2023 CADILLAC CT5 transmission oil

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 367
Towing with a Stability
Control System
When towing, the stability
control system might be
heard. The system reacts to
vehicle movement caused by
the trailer, which mainly occurs
during cornering. This is
normal when towing heavier
trailers.
Following Distance
Stay at least twice as far
behind the vehicle ahead as
you would when driving
without a trailer. This can help
to avoid heavy braking and
sudden turns.
Passing
More passing distance is
needed when towing a trailer.
The combination of the vehicle
and trailer will not accelerate
as quickly and is much longer
than the vehicle alone. It is
necessary to go much farther
beyond the passed vehiclebefore returning to the lane.
Pass on level roadways. Avoid
passing on hills if possible.
Backing Up
Hold the bottom of the
steering wheel with one hand.
To move the trailer to the left,
move that hand to the left. To
move the trailer to the right,
move that hand to the right.
Always back up slowly and,
if possible, have someone
guide you.
Making Turns
Caution
Turn more slowly and make
wider arcs when towing a
trailer to prevent damage to
your vehicle. Making very
sharp turns could cause the
trailer to contact the vehicle.
Make wider turns than normal
when towing, so trailer will not
go over soft shoulders, over
curbs, or strike road signs,
trees, or other objects. Always signal turns well in advance.
Do not steer or brake
suddenly.
Driving on Grades
Reduce speed and shift to a
lower gear before starting
down a long or steep downhill
grade. If the transmission is
not shifted down, the brakes
may overheat and result in
reduced braking efficiency.
Vehicles can tow in D (Drive).
Shift the transmission to a
lower gear if the transmission
shifts too often under heavy
loads and/or hilly conditions.
When towing at higher
altitudes, engine coolant will
boil at a lower temperature
than at lower altitudes. If the
engine is turned off
immediately after towing at
high altitude on steep uphill
grades, the vehicle could show
signs similar to engine
overheating. To avoid this, let
the engine run, preferably on
level ground, with the

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
368 Driving and Operating
transmission in P (Park) for a
few minutes before turning
the engine off. If the overheat
warning comes on, see Engine
Overheating0398.
Parking on Hills
{Warning
To prevent serious injury or
death, always park your
vehicle and trailer on a level
surface when possible.
When parking your vehicle and
your trailer on a hill: 1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into
the curb if facing downhill
or into traffic if facing
uphill.
2. Have someone place chocks under the trailer
wheels. 3. When the wheel chocks
are in place, gradually
release the brake pedal to
allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal. Then apply the parking
brake and shift into
P (Park).
5. Release the brake pedal.
Leaving After Parking on
a Hill
1. Apply and hold the brake pedal.
.Start the engine.
.Shift into the
desired gear.
.Release the parking
brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance when Trailer
Towing
The vehicle needs service
more often when used to tow
trailers. See Maintenance
Schedule 0471. It is especially
important to check the
automatic transmission fluid,
engine oil, axle lubricant, belts,
cooling system, and brake
system before and during
each trip.
Check periodically that all nuts
and bolts on the trailer hitch
are tight.
Engine Cooling when
Trailer Towing
The cooling system may
temporarily overheat during
severe operating conditions.
See Engine Overheating
0 398.

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 413
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 CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Service and Maintenance 473
.Drain and fill engine cooling
system. Or every six years,
whichever comes first. See
Cooling System0392.
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 manual transmission
fluid. (If equipped)
.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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
Service and Maintenance 475
Diagnostics
.OnStar active, if equipped
.Service history/recall check
Engine Oil and Filter
.Engine oil
.Oil life monitor
‐Reset oil life monitor
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 0457.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
476 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 DEXRON ULV Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0392.
Engine Oil –2.0L L4 Turbo (LSY) and
3.0L V6 Twin Turbo (LGY) Engines Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil
0383.
Engine Oil –6.2L V8 (LT4) Engine Engine oil meeting the dexosR specification of the proper SAE viscosity grade.
Mobil 1 dexosR full synthetic is recommended. See Engine Oil 0383.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl 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. Transfer Case (All-Wheel Drive) See your dealer.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/11/22
INDEX 515
E
ElectricBrake Boost . . . . . . . . . . . . . . . . . . 287
Parking Brake . . . . . . . . . . . . . . 288
Parking Brake Light . . . . . . . 128
Electrical Equipment, Add-On . . . . . . . . 372
System Overload . . . . . . . . . . 409
Electrical System Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . . . 412
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . . 411
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . 416
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . 502
Engine Air Cleaner/Filter . . . . . . . . . . 389
Air Filter Life System . . . . . 389
Check Light(Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 125
Compartment Overview . . . . . . . . . . . . . . . . . . . 378 Engine (cont'd)
Coolant
Temperature
Gauge . . . . . . . . . . . . . . . . . . 121, 122
Coolant Temperature Warning Light . . . . . . . . . . . . . . 131
Cooling System . . . . . . . . . . . . 392
Drive Belt Routing . . . . . . . . . 484
Exhaust . . . . . . . . . . . . . . . . . . . . . . . 276
Heater . . . . . . . . . . . . . . . . . . . . . . . . . 272
Oil Life System . . . . . . . . . . . . . 386
Oil Pressure Light . . . . . . . . . . 134
Overheating . . . . . . . . . . . . . . . . . 398
Power Messages . . . . . . . . . . . 148
Running While Parked . . . . 276
Starting . . . . . . . . . . . . . . . . . . . . . . 269
Entry Lighting . . . . . . . . . . . . . . . . . 158
Equipment, Towing . . . . . . . . . . 371
Event Data Recorders . . . . . 499
Exit Lighting . . . . . . . . . . . . . . . . . . . 158
Extended Parking . . . . . . . . . . . .275
Extender, Seat Belt . . . . . . . . . . . 64
Exterior Lamp Controls . . . . . . . . . . . . . . 152
Lamps Off Reminder . . . . . . 154
Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . 160
F
FilterEngine Air Cleaner . . . . . . . . 389
Flash-to-Pass . . . . . . . . . . . . . . . . . . 154
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . 156
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 443
Floor Mats . . . . . . . . . . . . . . . . . . . . . 467
Fluid Automatic
Transmission . . . . . . . . . . . . . . 388
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 404
Washer . . . . . . . . . . . . . . . . . . . . . . . 399
Folding Mirrors . . . . . . . . . . . . . . . . . 33
Forward
Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . . 346
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 496
Front Heated and VentilatedSeats . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Pedestrian Braking (FPB) System . . . . . . . . . . . . . . 351
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 362
Economy, Driving forBetter . . . . . . . . . . . . . . . . . . . . . . . . 241