2022 CADILLAC CT4 automatic transmission fluid

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
334 VEHICLE CARE
to a year. The engine oil and filter
must be changed at least once a year
and at this time the system must be
reset. Your dealer has trained service
people who will perform this work and
reset the system. It is also important
to check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally,
the oil must be changed at 5 000 km
(3,000 mi) since the last oil change.
Remember to reset the oil life system
whenever the oil is changed.
How to Reset the Engine Oil Life
System
Reset the system whenever the engine
oil is changed so that the system can
calculate the next engine oil change.
To reset the system:1. Using the DIC buttons, display REMAINING OIL LIFE on the DIC.
See Driver Information Center (DIC)
(Base Level) 0109 or
Driver Information Center (DIC)
(Uplevel) 0112. 2. Press and hold the thumbwheel on
the steering wheel. When the
confirmation message displays,
select YES. The oil life will change
to 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is changed.
It cannot be reset accurately until
the next oil change.
The oil life system can also be reset as
follows: 1. Using the DIC buttons, display REMAINING OIL LIFE on the DIC.
See Driver Information Center (DIC)
(Base Level) 0109 or
Driver Information Center (DIC)
(Uplevel) 0112.
2. Fully press and release the accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL SOON
message is not on, the system is
reset.
The system is reset when the
CHANGE ENGINE OIL SOON message
is off. If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not been reset. Repeat the
procedure.
Automatic Transmission
Fluid
How to Check Automatic
Transmission Fluid
It is not necessary to check the
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.
The vehicle is not equipped with a
transmission fluid level dipstick.
There is a special procedure for
checking and changing the
transmission fluid. Because this
procedure is difficult, this should be
done at the dealer. Contact your dealer
for additional information.

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
SERVICE AND MAINTENANCE 413
Maintenance Schedule
Additional Required Services -
Severe12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
204 000 km/127,500 mi
216 000 km/135,000 mi
228 000 km/142,500 mi
240 000 km/150,000 mi
Rotate tires, if recommended for the vehicle, and
perform Required Services. (1) Check engine oil level
and oil life percentage. Change engine oil and filter,
if needed.
If equipped, check engine air filter life percentage
and status. Change engine air filter, if needed.
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
Replace passenger compartment air filter. (2)@ @@@@@
If the vehicle is not equipped with the engine air
filter life system, replace engine air cleaner filter. (3)@ @@
Replace spark plugs. Inspect spark plug wires and/or
boots.@ @
Change automatic transmission fluid and filter.@@@
Change transfer case fluid, if equipped with
AWD. (4)@@@
Change rear axle fluid, if equipped with limited slip
differential. (4)@@@
Change rear axle fluid, without limited slip
differential. (4)@ @
Change front axle fluid, if equipped with AWD. (4)@@@
Drain and fill engine cooling system. (5)@
Visually inspect accessory drive belts. (6)@
Replace brake fluid. (7)
Replace windshield wiper blades. (8)
@ @ @ @ @ @ @ @ @ @
Replace hood and/or body lift support gas struts. (9)@ @
Replace air conditioning desiccant. (10)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
SERVICE AND MAINTENANCE 417
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-Speed Transmission) 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 System0338.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil0331.
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
418 SERVICE AND MAINTENANCE
UsageFluid/Lubricant
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.
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter
I2.0L L4 Engine 84498926 A3245C
I2.7L L4 Engine 84498926 A3245C
I3.6L V6 Engine (Driver Side) 84335354 A3235C
I3.6L V6 Engine (Passenger Side) 84335354 A3235C

