2019 CADILLAC CT6 ECO mode

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
264 DRIVING AND OPERATING
alerts will vary based on vehicle speed.
The faster the vehicle speed, the
farther away the alert will occur.
Consider traffic and weather
conditions when selecting the alert
timing. The range of selectable alert
timings may not be appropriate for all
drivers and driving conditions.
If your vehicle is equipped with
Adaptive Cruise Control (ACC),
changing the FCA timing setting
automatically changes the following
gap setting (Far, Medium, or Near).
Following Distance Indicator
The following distance to a moving
vehicle ahead in your path is indicated
in following time in seconds on the
Driver Information Center (DIC). See
Driver Information Center (DIC)0150.
The minimum following time is
0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is
out of sensor range, dashes will be
displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts
for turning vehicles, vehicles in other
lanes, objects that are not vehicles,
or shadows. These alerts are normal
operation and the vehicle does not
need service.
Cleaning the System
If the FCA system does not seem to
operate properly, this may correct the
issue:
. Clean the outside of the
windshield in front of the rearview
mirror.
. Clean the entire front of the
vehicle.
. Clean the headlamps.
Forward Automatic
Braking (FAB)
If the vehicle has Forward Collision
Alert (FCA), it also has FAB, which
includes Intelligent Brake Assist (IBA).
When the system detects a vehicle
ahead in your path that is traveling in
the same direction that you may be about to crash into, it can provide a
boost to braking or automatically
brake the vehicle. This can help avoid
or lessen the severity of crashes when
driving in a forward gear. Depending
on the situation, the vehicle may
automatically brake moderately or
hard. This forward automatic braking
can only occur if a vehicle is detected.
This is shown by the FCA vehicle
ahead indicator being lit. See
Forward
Collision Alert (FCA) System 0262.
The system works when driving in a
forward gear between 8 km/h (5 mph)
and 80 km/h (50 mph), or on vehicles
with Adaptive Cruise Control (ACC),
above 4 km/h (2 mph). It can detect
vehicles up to approximately 60 m
(197 ft).
{Warning
FAB is an emergency crash
preparation feature and is not
designed to avoid crashes. Do not
rely on FAB to brake the vehicle. (Continued)

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
DRIVING AND OPERATING 281
Driving Characteristics and
Towing Tips
{Warning
You can lose control when towing a
trailer if the correct equipment is
not used or the vehicle is not driven
properly. For example, if the trailer
is too heavy or the trailer brakes are
inadequate for the load, the vehicle
may not stop as expected. You and
others could be seriously injured.
The vehicle may also be damaged,
and the repairs would not be
covered by the vehicle warranty.
Pull a trailer only if all the steps in
this section have been followed. Ask
your dealer for advice and
information about towing a trailer
with the vehicle.
Driving with a Trailer
Trailering is different than just driving
the vehicle by itself. Trailering means
changes in handling, acceleration,
braking, durability, and fuel economy.Successful, safe trailering takes correct
equipment, and it has to be used
properly.
The following information has many
time-tested, important trailering tips
and safety rules. Many of these are
important for your safety and that of
your passengers. Read this section
carefully before pulling a trailer.
When towing a trailer:
.
Become familiar with and follow
all state and local laws that apply
to trailer towing. These
requirements vary from state to
state.
. State laws may require the use of
extended side view mirrors. Even if
not required, you should install
extended side view mirrors if your
visibility is limited or restricted
while towing.
. Do not tow a trailer during the
first 800 km (500 mi) of vehicle
use to prevent damage to the
engine, axle, or other parts. .
It is recommended to perform the
first oil change before heavy
towing.
. During the first 800 km (500 mi) of
trailer towing, do not drive over
80 km/h (50 mph) and do not
make starts at full throttle.
. Vehicles can tow in D (Drive).
If the transmission downshifts too
often, a lower gear may be
selected using M (Manual Mode).
See Manual Mode 0215.
If equipped, the following driver
assistance features should be turned
off when towing a trailer:
. Adaptive Cruise Control (ACC)
. Super Cruise Control
. Lane Keep Assist (LKA)
. Park Assist
. Automatic Parking Assist (APA)
. Reverse Automatic Braking (RAB)
If equipped, the following driver
assistance features should be turned
to alert or off when towing a trailer:

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 311
1. Remove the coolant surge tankpressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you hear
a hiss, wait for that to stop. This
will allow any pressure still left
to be vented out the
discharge hose.
2. Keep turning the pressure cap slowly and remove it.
3. Fill the coolant surge tank with the proper mixture to the
indicated level mark.
4. With the coolant surge tank pressure cap off, start the engine
and let it run until you can feel
the upper radiator hose getting
hot. Watch out for the engine
cooling fan.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper mixture to the coolant surge
tank until the level reaches the
indicated level mark.
5. Replace the pressure cap tightly.
6. Verify coolant level after the engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the
proper level when the system
cools down again, see your
dealer.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the cap
is properly and tightly secured.
2.0L L4 Engine Only - Automatic
Coolant Service Fill Instructions
If equipped, this feature assists in
filling and removing air from the
cooling system after service of
components or when coolant is added
after being too low.
