ABS CADILLAC CT6 2019 User Guide

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
220 DRIVING AND OPERATING
Automatic Vehicle
Hold (AVH)
Automatic Vehicle Hold (AVH),
if equipped, can be turned on by
pressing AUTO HOLD with the driver
seat belt fastened, the driver door
closed, and the engine running. The
AVH indicator will come on.This feature will activate when the
vehicle is stopped to prevent it from
moving. After the brake pedal has
been released and before the
accelerator pedal has been pressed,
AVH uses braking pressure to hold the
vehicle stationary. In addition, the
ABS pump motor may activate to
build brake pressure to maintain the
vehicle at a standstill if necessary.
If AVH is holding the vehicle, the AVH
indicator will change to green. Once
AVH is active it will hold the vehicle
for a defined time period then engage
the parking brake. While AVH is
holding the vehicle, the parking brake
will engage if the driver door is
opened or the driver seat belt is
unfastened. See
Automatic Vehicle Hold
(AVH) Light 0144.
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.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
284 DRIVING AND OPERATING
3. When the wheel chocks are inplace, release the regular brakes
until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal. .Start the engine.
. Shift into a gear.
. Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance when Trailer
Towing
The vehicle needs service more often
when used to tow trailers. See
Maintenance Schedule 0383. It is
especially important to check the
automatic transmission fluid, engine oil, axle lubricant, belts, cooling
system, and brake system before and
during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling when Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
0 312.
Trailer Towing
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer for
important information about
towing a trailer with the vehicle.
Trailer Weight
{Warning
Never exceed the towing capacity
for your vehicle.
Safe trailering requires monitoring the
weight, speed, altitude, road grades,
outside temperature, dimensions of
the front of the trailer, and how
frequently the vehicle is used to tow a
trailer.
{Warning
You and others could be seriously
injured or killed if the trailer is too
heavy or the trailer brakes are
inadequate for the load. The vehicle
may be damaged, and the repairs
would not be covered by the vehicle
warranty.
Only tow a trailer if all the steps in
this section have been followed. Ask
your dealer for advice and
information about towing a trailer.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 315
Antilock Brake System (ABS) and the
Brake Assist system to aid the driver
during various braking situations. See
Antilock Brake System (ABS)0217.
Brake Pad Life System
When to Change Brake Pads
If equipped, this system estimates the
remaining life of the front and rear
brake pads. Brake pad life is displayed
in the Driver Information Center
(DIC), along with a percentage for
each axle. The system must be reset
every time the brake pads are
changed.
When the system has determined that
the brake pads need to be replaced, a
message will display, which may
include mileage remaining.
Brake pads should always be replaced
as complete axle sets.
How to Reset the Brake Pad Life
System
The system will automatically detect
when significantly worn brake pads
are replaced. When the ignition is
turned on after new pads and wear sensors are installed, a message will
display. Follow the prompts to reset
the system.
The brake pad life system can also be
manually reset:
1. Display Brake Pad Life on the DIC. See Driver Information Center
(DIC) 0150.
2. Press and hold SEL. Select front or rear pads as appropriate.
3. Select YES on the confirmation message. Repeat for pads on the
other axle if they were also
replaced.
How to Disable the Brake Pad
Life System
The brake pad life system can be
turned off. This may be necessary if
aftermarket brake pads without wear
sensors are installed. When the
system is turned off, the front and
rear brake pad life percentages will
not display. However, the built-in wear
indicators that make a high-pitched
warning sound when the brake pads are worn can still determine when the
pads should be replaced. See
Brakes
0 314.
To turn off the brake pad life system: 1. Display Brake Pad Life on the DIC. See Driver Information Center
(DIC) 0150.
2. Select DISABLE.
To turn the brake pad life system back
on, follow the above steps but select
ENABLE in Step 2.
Brake Fluid
The brake master cylinder reservoir is
filled with GM approved DOT 3 brake
fluid as indicated on the reservoir cap.
See Engine Compartment Overview
0 292 for the location of the reservoir.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
316 VEHICLE CARE
Checking Brake Fluid
With the vehicle in P (Park) on a level
surface, the brake fluid level should be
between the minimum and maximum
marks on the brake fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
.Normal brake lining wear. When
new linings are installed, the fluid
level goes back up.
. A fluid leak in the brake hydraulic
system. Have the brake hydraulic
system fixed. With a leak, the
brakes will not work well.
Always clean the brake fluid reservoir
cap and the area around the cap
before removing it.
