2019 CADILLAC CT6 immobilizer

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
28 KEYS, DOORS, AND WINDOWS
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . . . . . 36
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 38
Power Door Locks . . . . . . . . . . . . . . . . . 40
Delayed Locking . . . . . . . . . . . . . . . . . . . 40
Automatic Door Locks . . . . . . . . . . . . 40
Lockout Protection . . . . . . . . . . . . . . . . 41
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 41
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 49
Vehicle Alarm System . . . . . . . . . . . . . 49
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 51
Immobilizer Operation . . . . . . . . . . . . 51
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 52
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 52 Folding Mirrors . . . . . . . . . . . . . . . . . . . . 53
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 53
Automatic Dimming Mirror . . . . . . . 53
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 53
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 54
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Rear Camera Mirror . . . . . . . . . . . . . . . 54
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Power Windows . . . . . . . . . . . . . . . . . . . . 57
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Rear Window Sunshade . . . . . . . . . . . 59
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
KEYS, DOORS, AND WINDOWS 51
With the vehicle turned off, presso
in the front overhead console. The
indicator light will come on
momentarily, indicating that these
sensors have been disabled for the
next alarm system arming cycle.
Immobilizer
SeeRadio Frequency Statement 0411.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed. The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the vehicle is started
or the ignition is in ACC/ACCESSORY
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, 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
Remote Keyless Entry (RKE) System
Operation
029.
If the ignition modes will not change
with the other transmitter or with the
transmitter in the transmitter pocket,
your vehicle needs service. If the
ignition does change modes, the first
transmitter may be faulty. See your
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

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
148 INSTRUMENTS AND CONTROLS
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle could
be low on oil and might have some
other system problem. See your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working. For vehicles with a
reconfigurable cluster, this light is in
the display area and may not come on
when the ignition is turned on.
It also comes on when the fuel tank is
low on fuel. The light turns off when
fuel is added. If it does not, have the
vehicle serviced.
Security Light
On some vehicles the immobilizer
light should come on briefly as the
engine is started. If it does not come
on, have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light turns off.
For vehicles with the reconfigurable
cluster, this light may not come on
when the engine is started.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 51.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use. See
Headlamp High/Low-Beam Changer
0168.
IntelliBeam Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled. See Exterior Lamp Controls
0 166.

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
430 INDEX
Fuel (cont'd)Management, Active . . . . . . . . . . . . . . 208
Prohibited Fuels . . . . . . . . . . . . . . . . . . 277
Recommended . . . . . . . . . . . . . . . . . . . . 277
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Fuses and Circuit Breakers . . . . . . . 322
Instrument Panel Fuse Block . . . . 330
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
G
Garage Door Opener . . . . . . . . . . . . . . . . 162Programming . . . . . . . . . . . . . . . . . . . . . . 162
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 320
Gauges Engine Coolant Temperature . . . . 135
Engine Oil Pressure . . . . . . . . . . . . . . . 134
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Speedometer . . . . . . . . . . . . . . . . . . . . . . 133
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 133
Trip Odometer . . . . . . . . . . . . . . . . . . . . 133
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Gauges (cont'd)
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . . . . . 126
Gear Shifting Light . . . . . . . . . . . . . . . . . 144
General Information
Service and Maintenance . . . . . . . . 381
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 289
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404
H
Hazard Warning Flashers . . . . . . . . . . 169
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 63
Head-up Display . . . . . . . . . . . . . . . . . . . . 152
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 169
Bulb Replacement . . . . . . . . . . . . . . . . 321
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 168
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 168
High-Beam On Light . . . . . . . . . . . . . . 148
High/Low Beam Changer . . . . . . . . . 168
Lamps On Reminder . . . . . . . . . . . . . . 149
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . 119 Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Heated and Ventilated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . 53
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Heating . . . . . . . . . . . . . . . . . . . . . . . . .175, 180
High-Beam On Light . . . . . . . . . . . . . . . . 148
High-Speed Operation . . . . . . . . . . . . . . 347
Hill and Mountain Roads . . . . . . . . . . 194
Hill Start Assist (HSA) . . . . . . . . . . . . . 219
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
How to Wear Seat Belts Properly . . . 77
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . .175, 180
I
Ignition Positions . . . . . . . . . . . . . . . . . . . 201
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . 145
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 144
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Information
Publication Ordering . . . . . . . . . . . . . 410
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . 174

Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-12533370) -
2019 - crc - 1/23/19
INDEX 435
Storage Areas (cont'd)Center Console . . . . . . . . . . . . . . . . . . . . 116
Convenience Net . . . . . . . . . . . . . . . . . . 117
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . 114
Instrument Panel . . . . . . . . . . . . . . . . . 114
Storage Compartments . . . . . . . . . . . . . 114
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . 196
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . 340
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Sunshade Rear Window . . . . . . . . . . . . . . . . . . . . . . . . 59
Super Cruise . . . . . . . . . . . . . . . . . . . . . . . . 237
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Brake Pad Life . . . . . . . . . . . . . . . . . . . . . 315
Engine Air Filter Life . . . . . . . . . . . . . 304
Forward Collision Alert (FCA) . . . . 262
Infotainment . . . . . . . . . . . . . . . . . 174, 413
Night Vision . . . . . . . . . . . . . . . . . . . . . . . 268
Systems
Driver Assistance . . . . . . . . . . . . . . . . . 252T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 133
Text Telephone (TTY) Users . . . . . . . 403
Theft-Deterrent Systems . . . . . . . . . . . . 51Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . 51
Thigh Support Adjustment . . . . . . . . . . 66
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 340
Buying New Tires . . . . . . . . . . . . . . . . . 355
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Compact Spare . . . . . . . . . . . . . . . . . . . . 366
Designations . . . . . . . . . . . . . . . . . . . . . . 343
Different Size . . . . . . . . . . . . . . . . . . . . . . 356
If a Tire Goes Flat . . . . . . . . . . . . . . . . 359
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 353
Low Profile . . . . . . . . . . . . . . . . . . . . . . . . 340
Pressure . . . . . . . . . . . . . . . . . . . . . . 346, 347
Pressure Light . . . . . . . . . . . . . . . . . . . . . 147
Pressure Monitor Operation . . . . . . 349
Pressure Monitor System . . . . . . . . 348
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Sidewall Labeling . . . . . . . . . . . . . . . . . 341
Terminology and Definitions . . . . 344
Uniform Tire Quality Grading . . . . 357
Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Tires (cont'd)
Wheel Replacement . . . . . . . . . . . . . . 358
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 276
Towing Driving Characteristics . . . . . . . . . . . 281
Equipment . . . . . . . . . . . . . . . . . . . . . . . . 286
General Information . . . . . . . . . . . . . . 280
Recreational Vehicle . . . . . . . . . . . . . . 372
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Track Events and Competitive
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Traction Control System(TCS)/StabiliTrak Light . . . . . . . . . 146
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 220
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 210
Fluid, Automatic . . . . . . . . . . . . . . . . . . 303
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 407