2022 CADILLAC CT4 transmission

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 335
Caution
Use of the incorrect automatic
transmission fluid may damage the
vehicle, and the damage may not be
covered by the vehicle warranty.
Always use the correct automatic
transmission fluid. See
Recommended Fluids and Lubricants
0417.
Change the fluid and filter at the
intervals listed in Maintenance
Schedule 0408, and be sure to use the
fluid listed in Recommended Fluids and
Lubricants 0417.
Manual Transmission Fluid
It is not necessary to check the
manual transmission fluid level.
A transmission fluid leak is the only
reason for fluid loss. If a leak occurs,
take the vehicle to your dealer and
have it repaired as soon as possible.
See Recommended Fluids and
Lubricants 0417 for the proper fluid
to use.
Hydraulic Clutch
For vehicles with a manual
transmission, it is not necessary to
regularly check brake/clutch fluid
unless there is a leak suspected.
Adding fluid will not correct a leak.
A fluid loss in this system could
indicate a problem. Have the system
inspected and repaired.
When to Check and What to Use
The brake/hydraulic clutch fluid
reservoir cap has this symbol on it.
See Engine Compartment Overview
0 326 for reservoir location. The
common hydraulic clutch and brake
master cylinder fluid reservoir is filled
with brake fluid as indicated on the
reservoir cap. See Brake Fluid0348 for
brake fluid to use.
How to Check and Add Fluid
Visually check the brake/clutch fluid
reservoir to make sure the fluid level
is at the MIN (minimum) line on the
side of the reservoir. The brake/
hydraulic clutch fluid system should
be closed and sealed.
Do not remove the cap to check the
fluid level or to top-off the fluid level.
Remove the cap only when necessary
to add the proper fluid until the level
reaches the MIN line.
Engine Air Filter Life
System
If equipped, this feature provides the
engine air filter’s remaining life and
best timing for a change. The timing
to change an engine air filter depends
on driving and environmental
conditions.
When to Change the Engine Air
Filter
When the Driver Information Center
(DIC) displays a message to replace
the engine air filter at the next oil
change, follow this timing.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
348 VEHICLE CARE
Brake Fluid
The brake/clutch master cylinder
reservoir is filled with GM approved
DOT 4 brake fluid as indicated on the
reservoir cap. SeeEngine Compartment
Overview 0326 for the location of the
reservoir.
Checking Brake Fluid
Place the vehicle in P (Park) or
Neutral with the parking brake applied
if equipped with a manual
transmission. On a level surface, the
brake fluid level should be between
the minimum and maximum marks
on the brake fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
.Normal brake lining wear. When
new linings are installed, the fluid
level goes back up.
.A fluid leak in the brake/clutch
hydraulic system. Have the brake/
clutch hydraulic system fixed. With
a leak, the brakes will not work well.
Always clean the brake fluid reservoir
cap and the area around the cap
before removing it.
Do not top off the brake/clutch fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are installed.
Add or remove fluid, as necessary,
only when work is done on the brake/
clutch hydraulic system.
{Warning
If too much brake fluid is added, it
can spill on the engine and burn,
if the engine is hot enough. You or
others could be burned, and the
vehicle could be damaged. Add
brake fluid only when work is done
on the brake/clutch hydraulic
system. When the brake/clutch fluid falls to a
low level, the brake warning light
comes on. See
Brake System Warning
Light 0101.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid at
the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0408.
What to Add
Use only GM approved DOT 4 brake
fluid from a clean, sealed container.
See Recommended Fluids and
Lubricants 0417.{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
350 VEHICLE CARE
Park Brake and P (Park)
Mechanism Check
{Warning
When you are doing this check, the
vehicle could begin to move. You or
others could be injured and
property could be damaged. Make
sure there is room in front of the
vehicle in case it begins to roll. Be
ready to apply the regular brake at
once should the vehicle begin
to move.
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping your
foot on the regular brake, set the
parking brake.
.To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.
.Automatic transmission vehicles
only: To check the P (Park)
mechanism's holding ability: With the engine running, shift to P (Park).
Then release the parking brake
followed by the regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear and cracking. See
Maintenance Schedule 0408.
Replacement blades come in different
types and are removed in different
ways. For proper type and length, see
Maintenance Replacement Parts 0418.
Caution
Allowing the wiper arm to touch
the windshield when no wiper blade
is installed could damage the
windshield. Any damage that occurs
would not be covered by the vehicle
warranty. Do not allow the wiper
arm to touch the windshield.
To replace the windshield wiper blade: 1. Pull the windshield wiper assembly away from the windshield.
2. Lift up on the latch in the middleof the wiper blade where the wiper
arm attaches.
3. With the latch open, pull the wiper blade down toward the windshield
far enough to release it from the
J-hooked end of the wiper arm.
4. Remove the wiper blade.
5. Reverse Steps 1–3 for wiper blade replacement.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 357
FusesUsage
13 Front Wiper
14 Exterior Lighting Module 6
15 Exterior Lighting Module 1
16 Exterior Lighting Module 5
17 Exterior Lighting Module 3
18 Aero Shutter
19 –
20 –
21 Virtual Key System/ Power Sounder
Module
22 Engine Control Module Battery
23 Transmission Control Module
24 Active Engine Mount
25 –
26 Engine Control Module Fuses
Usage
27 Injectors/Ignition 2
28 Charged Air Cooler
29 Transmission Aux Oil Pump/Transmission
Reverse Lock Out
30 Injectors/Ignition 1
31 Emissions 1
32 Emissions 2
33 Starter Solenoid
34 –
35 –
36 Starter Pinion
37 AC Clutch
38 –
39 –
40 –
41 –
42 Water Pump
43 –
44 – Relays
Usage
47 –
48 Front Wiper Speed
49 Front Wiper Control
51 –
52 Engine Control Module
53 Starter Solenoid
54 Starter Pinion
55 –
57 AC Clutch
58 –

