ECU CADILLAC CT6 2020 Workshop Manual

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
396 ONSTAR
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
self-extracting archive; that is
permitted without inclusion of
this license, as long as the normal SFX banner has not been
removed from the binary or
disabled.
3. Altered versions–including, but not limited to, ports to new
operating systems, existing ports
with new graphical interfaces,
and dynamic, shared, or static
library versions–must be plainly
marked as such and must not be
misrepresented as being the
original source. Such altered
versions also must not be
misrepresented as being Info-ZIP
releases–including, but not
limited to, labeling of the altered
versions with the names
“Info-ZIP” (or any variation
thereof, including, but not
limited to, different
capitalizations), “Pocket UnZip,”
“WiZ” or“MacZip ”without the
explicit permission of Info-ZIP.
Such altered versions are further
prohibited from
misrepresentative use of the
Zip-Bugs or Info-ZIP e-mail
addresses or of the
Info-ZIP URL(s). 4. Info-ZIP retains the right to use
the names “Info-ZIP,” “Zip,”
“UnZip,” “UnZipSFX,” “WiZ,”
“Pocket UnZip,” “Pocket Zip,” and
“MacZip ”for its own source and
binary releases.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
398 CONNECTED SERVICES
Get My Destination1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.” System
responds with the address and
distance to the destination, then
responds with “OnStar ready,”
then a tone.
Send Destination to Vehicle
Directions can be sent to the vehicle’s
navigation screen, if equipped.
Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to the
navigation screen can only be
canceled through the navigation
system.
See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following services help with
staying connected. For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
.
Change the default passwords for
the Wi-Fi hotspot and myCadillac
mobile app. Make these passwords
different from each other and use
a combination of letters, numbers,
and symbols to increase the
security.
. Change the default name of the
SSID (Service Set Identifier). This
is your network’s name that is
visible to other wireless devices.
Choose a unique name and avoid
family names or vehicle
descriptions.
Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in Wi-Fi
hotspot that provides access to the
Internet and web content at 4G LTE
speed. Up to seven mobile devices can
be connected. A data plan is required.
Use the in-vehicle controls only when
it is safe to do so. 1. To retrieve Wi-Fi hotspot
information, press
=to open
the OnStar app on the
infotainment display, then select
Wi-Fi Hotspot. On some vehicles,
touch Wi-Fi or Wi-Fi Settings on
the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some vehicles,
the connection type (no Internet
connection, 3G, 4G, 4G LTE), and
signal quality (poor, good,
excellent).
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR
to connect with an Advisor. On
some vehicles, the SSID and
password can be changed in the
Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s
Wi-Fi hotspot will connect
automatically to your mobile devices.
Manage data usage by turning Wi-Fi
on or off on your mobile device, by
using the myCadillac mobile app,
or by contacting an OnStar Advisor.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
400 INDEX
IndexA
Accessories and Modifications . . . . . 272
Accessory Power . . . . . . . . . . . . . . . . . . . . 188
Active Fuel Management . . . . . . . . . . . 191
Adaptive Cruise Control . . . . . . . . . . . . 211
Add-On Electrical Equipment . . . . . . 269
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . 46
Lumbar, Rear Seats . . . . . . . . . . . . . . . . . 55
Thigh Support . . . . . . . . . . . . . . . . . . . . . . 47
Air Cleaner/Filter, Engine . . . . . . . . . . 282
Air Conditioning . . . . . . . . . . . . . . .158, 163
Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . . . 281
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . . . . . 170
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
How Does an Airbag Restrain? . . . . . 70
Passenger Sensing System . . . . . . . . . 71
What Makes an Airbag Inflate? . . . . 69
What Will You See after anAirbag Inflates? . . . . . . . . . . . . . . . . . . . 70 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Where Are the Airbags? . . . . . . . . . . . . 67
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . . . . . 121
Readiness Light . . . . . . . . . . . . . . . . . . . 121
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
System Check . . . . . . . . . . . . . . . . . . . . . . . 65
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . 30
Alert Lane Change . . . . . . . . . . . . . . . . . . . . . . 252
Rear Pedestrian . . . . . . . . . . . . . . . . . . . 242
Side Blind Zone (SBZA) . . . . . . . . . . 252
All-Season Tires . . . . . . . . . . . . . . . . . . . . . 316
All-Wheel Drive . . . . . . . . . . . . . . . .199, 293
Antilock Brake System (ABS) . . . . . . 199 Warning Light . . . . . . . . . . . . . . . . . . . . 126
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Armrest Storage . . . . . . . . . . . . . . . . . . . . . . 99
Assistance Systems for Driving . . . . 243

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
INDEX 401
Assistance Systems for Parkingand Backing . . . . . . . . . . . . . . . . . . . . . . . 235
Auto Stop Stop/Start System . . . . . . . . . . . . . . . . 186
Automatic Climate Control System . . . . . 158, 163
Dimming Mirrors . . . . . . . . . . . . . . . . . . . 34
