
Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Vehicle Care 339Coated Moldings Coated moldings should be cleaned.
.
When lightly soiled, wipe with a
sponge or soft, lint-free cloth
dampened with water.
.
When heavily soiled, use warm
soapy water.
Fabric/Carpet/Suede Start by vacuuming the surface
using a soft brush attachment. If a
rotating vacuum brush attachment is
being used, only use it on the floor
carpet. Before cleaning, gently
remove as much of the soil as
possible:
.
Gently blot liquids with a paper
towel. Continue blotting until no
more soil can be removed.
.
For solid soils, remove as much
as possible prior to vacuuming.
To clean:
1. Saturate a clean, lint-free
colorfast cloth with water.
Microfiber cloth is
recommended to prevent lint
transfer to the fabric or carpet. 2. Remove excess moisture by
gently wringing until water does
not drip from the cleaning cloth.
3. Start on the outside edge of the
soil and gently rub toward the
center. Fold the cleaning cloth
to a clean area frequently to
prevent forcing the soil in to the
fabric.
4. Continue gently rubbing the
soiled area until there is no
longer any color transfer from
the soil to the cleaning cloth.
5. If the soil is not completely
removed, use a mild soap
solution followed only by plain
water.
If the soil is not completely
removed, it may be necessary to
use a commercial upholstery
cleaner or spot lifter. Test a small
hidden area for colorfastness before
using a commercial upholstery
cleaner or spot lifter. If ring
formation occurs, clean the entire
fabric or carpet.
After cleaning, use a paper towel to
blot excess moisture. Cleaning High Gloss Surfaces
and Vehicle Information and
Radio Displays Use a microfiber cloth on high gloss
surfaces or vehicle displays. First,
use a soft bristle brush to remove
dirt that can scratch the surface.
Then gently clean by rubbing with a
microfiber cloth. Never use window
cleaners or solvents. Periodically
hand wash the microfiber cloth
separately, using mild soap. Do not
use bleach or fabric softener. Rinse
thoroughly and air dry before
next use.
CautionDo not attach a device with a
suction cup to the display. This
may cause damage and would
not be covered by the vehicle
warranty.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Customer Information 361
Customer
Information Customer Information Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . 361
Customer Assistance
Offices . . . . . . . . . . . . . . . . . . . . . . 363
Customer Assistance for Text
Telephone (TTY) Users . . . . . 364
Online Owner Center . . . . . . . . . 364
Roadside Service . . . . . . . . . . . . . 364
Scheduling Service
Appointments . . . . . . . . . . . . . . . 367
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . 367
Collision Damage Repair . . . . . 368
Service Publications Ordering
Information . . . . . . . . . . . . . . . . . . 370
Radio Frequency
Statement . . . . . . . . . . . . . . . . . . . 371
Reporting Safety Defects Reporting Safety Defects to
the United States
Government . . . . . . . . . . . . . . . . . 371
Reporting Safety Defects to
the Canadian
Government . . . . . . . . . . . . . . . . . 372 Reporting Safety Defects to
General Motors . . . . . . . . . . . . . 372
Vehicle Data Recording and
Privacy Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . 372
Event Data Recorders . . . . . . . . 373
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 373
Infotainment System . . . . . . . . . . 374
Customer Information Customer Satisfaction
Procedure Your satisfaction and goodwill are
important to your dealer and to
Cadillac. Normally, any concerns
with the sales transaction or the
operation of the vehicle will be
resolved by your dealer's sales or
service departments. Sometimes,
however, despite the best intentions
of all concerned, misunderstandings
can occur. If your concern has not
been resolved to your satisfaction,
the following steps should be taken:
STEP ONE : Discuss your concern
with a member of dealership
management. Normally, concerns
can be quickly resolved at that level.
If the matter has already been
reviewed with the sales, service or
parts manager, contact the owner of
your dealership or the general
manager.
STEP TWO : If after contacting a
member of dealership management,
it appears your concern cannot be

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
364 Customer Information Overseas Contact the local General Motors
Business Unit.
Customer Assistance for
Text Telephone (TTY)
Users To assist customers who are deaf,
hard of hearing, or speech-impaired
and who use Text Telephones
(TTYs), Cadillac has TTY equipment
available at its Customer Assistance
Center. Any TTY user can
communicate with Cadillac by
dialing: 1-800-833-2622. TTY users
in Canada can dial 1-800-263-3830.
Online Owner Center Online Owner Experience
(U.S.) my.cadillac.com
The Cadillac online owner
experience allows interaction with
Cadillac and keeps important
vehicle-specific information in one
place. Membership Benefits
E : Download owner manuals and
view vehicle-specific how-to videos.
G : View maintenance schedules,
alerts, and OnStar onboard vehicle
diagnostic information. Schedule
service appointments.
I : View printable dealer-recorded
service records and self-recorded
service records.