Do not top off the brake fluid. Adding
fluid does not correct a leak. If fluid is
added when the linings are worn,
there will be too much fluid when
new brake linings are installed. Add or
remove fluid, as necessary, only when
work is done on the brake hydraulic
system.{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You or
others could be burned, and the
vehicle could be damaged. Add
brake fluid only when work is done
on the brake hydraulic system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See Brake System Warning Light
(3.0L Twin Turbo and 3.6L V6 Engines)
0 141 orBrake System Warning Light
(2.0L L4 Turbo and 4.2L Twin Turbo
V8 Engines) 0142.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid at
the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0383. What to Add
Use only GM approved DOT 3 brake
fluid from a clean, sealed container.
See
Recommended Fluids and
Lubricants 0392.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the paint
finish can be damaged. Immediately
wash off any painted surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove the
cap and do not add fluid.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
VEHICLE CARE 317
The battery is in the trunk under the
spare tire. Refer to the replacement
number shown on the original battery
label when a new 12-volt battery is
needed.
The vehicle has an Absorbed Glass
Mat (AGM) 12-volt battery.
Installation of a standard 12-volt
battery will result in reduced 12-volt
battery life.
When using a 12-volt battery charger
on the 12-volt AGM battery, some
chargers have an AGM battery setting
on the charger. If available, use the
AGM setting on the charger, to limit
charge voltage to 14.8 volts.
Stop/Start System
Vehicles equipped with a 2.0L LSY,
3.0L LGW, 3.6L LGX, or 4.2L LTA
engine are equipped with a Stop/Start
system to shut off the engine to help
conserve fuel. SeeStop/Start System
0 203.{Warning
WARNING: Battery posts,
terminals, and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer. WASH
HANDS AFTER HANDLING. For
more information go to
www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition 65 Warning
0 289 and the back cover.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode. You
can be badly hurt if you are not
careful. See Jump Starting - North
(Continued)
Warning (Continued)
America0367 for tips on working
around a battery without
getting hurt.
Infrequent Usage: Remove the 12-volt
battery black, negative (−) cable from
the battery to keep the battery from
running down.
Extended Storage: Remove the 12-volt
battery black, negative (−) cable from
the battery or use a battery trickle
charger.
Remember to reconnect the battery
when ready to drive the vehicle.
All-Wheel Drive
If the vehicle is equipped with
All-Wheel Drive (AWD), this is an
additional system that needs
lubrication.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
330 VEHICLE CARE
FusesUsage
F26 Charge air coolant pump
F27 Engine control module ignition –2
F28 –
F29 –
Relays Usage
R1 Headlamp/Daytime running lamps
R2 Air conditioning control
R3 Starter motor
R4 Starter pinion
R5 Cabin heater pump
R6 Engine control module
R7 –
R8 –Instrument Panel Fuse
Block
The instrument panel fuse block is
behind the driver side instrument
panel storage compartment.
The storage compartment has a press
to open latch. To access the fuses,
open the compartment by pressing
and releasing near the top center
square.
Apply pressure to the two retaining
tabs on the sides of the compartment,
until the two retaining tabs clear the
sides of the instrument panel. Allow
the compartment to move downward,
and out of the way.
To reinstall the compartment, reverse
the steps.
The vehicle may not be equipped with
all of the fuses shown.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
366 VEHICLE CARE
8. Route the hook end of the strapthrough the wheel.
9. Attach the hook to the cargo tie-down in the rear of the
vehicle.
10. Tighten the strap.
The compact spare is for temporary
use only. Replace the compact spare
tire with a full-size tire as soon as
you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a crash
and you or others could be injured.
Use only one compact spare tire at
a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure regularly.
It should be 420 kPa (60 psi).
Caution
Exceeding the 80 km/h (50 mph)
maximum speed when a compact
spare assembly is installed can
damage the vehicle’s driveline
components. Stop as soon as possible and check
that the spare tire is correctly inflated
after being installed on the vehicle.
The compact spare tire is designed for
temporary use only. The vehicle will
perform differently with the spare tire
installed and it is recommended that
the vehicle speed be limited to
80 km/h (50 mph). To conserve the
tread of the spare tire, have the
standard tire repaired or replaced as
soon as convenient and return the
spare tire to the storage area.
When using a compact spare tire, the
AWD (if equipped), ABS, and Traction
Control systems may engage until the
spare tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible wheel slip.Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact spare
can get caught on the rails which
can damage the tire, wheel, and
other parts of the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
372 VEHICLE CARE
Recreational Vehicle
Towing
Caution
Do not tow this vehicle with two
wheels on the ground, or vehicle
damage could occur. This damage
would not be covered by the vehicle
warranty.
