2022 CADILLAC CT5 engine oil

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
322 DRIVING AND OPERATING
necessary to go much farther beyond
the passed vehicle before 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 TurnsCaution
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
transmission in P (Park) for a few
minutes before turning the engine off.
If the overheat warning comes on, see
Engine Overheating 0347.
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.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
DRIVING AND OPERATING 323
.Shift into a 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 0410. 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
0 347.
Trailer Towing (LSY 2.0L
L4 and LGY 3.0L
V6 Engines Only)
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer for
important information about
towing a trailer with the vehicle.
Never tow a trailer with a V-Series or
V-Series Blackwing. These models are
not designed or intended to tow a
trailer.
Trailer Weight
{Warning
Never exceed the towing capacity
for your vehicle.
Safe trailering requires monitoring the
weight, speed, altitude, road grades,
outside temperature, dimensions of the front of the trailer, and how
frequently the vehicle is used to tow a
trailer.
Before towing a trailer, always
separately weigh:
.the total weight on the vehicle's
tires.
.the trailer.
.the trailer tongue.
{Warning
You and others could be seriously
injured or killed if the trailer is too
heavy or the trailer brakes are
inadequate for the load. The vehicle
may be damaged, and the repairs
would not be covered by the vehicle
warranty.
Only tow a trailer if all the steps in
this section have been followed. Ask
your dealer for advice and
information about towing a trailer.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 327
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 328
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 328
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 328
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 329
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 331
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 336
Engine Oil Life System . . . . . . . . . . . 338
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Manual Transmission Fluid . . . . . 339
Hydraulic Clutch . . . . . . . . . . . . . . . . . 340
Engine Air Filter Life System . . . . 340
Engine Air Cleaner/Filter . . . . . . . . . 341
Cooling System . . . . . . . . . . . . . . . . . . . 343
Engine Overheating . . . . . . . . . . . . . . 347
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 348
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Brake Pad Life System (If Equipped) . . . . . . . . . . . . . . . . . . . . . . . 351
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 352 Battery - North America . . . . . . . . . 353
All-Wheel Drive . . . . . . . . . . . . . . . . . . 354
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 354
Wiper Blade Replacement . . . . . . . 355
Windshield Replacement . . . . . . . . 355
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 356
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 357
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 357
Electrical System
Electrical System Overload . . . . . . 357
Fuses and Circuit Breakers . . . . . . 359
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Instrument Panel Fuse Block . . . . 362
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
All-Season Tires . . . . . . . . . . . . . . . . . . 367
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 368
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 368
Self-Sealing Tires . . . . . . . . . . . . . . . . . 369
Low-Profile Tires . . . . . . . . . . . . . . . . . 369
Summer Tires . . . . . . . . . . . . . . . . . . . . 369
Tire Sidewall Labeling . . . . . . . . . . . 370 Tire Designations . . . . . . . . . . . . . . . . . 371
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 372
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 374
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 375
Tire Pressure Monitor System . . . 376
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 377
Tire Inspection . . . . . . . . . . . . . . . . . . . 380
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 380
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Buying New Tires . . . . . . . . . . . . . . . . 382
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 384
Uniform Tire Quality Grading . . . 384
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 385
Wheel Replacement . . . . . . . . . . . . . . 386
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 386
If a Tire Goes Flat . . . . . . . . . . . . . . . . 387
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 388
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . . . 394
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . . . . . 394

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
332 VEHICLE CARE
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Air Cleaner/Filter 0341.
4. Engine Cooling Fan (Out of View). See Cooling System 0343.
5. Engine Oil Fill Cap. See Engine Oil
0 336.
6. Engine Oil Dipstick. See Engine Oil
0 336.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0394.
8. Brake Fluid Reservoir. See Brake
Fluid 0352.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
334 VEHICLE CARE
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Oil Dipstick. See Engine Oil
0 336.
4. Engine Air Cleaner/Filter 0341.
5. Engine Cooling Fan (Out of View). See Cooling System 0343.
6. Engine Oil Fill Cap. See Engine Oil
0 336.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0394.
8. Brake Fluid Reservoir. See Brake
Fluid 0352.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 335
6.2L V8 Engine
1. Windshield Washer Fluid Reservoir. See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Air Cleaner/Filter 0341. 4. Engine Oil Dipstick. See
Engine Oil
0 336.
5. Engine Cooling Fan (Out of View). See Cooling System 0343.
6. Engine Oil Fill Cap. See Engine Oil
0 336. 7. Remote Positive (+) Battery
Terminal. See Jump Starting - North
America 0394.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid 0352.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
336 VEHICLE CARE
9. Remote Negative (-) BatteryTerminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.
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 0338.
.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 Overview 0331 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.
Follow these guidelines:
.To get an accurate reading, park the
vehicle on level ground. Check the
engine oil level after the engine has
been off for at least two hours.
Checking the engine oil level on
steep grades or too soon after
engine shutoff can result in
incorrect readings. Accuracy improves when checking a cold
engine prior to starting. Remove the
dipstick and check the level.
.If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is warm,
or at least 30 minutes if the engine
is not warm. Pull out the dipstick,
wipe it with a clean paper towel or
cloth, then push it back in all the
way. Remove it again, keeping the
tip down, and check the level.
When to Add Engine Oil
2.0L L4 Turbo (LSY) Engine
3.0L V6 Twin Turbo (LGY) and 6.2L V8
(LT4) Engines

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 337
If the oil is below the cross-hatched
area at the tip of the dipstick and the
engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See“Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use.
For engine oil crankcase capacity, see
Capacities and Specifications 0426.
Caution
Do not add too much oil. Oil levels
above or below the acceptable
operating range shown on the
dipstick are harmful to the engine.
If the oil level is above the
operating range (i.e., the engine has
so much oil that the oil level gets
above the cross-hatched area that
shows the proper operating range),
the engine could be damaged. Drain
the excess oil or limit driving of the
vehicle, and seek a service
professional to remove the
excess oil. See
Engine Compartment Overview
0 331 for the location of the engine oil
fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0420.
Specification
Use full synthetic engine oils that
meet the dexos1 specification. Engine
oils that have been approved by GM
as meeting the dexos1 specification
are marked with the dexos1
approved logo.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
For the 2.0L L4 Turbo (LSY) engine,
use SAE 0W-20 viscosity grade
engine oil.
For the 3.0L V6 Twin Turbo (LGY)
engine, use SAE 5W-30 viscosity grade
engine oil. Cold Temperature
Operation: In an area of extreme cold,
where the temperature falls below
−29 °C (−20 °F), an SAE 0W-30 oil may
be used. An oil of this viscosity grade
will provide easier cold starting for the
engine at extremely low temperatures.
For the 6.2L V8 (LT4) engine, use SAE
0W-40 viscosity grade engine oil. GM
recommends Mobil 1 engine oil that
shows the dexos2 approved logo.
When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“Specification ”earlier in this section.