D : Select a dealer and view
locations, maps, phone numbers,
and hours.
r : Track your vehicle ’ s warranty
information.
J : View active recalls or search by
Vehicle Identification Number (VIN).
See Vehicle Identification Number
(VIN) 0 357
or Vehicle Identification Number
(VIN) 0 357 .
H : View GM Card, SiriusXM
Satellite radio (if equipped), and
OnStar account information.
F : Chat with online help
representatives. See my.cadillac.com to register your
vehicle.
Cadillac Owner Centre
(Canada) cadillacowner.ca Visit the Cadillac Owner Centre:
.
Chat live with online help
representatives.
.
Locate owner resources such as
lease-end, financing, and
warranty information.
.
Retrieve favorite articles,
quizzes, tips, and multimedia
galleries organized into the
Featured Articles and Auto Care
Sections.
.
Download owner manuals.
.
Find Cadillac-recommended
maintenance services.
Roadside Service U.S.: 1-800-224-1400.
Canada: 1-800-882-1112.
Text Telephone (TTY) Users (U.S.
Only): 1-888-889-2438.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Customer Information 371ORDER TOLL FREE:
1-800-551-4123 Monday – Friday
8:00 AM – 6:00 PM Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), see
Helm, Inc. at: www.helminc.com.
Or write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Prices are subject to change without
notice and without incurring
obligation. Allow ample time for
delivery.
All listed prices are quoted in U.S.
funds. Make checks payable in U.S.
funds.
Radio Frequency
Statement This vehicle has systems that
operate on a radio frequency that
complies with Part 15/Part 18 of the
Federal Communications
Commission (FCC) rules and with Industry Canada Standards
RSS-GEN/210/216/220/251/310,
ICES ‐ 001.
Operation is subject to the following
two conditions:
1. The device may not cause
harmful interference.
2. The device must accept any
interference received, including
interference that may cause
undesired operation of the
device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment. Reporting Safety
Defects Reporting Safety Defects
to the United States
Government If you believe that your vehicle
has a defect which could cause
a crash or could cause injury or
death, you should immediately
inform the National Highway
Traffic Safety Administration
(NHTSA) in addition to notifying
General Motors.
If NHTSA receives similar
complaints, it may open an
investigation, and if it finds that
a safety defect exists in a group
of vehicles, it may order a recall
and remedy campaign.
However, NHTSA cannot
become involved in individual
problems between you, your
dealer, or General Motors.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
372 Customer Information To contact NHTSA, you may call
the Vehicle Safety Hotline
toll-free at 1-888-327-4236 (TTY:
1-800-424-9153); go to http://
www.safercar.gov; or write to:
Administrator, NHTSA
1200 New Jersey Avenue, S.E.
Washington, D.C. 20590
You can also obtain other
information about motor vehicle
safety from http://
www.safercar.gov .
Reporting Safety Defects
to the Canadian
Government If you live in Canada, and you
believe that the vehicle has a safety
defect, notify Transport Canada
immediately, and notify General
Motors of Canada Company. Call
Transport Canada at
1-800-333-0510 or write to:
Transport Canada
Road Safety Branch
80 rue Noel
Gatineau, QC J8Z 0A1 Reporting Safety Defects
to General Motors In addition to notifying NHTSA (or
Transport Canada) in a situation like
this, notify General Motors.
Call 1-800-458-8006, or write:
Cadillac Customer Assistance
Center
Cadillac Motor Car Division
P.O. Box 33169
Detroit, MI 48232-5169
In Canada, call 1-888-446-2000,
or write:
Canadian Cadillac Customer Care
Centre, Mail Code: CA1-163-005
General Motors of Canada
Company
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7 Vehicle Data
Recording and
Privacy The vehicle has a number of
computers that record information
about the vehicle ’ s performance and
how it is driven. For example, the
vehicle uses computer modules to
monitor and control engine and
transmission performance, to
monitor the conditions for airbag
deployment and deploy them in a
crash, and, if equipped, to provide
antilock braking to help the driver
control the vehicle. These modules
may store data to help the dealer
technician service the vehicle.
Some modules may also store data
about how the vehicle is operated,
such as rate of fuel consumption or
average speed. These modules may
retain personal preferences, such as
radio presets, seat positions, and
temperature settings.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
380 OnStar Reactivation for Subsequent
Owners Press
Q and follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
service options.
How OnStar Service Works Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance,
Advanced Diagnostics, Remote
Services, Roadside Assistance,
Turn-by-Turn Navigation, and
Hands-Free Calling are available on
most vehicles. Not all OnStar
services are available everywhere
or on all vehicles. For more
information, a full description of
OnStar services, system limitations,
and OnStar terms and conditions:
.
Call 1-888-4ONSTAR
(1-888-466-7827).
.
See www.onstar.com (U.S.).
.
See www.onstar.ca (Canada).