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
426 TECHNICAL DATA
ApplicationCapacities
Metric English
IElectronic Limited Slip (V-Series Blackwing) 1.3 L
1.3 qt
Wheel Nut Torque (M12) 140Y 100 lb ft
Wheel Nut Torque (M14) (V-Series Blackwing) 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.
Engine Specifications
Engine VIN CodeTransmission Spark Plug Gap
2.0L L4 Turbo Engine (LSY) KAutomatic0.65–0.75 mm (0.026–0.030 in)
2.7L L4 Turbo Engine (L3B) LAutomatic0.65–0.75 mm (0.026–0.030 in)
3.6L V6 Twin Turbo Engine (LF4) YAutomatic
Manual 0.75–0.90 mm (0.030–0.035 in)
Spark plug gaps are preset by the manufacturer. Re-gapping the spark plug is not recommended and can damage the
spark plug.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
452 INDEX
Antilock Brake System (ABS) . . . . . . 253Warning Light . . . . . . . . . . . . . . . . . . . . 102
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . . . . . 180
Assistance Systems for Driving . . . . 301
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . 295
Audio
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Auto Stop Stop/Start System . . . . . . . . . . . . . . . . 235
Automatic Dimming Mirrors . . . . . . . . . . . . . . . . . . 25
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 17
Emergency Braking (AEB) . . . . . . . . 303
Headlamp System . . . . . . . . . . . . . . . . 130
Transmission . . . . . . . . . . . . . . . . 242, 244
Transmission Fluid . . . . . . . . . . . . . . . 334
Vehicle Hold Light . . . . . . . . . . . . . . . . 103
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . 248, 249
Automatic Vehicle Hold (AVH) . . . . 256
Avoiding Untrusted Media
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147B
BatteryExterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Load Management . . . . . . . . . . . . . . . . 134
Power Protection . . . . . . . . . . . . . . . . . . 135
Battery - North America . . . . . .349, 390
Blade Replacement, Wiper . . . . . . . . . 350
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . 175, 176
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . 150
Brake Electric Boost . . . . . . . . . . . . . . . . . . . . . 253
Parking, Electric . . . . . . . . . . . . . . . . . . 254
System Warning Light . . . . . . . . . . . . 101
Brake Pad Life System . . . . . . . . . . . . . . 346
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344 Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Pad Life System . . . . . . . . . . . . . . . . . . . 346
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Automatic Emergency (AEB) . . . . . 303
Reverse Automatic . . . . . . . . . . . . . . . . 299
Braking System Front Pedestrian (FPB) . . . . . . . . . . . 305
Break-In, New Vehicle . . . . . . . . . . . . . . 231
Buckle To Drive . . . . . . . . . . . . . . . . . . . . . . 41 Bulb Replacement
Front Turn Signal Lamps . . . . . . . . 353
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 352
Headlamp Aiming . . . . . . . . . . . . . . . . 352
Headlamps . . . . . . . . . . . . . . . . . . . . . . . . 352
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . . . . . 352
Buying New Tires . . . . . . . . . . . . . . . . . . . 379
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 323
California Proposition 65 Warning . . . . . . . . . . . . . . . . . . .349, 390, Back Cover
Camera Rear Vision (RVC) . . . . . . . . . . . . . . . . . 295
Canadian Vehicle Owners . . . . . . . . . . . . . 1
Capacities and Specifications . . . . . . 424
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . 241
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Winter Driving . . . . . . . . . . . . . . . . . . . . 226
Cargo
Management System . . . . . . . . . . . . . . 81
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INDEX 455
Exterior Lamp Controls . . . . . . . . . . . . 128
Exterior Lamps Off Reminder . . . . . . 130
Exterior Lighting Battery Saver . . . . 135
F
Filter,Engine Air Cleaner . . . . . . . . . . . . . . . . 336
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 130
Flashers, Hazard Warning . . . . . . . . . . 131
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
Fluid Automatic Transmission . . . . . . . . . 334
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 23
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Front Seats Heated and Ventilated . . . . . . . . . . . . 37
Front Turn Signal Lamps . . . . . . . . . . 353
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Economy, Driving for Better . . . . . 209 Fuel (cont'd)
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . . . . . . 314
Filling the Tank . . . . . . . . . . . . . . . . . . . 312
Foreign Countries . . . . . . . . . . . . . . . . . 312
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low Fuel Warning Light . . . . . . . . . 108
Prohibited Fuels . . . . . . . . . . . . . . . . . . 312
Recommended . . . . . . . . . . . . . . . . . . . . 311
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Fuses and Circuit Breakers . . . . . . . 355
Instrument Panel Fuse Block . . . . 358
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
G
Garage Door Opener . . . . . . . . . . . . . . . . 125Programming . . . . . . . . . . . . . . . . . . . . . . 125
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . 351
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . . . 96, 97
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 95 Gauges (cont'd)
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . 95
Trip Odometer . . . . . . . . . . . . . . . . . . . . . 95
Warning Lights and Indicators . . . 89
General Information Service and Maintenance . . . . . . . . 407
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 323
Global Positioning System (GPS) . . . . . . . . . . . . . . . . . . . . . . 162
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Guidance Problems with the Route . . . . . . . . . 163
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . 352
Hazard Warning Flashers . . . . . . . . . . 131
HD Radio Technology . . . . . . . . . . . . . . 145
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 30
Head-up Display . . . . . . . . . . . . . . . . . . . . 115
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 130
Bulb Replacement . . . . . . . . . . . . . . . . 352
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . . . . 130