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Emergency Braking (AEB) . . . . . . . . 246
Headlamp System . . . . . . . . . . . . . . . . 152
Transmission . . . . . . . . . . . . . . . . . . . . . . 193
Transmission Fluid . . . . . . . . . . . . . . . 281
Vehicle Hold Light . . . . . . . . . . . . . . . . 127
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . 197
Automatic Vehicle Hold (AVH) . . . . 202
B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Load Management . . . . . . . . . . . . . . . . 156
Power Protection . . . . . . . . . . . . . . . . . . 156
Battery - North America . . . . . .292, 343
Blade Replacement, Wiper . . . . . . . . . 295
Boost Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 117
Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 199 Brake (cont'd)
Parking, Electric . . . . . . . . . . . . . . . . . . 200
System Warning Light . . . . . . . . . . . . 125
Brake Pad Life System . . . . . . . . . . . . . . 291
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Pad Life System . . . . . . . . . . . . . . . . . . . 291
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Automatic Emergency (AEB) . . . . . 246
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 247
Break-In, New Vehicle . . . . . . . . . . . . . . 183
Bulb Replacement
Headlamp Aiming . . . . . . . . . . . . . . . . 297
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 297
Buying New Tires . . . . . . . . . . . . . . . . . . . 331
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 106
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 272
California Proposition 65 Warning . . . . . . . . . . . . .271, 292, 343, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 2 Capacities and Specifications . . . . . . 373
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . . . . . 192
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Winter Driving . . . . . . . . . . . . . . . . . . . . 178
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . 101
Caution, Danger, and Warning . . . . . . . . 2
Center Console Storage . . . . . . . . . . . . . 100
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 335
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Charging System Light . . . . . . . . . . . . . 122
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . . . 123
Child Restraints Infants and Young Children . . . . . . . . 79
Lower Anchors and Tethers forChildren . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Older Children . . . . . . . . . . . . . . . . . . . . . . 77
Securing . . . . . . . . . . . . . . . . . . . . . . . . .92, 94
Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 298
Cleaning Exterior Care . . . . . . . . . . . . . . . . . . . . . . 349
Interior Care . . . . . . . . . . . . . . . . . . . . . . 353

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
402 INDEX
Climate Control SystemsAutomatic . . . . . . . . . . . . . . . . . . . . 158, 163
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cluster, Instrument . . . . . . . . . . . .110, 113
Collision Damage Repair . . . . . . . . . . . 383
Compact Spare Tire . . . . . . . . . . . . . . . . . 342
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Connected Services Connections . . . . . . . . . . . . . . . . . . . . . . . 398
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . 399
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 397
Connections Connected Services . . . . . . . . . . . . . . . 398
Control
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Control of a Vehicle . . . . . . . . . . . . . . . . 173
Convenience Net . . . . . . . . . . . . . . . . . . . . 101
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . 33
Coolant Engine Temperature Gauge . . . . . . 119
Engine Temperature WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Cooling . . . . . . . . . . . . . . . . . . . . . . . . .158, 163
Cooling System . . . . . . . . . . . . . . . . . . . . . 284
Cornering Lamps . . . . . . . . . . . . . . . . . . . 153 Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . 154
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . 209 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Cruise Control, Adaptive . . . . . . . . . . . 211
Cruise Control, Super . . . . . . . . . . . . . . . 220
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Customer Assistance . . . . . . . . . . . . . . . 378 Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Text Telephone (TTY) Users . . . . . 378
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . . . . . 385
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . 387
D
Damage Repair, Collision . . . . . . . . . . . 383
Danger, Warning, and Caution . . . . . . . . 2
Data Collection Infotainment System . . . . . . . . . . . . . 389
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Data Recorders, Event . . . . . . . . . . . . . . 388
Daytime Running Lamps (DRL) . . . 151
Defensive Driving . . . . . . . . . . . . . . . . . . . 173
Delayed Locking . . . . . . . . . . . . . . . . . . . . . 21 Diagnostics
Connected Services . . . . . . . . . . . . . . . 399
Distracted Driving . . . . . . . . . . . . . . . . . . 172
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . 154
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . 132
Delayed Locking . . . . . . . . . . . . . . . . . . . . 21
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear Seat Pass-Through . . . . . . . . . . . . 57
Drive Belt Routing, Engine . . . . . . . . . 375
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . 199, 293
Driver Assistance Systems . . . . . . . . . 234
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . . . . . . 132
Driver Mode Control . . . . . . . . . . . . . . . . 204
