ECU CADILLAC CT6 2016 Workshop Manual

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
OnStar 383above copyright notice and this
permission notice appear in all
copies.
THE SOFTWARE IS PROVIDED
“ AS IS, ” WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE
AND NONINFRINGEMENT OF
THIRD PARTY RIGHTS. IN NO
EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF
CONTRACT, TORT OR
OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN
THE SOFTWARE.
Except as contained in this notice,
the name of a copyright holder shall
not be used in advertising or
otherwise to promote the sale, use
or other dealings in this Software
without prior written authorization of
the copyright holder. unzip:
This is version 2005-Feb-10 of the
Info-ZIP copyright and license. The
definitive version of this document
should be available at ftp://
ftp.info-zip.org/pub/infozip/
license.html indefinitely.
Copyright (c) 1990-2005 Info-ZIP. All
rights reserved.
For the purposes of this copyright
and license, “ Info-ZIP ” is defined as
the following set of individuals:
Mark Adler, John Bush, Karl Davis,
Harald Denker, Jean-Michel Dubois,
Jean-loup Gailly, Hunter Goatley, Ed
Gordon, Ian Gorman, Chris
Herborth, Dirk Haase, Greg Hartwig,
Robert Heath, Jonathan Hudson,
Paul Kienitz, David Kirschbaum,
Johnny Lee, Onno van der Linden,
Igor Mandrichenko, Steve P. Miller,
Sergio Monesi, Keith Owens,
George Petrov, Greg Roelofs, Kai
Uwe Rommel, Steve Salisbury,
Dave Smith, Steven M. Schweda,
Christian Spieler, Cosmin Truta,
Antoine Verheijen, Paul von Behren,
Rich Wales, Mike White. This software is provided “ as is, ”
without warranty of any kind,
express or implied. In no event shall
Info-ZIP or its contributors be held
liable for any direct, indirect,
incidental, special or consequential
damages arising out of the use of or
inability to use this software.
Permission is granted to anyone to
use this software for any purpose,
including commercial applications,
and to alter it and redistribute it
freely, subject to the following
restrictions:
1. Redistributions of source code
must retain the above copyright
notice, definition, disclaimer,
and this list of conditions.
2. Redistributions in binary form
(compiled executables) must
reproduce the above copyright
notice, definition, disclaimer,
and this list of conditions in
documentation and/or other
materials provided with the
distribution. The sole exception
to this condition is redistribution
of a standard UnZipSFX binary
(including SFXWiz) as part of a

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Index 385
Index A Accessories and
Modifications . . . . . . . . . . . . . . . . . . 262
Accessory Power . . . . . . . . . . . . . . . 206
Adaptive Cruise Control . . . . . . . . 223
Add-On Electrical Equipment . . . 260
Additional Information
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 379
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 350
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 60
Lumbar, Rear Seats . . . . . . . . . . . . 68
Thigh Support . . . . . . . . . . . . . . . . . . 61
Air Cleaner/Filter, Engine . . . . . . . 273
Air Conditioning . . . . . . . . . . . 178, 185
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 190
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 189
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 87
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 80
Passenger Sensing System . . . . 82
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 80
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 81 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 79
Where Are the Airbags? . . . . . . . . 78
Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 86
Passenger Status Indicator . . . 130
Readiness Light . . . . . . . . . . . . . . 130
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 86
System Check . . . . . . . . . . . . . . . . . . 76
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 44
Alert
Lane Change . . . . . . . . . . . . . . . . . 246
Side Blind Zone (SBZA) . . . . . . 246
All-Season Tires . . . . . . . . . . . . . . . . 300
All-Wheel Drive . . . . . . . . . . . . 213, 284
Antilock Brake System (ABS) . . . 214
Warning Light . . . . . . . . . . . . . . . . . 135
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 333
Interior . . . . . . . . . . . . . . . . . . . . . . . . 338
Armrest
Rear Seat . . . . . . . . . . . . . . . . . . . . . . 68
Armrest Storage . . . . . . . . . . . . . . . . 107

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
386 Index Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . . . 237
Assistance Systems for
Parking and Backing . . . . . . . . . . 231
