vehicle is in R (Reverse),
D (Drive), or M (Manual Mode), the
vehicle will shift to P (Park), the
ignition will turn off, and RAP will
remain active.
If the vehicle is in N (Neutral), the
ignition will return to ACC/
ACCESSORY and display the message
SHIFT TO PARK in the Driver
Information Center (DIC). When the
vehicle is shifted into P (Park), the
ignition will turn off.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake and
steering systems and disable the
airbags.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 203
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change the
way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty. See
Add-On Electrical Equipment0287.
Starting Procedure 1. With the Keyless Access system, the Remote Keyless Entry (RKE)
transmitter must be in the
vehicle. Press ENGINE START/
STOP with the brake pedal
applied. When the engine begins
cranking, let go of the button. The idle speed will go down as
the engine gets warm. Do not
race the engine immediately
after starting it.
If the RKE transmitter is not in
the vehicle, if there is
interference, or if the RKE
battery is low, a Driver
Information Center (DIC) will
display a message. See
Remote
Keyless Entry (RKE) System
Operation 029.
Caution
Cranking the engine for long
periods of time, by returning the
ignition to the START position
immediately after cranking has
ended, can overheat and damage
the cranking motor, and drain the
battery. Wait at least 15 seconds
between each try, to let the
cranking motor cool down. 2. If the engine does not start after
five to 10 seconds, especially in
very cold weather (below −18 °C
or 0 °F), it could be flooded with
too much gasoline. Try pushing
the accelerator pedal all the way
to the floor and holding it there
as you press ENGINE START/
STOP. Wait at least 15 seconds
between each try, to allow the
cranking motor to cool down.
When the engine starts, release
the accelerator. If the vehicle
starts briefly but then stops
again, do the same thing. This
clears the extra gasoline from the
engine. Do not race the engine
immediately after starting it.
Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Stop/Start System
If equipped, the Stop/Start system will
shut off the engine to help conserve
fuel. It has components designed for
the increased number of starts.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 205
Engine Heater
Vehicles with the engine heater can
use this option in cold weather
conditions at or below−18 °C (0 °F) for
easier starting and better fuel
economy during engine warm-up. Plug
in the coolant heater at least four
hours before starting your vehicle. An
internal thermostat in the plug-end of
the cord may exist which will prevent
engine heater operation at
temperatures above −18 °C (0 °F).
{Warning
Do not plug in the engine block
heater while the vehicle is parked in
a garage or under a carport.
Property damage or personal injury
may result. Always park the vehicle
in a clear open area away from
buildings or structures.
To Use the Engine Heater
1. Turn off the engine. 2. Open the hood and unwrap the
electrical cord. The cord is
clipped to the diagonal brace on
the passenger side of the engine
compartment.
Check the heater cord for
damage. If it is damaged, do not
use it. See your dealer for a
replacement. Inspect the cord for
damage yearly.
3. Plug it into a normal, grounded 110-volt AC outlet.
{Warning
Improper use of the heater cord or
an extension cord can damage the
cord and may result in overheating
and fire.
. Plug the cord into a
three-prong electrical utility
receptacle that is protected by
a ground fault detection
(Continued)
Warning (Continued)
function. An ungrounded
outlet could cause an electric
shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension cord
in good operating condition,
or using a damaged heater or
extension cord, could make it
overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater cord
and thermostat damage could
occur.
(Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
208 DRIVING AND OPERATING
To place the vehicle in N (Neutral)
using the manual park release:1. Ensure the vehicle is on level ground and set the parking
brake.
2. Turn the vehicle off.
3. Use a flat-bladed tool to remove the interior trim panel on the
center console to the right of the
accelerator pedal.
4. Pull the carpet back to expose the manual park release lever.
5. Ensure more than one minute has elapsed since Step 2. Apply
the brake pedal.
6. Pull the manual park releaselever 90° to its latching position.
7. With the brake pedal released, place the ignition in ACC/
ACCESSORY. Then apply the
brake pedal and release the
parking brake.
To return the vehicle to P (Park) using
the manual park release: 1. Bring the vehicle to a complete stop.
2. Rotate the manual park release 90° 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
This vehicle's 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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 209
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.
SeeShifting Into Park 0206 and
Engine Exhaust 0209. 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.
Engine Exhaust
{Warning
Engine exhaust contains carbon
monoxide (CO), which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
. The vehicle idles in areas with
poor ventilation (parking
garages, tunnels, deep snow
that may block underbody
airflow or tail pipes).
. The exhaust smells or sounds
strange or different.
. The exhaust system leaks due
to corrosion or damage.
. The vehicle exhaust system
has been modified, damaged,
or improperly repaired.
(Continued)