air filter CADILLAC CT5 2023 Owners Manual

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
138 Instruments and Controls
economy over recent driving
history and the amount of fuel
remaining in the fuel tank.
Oil Life :Shows an estimate of
the oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of
the current oil life remains.
When the remaining oil life is
low, the CHANGE ENGINE OIL
SOON message will appear on
the display. The oil should be
changed as soon as possible.
See Engine Oil 0383. In
addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See
Maintenance Schedule 0471.
The Oil Life display must be
reset after each oil change.
It will not reset itself. Do not
reset the Oil Life display
accidentally at any time other
than when the oil has just
been changed. It cannot be
reset accurately until the next
oil change. See Engine Oil Life
System 0386. Air Filter Life :
If equipped,
Shows an estimate of the
engine air filter’s remaining
useful life and the state of the
system. Engine Air Filter Life
95% means 95% of the
current air filter life remains.
Messages will display based
on the engine air filter life and
the state of the system. When
the REPLACE AT NEXT OIL
CHANGE message displays,
the engine air filter should be
replaced at the time of the
next oil change. When the
REPLACE SOON message
displays, the engine air filter
should be replaced at the
earliest convenience.
The Air Filter Life display must
be reset after the engine air
filter replacement. To reset,
see Engine Air Filter Life
System 0389.
Brake Pad Life : If equipped,
This displays an estimate of
the remaining life of the front
and rear brake pads.
Messages will display based on brake pad wear and the
state of the system. Reset the
Brake Pad Life display after
replacing the brake pads. See
Brake Pad Life System (If
Equipped)
0403.
Tire Pressure : Shows the
approximate pressures of all
four tires. Tire pressure is
displayed in either
kilopascal (kPa) or in pounds
per square inch (psi). If the
pressure is low, the value for
that tire is shown in amber.
See Tire Pressure Monitor
System 0430 and
Tire Pressure Monitor
Operation 0431.
Fuel Economy : Displays
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy.
Average Speed : Displays the
average vehicle speed of the
vehicle in kilometers per
hour (km/h) or miles per
hour (mph). This average is

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
142 Instruments and Controls
Fuel Economy :Displays the
average fuel economy, the
best fuel economy over the
selected distance, and a bar
graph showing instantaneous
fuel economy. Pressing the
thumbwheel opens a menu to
change the selected distance
or reset the current values.
Trip Timer/Fuel Used : This
display can be used as a timer.
To start/stop the timer, press
the thumbwheel while this
display is active and then
select the start/stop the
timer. The display shows the
amount of time that has
passed since the timer was
last reset. To reset the timer
to zero, press the thumbwheel
to access the menu while this
display is active.
Fuel Used displays the
approximate liters (L) or
gallons (gal) of fuel that have
been used since last reset.
The fuel used can be reset by pressing the thumbwheel and
selecting Reset Fuel Used in
the menu.
Current Drive Cycle :
Displays
information in relation to the
current drive cycle including
Distance Traveled, Average
Fuel Economy, and the Total
Time. They will reset after the
drive cycle is completed.
Driver Assistance :
If equipped, displays the
status of all active safety
systems.
Oil Life : Displays an estimate
of the remaining useful oil life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of
the current oil life remains.
When the remaining oil life is
low, the CHANGE ENGINE OIL
SOON message appears on
the display. The oil should be
changed as soon as possible.
See Engine Oil 0383. In
addition to the engine oil life
system monitoring the oil life, additional maintenance is
recommended. See
Maintenance Schedule
0471.
The Oil Life display must be
reset after each oil change.
It will not reset itself. Do not
reset the Oil Life display
accidentally at any time other
than when the oil has just
been changed. It cannot be
reset accurately until the next
oil change. See Engine Oil Life
System 0386.
Air Filter Life : If equipped,
shows an estimate of the
engine air filter’s remaining
useful life and the state of the
system. Engine Air Filter Life
95% means 95% of the
current air filter life remains.
Messages are displayed based
on the engine air filter life and
the state of the system. When
the REPLACE AT NEXT OIL
CHANGE message displays,
the engine air filter should be
replaced at the time of the
next oil change. When the
REPLACE NOW message