Auto Stop Mode . . . . . . . . . . . . . . . . 139
Automatic
Climate Control
System . . . . . . . . . . . . . . . . . 178, 185
Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Headlamp System . . . . . . . . . . . . 172
Transmission . . . . . . . . . . . . . . . . . 210
Transmission Fluid . . . . . . . . . . . 273
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 212
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 285
Automatic Vehicle
Hold (AVH) . . . . . . . . . . . . . . . . . . . . 217
B Battery
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 176
Power Protection . . . . . . . . . . . . . 176
Voltage and Charging
Messages . . . . . . . . . . . . . . . . . . . 147
Battery - North America . . . . 284, 327
Blade Replacement, Wiper . . . . . 286
Boost Gauge . . . . . . . . . . . . . . . . . . . 125 Brake
Parking, Electric . . . . . . . . . . . . . . 214
System Warning Light . . . . . . . . 133
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Antilock . . . . . . . . . . . . . . . . . . . . . . . 214
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 216
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 283
System Messages . . . . . . . . . . . . 147
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 193
Braking System
Front Pedestrian (FPB) . . . . . . . 241
Break-In, New Vehicle . . . . . . . . . . 202
Bulb Replacement . . . . . . . . . . . . . . 289
Headlamp Aiming . . . . . . . . . . . . . 287
Headlamps . . . . . . . . . . . . . . . . . . . 288
License Plate Lamps . . . . . . . . . 288
Buying New Tires . . . . . . . . . . . . . . . 315
C Cadillac Premium Care
Maintenance . . . . . . . . . . . . . . . . . . 344
Calibration . . . . . . . . . . . . . . . . . . . . . . 113
California
Fuel Requirements . . . . . . . . . . . 253
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 262
California
Proposition
65 Warning . . . . . . . . . .262, 284, 327 Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 358
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 209
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Winter Driving . . . . . . . . . . . . . . . . 197
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . 108
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 107
Chains, Tire . . . . . . . . . . . . . . . . . . . . 319
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . .115
Charging System Light . . . . . . . . . 131
Check
Malfunction Indicator
Engine Light . . . . . . . . . . . . . . . . 132
Child Restraints
Infants and Young Children . . . . . 90
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 95
Older Children . . . . . . . . . . . . . . . . . . 88
Securing . . . . . . . . . . . . . . . . . 101, 103
Systems . . . . . . . . . . . . . . . . . . . . . . . . 92
Circuit Breakers . . . . . . . . . . . . . . . . 290
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 333

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
390 Index Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . 106
Instrument Panel Overview . . . . . . . 6
Interior Rearview Mirrors . . . . . . . . . 49
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 327
K Key and Lock Messages . . . . . . . . 150
Keyless Entry
Remote (RKE) System . . . . . . . . . 29
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
L Labeling, Tire Sidewall . . . . . . . . . . 301
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 174
Daytime Running (DRL) . . . . . . 172
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 174
Exterior Controls . . . . . . . . . . . . . . 170
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 172
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 176
License Plate . . . . . . . . . . . . . . . . . 288
Malfunction Indicator . . . . . . . . . 132
Messages . . . . . . . . . . . . . . . . . . . . 151 Lamps (cont'd)
On Reminder . . . . . . . . . . . . . . . . . 139
Reading . . . . . . . . . . . . . . . . . . . . . . 175
Lane Change Alert (LCA) . . . . . . . 246
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 248
Lane Keep Assist (LKA) . . . . . . . . 248
Lane Keep Assist Light . . . . . . . . . 135
Lap-Shoulder Belt . . . . . . . . . . . . . . . 72
LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 100
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 95
LED Lighting . . . . . . . . . . . . . . . . . . . . 288
Light, Auto Stop Mode . . . . . . . . . . 139
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 175
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Illumination Control . . . . . . . . . . . 174
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Airbag Readiness . . . . . . . . . . . . . 130
