transmission CADILLAC CT4 2023 Manual PDF

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
408 Vehicle Care
Fuses Usage
1 Long Range RadarFront Sensor
2 Park/Daytime Running Lamps
3 Exterior Lighting Module 4
4 Exterior Lighting Module 7
5 Headlamp Level
6 –
Fuses Usage
7 Electronic Brake
Control Module
8 Washer Pump
9 –
10 –
11 –
12 Horn
13 Front Wiper
Fuses Usage
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
27 Injectors/Ignition 2
28 Charged Air Cooler/ Not Used
29 Transmission Aux Oil Pump/Transmission
Reverse Lock Out

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 411
Fuses Usage
29–
30 –
31 Headlamp Level
32 –
33 Body Ignition/IP Ignition
34 Exhaust Valve
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 –
Rear Compartment
Fuse Block
The rear compartment fuse
block is behind a cover on the
driver side of the rear
compartment.
The vehicle may not be
equipped with all of the fuses,
relays, and features shown.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
448 Vehicle Care
2.0L L4 Engine Shown, 3.6LV6 Engine and 2.7L L4 Engine Similar
Connection Points and
Sequence
1. Discharged Battery Positive (+) Terminal
2. Good Battery Positive (+) Terminal
3. Good Battery Negative (−) Terminal
4. Discharged Battery Negative Grounding (−)
Terminal
The jump start positive
terminal (+) and negative post
(−) are on the battery of the
vehicle providing the jump
start.
The jump start remote positive
terminal (+) and the remote
negative grounding terminal (−)
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
(Continued)
Caution (Continued)
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.
Caution
If any accessories are left on
or plugged in during the
jump starting procedure,
they could be damaged. The
repairs would not be
covered by the vehicle
warranty. Whenever
possible, turn off or unplug
all accessories on either
vehicle when jump starting.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 451
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) 0272 or
Automatic Transmission
(Electronic Shifter) 0275 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
0 447 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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
452 Vehicle Care
Install the tow eye into the
socket and turn it until it is
fully tightened. When the tow
eye is removed, reinstall the
cover with the notch in the
original position.
Rear Tow Eye
If equipped, carefully open the
cover by using the small notch
that conceals the rear tow eye
socket. Install the tow eye into
the socket and turn it until it is
fully tightened. When the tow
eye is removed, reinstall the
cover with the notch in the
original position.
Transporting a
Disabled Vehicle
(Mechanical Shifter)
Caution
Incorrectly transporting a
disabled vehicle may cause
damage to the vehicle. Use
proper tire straps to secure
the vehicle to the flatbed
tow truck. Do not strap or
hook to any frame,
underbody, or suspension
component not specified
below. Do not move vehicles
with drive axle tires on the
ground. Damage is not
covered by the vehicle
warranty.
Caution
The vehicle may be equipped
with an electric parking
brake and/or a mechanical
transmission range select
shifter. In the event of a loss(Continued)
Caution (Continued)
of 12-volt battery power, the
electric parking brake
cannot be released, and the
vehicle cannot be shifted to
N (Neutral). Tire skates or
dollies must be used under
the non-rolling tires to
prevent damage while
loading/unloading the
vehicle. Dragging the vehicle
will cause damage not
covered by the vehicle
warranty.
Caution
The vehicle may be equipped
with a tow eye. Improper use
of the tow eye may cause
damage to the vehicle and is
not covered by the vehicle
warranty. If equipped, use
the tow eye to load the
vehicle onto a flatbed tow
truck from a flat road
surface, or to move the(Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Vehicle Care 453
Caution (Continued)
vehicle a very short distance
at a walking pace. The tow
eye is not designed for
off-road recovery. The
vehicle must be in
N (Neutral) with the electric
parking brake released when
using the tow eye.
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 12-volt battery is dead
and/or electric parking brake
is not released, the vehicle
will not move. Try to jump
start the vehicle with a
known good 12-volt battery,
shift the car into N (Neutral),
and release the electric
parking brake. Refer to Jump
Starting - North America
0
447.
.If unsuccessful, the vehicle
will not move. Tire skates or
dollies must be used under
the non-rolling tires to
prevent vehicle damage.
Front Tow Eye
Caution
Improper use of the tow eye
can damage the vehicle.
If equipped, use the tow eye
to load a disabled vehicle
onto a flatbed tow truck
from a flat road surface,
or to move the vehicle a
short distance. Use caution
and low speeds. The
transmission must be
in (N) Neutral when moving
the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Service and Maintenance 471
Severe Conditions
Requiring More Frequent
Maintenance*
.Public service, military,
or commercial use vehicles
to include the following:
‐Ambulances, police cars,
and emergency rescue
vehicles.
‐ Civilian vehicles such as
light duty pick-up trucks,
SUVs, and passenger cars
that are used in military
applications.
‐ Recovery vehicles such as
tow trucks and flatbed
single vehicle carriers or
any vehicle that is
consistently used in towing
trailers or other loads.
‐ High use commercial
vehicles such as courier
delivery vehicles, private
security patrol vehicles,
or any vehicles that
operate on a 24–hour
basis. ‐
Any vehicle consistently
operated in a high sand or
dust environment such as
those used on oil pipelines
and similar applications.
.Vehicles that are regularly
used for short trips of 6 km
(4 mi) or less.
The oil life indicator will show
you when to change the oil
and filter. Under severe
conditions the indicator may
come on before 12 000 km
(7,500 mi).
* Footnote: Under extreme
driving conditions listed
above, it may be necessary
to replace your spark plugs
at more frequent intervals.
For further assistance in
determining the most
suitable service maintenance
intervals for your vehicle,
please contact your
authorized GM Dealer. Extreme service is for
vehicles mainly driven
off-road in four-wheel drive
or used in farming, mining,
forestry, or snow plowing.Additional Required
Services
—Severe Service
Every 72 000 km (45,000 mi)
.Change automatic
transmission fluid and filter.
.Change transfer case fluid,
if equipped with AWD. Do
not directly power wash the
transfer case and/or front/
rear axle output seals. High
pressure water can
overcome the seals and
contaminate the transfer
case fluid. Contaminated
fluid will decrease the life of
the transfer case and/or
axles and should be
replaced.
.Change rear axle fluid, with
limited slip differential. Do
not directly power wash the
transfer case and/or front/
rear axle output seals. High