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
360 VEHICLE CARE
FusesUsage
21 Driver Monitor System/Performance
Data Recorder
22 –
23 –
24 –
25 USB
26 –
27 –
28 –
29 –
30 –
31 Headlamp Level
32 –
33 Body Ignition/IP Ignition
34 Exhaust Valve Fuses
Usage
35 Transmission Control Module Ignition/
Engine Control
Module Ignition/Shift
Ignition/Brake
Ignition
36 Shift Module
37 Body Control Module 1/Electronic
Park Brake Switch
38 Center Stack Module
39 Steering Wheel Controls
40 Body Control Module 2
41 Body Control Module 3
42 Body Control Module 4 Circuit
Breakers Usage
CB1 Auxiliary Power Outlet 1
CB2 Auxiliary Power Outlet 2
Relays Usage
1 Run After Park/ Accessory
2 Run Crank
3 –
4 –
5 –

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
368 VEHICLE CARE
to carry. The speed rating is the
maximum speed a tire is certified
to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of air
inside the tire pressing outward
on each square inch of the tire.
Air pressure is expressed in kPa
(kilopascal) or psi (pounds per
square inch).
Accessory Weight
:The combined
weight of optional accessories.
Some examples of optional
accessories are automatic
transmission, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of
a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials. Bead
:The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in
which the plies are laid at
alternate angles less than
90 degrees to the centerline of the
tread.
Cold Tire Pressure
:The amount
of air pressure in a tire, measured
in kPa (kilopascal) or psi (pounds
per square inch) before a tire has
built up heat from driving. See
Tire Pressure 0370.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil, and
coolant, but without passengers
and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety Standards. The DOT code includes
the Tire Identification Number
(TIN), an alphanumeric designator
which can also identify the tire
manufacturer, production plant,
brand, and date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
0 228.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0228.
GAWR RR
:Gross Axle Weight
Rating for the rear axle. See
Vehicle Load Limits 0228.
Intended Outboard Sidewall
:
The side of an asymmetrical tire
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric unit
for air pressure.
Light Truck (LT-Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
VEHICLE CARE 391
{Warning
Batteries can hurt you. They can be
dangerous because:
.They contain acid that can
burn you.
.They contain gas that can
explode or ignite.
.They contain enough electricity
to burn you.
If you do not follow these steps
exactly, some or all of these things
can hurt you.
Caution
Ignoring these steps could result in
costly damage to the vehicle that
would not be covered by the vehicle
warranty. Trying to start the vehicle
by pushing or pulling it will not
work, and it could damage the
vehicle.
3.6L V6 Shown, 2.0L L4 Engine and 2.7L L4 Engine Similar
1. Discharged Battery Remote
Positive Terminal
2. Discharged Battery Negative Grounding Terminal
3. Good Battery Negative Terminal
4. Good Battery Positive Terminal
The jump start positive terminal (4)
and negative post (3) are on the
battery of the vehicle providing the
jump start. The jump start remote positive
terminal (1) and the remote negative
grounding terminal (2) for the
discharged battery are on the
passenger side of the vehicle.
The positive jump start connection for
the discharged battery is under a
cover. Lift the cover to expose the
terminal.
1. Check the other vehicle. It must have a 12-volt battery with a
negative ground system.
Caution
If the other vehicle does not have a
12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. Position the two vehicles so that they are not touching.
3. Set the parking brake firmly and put the shift lever in P (Park) with
an automatic transmission,
or Neutral with a manual
transmission.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
394 VEHICLE CARE
Contact a professional towing service
if the disabled vehicle must be
transported. GM recommends a
flatbed tow truck to transport a
disabled vehicle. Use ramps to help
reduce approach angles, if necessary.
If equipped, a tow eye may be located
near the spare tire or emergency jack.
Do not use the tow eye to pull the
vehicle from the snow, mud, sand,
or ditch. Tow eye threads may have
right or left-hand threads. Use caution
when installing or removing the
tow eye.
The vehicle must be in N (Neutral)
and the electric parking brake must be
released when loading the vehicle
onto a flatbed tow truck.
.If the vehicle is equipped with car
wash mode and has 12-volt battery
power, refer to“Car Wash Mode ”
under Automatic Transmission
(Mechanical Shifter) 0242 or
Automatic Transmission (Electronic
Shifter) 0244 to place the vehicle in
N (Neutral).
.If the 12-volt battery is dead and/or
the engine will not start, the vehicle
will not move. Try to jump start the
vehicle. Refer to Jump Starting -
North America 0390 and if the
jump start is successful, retry the
“Car Wash Mode ”procedure.
.If jump starting is unsuccessful, the
vehicle will not move. Tire skates or
dollies must be used under the
non-rolling tires to prevent vehicle
damage.
V-Series Blackwing Only
Due to low ramp angles on the
V-Series Blackwing, use care when
loading the vehicle onto a flatbed carrier. Front spring spacers were
provided for lifting the front
suspension if more clearance is
necessary when towing.
Front Tow Eye
The vehicle is equipped with a tow
eye. Only use the tow eye to pull the
vehicle onto a flatbed car carrier from
a flat road surface. Do not use the tow
eye to pull the vehicle from snow,
mud, or sand. The tow eye is located
under the carpet in the trunk.
Carefully open the cover in the fascia
by using the small notch that conceals
the tow eye socket.