washer fluid CADILLAC CT4 2023 Owners Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
100 Instruments and Controls
Warning (Continued)
Otherwise the washer fluid
can form ice on the
windshield, blocking your
vision.
{Warning
Before driving the vehicle,
always clear snow and ice
from the hood, windshield,
washer nozzles, roof, and
rear of the vehicle, including
all lamps and windows.
Reduced visibility from snow
and ice buildup could lead to
a crash.
Wiper Parking
If the ignition is turned off
while the wipers are on LO, HI,
or INT with Rainsense
disabled, they will
immediately stop.
If the windshield wiper lever is
then moved to OFF before the
driver door is opened or within 10 minutes, the wipers will
restart and move to the base
of the windshield.
If the ignition is turned off
while the wipers are
performing wipes due to
windshield washing or
Rainsense, the wipers
continue to run until they
reach the base of the
windshield.
Rainsense
If equipped with Rainsense, a
sensor near the top center of
the windshield detects the
amount of water on the
windshield and controls the
frequency of the windshield
wiper.
To turn the Rainsense feature
on or off, select Settings >
Vehicle > Comfort and
Convenience > Rainsense
Wipers > Select ON or OFF.
Keep this area of the
windshield clear of debris to
allow for best system
performance.AUTO :
When enabled, move
the windshield wiper lever to
AUTO. Turn the
Oband on
the wiper lever to adjust the
sensitivity.
.Turn the band up for more
sensitivity to moisture.
.Turn the band down for less
sensitivity to moisture.
.Move the windshield wiper
lever out of the AUTO
position to deactivate
Rainsense.
Wiper Arm Assembly
Protection
When using an automatic car
wash, move the windshield
wiper lever to OFF. This
disables the automatic
Rainsense windshield wipers.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 101
With Rainsense, if the
transmission is in N (Neutral)
and the vehicle speed is very
slow, the wipers will
automatically stop at the base
of the windshield.
The wiper operations return
to normal when the
transmission is no longer in
N (Neutral) or the vehicle
speed has increased.
f:Pull the windshield wiper
lever toward you to spray
windshield washer fluid and
activate the wipers. The
wipers will continue until the
lever is released or the
maximum wash time is
reached. When the windshield
wiper lever is released,
additional wipes may occur
depending on how long the
windshield washer had been
activated. See Washer Fluid
0 393 for information on filling
the windshield washer fluid
reservoir.
Compass
The vehicle has a compass
display on the Driver
Information Center (DIC). The
compass receives its heading
and other information from
the Global Positioning
System (GPS) antenna,
StabiliTrak/Electronic Stability
Control (ESC), and vehicle
speed information.
The compass system is
designed to operate for a
certain number of miles or
degrees of turn before
needing a signal from the GPS
satellites. When the compass
display shows CAL, drive the
vehicle for a short distance in
an open area where it can
receive a GPS signal. The
compass system will
automatically determine when
a GPS signal is restored and
provide a heading again.
Clock
Set the time and date using
the infotainment system. See
"Time/Date" under Settings
0 207.
Power Outlets
The accessory power outlets
can be used to plug in
electrical equipment, such as a
cell phone or MP3 player.
The vehicle has two accessory
power outlets:
.Inside the center console
storage area.
.On the rear of the center
floor console.
Lift the cover to access the
accessory power outlet.
Certain electrical accessories
may not be compatible with
the accessory power outlet
and could overload a vehicle
circuit breaker or adapter
fuse. If overloaded, the circuit
breaker will reset after all
devices are disconnected or if

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/10/22
252 Driving and Operating
Warning (Continued)
and could cause pulling to
one side. You could lose
control of the vehicle.
After driving through a large
puddle of water or a car/
vehicle wash, lightly apply
the brake pedal until the
brakes work normally.
Flowing or rushing water
creates strong forces.
Driving through flowing
water could cause the
vehicle to be carried away.
If this happens, you and
other vehicle occupants
could drown. Do not ignore
police warnings and be very
cautious about trying to
drive through flowing water.
Caution
Driving through deep
puddles or standing water
can cause water to come in(Continued)
Caution (Continued)
through the engine air intake
and damage the engine.
If deep puddles or standing
water cannot be avoided,
proceed with caution and do
not exceed 8 km/h (5 mph).
Do not drive through water
that may come close to or
cover the vehicle’s
underbody.
Hydroplaning
Hydroplaning is dangerous.
Water can build up under the
vehicle's tires so they actually
ride on the water. This can
happen if the road is wet
enough and you are going fast
enough. When the vehicle is
hydroplaning, it has little or no
contact with the road.