.
Call TTY 1-877-248-2080. .
Press
Q to speak with an
Advisor.
OnStar services cannot work unless
the vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area. The wireless service
provider must also have coverage,
network capacity, reception, and
technology compatible with OnStar
services. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar services may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar services may
not work. Other problems beyond
the control of OnStar — such as
hills, tall buildings, tunnels, weather,
electrical system design and
architecture of the vehicle, damage
to the vehicle in a crash, or wireless
phone network congestion or
jamming — may prevent service. See Radio Frequency
Statement 0 371 .
Services for People with
Disabilities Advisors provide services to help
Subscribers with physical disabilities
and medical conditions.
Press
Q to help:
.
Locate a gas station with an
attendant to pump gas.
.
Find a hotel, restaurant, etc.,
that meets accessibility needs.
.
Provide directions to the closest
hospital or pharmacy in urgent
situations.
TTY Users OnStar has the ability to
communicate to deaf,
hard-of-hearing, or speech-impaired
customers while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle
access to all OnStar services,
except Virtual Advisor and OnStar
Turn-by-Turn Navigation.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
382 OnStar Add-on Electrical Equipment The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment 0 260 . Added electrical
equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
OnStar Hands-Free Calling name
tags, saved navigation destinations,
or pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or
settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehicle
system status, identify whether
updates or changes are available,
or deliver updates or changes. An
active OnStar agreement constitutes
consent to these software updates
or changes and agreement that
either OnStar or GM may remotely
deliver them to the vehicle.
Privacy The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4ONSTAR (1-888-466-7827)
or press
Q to speak with an
Advisor. Users of wireless
communications are cautioned that
the privacy of any information sent
via wireless cellular communications
cannot be assured. Third parties may unlawfully intercept or access
transmissions and private
communications without consent.
OnStar - Software
Acknowledgements Certain OnStar components include
libcurl and unzip software and other
third party software. Below are the
notices and licenses associated with
libcurl and unzip and for other third
party software please see http://
www.lg.com/global/support/
opensource/index and https://
www.onstar.com/us/en/support/
getdocuments.html
libcurl:
COPYRIGHT AND PERMISSION
NOTICE
Copyright (c) 1996 - 2010, Daniel
Stenberg,
All rights reserved.
Permission to use, copy, modify,
and distribute this software for any
purpose with or without fee is
hereby granted, provided that the

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
388 Index E Electric Parking Brake . . . . . . . . . . 214
Electric Parking Brake Light . . . . 134
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 260
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 290
Fuses and Circuit Breakers . . . 290
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 293
Overload . . . . . . . . . . . . . . . . . . . . . 289
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 295
Emergency
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 376
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 273
Check and Service Engine
Soon Light . . . . . . . . . . . . . . . . . . 132
Compartment Overview . . . . . . . 265
Coolant . . . . . . . . . . . . . . . . . . . . . . . 277
Coolant Heater . . . . . . . . . . . . . . . 206
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 128 Engine (cont'd)
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 137
Cooling System . . . . . . . . . . . . . . . 275
Cooling System Messages . . . 149
Drive Belt Routing . . . . . . . . . . . . 360
Exhaust . . . . . . . . . . . . . . . . . . . . . . 209
Oil Life System . . . . . . . . . . . . . . . 272
Oil Messages . . . . . . . . . . . . . . . . . 149
Oil Pressure Gauge . . . . . . . . . . 126
Oil Pressure Light . . . . . . . . . . . . 138
Overheating . . . . . . . . . . . . . . . . . . 280
Power Messages . . . . . . . . . . . . . 150
Running While Parked . . . . . . . . 210
Starting . . . . . . . . . . . . . . . . . . . . . . . 204
Engine Oil
Temperature Gauge . . . . . . . . . . 127
Entry Lighting . . . . . . . . . . . . . . . . . . . 175
Equipment, Towing . . . . . . . . . . . . . 259
Event Data Recorders . . . . . . . . . . 373
Exit Lighting . . . . . . . . . . . . . . . . . . . . 176
Extender, Safety Belt . . . . . . . . . . . . 75
Exterior Lamp Controls . . . . . . . . . 170
Exterior Lamps Off Reminder . . . 172
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 176 F Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 273
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 172
Flashers, Hazard Warning . . . . . . 173
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 320
Changing . . . . . . . . . . . . . . . . . . . . . 321
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 341
Fluid
Automatic Transmission . . . . . . 273
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 283
Washer . . . . . . . . . . . . . . . . . . . . . . . 281
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 237
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 371
Front Automatic Braking
(FAB) System . . . . . . . . . . . . . . . . . 240
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 241
Front Seats
Heated and Ventilated . . . . . . . . . . 64
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Additives . . . . . . . . . . . . . . . . . . . . . 253
Economy Driving . . . . . . . . . . . . . . . 27