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Instruments and Controls 143
displays, the engine air filter
should be replaced as soon as
possible.
Engine Hours :Displays the
total number of hours the
engine has run. The display
also shows the engine idle
hours.
Lifetime Revs : The display
shows total engine revolutions
divided by 10,000.
Brake Pad Life : If equipped,
this displays an estimate of
the remaining life of the front
and rear brake pads.
Messages are displayed based
on brake pad wear and the
state of the system. Reset the
Brake Pad Life display after
replacing the brake pads. See
Brake Pad Life System (If
Equipped) 0403.Head-Up
Display (HUD)
{Warning
If the HUD image is too
bright or too high in your
field of view, it may take you
more time to see things you
need to see when it is dark
outside. Be sure to keep the
HUD image dim and placed
low in your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is
projected onto the windshield.
The information is projected
through the HUD lens on the
driver side of the instrument
panel and focused out toward
the front of the vehicle.
Caution
If you try to use the HUD
image as a parking aid, you
may misjudge the distance
and damage your vehicle. Do
not use the HUD image as a
parking aid.
The HUD information can be
displayed in various languages
in some vehicles. The
speedometer reading and
other numerical values can be
displayed in either English or
metric units.
The language selection is
changed through the radio
and the units of measurement
are changed through the
instrument cluster. See
Settings 0215 and “Options”
under Instrument Cluster
(Base Level) 0113 or
Instrument Cluster (Uplevel)
0 115.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
222 Infotainment System
and the Explicit Content Filter
selection in the Audio Settings
will be unavailable for change.
When Teen Driver is Active:
.If equipped, the radio will
mute when the driver seat
belt, and in some vehicles
the front passenger seat
belt, is not buckled. The
audio from any device paired
to the vehicle will also be
muted.
.An object placed on the
front passenger seat, such
as a briefcase, handbag,
grocery bag, laptop, or other
electronic device, could
cause the passenger
sensing system to falsely
sense an unbuckled front
passenger and mute the
radio. If this happens,
remove the object from the
seat. See Passenger
Sensing System072.
.Some safety systems, such
as Automatic Emergency
Braking, if equipped, cannot
be turned off.
.The gap setting for Adaptive
Cruise Control and alert
timing for Forward Collision
Alert, if equipped, cannot be
changed.
.When trying to change a
safety feature that is not
configurable in Teen Driver,
the feature may be grayed
out or removed from the
infotainment menu, or the
DIC will display a message
indicating that Teen Driver is
active and the action is not
available.
.Super Cruise, if equipped, is
not available.
.Enhanced Low Fuel Warning
(if equipped) –When the
vehicle is low on fuel, the low
fuel light on the instrument
cluster flashes and the DIC
low fuel warning cannot be
dismissed.
.Do not tow a trailer if
equipped with Automatic
Emergency Braking. Report Card
The vehicle owner must
secure the driver’s consent to
record certain vehicle data
when the vehicle is driven with
a registered Teen Driver key.
There is one Report Card per
vehicle. Data is only recorded
when a registered Teen Driver
key is used to operate the
vehicle.
The Report Card data is
collected from the time Teen
Driver is activated or the last
time the Report Card was
reset. The following items may
be recorded:
.Distance Driven
–the total
distance driven.
.Maximum Speed –the
maximum vehicle speed
detected.
.Overspeed Warnings –the
number of times the speed
warning setting was
exceeded.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Climate Controls 233
Climate Controls
Climate Control Systems
Dual Automatic ClimateControl System . . . . . . . . . . . 233
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 238
Maintenance
Passenger CompartmentAir Filter . . . . . . . . . . . . . . . . . . . . 239
Service . . . . . . . . . . . . . . . . . . . . . . . 239
Climate Control Systems
Dual Automatic Climate Control System
The climate control buttons on the center stack and on the
climate control display are used to adjust the heating, cooling,
and ventilation.
Center Stack Climate Controls
1. ON/OFF (Power)
2. AUTO (Automatic Operation)
3. Air Delivery Mode Control 4. Driver Temperature
Controls
5. Fan Control
6. Passenger Temperature Controls