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 135
Brake System Warning . . . . . . . 133
Charging System . . . . . . . . . . . . . 131
Cruise Control . . . . . . . . . . . . . . . . 140 Lights (cont'd)
Door Ajar . . . . . . . . . . . . . . . . . . . . . 140
Electric Parking Brake . . . . . . . . 134
Engine Coolant
Temperature Warning . . . . . . . 137
Engine Oil Pressure . . . . . . . . . . 138
Flash-to-Pass . . . . . . . . . . . . . . . . . 172
High-Beam On . . . . . . . . . . . . . . . . 139
High/Low Beam Changer . . . . . 172
Low Fuel Warning . . . . . . . . . . . . 138
Safety Belt Reminders . . . . . . . . 129
Security . . . . . . . . . . . . . . . . . . . . . . 139
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 134
StabiliTrak ®
OFF . . . . . . . . . . . . . 136
Tire Pressure . . . . . . . . . . . . . . . . . 137
Traction Control System
(TCS)/StabiliTrak ®
. . . . . . . . . . 137
Traction Off . . . . . . . . . . . . . . . . . . . 136
Locks
Automatic Door . . . . . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . . 39
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Lockout Protection . . . . . . . . . . . . . . 39
Power Door . . . . . . . . . . . . . . . . . . . . . 39
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Loss of Control . . . . . . . . . . . . . . . . . 195
Low Fuel Warning Light . . . . . . . . . 138

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Index 391Low-Profile Tires . . . . . . . . . . . . . . . . 300
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 95
Lumbar Adjustment . . . . . . . . . . 60, 68
Front Seats . . . . . . . . . . . . . . . . . . . . . 60
Rear Seats . . . . . . . . . . . . . . . . . . . . . 68
M Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 356
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 350
Maintenance Schedule . . . . . . . . . 344
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 353
Malfunction Indicator Lamp . . . . . 132
Manual Mode . . . . . . . . . . . . . . . . . . . 212
Massage . . . . . . . . . . . . . . . . . . . . . . . . 66
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 63
Messages
Airbag System . . . . . . . . . . . . . . . . 154
Battery Voltage and
Charging . . . . . . . . . . . . . . . . . . . . 147
Brake System . . . . . . . . . . . . . . . . 147
Compass . . . . . . . . . . . . . . . . . . . . . 148
Door Ajar . . . . . . . . . . . . . . . . . . . . . 148
Engine Cooling System . . . . . . . 149 Messages (cont'd)
Engine Oil . . . . . . . . . . . . . . . . . . . . 149
Engine Power . . . . . . . . . . . . . . . . 150
Fuel System . . . . . . . . . . . . . . . . . . 150
Key and Lock . . . . . . . . . . . . . . . . . 150
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 151
Object Detection System . . . . . 151
Ride Control System . . . . . . . . . . 154
Safety Belt . . . . . . . . . . . . . . . . . . . . 154
Security . . . . . . . . . . . . . . . . . . . . . . 155
Service Vehicle . . . . . . . . . . . . . . . 155
Starting the Vehicle . . . . . . . . . . . 156
Steering System . . . . . . . . . . . . . . 155
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Transmission . . . . . . . . . . . . . . . . . 156
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 146
Vehicle Reminder . . . . . . . . . . . . . 157
Vehicle Speed . . . . . . . . . . . . . . . . 157
Washer Fluid . . . . . . . . . . . . . . . . . 157
Window . . . . . . . . . . . . . . . . . . . . . . . 157
Mirror
Rear Camera . . . . . . . . . . . . . . . . . . . 50
Mirrors
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 49
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 48
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 49
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Mirrors (cont'd)
Tilt in Reverse . . . . . . . . . . . . . . . . . . 49
Mirrors, Interior Rearview . . . . . . . . 49
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Driver Control . . . . . . . . . . . . . . . . . 219
Monitor System, Tire
Pressure . . . . . . . . . . . . . . . . . . . . . . 308
N Navigation
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 376
Net, Convenience . . . . . . . . . . . . . . 108
New Vehicle Break-In . . . . . . . . . . . 202
Night Vision System . . . . . . . . . . . . 243
O Object Detection System
Messages . . . . . . . . . . . . . . . . . . . . . 151
Odometer . . . . . . . . . . . . . . . . . . . . . . . 124
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . 194
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 270
Engine Oil Life System . . . . . . . 272
Engine Oil Pressure Gauge . . . 126
Messages . . . . . . . . . . . . . . . . . . . . 149
Pressure Light . . . . . . . . . . . . . . . . 138