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Service and Maintenance 473
Exterior Lights
.Visual inspection
Windshield and Wipers
.Visual inspection
Battery
.Battery visual inspection
.Battery test results
.Battery cables and
connections
Systems, Fluids, and
Visible Leak Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
.Fuel system
.Windshield washer fluid
Tire Inspection
.Tire pressure, tread depth,
and wear
.Rotation, if applicable
.Alignment check, optional
.Reset tire pressure monitor
.Check tire sealant expiration
date, if equipped
.Check spare tire, if equipped
Brakes
.Check brake system
Visible and Functional
Inspections
.Seat belt components
.Exhaust system
.Accelerator pedal
.Passenger compartment air
filter, if equipped
.Engine air filter
.Hoses
.Belts
.Shocks and struts
.Steering components
.Axle boots or driveshaft and
u-joints
.Compartment lift struts,
if equipped
.Floor mats secured, no
interference with pedals
.Horn
.Ignition lock, if equipped
.Starter switch
.Evaporative control system
Lubricate
.Chassis components
Special Application
Services
.Severe Commercial Use
Vehicles Only: Lubricate
chassis components every
oil change.
.Have underbody flushing
service performed. See
"Underbody Maintenance" in
Exterior Care 0455.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
474 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not
listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission (8-SpeedTransmission) DEXRON-HP Automatic Transmission Fluid.
Automatic Transmission (10-Speed Transmission) DEXRON ULV Automatic Transmission Fluid.
Chassis Lubrication Chassis lubricant meeting requirements of NLGI #2, Category LB or GC-LB. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System0386.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil 0378.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube. See your dealer.
Manual Transmission DEXRON III Automatic Transmission Fluid.
Rear Axle/Front Axle (All-Wheel Drive) See your dealer.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Technical Data 479
The plate will correspond to
the last six digits in the VIN.
1. Vehicle Build:2−Advanced Regular
Production
3 −Advanced Special
Production
4 −Regular Production
5 −Special Production
2. Transmission 6−6-speed Manual
1 − 10-speed Automatic
3. Sequence Number
Service Parts
Identification
There may be a large barcode
on the certification label on
the center pillar that you can
scan for the following
information:
.Vehicle Identification
Number (VIN)
.Model designation
.Paint information
.Production options
If there is not a large barcode
on this label, then you will find
this same information on a
label inside of the trunk.