2023 CADILLAC XT6 maintenance schedule

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 375
How to Reset the Engine
Air Filter Life System
To reset:1. Place the vehicle in P (Park).
2. Display the Air Filter Life on the DIC. See Driver
Information Center (DIC)
0144.
3. Press the thumbwheel on the steering wheel to move
to the Reset/Disable
display area. Select Reset
then press the
thumbwheel for several
seconds.
4. Press the thumbwheel to confirm the reset.
Engine Air Cleaner/
Filter
The engine air cleaner/filter is
in the engine compartment on
the passenger side of the
vehicle. See Engine
Compartment Overview 0367.
When to Inspect/Replace
the Engine Air Cleaner/
Filter
If the vehicle is not equipped
with the engine air filter life
system, see Maintenance
Schedule 0454.
How to Inspect/Replace
the Engine Air Cleaner/
Filter
Do not start the engine or
have the engine running with
the engine air cleaner/filter
housing open. Before
removing the engine air
cleaner/filter, make sure that
the engine air cleaner/filter
housing and nearby
components are free of dirt
and debris. Remove the engine
air cleaner/filter. Do not clean
the engine air cleaner/filter or
components with water or
compressed air. To inspect or replace the
engine air cleaner/filter:
2.0L L4 Engine Shown, 3.6L
V6 Engine Similar
1. Remove the five screws on top of the engine air
cleaner/filter housing.
2. Lift the air cleaner/filter cover housing away from
the engine.
3. Pull out the filter.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 377
3.6L V6 Engine
1. Electric Engine CoolingFan (Out of View)
2. Coolant Surge Tank and Pressure Cap
{Warning
An underhood electric fan
can start up even when the
engine is not running and
can cause injury. Keep
hands, clothing, and tools
away from any underhood
electric fan.
{Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The engine cooling system in
the vehicle are filled with
DEX-COOL engine coolant
mixture. This coolant needs to
be checked and changed at
appropriate levels. See
Recommended Fluids and
Lubricants 0458 and
Maintenance Schedule 0454.
The following explains the
cooling systems and how to
check and add coolant when it
is low. If there is a problem
with engine overheating, see
Engine Overheating 0381.
What to Use
{Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Use a 50/50 mixture of clean,
drinkable water and
DEX-COOL coolant. This
mixture:
.Gives freezing protection
down to −37 °C (−34 °F),
outside temperature.
.Gives boiling protection up
to 129 °C (265 °F), engine
temperature.
.Protects against rust and
corrosion.
.Will not damage aluminum
parts.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
384 Vehicle Care
Brake Fluid
The brake master cylinder
reservoir is filled with GM
approved DOT 4 brake fluid as
indicated on the reservoir cap.
See Engine Compartment
Overview0367 for the
location of the reservoir.
Checking Brake Fluid
With the vehicle in P (Park) on
a level surface, the brake fluid
level should be between the
minimum and maximum marks
on the brake fluid reservoir.
There are only two reasons
why the brake fluid level in the
reservoir may go down:
.Normal brake lining wear.
When new linings are
installed, the fluid level goes
back up.
.A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will
not work well.
Always clean the brake fluid
reservoir cap and the area
around the cap before
removing it.
Do not top off the brake fluid.
Adding fluid does not correct a
leak. If fluid is added when the
linings are worn, there will be
too much fluid when new
brake linings are installed. Add
or remove fluid, as necessary,
only when work is done on the
brake hydraulic system.
{Warning
If too much brake fluid is
added, it can spill on the
engine and burn, if the
engine is hot enough. You or
others could be burned, and
the vehicle could be (Continued)
Warning (Continued)
damaged. Add brake fluid
only when work is done on
the brake hydraulic system.
When the brake fluid falls to a
low level, the brake warning
light comes on. See Brake
System Warning Light 0136.
Brake fluid absorbs water over
time which degrades the
effectiveness of the brake
fluid. Replace brake fluid at the
specified intervals to prevent
increased stopping distance.
See Maintenance Schedule
0 454.
What to Add
Use only GM approved DOT 4
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0458.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 389
Warning (Continued)
trunk/liftgate, do not
operate. Have the vehicle
serviced.
Caution
Do not apply tape or hang
any objects from gas struts.
Also do not push down or
pull on gas struts. This may
cause damage to the
vehicle.
See Maintenance Schedule
0 454.
Hood
Trunk
Liftgate
Headlamp Aiming
Front Headlamp
Aiming
Headlamp aim has been preset
and should need no further
adjustment.
If the vehicle is damaged in a
crash, the headlamp aim may
be affected. If adjustment to
the headlamps is necessary,
see your dealer.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 417
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show
cord or fabric.
.The tire has a bump,
bulge, or split.
.The tire has a puncture,
cut, or other damage that
cannot be repaired well
because of the size or
location of the damage.
Tire Rotation
Tires should be rotated
according to the interval
specified in the
Maintenance Schedule. See
Maintenance Schedule
0454.
Tires are rotated to
achieve a more uniform
wear for all tires. The first
rotation is the most
important. Anytime unusual wear is
noticed, rotate the tires as
soon as possible, check for
proper tire inflation
pressure, and check for
damaged tires or wheels.
If the unusual wear
continues after the
rotation, check the wheel
alignment. See When It Is
Time for New Tires
0418
and Wheel Replacement
0 423.
Use this rotation pattern
when rotating the tires. Do not include the compact
spare tire in the tire
rotation.
Adjust the front and rear
tires to the recommended
inflation pressure on the
Tire and Loading
Information label after the
tires have been rotated.