Older Children, Restraints . . . . . . . 88

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
392 Index Online Owner Center . . . . . . . . . . . 364
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 373
OnStar ®
Additional
Information . . . . . . . . . . . . . . . . . . . . 379
OnStar ®
Connections . . . . . . . . . . . 377
OnStar ®
Diagnostics . . . . . . . . . . . . 379
OnStar ®
Emergency . . . . . . . . . . . . 376
OnStar ®
Navigation . . . . . . . . . . . . . 376
OnStar ®
Overview . . . . . . . . . . . . . . 375
OnStar ®
Security . . . . . . . . . . . . . . . 376
Ordering
Service Publications . . . . . . . . . . 370
Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . .114
Overheating, Engine . . . . . . . . . . . . 280
P Park
Shifting Into . . . . . . . . . . . . . . . . . . . 207
Shifting Out of . . . . . . . . . . . . . . . . 208
Parking
Brake and P (Park)
Mechanism Check . . . . . . . . . . 286
Over Things That Burn . . . . . . . 209
Parking or Backing
Assistance Systems . . . . . . . . . . 231
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 130 Passenger Compartment Air
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Passenger Sensing System . . . . . 82
Pedestrian Ahead Indicator . . . . . 136
Perchlorate Materials
Requirements, California . . . . . . 262
Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 157
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . 39
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Outlets . . . . . . . . . . . . . . . . . . . . . . . .114
Protection, Battery . . . . . . . . . . . . 176
Retained Accessory (RAP) . . . 206
Seat Adjustment . . . . . . . . . . . . . . . . 60
Windows . . . . . . . . . . . . . . . . . . . . . . . 52
Pregnancy, Using Safety Belts . . . 74
Premium Care Maintenance
Cadillac . . . . . . . . . . . . . . . . . . . . . . . 344
Privacy
Vehicle Data Recording . . . . . . . 372
Program
Courtesy Transportation . . . . . . 367
Proposition
65 Warning,
California . . . . . . . . . . . .262, 284, 327 R Radio Frequency Statement . . . . 371
Reading Lamps . . . . . . . . . . . . . . . . . 175
Rear Camera Mirror . . . . . . . . . . . . . 50
Rear Seat Armrest . . . . . . . . . . . . . . . 68
Rear Seat Pass-Through Door . . . 69
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 66
Heated and Ventilated . . . . . . . . . . 69
Rear Storage . . . . . . . . . . . . . . . . . . . 107
Rear Window Sunshade . . . . . . . . . 54
Rearview Mirrors
Automatic Dimming . . . . . . . . . . . . . 49
Reclining Seatbacks . . . . . . . . . . . . . 62
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 353
Recorder
Video . . . . . . . . . . . . . . . . . . . . . . . . . 250
Records
Maintenance . . . . . . . . . . . . . . . . . . 356
Recreational Vehicle Towing . . . . 331
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . . . 36
Replacement Bulbs . . . . . . . . . . . . . 289
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 87
Maintenance . . . . . . . . . . . . . . . . . . 354
Replacing Airbag System . . . . . . . . 87

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Index 393Replacing LATCH System
Parts after a Crash . . . . . . . . . . . . 100
Replacing Safety Belt System
Parts after a Crash . . . . . . . . . . . . . 75
Reporting Safety Defects
Canadian Government . . . . . . . . 372
General Motors . . . . . . . . . . . . . . . 372
U.S. Government . . . . . . . . . . . . . 371
Restraints
Where to Put . . . . . . . . . . . . . . . . . . . 94
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . 206
Reverse Tilt Mirrors . . . . . . . . . . . . . . 49
Ride Control Systems
Messages . . . . . . . . . . . . . . . . . . . . 154
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . 195
Roadside Service . . . . . . . . . . . . . . . 364
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rotation, Tires . . . . . . . . . . . . . . . . . . 313
Routing, Engine Drive Belt . . . . . . 360
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . 210 S Safety Belts . . . . . . . . . . . . . . . . . . . . . 70
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Extender . . . . . . . . . . . . . . . . . . . . . . . . 75
How to Wear Safety Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . 71
Lap-Shoulder Belt . . . . . . . . . . . . . . 72
Messages . . . . . . . . . . . . . . . . . . . . 154
Reminders . . . . . . . . . . . . . . . . . . . . 129
Replacing after a Crash . . . . . . . . 75
Use During Pregnancy . . . . . . . . . . 74
Safety Defects Reporting
Canadian Government . . . . . . . . 372
General Motors . . . . . . . . . . . . . . . 372
U.S. Government . . . . . . . . . . . . . 371
Safety Locks . . . . . . . . . . . . . . . . . . . . . 40
