bulb CADILLAC CT5 2021 Owner's Manual

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/24/20
122 INSTRUMENTS AND CONTROLS
Navigation Overlay :This displays
digital speed for Tour/ Sport, current
gear for Track, indicators from speed
view along with Turn-by-Turn
Navigation information in some
vehicles, vehicle ahead indicator, Lane
Departure Warning/Lane Keep Assist,
and Adaptive Cruise Control and set
speed. The compass heading is
displayed when navigation routing is
not active.
Navigation Turn-by-Turn Alerts
shown in the instrument cluster may
also be displayed in any HUD view.
Care of the HUD
Clean the inside of the windshield to
remove any dirt or film that could
reduce the sharpness or clarity of the
HUD image.
Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe the
lens gently, then dry it.
HUD Troubleshooting
If you cannot see the HUD image
when the ignition is on, check that:
.Nothing is covering the HUD lens.
.The HUD brightness setting is not
too dim or too bright.
.The HUD is adjusted to the proper
height.
.Polarized sunglasses are not worn.
.The windshield and HUD lens are
clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. If the windshield needs
replacing, see Windshield Replacement
0 332.
Vehicle Messages
Messages displayed on the Driver
Information Center (DIC) indicate the
status of the vehicle or some action
that may be needed to correct a
condition. Multiple messages may
appear one after another.
The messages that do not require
immediate action can be
acknowledged and cleared by pressing
the thumbwheel. The messages that
require immediate action cannot be
cleared until that action is performed. All messages should be taken
seriously; clearing the message does
not correct the problem.
If a SERVICE message appears, see
your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
306 DRIVING AND OPERATING
Towing Equipment
Hitches
Always use the correct hitch
equipment for your vehicle.
Crosswinds, large trucks going by, and
rough roads can affect the trailer and
the hitch.
Never attach rental hitches or other
bumper-type hitches. Only use
frame-mounted hitches that do not
attach to the bumper.
Always seal any holes in your vehicle
if the trailer hitch removed. If not
sealed, dirt, water, and carbon
monoxide (CO) from the exhaust may
enter your vehicle. SeeEngine Exhaust
0 231.
Consider using mechanical sway
controls with any trailer. Ask a
trailering professional about sway
controls or refer to the trailer
manufacturer's recommendations and
instructions.
Tires
.Do not tow a trailer while using a
compact spare tire on the vehicle.
.Tires must be properly inflated to
support loads while towing a trailer.
See Tires 0342 for instructions on
proper tire inflation.
Safety Chains
Always attach chains between the
vehicle and the trailer, and attach the
chains to the holes on the trailer hitch
platform. Instructions about safety
chains may be provided by the hitch
manufacturer or by the trailer
manufacturer.
Cross the safety chains under the
tongue of the trailer to help prevent
the tongue from contacting the road if
it becomes separated from the hitch.
Always leave just enough slack so the
combination can turn. Never allow
safety chains to drag on the ground.
Trailer Brakes
Loaded trailers over 450 kg (1,000 lb)
must be equipped with brake systems
and with brakes for each axle. Trailer
braking equipment conforming to
Canadian Standards Association (CSA)
requirement CAN3-D313, or its
equivalent, is recommended. State or local regulations may require
trailers to have their own braking
system if the loaded weight of the
trailer exceeds certain minimums that
can vary from state to state. Read and
follow the instructions for the trailer
brakes so they are installed, adjusted,
and maintained properly. Never
attempt to tap into your vehicle's
hydraulic brake system. If you do,
both the vehicle anti-lock brakes and
the trailer brakes may not function,
which could result in a crash.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing lanes,
or stopping. When towing a trailer,
the arrows on the instrument cluster
will illuminate even if the trailer is not
properly connected or the bulbs are
burned out.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
308 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 309
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 309
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 309
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 310
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 310
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 313
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 316
Engine Oil Life System . . . . . . . . . . . 318
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Engine Air Filter Life System . . . . 319
Engine Air Cleaner/Filter . . . . . . . . . 320
Cooling System . . . . . . . . . . . . . . . . . . . 322
Engine Overheating . . . . . . . . . . . . . . 326
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 327
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Brake Pad Life System (If Equipped) . . . . . . . . . . . . . . . . . . . . . . . 328
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 329 Battery - North America . . . . . . . . . 330
All-Wheel Drive . . . . . . . . . . . . . . . . . . 331
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 331
Wiper Blade Replacement . . . . . . . 331
Windshield Replacement . . . . . . . . 332
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 332
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 333
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 334
Electrical System
Electrical System Overload . . . . . . 334
Fuses and Circuit Breakers . . . . . . 334
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Instrument Panel Fuse Block . . . . 337
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
All-Season Tires . . . . . . . . . . . . . . . . . . 342
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 343
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 343
Self-Sealing Tires . . . . . . . . . . . . . . . . . 344
Low-Profile Tires . . . . . . . . . . . . . . . . . 344
Summer Tires . . . . . . . . . . . . . . . . . . . . 344
Tire Sidewall Labeling . . . . . . . . . . . 345 Tire Designations . . . . . . . . . . . . . . . . . 346
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 347
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 349
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 350
Tire Pressure Monitor System . . . 351
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 352
Tire Inspection . . . . . . . . . . . . . . . . . . . 355
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 355
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Buying New Tires . . . . . . . . . . . . . . . . 357
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Uniform Tire Quality Grading . . . 359
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Wheel Replacement . . . . . . . . . . . . . . 360
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 361
If a Tire Goes Flat . . . . . . . . . . . . . . . . 361
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 362
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 368
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . . . . 368

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
334 VEHICLE CARE
Bulb Replacement
LED Lighting
This vehicle has LED lamps. For
replacement of any LED lighting
assembly, contact your dealer.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the electrical load is too heavy
a circuit breaker opens, protecting the
circuit until overcurrent condition is
removed. This greatly reduces the
chance of circuit overload and fire
caused by electrical problems.
