2022 CADILLAC XT6 engine

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
DRIVING AND OPERATING 311
VehicleMaximum Trailer
Weight *GCWRMaximum Tongue
Weight
2.0L Engine 454 kg (1,000 lb) 2 722 kg (6,001 lb) 45.4 kg (100 lb)
3.6L Engine without Trailer Package 454 kg (1,000 lb) 2 722 kg (6,001 lb) 45.4 kg (100 lb)
3.6L Engine with Trailer Package 1 814 kg (4,000 lb) 4 125 kg (9,094 lb) 181 kg (400 lb)
*The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer
including any passengers, cargo, equipment, and conversions. The GCWR for the vehicle should not be exceeded.
Maximum Trailer Tongue Weight
Rating
The Maximum Trailer Tongue Weight
Rating is the allowable trailer tongue
weight that the vehicle can support
using a conventional trailer hitch.
It may be necessary to reduce the
overall trailer weight to stay within
the maximum trailer tongue weight
rating while still maintaining the
correct trailer load balance.
The trailer tongue weight contributes
to the Gross Vehicle Weight (GVW).
GVW includes the curb weight of your
vehicle, any passengers, cargo,
equipment, and the trailer tongue
weight. Vehicle options, passengers, cargo, and equipment reduce the
maximum allowable tongue weight
the vehicle can carry, which also
reduces the maximum allowable
trailer weight.
Trailer Load Balance
The correct trailer load balance must
be maintained to ensure trailer
stability. Incorrect load balance is a
leading cause of trailer sway.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
DRIVING AND OPERATING 315
controller as part of the trailer wiring
package. The harness contains the
following circuits:Electric Trailer
Brakes Blue
Battery Feed Red/Black or
Red/Blue
Brake Apply
Signal White/Blue
Ground Black or White
Refer to the aftermarket electric trailer
brake controller owner's manual to
determine wire color coding of the
electric trailer brake controller. The
wire colors on the brake controller
may be different from the vehicle.
It may be necessary to have a
technician connect the 12-volt power
to the engine compartment fuse block.
The electric trailer brake controller
should be installed by your dealer or a
qualified service center.
Trailer Lamps
Always check that all trailer lamps are
working at the beginning of each trip,
and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals should illuminate to
indicate the vehicle is turning,
changing lanes, or stopping. When
towing a trailer, the arrows on the
instrument cluster will illuminate
even if the trailer is not properly
connected or the bulbs are
burned out.
Trailer Sway Control (TSC)
Vehicles with StabiliTrak/Electronic
Stability Control (ESC) have a Trailer
Sway Control (TSC) feature. Trailer
sway is unintended side-to-side
motion of a trailer while towing. If the
vehicle is towing a trailer and the TSC
detects that sway is increasing, the
vehicle brakes are selectively applied
to help reduce excessive trailer sway.
If equipped with the Integrated Trailer
Brake Control (ITBC) system, and the
trailer has an electric brake system,
StabiliTrak/ESC may also apply the
trailer brakes.
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning
light will flash on the instrument
cluster. Reduce vehicle speed by
gradually removing your foot from the
accelerator pedal. If trailer sway
continues, StabiliTrak/ESC can reduce
engine torque to help slow the vehicle.
TSC will not function if StabiliTrak/
ESC is turned off. See Traction Control/
Electronic Stability Control 0247.
{Warning
Trailer sway can result in a crash
and in serious injury or death, even
if the vehicle is equipped with TSC.
If the trailer begins to sway, reduce
vehicle speed by gradually removing
your foot from the accelerator. Then
pull over to check the trailer and
vehicle to help correct possible
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
316 DRIVING AND OPERATING
Warning (Continued)
causes, including an improperly or
overloaded trailer, unrestrained
cargo, improper trailer hitch
configuration, or improperly
inflated or incorrect vehicle or
trailer tires. SeeTowing Equipment
0 312 for trailer ratings and hitch
setup recommendations.
Trailer Tires
Special Trailer (ST) tires differ from
vehicle tires. Trailer tires are designed
with stiff sidewalls to help prevent
sway and to support heavy loads.
These features can make it difficult to
determine if the trailer tire pressures
are low only based on a visual
inspection.
Always check all trailer tire pressures
before each trip when the tires are
cool. Low trailer tire pressure is a
leading cause of trailer tire blowouts.
Trailer tires deteriorate over time. The
trailer tire sidewall will show the week
and year the tire was manufactured. Many trailer tire manufacturers
recommend replacing tires more than
six years old.
Overloading is another leading cause
of trailer tire blowouts. Never load the
trailer with more weight than the tires
are designed to support. The load
rating is on the trailer tire sidewall.
Always know the maximum speed
rating for the trailer tires before
driving. This may be significantly
lower than the vehicle tire speed
rating. The speed rating may be on
the trailer tire sidewall. If the speed
rating is not shown, the default trailer
tire speed rating is 105 km/h (65 mph).
Conversions and
Add-Ons
Add-On Electrical
Equipment
{Warning
The Data Link Connector (DLC) is
used for vehicle service and
Emission Inspection/Maintenance
testing. See
Malfunction Indicator
Lamp (Check Engine Light) 0115.
A device connected to the DLC —
such as an aftermarket fleet or
driver-behavior tracking device —
may interfere with vehicle systems.
This could affect vehicle operation
and cause a crash. Such devices
may also access information stored
in the vehicle’s systems.
Caution
Some electrical equipment can
damage the vehicle or cause
components to not work and would (Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
318 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 319
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 319
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 319
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 319
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 322
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Oil Life System . . . . . . . . . . . 327
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Engine Air Filter Life System . . . . 328
Engine Air Cleaner/Filter . . . . . . . . . 329
Cooling System . . . . . . . . . . . . . . . . . . . 330
Engine Overheating . . . . . . . . . . . . . . 334
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 335
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 336
Battery - North America . . . . . . . . . 337
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . 338
Wiper Blade Replacement . . . . . . . 338 Windshield Replacement . . . . . . . . 340
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 340
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 341
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 341
Electrical System
Electrical System Overload . . . . . . 341
Fuses and Circuit Breakers . . . . . . 343
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Instrument Panel Fuse Block . . . . 347
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
All-Season Tires . . . . . . . . . . . . . . . . . . 352
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 352
Tire Sidewall Labeling . . . . . . . . . . . 353
Tire Designations . . . . . . . . . . . . . . . . . 354
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 355
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 358
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 359
Tire Pressure Monitor System . . . 360
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 361 Tire Inspection . . . . . . . . . . . . . . . . . . . 364
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 365
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Buying New Tires . . . . . . . . . . . . . . . . 367
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Uniform Tire Quality Grading . . . 368
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Wheel Replacement . . . . . . . . . . . . . . 370
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 370
If a Tire Goes Flat . . . . . . . . . . . . . . . . 371
Tire Changing . . . . . . . . . . . . . . . . . . . . . 372
Compact Spare Tire . . . . . . . . . . . . . . 378
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 379
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 381
Recreational Vehicle Towing . . . . 382
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 384
Interior Care . . . . . . . . . . . . . . . . . . . . . . 389
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 392