Driver Mode Control Light . . . . . . . . . 129
Driving Assistance Systems . . . . . . . . . . . . . . . 243
Better Fuel Economy . . . . . . . . . . . . . 172
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . 262
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Hill and Mountain Roads . . . . . . . . 177
If the Vehicle is Stuck . . . . . . . . . . . . 179
Loss of Control . . . . . . . . . . . . . . . . . . . . 175

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
INDEX 405
InformationPublication Ordering . . . . . . . . . . . . . 385
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 157
Infotainment System . . . . . . . . . . . . . . . 389
Instrument Cluster . . . . . . . . . . . .110, 113
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . . . . . . 98
Instrument Panel Overview . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . . . 35
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . 343
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . 10
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 317
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Daytime Running (DRL) . . . . . . . . . . 151
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Exterior Controls . . . . . . . . . . . . . . . . . . 149
Exterior Lamps Off Reminder . . . . 151 Lamps (cont'd)
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 123
On Reminder . . . . . . . . . . . . . . . . . . . . . . 131
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Lane Change Alert (LCA) . . . . . . . . . . . 252
Lane Keep Assist (LKA) . . . . . . . . . . . . 254
Lane Keep Assist Light . . . . . . . . . . . . . 127
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 60
LATCH System Replacing Parts after a Crash . . . . . . 91
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . . . . 84
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 297
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Illumination Control . . . . . . . . . . . . . . 153
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 121
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 126
Automatic Vehicle Hold . . . . . . . . . . 127
Brake System Warning . . . . . . . . . . . 125
Charging System . . . . . . . . . . . . . . . . . . 122 Lights (cont'd)
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 123
Cruise Control . . . . . . . . . . . . . . . . . . . . . 131
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Driver Mode Control . . . . . . . . . . . . . . 129
Electric Parking Brake . . . . . . . . . . . . 125
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 129
Engine Oil Pressure . . . . . . . . . . . . . . . 130
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 151
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 126
High-Beam On . . . . . . . . . . . . . . . . . . . . 131
High/Low Beam Changer . . . . . . . . . 151
Lane Keep Assist . . . . . . . . . . . . . . . . . . 127
Low Fuel Warning . . . . . . . . . . . . . . . . 130
Seat Belt Reminders . . . . . . . . . . . . . . 120
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Service Electric Parking Brake . . . 126
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . 128
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 129
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . 128
Traction Off . . . . . . . . . . . . . . . . . . . . . . . 128
Locking Rear Axle . . . . . . . . . . . . . . . . . . 208
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . 21
Delayed Locking . . . . . . . . . . . . . . . . . . . . 21

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
406 INDEX
Locks (cont'd)Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Lockout Protection . . . . . . . . . . . . . . . . . 22
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Loss of Control . . . . . . . . . . . . . . . . . . . . . . 175
Low Fuel Warning Light . . . . . . . . . . . 130
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . 317
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . 84
Lumbar Adjustment . . . . . . . . . . . . . 46, 55 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . . . . . 365
Maintenance Schedule . . . . . . . . . . . . . 359 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . 368
Malfunction Indicator Lamp . . . . . . . 123
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . 197
Massage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . 48
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . 139 Messages (cont'd)
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . 139
Mirror
Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . 35
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . 34
Automatic Dimming Rearview . . . . . 35
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . 34
Mirrors, Interior Rearview . . . . . . . . . . . 35
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Driver Control . . . . . . . . . . . . . . . . . . . . . 204
Monitor System, Tire Pressure . . . . . 324
N
Navigation Connected Services . . . . . . . . . . . . . . . 397
Net, Convenience . . . . . . . . . . . . . . . . . . . 101
New Vehicle Break-In . . . . . . . . . . . . . . . 183
Night Vision System . . . . . . . . . . . . . . . . 250
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Engine Oil Life System . . . . . . . . . . . 280
Engine Oil Pressure Gauge . . . . . . . 117
Pressure Light . . . . . . . . . . . . . . . . . . . . . 130
Older Children, Restraints . . . . . . . . . . . 77
Online Owner Center . . . . . . . . . . . . . . . 379
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
OnStar Additional Information . . . . 392
