2016 CADILLAC CT6 service

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Contents Introduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . 28
Seats and Restraints . . . . . . . . . . . 57
Storage . . . . . . . . . . . . . . . . . . . . . . . 106
Instruments and Controls . . . . . . 109
Lighting . . . . . . . . . . . . . . . . . . . . . . . 170
Infotainment System . . . . . . . . . . 177
Climate Controls . . . . . . . . . . . . . . 178
Driving and Operating . . . . . . . . . 191
Vehicle Care . . . . . . . . . . . . . . . . . . 261
Service and Maintenance . . . . . 342
Technical Data . . . . . . . . . . . . . . . . 357
Customer Information . . . . . . . . . 361
Reporting Safety Defects . . . . . . 371
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 375
Index . . . . . . . . . . . . . . . . . . . . 385

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
2 Introduction
Introduction The names, logos, emblems,
slogans, vehicle model names, and
vehicle body designs appearing in
this manual including, but not limited
to, GM, the GM logo, CADILLAC,
the CADILLAC Emblem, and CT 6
are trademarks and/or service
marks of General Motors LLC, its
subsidiaries, affiliates, or licensors.
For vehicles first sold in Canada,
substitute the name “ General
Motors of Canada Company ” for
Cadillac Motor Car Division
wherever it appears in this manual. This manual describes features that
may or may not be on the vehicle
because of optional equipment that
was not purchased on the vehicle,
model variants, country
specifications, features/applications
that may not be available in your
region, or changes subsequent to
the printing of this owner manual.
Refer to the purchase
documentation relating to your
specific vehicle to confirm the
features.
Keep this manual in the vehicle for
quick reference.
Canadian Vehicle Owners A French language manual can be
obtained from your dealer, at
www.helminc.com, or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de
ce guide en français auprès du
concessionnaire ou à l'adresse
suivante: Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Using this Manual To quickly locate information about
the vehicle, use the Index in the
back of the manual. It is an
alphabetical list of what is in the
manual and the page number where
it can be found.
Danger, Warning, and
Caution Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
Litho in U.S.A.
Part No. 22988376 A First Printing ©
2015 General Motors LLC. All Rights Reserved.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Introduction 3
{ DangerDanger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{ WarningWarning indicates a hazard that
could result in injury or death.
CautionCaution indicates a hazard that
could result in property or vehicle
damage. A circle with a slash through it is a
safety symbol which means “ Do
Not, ” “ Do not do this, ” or “ Do not let
this happen. ”
Symbols The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M : Shown when the owner
manual has additional instructions
or information.
* : Shown when the service
manual has additional instructions
or information.
0 : Shown when there is more
information on another page —
“ see page. ”
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index. 9 : Airbag Readiness Light
# : Air Conditioning
G : Air Conditioning Refrigerant Oil
! : Antilock Brake System (ABS)
g : Audio Steering Wheel Controls
or OnStar ®
(if equipped)
$ : Brake System Warning Light
I : Certified Technician
" : Charging System
I : Cruise Control
` : Do Not Puncture
^ : Do Not Service
B : Engine Coolant Temperature
O : Exterior Lamps
_ : Flame/Fire Prohibited
H : Flammable
. : Fuel Gauge
+ : Fuses
3 : Headlamp High/Low-Beam
Changer
( : Heated Steering Wheel
j : LATCH System Child Restraints

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
In Brief 5
In Brief Instrument Panel Instrument Panel Overview . . . . . . 6
Initial Drive Information Initial Drive Information . . . . . . . . . . 8
Stop/Start System . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Windows . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . 10
Memory Features . . . . . . . . . . . . . . 12
Second Row Seats . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . 14
Head Restraint Adjustment . . . . 14
Safety Belts . . . . . . . . . . . . . . . . . . . . 15
Passenger Sensing System . . . 15
Mirror Adjustment . . . . . . . . . . . . . . 15
Steering Wheel Adjustment . . . . 16
Interior Lighting . . . . . . . . . . . . . . . . 16
Exterior Lighting . . . . . . . . . . . . . . . 17
Windshield Wiper/Washer . . . . . . 18
Climate Controls . . . . . . . . . . . . . . . 19
Transmission . . . . . . . . . . . . . . . . . . 20 Vehicle Features Infotainment System . . . . . . . . . . . 20
Steering Wheel Controls . . . . . . . 20
Cruise Control . . . . . . . . . . . . . . . . . 20
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . 21
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . 21
Night Vision System . . . . . . . . . . . 21
Front Automatic Braking (FAB)
System . . . . . . . . . . . . . . . . . . . . . . . 22
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . 22
Lane Keep Assist (LKA) . . . . . . . 22
Lane Change Alert (LCA) . . . . . . 22
Surround Vision . . . . . . . . . . . . . . . 22
Rear Vision Camera (RVC) . . . . 23
Rear Cross Traffic Alert (RCTA)
System . . . . . . . . . . . . . . . . . . . . . . . 23
Parking Assist . . . . . . . . . . . . . . . . . 23
Automatic Parking
Assist (APA) . . . . . . . . . . . . . . . . . . 23
Rear Automatic Braking (RAB)
System . . . . . . . . . . . . . . . . . . . . . . . 23
Surround Vision Recorder . . . . . 24
Power Outlets . . . . . . . . . . . . . . . . . 24
Universal Remote System . . . . . 24
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 24 Performance and Maintenance Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . 25
Tire Pressure Monitor . . . . . . . . . . 26
Engine Oil Life System . . . . . . . . 26
Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . . . 27
Roadside Service . . . . . . . . . . . . . . 27