To activate the fill and air removal
process:
1. With a cold system, add coolant to the COLD FILL mark on the
surge tank.
2. Replace the cap on the surge tank.
3. Connect the vehicle to a battery charger.
4. Turn the ignition to Service Mode. See Ignition Positions
0 201.
5. Turn off the air conditioning.
6. Set the parking brake.
7. At the same time, press the accelerator and the brake for
two seconds, then release.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 345
GAWR RR:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0197.
Intended Outboard Sidewall
:
The side of an asymmetrical tire
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric unit
for air pressure.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned number
ranging from 1 to 279 that
corresponds to the load carrying
capacity of a tire.
Maximum Inf lation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall. Maximum Load Rating
:The load
rating for a tire at the maximum
permissible inflation pressure for
that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb weight,
accessory weight, vehicle capacity
weight, and production options
weight.
Normal Occupant Weight
:The
number of occupants a vehicle is
designed to seat multiplied by
68 kg (150 lb). See Vehicle Load
Limits 0197.
Occupant Distribution
:
Designated seating positions.
Outward Facing Sidewall
:The
side of an asymmetrical tire that
has a particular side that faces
outward when mounted on a
vehicle. The side of the tire that
contains a whitewall, bears white
lettering, or bears manufacturer,
brand, and/or model name molding that is higher or deeper
than the same moldings on the
other sidewall of the tire.
Passenger (P-Metric) Tire
:A tire
used on passenger cars and some
light duty trucks and
multipurpose vehicles.
Recommended Inf lation
Pressure
:Vehicle manufacturer's
recommended tire inflation
pressure as shown on the tire
placard. See Tire Pressure 0346
and Vehicle Load Limits 0197.
Radial Ply Tire
:A pneumatic tire
in which the ply cords that extend
to the beads are laid at 90 degrees
to the centerline of the tread.
Rim
:A metal support for a tire
and upon which the tire beads are
seated.
Sidewall
:The portion of a tire
between the tread and the bead.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
CUSTOMER INFORMATION 409
Repair Facility
GM also recommends that you choose
a collision repair facility that meets
your needs before you ever need
collision repairs. Your dealer may have
a collision repair center with
GM-trained technicians and
state-of-the-art equipment, or be able
to recommend a collision repair center
that has GM-trained technicians and
comparable equipment.
Insuring the Vehicle
Protect your investment in the GM
vehicle with comprehensive and
collision insurance coverage. There are
significant differences in the quality of
coverage afforded by various
insurance policy terms. Many
insurance policies provide reduced
protection to the GM vehicle by
limiting compensation for damage
repairs by using aftermarket collision
parts. Some insurance companies will
not specify aftermarket collision parts.
When purchasing insurance, we
recommend that you ensure that the
vehicle will be repaired with GM
original equipment collision parts.If such insurance coverage is not
available from your current insurance
carrier, consider switching to another
insurance carrier.
If the vehicle is leased, the leasing
company may require you to have
insurance that ensures repairs with
Genuine GM Original Equipment
Manufacturer (OEM) parts or Genuine
Manufacturer replacement parts. Read
the lease carefully, as you may be
charged at the end of the lease for
poor quality repairs.If a Crash Occurs
If there has been an injury, call
emergency services for help. Do not
leave the scene of a crash until all
matters have been taken care of. Move
the vehicle only if its position puts
you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information
to police and other parties involved in
the crash.
For emergency towing see
Roadside
Service 0405. Gather the following information:
.
Driver name, address, and
telephone number
. Driver license number
. Owner name, address, and
telephone number
. Vehicle license plate number
. Vehicle make, model, and
model year
. Vehicle Identification
Number (VIN)
. Insurance company and policy
number
. General description of the damage
to the other vehicle
Choose a reputable repair facility that
uses quality replacement parts. See
“Collision Parts ”earlier in this section.
If the airbag has inflated, see What
Will You See after an Airbag Inf lates?
0 88.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
410 CUSTOMER INFORMATION
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends that
you take an active role in its repair.
If you have a pre-determined repair
facility of choice, take the vehicle
there, or have it towed there. Specify
to the facility that any required
replacement collision parts be original
equipment parts, either new Genuine
GM parts or recycled original GM
parts. Remember, recycled parts will
not be covered by the GM vehicle
warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits, your
insurance company may initially value
the repair using aftermarket parts.
Discuss this with the repair
professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have
the vehicle repaired with Genuine GM
parts, even if your insurance coverage
does not pay the full cost.If another party's insurance company
is paying for the repairs, you are not
obligated to accept a repair valuation
based on that insurance company's
collision policy repair limits, as you
have no contractual limits with that
company. In such cases, you can have
control of the repair and parts choices
as long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the engine,
transmission, axle, suspension, brakes,
electrical system, steering system,
body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic operational
information about the vehicle. The
owner’s manual includes the
Maintenance Schedule for all models.Customer literature publications
available for purchase include owner’s
manuals, warranty manuals,
infotainment manuals, and portfolios.
