2023 CADILLAC CT4 CD changer

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
128 Instruments and Controls
Security Light
The security 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.
If the light stays on and the
engine does not start, there
could be a problem with the
theft-deterrent system. See
Immobilizer Operation027.
High-Beam On Light
This light comes on when the
high-beam headlamps are in
use. See Headlamp High/
Low-Beam Changer 0147.
IntelliBeam Light
This light comes on when the
IntelliBeam system,
if equipped, is enabled. See
Exterior Lamp Controls 0145.
Lamps On Reminder
This light comes on when the
exterior lamps are in use,
except when only the Daytime Running Lamps (DRL) are
active. See Exterior Lamp
Controls
0145.
Cruise Control Light
The cruise control light is
white when the cruise control
is on and ready, and turns
green when the cruise control
is set and active.
See Cruise Control 0301.
Adaptive Cruise Control
Light
Base LevelUplevel

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 145
Lighting
Exterior Lighting
Exterior LampControls . . . . . . . . . . . . . . . . . . . . . 145
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 147
Headlamp High/ Low-Beam Changer . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . 147
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 147
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 148
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . 149
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . 149
Cornering Lamps . . . . . . . . . . 149
Interior Lighting
Instrument Panel Illumination Control . . . . . . 150
Courtesy Lamps . . . . . . . . . . . 150
Dome Lamps . . . . . . . . . . . . . . . . 150
Reading Lamps . . . . . . . . . . . . . 150
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . 151
Exit Lighting . . . . . . . . . . . . . . . . . . 151
Battery Load Management . . . . . . . . . . . . . . . 152
Battery Power
Protection . . . . . . . . . . . . . . . . . . 153
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 153Exterior Lighting
Exterior Lamp
Controls
The exterior lamp control is on
the turn signal lever.
Turn the control to the
following positions:
O:Turns the exterior lamps
off and deactivates the AUTO
mode. Turn to
Oagain to
reactivate the AUTO mode.
In Canada, the headlamps will
automatically reactivate when
the vehicle is shifted out of
P (Park).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Lighting 147
the AUTO or2position to
reactivate the IntelliBeam
system. The instrument
cluster light will come on to
indicate the IntelliBeam
system is reactivated.
The high beams may not turn
off automatically if the system
cannot detect another
vehicle's lamps because of any
of the following:
.The other vehicle's lamps
are missing, damaged,
obstructed from view,
or otherwise undetected.
.The other vehicle's lamps
are covered with dirt, snow,
and/or road spray.
.The other vehicle's lamps
cannot be detected due to
dense exhaust, smoke, fog,
snow, road spray, mist,
or other airborne
obstructions.
.The vehicle's windshield is
dirty, cracked, or obstructed
by something that blocks the
view of the light sensor.
.The vehicle is loaded such
that the front end points
upward, causing the light
sensor to aim high and not
detect headlamps and
taillamps.
.The vehicle is being driven
on winding or hilly roads.
The automatic high-beam
headlamps may need to be
disabled if any of the above
conditions exist.
Exterior Lamps Off
Reminder
A warning chime sounds if the
driver door is opened while
the ignition is off and the
exterior lamps are on.
Headlamp High/
Low-Beam Changer
3: Push the turn signal lever
away from you and release, to
turn the high beams on. To
return to low beams, push the
lever again or pull it toward
you and release.
This indicator light turns on in
the instrument cluster when
the high-beam headlamps
are on.
Flash-to-Pass
To flash the high beams, pull
the turn signal lever toward
you, and release.
Daytime Running
Lamps (DRL)
DRL can make it easier for
others to see the front of your
vehicle during the day. Fully
functional DRL are required on
all vehicles first sold in
Canada.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
514 INDEX
Frequency StatementRadio . . . . . . . . . . . . . . . . . . . . . . . . . . 494
Front Heated and VentilatedSeats . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Pedestrian Braking (FPB) System . . . . . . . . . . . . . 346
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 355
Economy, Driving forBetter . . . . . . . . . . . . . . . . . . . . . . . 234
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . 357
Filling the Tank . . . . . . . . . . . . . 356
Foreign Countries . . . . . . . . . 355
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Prohibited Fuels . . . . . . . . . . . 355
Recommended . . . . . . 354, 355
Top Tier . . . . . . . . . . . . . . . . . . . . . . 354
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . . 407
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . 406
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 409 Fuses (cont'd)
Rear Compartment
Fuse Block . . . . . . . . . . . . . . . . . . 411
G
Garage Door Opener . . . . . . . . .141Programming . . . . . . . . . . . . . . . . 141
Gas Strut(s) . . . . . . . . . . . . . . . . . . . 402
Gauges
Engine CoolantTemperature . . . . . . . . . . 114, 115
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Odometer . . . . . . . . . . . . . . . . . . . . . . 112
Speedometer . . . . . . . . . . . . . . . . . 112
Tachometer . . . . . . . . . . . . . . . . . . 113
Trip Odometer . . . . . . . . . . . . . . . 112
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 105
General Information Service andMaintenance . . . . . . . . . . . . . . 467
Towing . . . . . . . . . . . . . . . . . . . . . . . . 358
Vehicle Care . . . . . . . . . . . . . . . . 369
Global Positioning System (GPS) . . . . . . . . . . . . . . . . 183
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . 94 GM Mobility
Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . 487
Guidance Problems with theRoute . . . . . . . . . . . . . . . . . . . . . . . . . 184
H
Halogen Bulbs . . . . . . . . . . . . . . . . 403
Hazard WarningFlashers . . . . . . . . . . . . . . . . . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . 37
Head-Up Display (HUD) . . . . . 136
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 403
Automatic . . . . . . . . . . . . . . . . . . . . . 148
Bulb Replacement . . . . . . . . . 403
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . 147
High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . 403
High-Beam On Light . . . . . . . 128
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 147
Lamps On Reminder . . . . . . . 128