There is no hard and fast rule
about hydroplaning. The best
advice is to slow down when
the road is wet.
Other Rainy Weather Tips
Besides slowing down, other
wet weather driving tips
include:
.Allow extra following
distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer
fluid reservoir filled.
.Have good tires with proper
tread depth. See Tires 0413.
.Turn off cruise control.
Hill and Mountain
Roads
Driving on steep hills or
through mountains is different
than driving on flat or rolling
terrain. Tips include:
.Keep the vehicle serviced
and in good shape.
.Check all fluid levels and
brakes, tires, and cooling
system.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
368 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . 369
California PerchlorateMaterials
Requirements . . . . . . . . . . . . . 370
Accessories and Modifications . . . . . . . . . . . . . 370
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . 370
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 373
Engine Oil . . . . . . . . . . . . . . . . . . . . 378
Engine Oil Life System . . . 381
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Hydraulic Clutch . . . . . . . . . . . 383
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 383
Engine Air Cleaner/ Filter . . . . . . . . . . . . . . . . . . . . . . . . . 384
Cooling System . . . . . . . . . . . . 386
Engine Overheating . . . . . . . 391 Washer Fluid . . . . . . . . . . . . . . . . 393
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 393
Brake Pad Life System (If
Equipped) . . . . . . . . . . . . . . . . . . 396
Brake Fluid . . . . . . . . . . . . . . . . . . 398
Battery - North
America . . . . . . . . . . . . . . . . . . . . . 399
All-Wheel Drive . . . . . . . . . . . . 400
Park Brake and P (Park) Mechanism Check . . . . . . . 400
Wiper Blade Replacement . . . . . . . . . . . . . . 401
Windshield Replacement . . . . . . . . . . . . . . 401
Gas Strut(s) . . . . . . . . . . . . . . . . . 402
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . 403
Bulb Replacement
Bulb Replacement . . . . . . . . 403
Halogen Bulbs . . . . . . . . . . . . . . 403
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 403
LED Lighting . . . . . . . . . . . . . . . . 403
Front Turn Signal Lamps . . . . . . . . . . . . . . . . . . . . . . . 404
Electrical System
Electrical SystemOverload . . . . . . . . . . . . . . . . . . . 404
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 406
Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . . 407
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 409
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
All-Season Tires . . . . . . . . . . . . 414
Winter Tires . . . . . . . . . . . . . . . . . 414
Run-Flat Tires . . . . . . . . . . . . . . . 415
Self-Sealing Tires . . . . . . . . . . 415
Low-Profile Tires . . . . . . . . . . 416
Summer Tires . . . . . . . . . . . . . . . 416
Tire Sidewall Labeling . . . . 417
Tire Designations . . . . . . . . . . 418
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 419
Tire Pressure . . . . . . . . . . . . . . . 422
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . 423
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 424

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
374 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer
Fluid 0393.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0386.
3. Engine Air Cleaner/Filter 0384.
4. Engine Cooling Fan (Out of View). See Cooling System
0386.
5. Engine Oil Fill Cap. See Engine Oil 0378.
6. Engine Oil Dipstick. See Engine Oil 0378.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0447.
8. Brake Fluid Reservoir. See Brake Fluid 0398.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0447.
10. Engine Compartment Fuse Block 0407.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
376 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer
Fluid 0393.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0386.
3. Engine Air Cleaner/Filter 0384.
4. Engine Cooling Fan (Out of View). See Cooling System
0386.
5. Engine Oil Fill Cap. See Engine Oil 0378.
6. Cooling System Air Bleeder Cap. See Cooling
System 0386.
7. Engine Oil Dipstick. See Engine Oil 0378.
8. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0447.
9. Brake Fluid Reservoir. See Brake Fluid 0398.
10. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0447. 11. Engine Compartment Fuse
Block. See Engine
Compartment Fuse Block
0407.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
378 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer
Fluid 0393.
2. Engine Coolant Surge Tank and Pressure Cap. See
Cooling System 0386.
3. Engine Air Cleaner/Filter 0384.
4. Engine Cooling Fan (Out of View). See Cooling System
0386.
5. Engine Oil Fill Cap. See Engine Oil 0378.
6. Engine Oil Dipstick. See Engine Oil 0378.
7. Remote Positive (+) Battery Terminal. See
Jump Starting - North
America 0447.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid
0398.
9. Remote Negative (-) Battery Terminal. See
Jump Starting - North
America 0447. 10. Engine Compartment Fuse
Block. See Engine
Compartment Fuse Block
0407.