Fuses and circuit breakers protect
electrical devices in the vehicle.Replace a blown or open fuse with a
new one of the identical size and
rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be borrowed.
Choose some feature of the vehicle
that is not needed to use and replace
it as soon as possible.
Headlamp Wiring
An electrical overload may cause the
lamps to go on and off, or in some
cases to remain off. Have the
headlamp wiring checked right away if
the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop. Wiper function is
available immediately after the wiper
switch is set to off, and back to on.To protect the wiper motor from
overheating, the wipers may slow
down when the windshield is dry for a
long period of time. If a period of dry
operation, or little moisture, exceeds
10 minutes, the wipers may switch to
intermittent operation, and remain
there. When moisture is again
detected on the windshield, wiper
operation will return to the operator
selected speed.
Although the circuit is protected from
electrical overload, overload due to
heavy snow or ice may cause wiper
linkage damage. Always clear ice and
heavy snow from the windshield
before using the windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by electrical
problems.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-14584312) -
2021 - CRC - 11/23/20
INDEX 423
Appearance CareExterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . . . . 180
Assistance Systems for Driving . . . . 285
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 277
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Auto Stop
Stop/Start System . . . . . . . . . . . . . . . . 226
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . 28
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 17
Emergency Braking (AEB) . . . . . . . . 288
Headlamp System . . . . . . . . . . . . . . . . 134
Transmission . . . . . . . . . . . . . . . . . . . . . . 231
Transmission Fluid . . . . . . . . . . . . . . . 319
Vehicle Hold Light . . . . . . . . . . . . . . . . 107
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . . . . . 236
Automatic Vehicle Hold (AVH) . . . . 240
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151B
Battery
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Load Management . . . . . . . . . . . . . . . . 138
Power Protection . . . . . . . . . . . . . . . . . . 139
Battery - North America . . . . . .330, 368
Blade Replacement, Wiper . . . . . . . . . 331
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . 175, 176
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . 154
Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 237
Parking, Electric . . . . . . . . . . . . . . . . . . 238
System Warning Light . . . . . . . . . . . . 105
Brake Pad Life System . . . . . . . . . . . . . . 328
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Pad Life System . . . . . . . . . . . . . . . . . . . 328
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Automatic Emergency (AEB) . . . . . 288
Braking System
Front Pedestrian (FPB) . . . . . . . . . . . 289
Break-In, New Vehicle . . . . . . . . . . . . . . 223
Buckle To Drive . . . . . . . . . . . . . . . . . . . . . . 47 Bulb Replacement
Headlamp Aiming . . . . . . . . . . . . . . . . 333
Buying New Tires . . . . . . . . . . . . . . . . . . . 357
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 309
California Proposition 65 Warning . . . . . . . . . . . . .309, 330, 368, Back Cover
Canadian Vehicle Owners . . . . . . . . . . . . . 1
Capacities and Specifications . . . . . . 397
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 231
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Winter Driving . . . . . . . . . . . . . . . . . . . . 218
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Caution, Danger, and Warning . . . . . . . . 2
Center Console Storage . . . . . . . . . . . . . . 84
Chains, Tire . . . . . . . . . . . . . . . . . . . . . . . . . 361
Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Charging System Light . . . . . . . . . . . . . 103