OnStar Emergency . . . . . . . . . . . . . . . . . . 391
OnStar Overview . . . . . . . . . . . . . . . . . . . . 390
OnStar Security . . . . . . . . . . . . . . . . . . . . . 391
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Overheating, Engine . . . . . . . . . . . . . . . . 288
Overview Instrument Panel . . . . . . . . . . . . . . . . . . . . 5
P
ParkShifting Out of . . . . . . . . . . . . . . . . . . . . 189
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Parking Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . . 294
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
408 INDEX
RoadsDriving, Wet . . . . . . . . . . . . . . . . . . . . . . . 176
Roadside Service . . . . . . . . . . . . . . . . . . . . 380
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 329
Routing, Engine Drive Belt . . . . . . . . . 375
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
S
Safety Defects ReportingCanadian Government . . . . . . . . . . . . 386
General Motors . . . . . . . . . . . . . . . . . . . 387
U.S. Government . . . . . . . . . . . . . . . . . . 386
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety System Check . . . . . . . . . . . . . . . . 64
Scheduling Appointments . . . . . . . . . . 382
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . 60
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 120
Replacing after a Crash . . . . . . . . . . . . . 65
Use During Pregnancy . . . . . . . . . . . . . . 63 Seats
Head Restraints . . . . . . . . . . . . . . . . . . . . . 44
Heated and Ventilated Front . . . . . . . 51
Heated and Ventilated, Rear . . . . . . . 56
Lumbar Adjustment, Front . . . . . . . . . 46
Lumbar Adjustment, Rear . . . . . . . . . . 55
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Power Adjustment, Front . . . . . . . . . . 46
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Reclining Seatbacks . . . . . . . . . . . . . . . . 48
Securing Child Restraints . . . . . . . 92, 94
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . 30
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Accessories andModifications . . . . . . . . . . . . . . . . . . . . 272
Doing Your Own Work . . . . . . . . . . . 272
Maintenance Records . . . . . . . . . . . . 371
Maintenance, General Information . . . . . . . . . . . . . . . . . . . . . . 357
Parts Identification . . . . . . . . . . . . . . . 372
Scheduling Appointments . . . . . . . . 382
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Services
Special Application . . . . . . . . . . . . . . . 364
Servicing the Airbag . . . . . . . . . . . . . . . . . 75
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . 189
Side Blind Zone Alert (SBZA) . . . . . . 252
Signals, Turn and Lane-Change . . . . 153
Spare Tire
Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Special Application Services . . . . . . . 364
Specifications and Capacities . . . . . . 373
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 115
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . 201
Start Vehicle, Remote . . . . . . . . . . . . . . . 17
Starter Switch Check . . . . . . . . . . . . . . . 294
Starting the Engine . . . . . . . . . . . . . . . . . 185
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 Heated Wheel . . . . . . . . . . . . . . . . . . . . . 103
Wheel Adjustment . . . . . . . . . . . . . . . . 103
Wheel Controls . . . . . . . . . . . . . . . . . . . 103
Stop/Start System . . . . . . . . . . . . . . . . . . 186
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-13566829) -
2020 - CRC - 6/11/19
410 INDEX
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 116
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Turn and Lane-Change Signals . . . . 153
U
Uniform Tire Quality Grading . . . . . . 333
Universal Remote System . . . . . . . . . . 145Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Programming . . . . . . . . . . . . . . . . . . . . . . 145
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . 30
Automatic Hold Light . . . . . . . . . . . . 127
Canadian Owners . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Identification Number (VIN) . . . . . 372
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 179
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Personalization . . . . . . . . . . . . . . . . . . . 140
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 17
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Speed Messages . . . . . . . . . . . . . . . . . . . 139
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Vehicle Ahead Indicator . . . . . . . . . . . . 127 Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 322
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 202
Vehicle Hold (AVH)
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 202
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 169
Video Recorder . . . . . . . . . . . . . . . . . . . . . . 256
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . 120
W
Warning Brake System Light . . . . . . . . . . . . . . . 125
Caution and Danger . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 152
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 289
Wheels Alignment and Tire Balance . . . . . 334
Different Size . . . . . . . . . . . . . . . . . . . . . . 333
Replacement . . . . . . . . . . . . . . . . . . . . . . 335
When It Is Time for New Tires . . . . 330
Where to Put the Restraint . . . . . . . . . 83 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 295
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 104
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 316
Wiper Blade Replacement . . . . . . . . . . 295
Wireless Charging . . . . . . . . . . . . . . . . . . 107