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Climate Controls 239
Check with your dealer
before adding equipment to
the outside of the vehicle.
.Do not attach any devices to
the air vent slats. This
restricts airflow and may
cause damage to the air
vents.
Maintenance
Passenger
Compartment Air
Filter
The filter reduces dust, pollen,
and other airborne irritants
from outside air that is pulled
into the vehicle. The filter
should be replaced as part of
routine scheduled
maintenance. See
Maintenance Schedule0471.
See your dealer regarding
replacement of the filter.
Service
All vehicles have a label
underhood that identifies the
refrigerant used in the vehicle.
The refrigerant system should
only be serviced by trained
and certified technicians. The
air conditioning evaporator
should never be repaired or
replaced by one from a
salvage vehicle. It should only
be replaced by a new
evaporator to ensure proper
and safe operation.
During service, all refrigerants
should be reclaimed with
proper equipment. Venting
refrigerants directly to the
atmosphere is harmful to the
environment and may also
create unsafe conditions
based on inhalation,
combustion, frostbite, or other
health-based concerns.
The air conditioning system
requires periodic maintenance.
See Maintenance Schedule
0 471.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 373
Vehicle Care
General Information
General Information . . . . . . 374
California PerchlorateMaterials
Requirements . . . . . . . . . . . . . 374
Accessories and Modifications . . . . . . . . . . . . . . 374
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . 375
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 376
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 378
Engine Oil . . . . . . . . . . . . . . . . . . . . 383
Engine Oil Life System . . . 386
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . 388
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . 388
Hydraulic Clutch . . . . . . . . . . . 388
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 389
Engine Air Cleaner/ Filter . . . . . . . . . . . . . . . . . . . . . . . . . 389
Cooling System . . . . . . . . . . . . 392
Engine Overheating . . . . . . 398
Washer Fluid . . . . . . . . . . . . . . . . 399 Brakes . . . . . . . . . . . . . . . . . . . . . . . . 400
Brake Pad Life System (If
Equipped) . . . . . . . . . . . . . . . . . . 403
Brake Fluid . . . . . . . . . . . . . . . . . . 404
Battery - North America . . . . . . . . . . . . . . . . . . . . . 405
All-Wheel Drive . . . . . . . . . . . . 406
Park Brake and P (Park) Mechanism Check . . . . . . . 406
Wiper Blade Replacement . . . . . . . . . . . . . . 407
Windshield Replacement . . . . . . . . . . . . . . 408
Gas Strut(s) . . . . . . . . . . . . . . . . . 408
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . 409
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . 409
Electrical System
Electrical SystemOverload . . . . . . . . . . . . . . . . . . . 409
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 411
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . 412
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . 414 Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . 416
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
All-Season Tires . . . . . . . . . . . . 419
Winter Tires . . . . . . . . . . . . . . . . . 419
Run-Flat Tires . . . . . . . . . . . . . . 420
Self-Sealing Tires . . . . . . . . . 420
Noise Reducing Tires(V-Series
Blackwing Only) . . . . . . . . . . . 421
Low-Profile Tires . . . . . . . . . . 421
Summer Tires . . . . . . . . . . . . . . . 422
Tire Sidewall Labeling . . . . 422
Tire Designations . . . . . . . . . . 423
Tire Terminology and Definitions . . . . . . . . . . . . . . . . . 424
Tire Pressure . . . . . . . . . . . . . . . 427
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . 429
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . 430
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 431
Tire Inspection . . . . . . . . . . . . . 435
Tire Rotation . . . . . . . . . . . . . . . 435
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . 437
Buying New Tires . . . . . . . . . . 437

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 379
1. Windshield Washer FluidReservoir. See Washer
Fluid 0399.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0392.
3. Engine Air Cleaner/Filter 0389.
4. Engine Cooling Fan (Out of View). See Cooling System
0392.
5. Engine Oil Fill Cap. See Engine Oil 0383.
6. Engine Oil Dipstick. See Engine Oil 0383.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0452.
8. Brake Fluid Reservoir. See Brake Fluid 0404.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0452.
10. Engine Compartment Fuse Block 0412.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 381
1. Windshield Washer FluidReservoir. See Washer
Fluid 0399.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0392.
3. Engine Oil Dipstick. See Engine Oil 0383.
4. Engine Air Cleaner/Filter 0389.
5. Engine Cooling Fan (Out of View). See Cooling System
0392.
6. Engine Oil Fill Cap. See Engine Oil 0383.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0452.
8. Brake Fluid Reservoir. See Brake Fluid 0404.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0452.
10. Engine Compartment Fuse Block 0412.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Vehicle Care 383
1. Windshield Washer FluidReservoir. See Washer
Fluid 0399.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0392.
3. Engine Air Cleaner/Filter 0389.
4. Engine Oil Dipstick. See Engine Oil 0383.
5. Engine Cooling Fan (Out of View). See Cooling System
0392.
6. Engine Oil Fill Cap. See Engine Oil 0383.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0452.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid
0404.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0452.
10. Engine Compartment Fuse Block 0412.Engine Oil
To ensure proper engine
performance and long life,
careful attention must be paid
to engine oil. Following these
simple, but important steps
will help protect your
investment:
.Use engine oil approved to
the proper specification and
of the proper viscosity
grade. See “Selecting the
Right Engine Oil” in this
section.
.Check the engine oil level
regularly and maintain the
proper oil level. See
“Checking Engine Oil” and
“When to Add Engine Oil” in
this section.
.Change the engine oil at the
appropriate time. See Engine
Oil Life System 0386.
.Always dispose of engine oil
properly. See “What to Do
with Used Oil” in this section.
Checking Engine Oil
Check the engine oil level
regularly, every 650 km
(400 mi), especially prior to a
long trip. The engine oil
dipstick handle is a loop. See
Engine Compartment
Overview0378 for the
location.
{Warning
The engine oil dipstick
handle may be hot; it could
burn you. Use a towel or
glove to touch the dipstick
handle.
If a low oil Driver Information
Center (DIC) message displays,
check the oil level.
Follow these guidelines:
.To get an accurate reading,
park the vehicle on level
ground. Check the engine oil
level after the engine has
been off for at least two
hours. Checking the engine
oil level on steep grades or