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
In Brief 27The oil life system can also be reset
as follows:
1. Turn the ignition on with the
engine off.
2. Fully press and release the
accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL
SOON message is not on, the
system is reset.
See Engine Oil Life System 0 272 .
Driving for Better Fuel
Economy Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.
Avoid fast starts and accelerate
smoothly.
.
Brake gradually and avoid
abrupt stops.
.
Avoid idling the engine for long
periods of time. .
When road and weather
conditions are appropriate, use
cruise control.
.
Always follow posted speed
limits or drive more slowly when
conditions require.
.
Keep vehicle tires properly
inflated.
.
Combine several trips into a
single trip.
.
Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.
Follow recommended scheduled
maintenance. Roadside Service U.S.: 1-800-224-1400
Canada: 1-800-882-1112
TTY Users (U.S. Only):
1-888-889-2438
New Cadillac owners are
automatically enrolled in the
Roadside Service Program.
See Roadside Service 0 364 .

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 29
This key, inside the Remote Keyless
Entry (RKE) transmitter, is used for
the driver door. To remove the key, press the button
on the side of the transmitter near
the bottom, and pull the key out.
Never pull the key out without
pressing the button.
See your dealer if a new key is
needed.
Contact Roadside Service if locked
out of the vehicle. See Roadside
Service 0 364 .
With an active OnStar subscription,
an OnStar Advisor may remotely
unlock the vehicle. See OnStar
Overview 0 375 .
Remote Keyless Entry
(RKE) System See Radio Frequency
Statement 0 371 .
If there is a decrease in the RKE
operating range:
.
Check the distance. The
transmitter may be too far from
the vehicle.
.
Check the location. Other
vehicles or objects may be
blocking the signal. .
Check the transmitter's battery.
See “ Battery Replacement ” later
in this section.
.
If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation The Keyless Access system allows
for vehicle entry when the
transmitter is within 1 m (3 ft). See
“ Keyless Access Operation ” later in
this section.
The RKE transmitter may work up to
60 m (197 ft) away from the vehicle.
Keep in mind that other conditions,
such as those previously stated, can
impact the performance of the
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 47The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the pushbutton start
is activated to enter the ACC/
ACCESSORY mode or the ON/
RUN/START mode and a valid
transmitter is present in the vehicle.
The security light, in the instrument
cluster, comes on if there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle. When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, ON/
RUN/START, OFF), and the RKE
transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
located in the center console. See
Key and Lock Messages 0 150 .
If the ignition modes will not change
with the other transmitter, your
vehicle needs service. If the ignition
does change modes, the first
transmitter may be faulty. See the
dealer.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see “ Programming Transmitters to the Vehicle ” under
Remote Keyless Entry (RKE)
System Operation 0 29 .
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Keys, Doors, and Windows 51
The camera that provides the Rear
Camera Mirror (RCM) image is
above the license plate, next to the
Rear Vision Camera (RVC).
Troubleshooting
If the tab is in the rearward position
and a blue screen and
d are
displayed in the mirror and the
display shuts off, see your dealer for
service. The RCM may not work properly or
display a clear image if:
.
There is glare from the sun or
headlamps. This may obstruct
objects from view.
.
Dirt, snow, or other debris blocks
the camera lens. Clean the lens
with a soft damp cloth.
.
The back of the vehicle has
been damaged and the position
and mounting angle of the
camera has changed.
Windows
{ WarningNever leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a