The vehicle was neither designed nor
intended to be towed with any of its
wheels on the ground. If the vehicle
must be towed, see Towing the Vehicle
0 370.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and Lubricants
0392.
Washing the Vehicle
To preserve the vehicle's finish, wash
it often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they
can damage the vehicle's paint,
metal, or plastic parts. If damage
occurs, it would not be covered by
the vehicle warranty. Approved
cleaning products can be obtained
from your dealer. Follow all
manufacturer directions regarding
(Continued)
Caution (Continued)
correct product usage, necessary
safety precautions, and appropriate
disposal of any vehicle care
product.
Caution
Avoid using high-pressure washes
closer than 30 cm (12 in) to the
surface of the vehicle. Use of power
washers exceeding 8,274 kPa
(1,200 psi) can result in damage or
removal of paint and decals.
Caution
Do not power wash any component
under the hood that has this
e
symbol.
This could cause damage that
would not be covered by the vehicle
warranty.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
426 INDEX
IndexA
Accessories and Modifications . . . . . 290
Accessory Power . . . . . . . . . . . . . . . . . . . . 206
Active Fuel Management . . . . . . . . . . . 208
Adaptive Cruise Control . . . . . . . . . . . . 229
Add-On Electrical Equipment . . . . . . 287
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . 65
Lumbar, Rear Seats . . . . . . . . . . . . . . . . . 74
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 66
Air Cleaner/Filter, Engine . . . . . . . . . . 304
Air Conditioning . . . . . . . . . . . . . . .175, 180
Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . . . 304
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . . . . . 187
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
How Does an Airbag Restrain? . . . . . 88
Passenger Sensing System . . . . . . . . . 90
What Makes an Airbag Inflate? . . . . 88
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 88 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Where Are the Airbags? . . . . . . . . . . . . 85
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Passenger Status Indicator . . . . . . . 138
Readiness Light . . . . . . . . . . . . . . . . . . . 138
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
System Check . . . . . . . . . . . . . . . . . . . . . . . 84
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 49
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . 271
Rear Pedestrian . . . . . . . . . . . . . . . . . . . 260
Side Blind Zone (SBZA) . . . . . . . . . . 270
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 340
All-Wheel Drive . . . . . . . . . . . . . . . .216, 317
Antilock Brake System (ABS) . . . . . . 217 Warning Light . . . . . . . . . . . . . . . . . . . . 143
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Armrest Storage . . . . . . . . . . . . . . . . . . . . . 115
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Assistance Systems for Driving . . . . 262

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INDEX 431
Infotainment System . . . . . . . . . . . . . . . 413
Instrument Cluster . . . . . . . . . . . .127, 130
Instrument PanelStorage Area . . . . . . . . . . . . . . . . . . . . . . 114
Instrument Panel Overview . . . . . . . . . . . 6
Interior Rearview Mirrors . . . . . . . . . . . 54
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 367
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 341
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Daytime Running (DRL) . . . . . . . . . . 168
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Exterior Controls . . . . . . . . . . . . . . . . . . 166
Exterior Lamps Off Reminder . . . . 168
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Lamps (cont'd)
On Reminder . . . . . . . . . . . . . . . . . . . . . . 149
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Lane Change Alert (LCA) . . . . . . . . . . . 271
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . . . . 272
Lane Keep Assist (LKA) . . . . . . . . . . . . 273
Lane Keep Assist Light . . . . . . . . . . . . . 144
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 79
LATCH System Replacing Parts after a Crash . . . . 108
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . 102
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 321
Lighter, Cigarette . . . . . . . . . . . . . . . . . . . 125
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Illumination Control . . . . . . . . . . . . . . 170
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 138
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . 143
Automatic Vehicle Hold . . . . . . . . . . 144
Brake System Warning . . . . . . 141, 142
Charging System . . . . . . . . . . . . . . . . . . 139 Lights (cont'd)
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 139
Cruise Control . . . . . . . . . . . . . . . . . . . . . 149
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Driver Mode Control . . . . . . . . . . . . . . 146
Electric Parking Brake . . . . . . . . . . . . 143
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 146
Engine Oil Pressure . . . . . . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 168
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 144
High-Beam On . . . . . . . . . . . . . . . . . . . . 148
High/Low Beam Changer . . . . . . . . . 168
Lane Keep Assist . . . . . . . . . . . . . . . . . . 144
Low Fuel Warning . . . . . . . . . . . . . . . . 148
Seat Belt Reminders . . . . . . . . . . . . . . 137
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Service Electric Parking Brake . . . 143
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 145
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 147
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 146
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 145
Locking Rear Axle . . . . . . . . . . . . . . . . . . 226
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . . . . . 40