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
320 VEHICLE CARE
If doing some of your own service
work, use the proper service manual.
It tells you much more about how to
service the vehicle than this manual
can. To order the proper service
manual, seePublication Ordering
Information 0421.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 071.
If equipped with remote vehicle start,
open the hood before performing any
service work to prevent remote
starting the vehicle accidentally. See
Remote Vehicle Start 015.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0407.
Caution
Even small amounts of
contamination can cause damage to
vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/
start, turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others could
be injured.
{Warning
Components under the hood can
get hot from running the engine. To
help avoid the risk of burning
unprotected skin, never touch these
components until they have cooled,
and always use a glove or towel to
avoid direct skin contact.
Clear any snow from the hood before
opening. To open the hood:1. Pull the hood release lever with the
isymbol. It is on the lower left
side of the instrument panel.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
322 VEHICLE CARE
Engine Compartment Overview
2.0L L4 Engine

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
VEHICLE CARE 323
1.Engine Air Cleaner/Filter 0329.
2. Engine Oil Fill Cap. See Engine Oil
0 325.
3. Engine Oil Dipstick. See Engine Oil
0 325.
4. Engine Cooling Fan (Out of View). See Cooling System 0330.
5. Brake Fluid Reservoir. See Brake
Fluid 0336.
6. Battery - North America 0337.
7. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 330.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting -
North America 0379.
9. Windshield Washer Fluid Reservoir. See Washer Fluid 0335.
10. Engine Compartment Fuse Block
0343.
11. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0379.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
324 VEHICLE CARE
3.6L V6 Engine
1. Engine Air Cleaner/Filter 0329.
2. Engine Oil Fill Cap. See Engine Oil
0 325.
3. Engine Oil Dipstick. See Engine Oil
0 325. 4. Engine Cooling Fan (Out of View).
See Cooling System 0330.
5. Brake Fluid Reservoir. See Brake
Fluid 0336.
6. Battery - North America 0337. 7. Engine Coolant Surge Tank and
Pressure Cap. See Cooling System
0 330.
8. Positive (+) Battery Terminal (Under Cover). See Jump Starting -
North America 0379.