Portfolios include an owner’s manual,
warranty manual, infotainment
manual, if applicable, and zip lock bag
or pouch.
Current and Past Models
Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see Helm,
Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
428 INDEX
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Cluster, Instrument . . . . . . . . . . . .127, 130
Collision Damage Repair . . . . . . . . . . . 408
Compact Spare Tire . . . . . . . . . . . . . . . . . 366
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Connected Services
Connections . . . . . . . . . . . . . . . . . . . . . . . 423
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 425
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 422
Connections Connected Services . . . . . . . . . . . . . . . 423
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Control of a Vehicle . . . . . . . . . . . . . . . . 191
Convenience Net . . . . . . . . . . . . . . . . . . . . 117
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 52
Coolant Engine Temperature Gauge . . . . . . 135
Engine Temperature Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Cooling . . . . . . . . . . . . . . . . . . . . . . . . .175, 180
Cooling System . . . . . . . . . . . . . . . . . . . . . 307
Cornering Lamps . . . . . . . . . . . . . . . . . . . 170
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 171 Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 227 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Cruise Control, Adaptive . . . . . . . . . . . 229
Cruise Control, Super . . . . . . . . . . . . . . . 237
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Customer Assistance . . . . . . . . . . . . . . . 403 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
Text Telephone (TTY) Users . . . . . 403
Customer Information
Publications OrderingInformation . . . . . . . . . . . . . . . . . . . . . . 410
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 401
D
Damage Repair, Collision . . . . . . . . . . . 408
Danger, Warning, and Caution . . . . . . . . 2
Data CollectionInfotainment System . . . . . . . . . . . . . 413
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
Data Recorders, Event . . . . . . . . . . . . . . 412
Daytime Running Lamps (DRL) . . . 168
Defensive Driving . . . . . . . . . . . . . . . . . . . 191
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 40
Diagnostics Connected Services . . . . . . . . . . . . . . . 425 Distracted Driving . . . . . . . . . . . . . . . . . . 190
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 171
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 149
Delayed Locking . . . . . . . . . . . . . . . . . . . . 40
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 40
Rear Seat Pass-Through . . . . . . . . . . . . 75
Drive Belt Routing, Engine . . . . . . . . . 399
Drive Systems All-Wheel Drive . . . . . . . . . . . . . . 216, 317
Driver Assistance Systems . . . . . . . . . 252
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 150
Driver Mode Control . . . . . . . . . . . . . . . . 222
Driver Mode Control Light . . . . . . . . . 146
Driving Assistance Systems . . . . . . . . . . . . . . . 262
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 281
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
For Better Fuel Economy . . . . . . . . . . . 27
Hill and Mountain Roads . . . . . . . . 194
If the Vehicle is Stuck . . . . . . . . . . . . 196
Loss of Control . . . . . . . . . . . . . . . . . . . . 193
Off-Road Recovery . . . . . . . . . . . . . . . . 192
Track Events and Competitive . . . 193

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
432 INDEX
Locks (cont'd)Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Lockout Protection . . . . . . . . . . . . . . . . . 41
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 193
Low Fuel Warning Light . . . . . . . . . . . 148
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 340
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . 102
Lumbar Adjustment . . . . . . . . . . . . . 65, 74 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 389
Maintenance Schedule . . . . . . . . . . . . . 383 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 392
Malfunction Indicator Lamp . . . . . . . 139
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 215
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Memory Features . . . . . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 67 Messages
Engine Power . . . . . . . . . . . . . . . . . . . . . 156
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 156
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . 54
Mirrors
Automatic Dimming . . . . . . . . . . . . . . . . 53
Automatic Dimming Rearview . . . . . 54
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . 53
Mirrors, Interior Rearview . . . . . . . . . . . 54
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Driver Control . . . . . . . . . . . . . . . . . . . . . 222
Monitor System, Tire Pressure . . . . . 348
N
Navigation Connected Services . . . . . . . . . . . . . . . 422
Net, Convenience . . . . . . . . . . . . . . . . . . . 117
New Vehicle Break-In . . . . . . . . . . . . . . . 200
Night Vision System . . . . . . . . . . . . . . . . 268
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Engine Oil Life System . . . . . . . . . . . 302
Engine Oil Pressure Gauge . . . . . . . 134
Pressure Light . . . . . . . . . . . . . . . . . . . . . 147
Older Children, Restraints . . . . . . . . . . . 96
Online Owner Center . . . . . . . . . . . . . . . 404
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
OnStar Additional Information . . . . 416
OnStar Emergency . . . . . . . . . . . . . . . . . . 415
OnStar Overview . . . . . . . . . . . . . . . . . . . . 414
OnStar Security . . . . . . . . . . . . . . . . . . . . . 416
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Overheating, Engine . . . . . . . . . . . . . . . . 312
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . . . . 206
Shifting Out of . . . . . . . . . . . . . . . . . . . . 207
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Parking Brake and P (Park)Mechanism Check . . . . . . . . . . . . . . . 318
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Over Things That Burn . . . . . . . . . . . 208