Safety System Check . . . . . . . . . . . . 75
Scheduling Appointments . . . . . . . 367
Seats
Head Restraints . . . . . . . . . . . . . . . . 58
Heated and Ventilated Front . . . . 64
Heated and Ventilated, Rear . . . . 69
Lumbar Adjustment, Front . . . . . . 60
Lumbar Adjustment, Rear . . . . . . 68
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 63
Power Adjustment, Front . . . . . . . 60
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Reclining Seatbacks . . . . . . . . . . . . 62 Securing Child
Restraints . . . . . . . . . . . . . . . . 101, 103
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Messages . . . . . . . . . . . . . . . . . . . . 155
OnStar ®
. . . . . . . . . . . . . . . . . . . . . . 376
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 44
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 44
Service . . . . . . . . . . . . . . . . . . . . . . . . . 190
Accessories and
Modifications . . . . . . . . . . . . . . . . 262
Doing Your Own Work . . . . . . . . 263
Engine Soon Light . . . . . . . . . . . . 132
Maintenance Records . . . . . . . . 356
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 342
Parts Identification Label . . . . . 357
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 370
Scheduling Appointments . . . . . 367
Vehicle Messages . . . . . . . . . . . . 155
Service Electric Parking
Brake Light . . . . . . . . . . . . . . . . . . . . 134
Services
Special Application . . . . . . . . . . . 349
Servicing the Airbag . . . . . . . . . . . . . 86

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -
2016 - crc - 11/6/15
Index 395Tires (cont'd)
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 314
Winter . . . . . . . . . . . . . . . . . . . . . . . . 300
Towing
Driving Characteristics . . . . . . . . 255
Equipment . . . . . . . . . . . . . . . . . . . . 259
General Information . . . . . . . . . . 255
Recreational Vehicle . . . . . . . . . . 331
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 258
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 330
Traction
Control System (TCS)/
StabiliTrak ®
Light . . . . . . . . . . . . 137
Off Light . . . . . . . . . . . . . . . . . . . . . . 136
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . 217
Trailer
Towing . . . . . . . . . . . . . . . . . . . . . . . . 258
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 210
Fluid, Automatic . . . . . . . . . . . . . . 273
Messages . . . . . . . . . . . . . . . . . . . . 156
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 367
Trip Odometer . . . . . . . . . . . . . . . . . . 124
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 173
U Uniform Tire Quality Grading . . . 316
Universal Remote System . . . . . . 166
Operation . . . . . . . . . . . . . . . . . . . . . 168
Programming . . . . . . . . . . . . . . . . . 166
Using This Manual . . . . . . . . . . . . . . . . 2
V Vehicle
Alarm System . . . . . . . . . . . . . . . . . . 44
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 193
Identification Number (VIN) . . . 357
Load Limits . . . . . . . . . . . . . . . . . . . 198
Messages . . . . . . . . . . . . . . . . . . . . 146
Personalization . . . . . . . . . . . . . . . 157
Reminder Messages . . . . . . . . . . 157
Remote Start . . . . . . . . . . . . . . . . . . . 36
Security . . . . . . . . . . . . . . . . . . . . . . . . 44
Speed Messages . . . . . . . . . . . . . 157
Towing . . . . . . . . . . . . . . . . . . . . . . . . 330
Vehicle Ahead Indicator . . . . . . . . 136
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 306
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . . . . . 372 Vehicle Hold
Automatic . . . . . . . . . . . . . . . . . . . . . 217
Ventilation, Air . . . . . . . . . . . . . . . . . . 189
Video Recorder . . . . . . . . . . . . . . . . . 250
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Voltmeter Gauge . . . . . . . . . . . . . . . 129
W Warning
Brake System Light . . . . . . . . . . . 133
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 248
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . . 117
Warnings
Hazard Flashers . . . . . . . . . . . . . . 173
Washer Fluid . . . . . . . . . . . . . . . . . . . 281
Messages . . . . . . . . . . . . . . . . . . . . 157
Wheels
Alignment and Tire Balance . . 318
Different Size . . . . . . . . . . . . . . . . . 316
Replacement . . . . . . . . . . . . . . . . . 318
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Where to Put the Restraint . . . . . . 94
Windows . . . . . . . . . . . . . . . . . . . . . . . . 51
Messages . . . . . . . . . . . . . . . . . . . . 157
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 52