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
INDEX 515
HeatedMirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Steering Wheel . . . . . . . . . . . . . . 98
Ventilated Front Seats . . . . 45
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 266
Heating . . . . . . . . . . . . . . . . . . . . . . . . . 225
High-Beam On Light . . . . . . . . . 128
High-Speed Operation . . . . . 423
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . 252
Hill Start Assist (HSA) . . . . . . 289
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . . 51
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Hydraulic Clutch . . . . . . . . . . . . . 383
I
If the System Needs Service . . . . . . . . . . . . . . . . . . . . . . . . . 184
Ignition Positions . . . . . . . . . . . . . 261
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 27
Indicator Pedestrian Ahead . . . . . . . . . . 123
Vehicle Ahead . . . . . . . . . . . . . . . 123 Indicators
Warning Lights and
Gauges . . . . . . . . . . . . . . . . . . . . . . . 105
Infants and Young Children, Restraints . . . . . . . . . 74
Information Publication Ordering . . . . . 494
Infotainment Using the System . . . . . . . . . . 158
Infotainment System . . . . . . . 498
Inspection Multi-Point Vehicle . . . . . . . . . 472
Instrument Cluster . . . . 106, 108
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior Rearview Mirrors . . . . 31
Introduction . . . . . . . . . . . . . . . . . 2, 155
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 447
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Operation . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . . 417
LampsCornering . . . . . . . . . . . . . . . . . . . . . 149
Courtesy . . . . . . . . . . . . . . . . . . . . . . 150
Daytime Running (DRL) . . . 147
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Exterior Controls . . . . . . . . . . . 145
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 147
Exterior Lighting Battery Saver . . . . . . . . . . . . . . 153
Flash-to-Pass . . . . . . . . . . . . . . . . 147
Front Turn Signal . . . . . . . . . . 404
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 147
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 118
On Reminder . . . . . . . . . . . . . . . . . 128
Reading . . . . . . . . . . . . . . . . . . . . . . . 150
Lane Change Alert (LCA) . . . . . . . 349
Keep Assist (LKA) . . . . . . . . . . 351
Keep Assist Light . . . . . . . . . . 122
Lap-Shoulder Belt . . . . . . . . . . . . . 54
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . 87