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 0381.
.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
Overview0373 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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 393
Washer Fluid
What to Use
When windshield washer fluid
is needed, be sure to read the
manufacturer's instructions
before use. If operating the
vehicle in an area where the
temperature may fall below
freezing, use a fluid that has
sufficient protection against
freezing.
Adding Washer Fluid
Open the cap with the washer
symbol on it. Add washer fluid
until the tank is full. See
Engine Compartment
Overview0373 for reservoir
location.
Caution
.Do not use washer fluid
that contains any type of
water repellent coating.
This can cause the wiper
blades to chatter or skip.
.Do not use engine coolant
(antifreeze) in the
windshield washer. It can
damage the windshield
washer system and paint.
.Do not mix water with
ready-to-use washer fluid.
Water can cause the
solution to freeze and
damage the washer fluid
tank and other parts of
the washer system.
.When using concentrated
washer fluid, follow the
manufacturer instructions
for adding water.
.Fill the washer fluid tank
only three-quarters full
when it is very cold. This
allows for fluid expansion
(Continued)
Caution (Continued)
if freezing occurs, which
could damage the tank if it
is completely full.
Brakes
Disc brake linings, except J57
V-Series Blackwing with
carbon ceramic brakes, have
built-in wear indicators that
make a high-pitched warning
sound when the brake linings
are worn and new linings are
needed. The sound can come
and go or can be heard all the
time when the vehicle is
moving, except when applying
the brake pedal firmly. The
V-Series Blackwing has
electronic pad wear sensors.
See Brake Pad Life System (If
Equipped)0396

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 455
Appearance Care
Exterior Care
Locks
Locks are lubricated at the
factory. Use a de-icing agent
only when necessary, and
have the locks greased after
using. See Recommended
Fluids and Lubricants0474.
Washing the Vehicle
To preserve the vehicle finish,
wash it often and out of direct
sunlight.
Caution
Do not use
petroleum-based, acidic,
or abrasive cleaning agents
as they can damage the
vehicle's paint, metal,
or plastic parts. If damage
occurs, it would not be
covered by the vehicle
warranty. Approved cleaning
products can be obtained
(Continued)
Caution (Continued)
from your dealer. Follow all
manufacturer directions
regarding correct product
usage, necessary safety
precautions, and
appropriate disposal of any
vehicle care product.
Caution
Avoid using high-pressure
washes closer than 30 cm
(12 in) to the surface of the
vehicle. Use of power
washers exceeding
8 274 kPa (1,200 psi) can
result in damage or removal
of paint and decals. Automatic Car Wash
Caution
Automatic car washes can
cause damage to the
vehicle, wheels, ground
effects, and convertible top
(if equipped).
Do not use automatic car
washes due to lack of
clearance for the
undercarriage, wide rear
tires, and wheels.
Caution
To avoid damage to a matte
paint finish, do not use an
automatic car wash
equipped with brushes or
scrubbers. Only use
touchless automatic car
washes.
If using an automatic car wash,
follow the car wash
instructions. The windshield
wiper and rear window wiper,
if equipped, must be off.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
458 Vehicle Care
Do not use any of the
following items on lamp
covers:
.Abrasive or caustic agents.
.Washer fluids and other
cleaning agents in higher
concentrations than
suggested by the
manufacturer.
.Solvents, alcohols, fuels,
or other harsh cleaners.
.Ice scrapers or other hard
items.
.Aftermarket appearance
caps or covers while the
lamps are illuminated, due to
excessive heat generated.
Caution
Failure to clean lamps
properly can cause damage
to the lamp cover that would
not be covered by the
vehicle warranty.
Caution
Using wax on low gloss black
finish stripes can increase
the gloss level and create a
non-uniform finish. Clean low
gloss stripes with soap and
water only.
Air Intakes
Clear debris from the air
intakes between the hood and
windshield when washing the
vehicle.
Shutter System
The vehicle may have a
shutter system designed to
help improve fuel economy.
Always keep the shutter
system clear of debris, snow
and ice. If the check engine
light is activated, please check
to see if the shutter system is
clear of debris, snow or ice.
Windshield and Wiper
Blades
Clean the outside of the
windshield with glass cleaner.
Clean rubber wiper blades
using a lint-free cloth or paper
towel soaked with windshield
washer fluid or a mild
detergent. Wash the
windshield thoroughly when
cleaning the blades. Bugs,
road grime, sap, and a buildup
of vehicle wash/wax
treatments may cause wiper
streaking.
Replace the wiper blades if
they are worn or damaged.
Damage can be caused by