See Tire Pressure
0408
and Vehicle Load Limits
0 252.
Reset the Tire Pressure
Monitor System. See Tire
Pressure Monitor
Operation 0412.
Check that all wheel nuts
are properly tightened.
See “Wheel Nut Torque”
under Capacities and
Specifications 0463, and
“Removing the Flat Tire and
Installing the Spare Tire”
under Tire Changing 0426.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
452 Service and Maintenance
Service and
Maintenance
General Information
General Information . . . . . . 452
Maintenance Schedule
MaintenanceSchedule . . . . . . . . . . . . . . . . . . . 454
Multi-Point Vehicle
Inspection (MPVI)
Multi-Point VehicleInspection (MPVI) . . . . . . . . 456
Special Application
Services
Special ApplicationServices . . . . . . . . . . . . . . . . . . . . 457
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . 458
Maintenance Replacement Parts . . . . . . 459
Maintenance Records
Maintenance Records . . . . 461
General
Information
Your vehicle is an important
investment. This section
describes the required
maintenance for the vehicle.
Follow this schedule to help
protect against major repair
expenses resulting from
neglect or inadequate
maintenance. It may also help
to maintain the value of the
vehicle if it is sold. It is the
responsibility of the owner to
have all required maintenance
performed.
Your dealer has trained
technicians who can perform
required maintenance using
genuine replacement parts.
They have up-to-date tools
and equipment for fast and
accurate diagnostics. Many
dealers have extended
evening and Saturday hours,
courtesy transportation, and
online scheduling to assist
with service needs. Your dealer recognizes the
importance of providing
competitively priced
maintenance and repair
services. With trained
technicians, the dealer is the
place for routine maintenance
such as oil changes and tire
rotations and additional
maintenance items like tires,
brakes, batteries, and wiper
blades.
Caution
Damage caused by improper
maintenance can lead to
costly repairs and may not
be covered by the vehicle
warranty. Maintenance
intervals, checks,
inspections, recommended
fluids, and lubricants are
important to keep the
vehicle in good working
condition.
Do not have chemical
flushes that are not
approved by GM performed
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Service and Maintenance 453
Caution (Continued)
on the vehicle. The use of
flushes, solvents, cleaners,
or lubricants that are not
approved by GM could
damage the vehicle,
requiring expensive repairs
that are not covered by the
vehicle warranty.
The Tire Rotation and
Required Services are the
responsibility of the vehicle
owner. It is recommended to
have your dealer perform
these services every
12 000 km/7,500 mi. Proper
vehicle maintenance helps to
keep the vehicle in good
working condition, improves
fuel economy, and reduces
vehicle emissions.
Because of the way people
use vehicles, maintenance
needs vary. There may need to
be more frequent checks and
services. The Additional
Required Services - Normal
are for vehicles that:
.Carry passengers and cargo
within recommended limits
on the Tire and Loading
Information label. See
Vehicle Load Limits 0252.
.Are driven on reasonable
road surfaces within legal
driving limits.
.Use the recommended fuel.
See Recommended Fuel
(2.0L L4 Turbo Engine)
0343 or Recommended Fuel
(3.6L V6 Engine) 0343.
Refer to the information in the
Maintenance Schedule
Additional Required Services -
Normal Service.
The Additional Required
Services - Severe are for
vehicles that are:
.Mainly driven in heavy city
traffic in hot weather.
.Mainly driven in hilly or
mountainous terrain.
.Frequently towing a trailer.
.Used for high speed or
competitive driving.
.Used for taxi, police,
or delivery service.
Refer to the information in the
Maintenance Schedule
Additional Required Services -
Severe Service.
{Warning
Performing maintenance
work can be dangerous and
can cause serious injury.
Perform maintenance work
only if the required
information, proper tools,
and equipment are available.
If they are not, see your
dealer to have a trained
technician do the work. See
Doing Your Own Service
Work 0364.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
454 Service and Maintenance
Maintenance
Schedule
Tire Rotation and
Required Services Every
12 000 km (7,500 mi)
Tires are rotated to achieve a
more uniform wear for all tires.
The first rotation is the most
important.
Anytime unusual wear is
noticed, rotate the tires as
soon as possible, check for
proper tire inflation pressure,
and check for damaged tires
or wheels. If the unusual wear
continues after the rotation,
check the wheel alignment.
See When It Is Time for New
Tires0418 and Wheel
Replacement 0423.
.Perform Multi-Point Vehicle
Inspection. See Multi-Point
Vehicle Inspection (MPVI)
0456.
.Lubricate body components.
See Exterior Care 0440.
Additional Required
Services —Normal
Service
Every 12 000 km (7,500 mi)
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter,
and reset oil life system. Or
when the CHANGE ENGINE
OIL SOON message displays,
have the engine oil and filter
changed within the next
1 000 km (600 mi). If driven
under the best conditions,
the engine oil life system
may not indicate the need
for vehicle service for up to
a year. The engine oil and
filter must be changed at
least once a year and the oil
life system must be reset.
Your trained dealer
technician can perform this
work. If the engine oil life
system is reset accidentally,
service the vehicle within
5 000 km (3,000 mi) since
the last service. Reset the oil life system when the oil is
changed. See Engine Oil Life
System
0373.
.When the REPLACE AT
NEXT OIL CHANGE
message displays, the engine
air filter should be replaced
at the next engine oil
change. When the REPLACE
ENGINE AIR FILTER SOON
message displays, the engine
air filter should be replaced
at the earliest convenience.
Reset the engine air filter life
system after the engine air
filter is replaced. See Engine
Air Filter Life System 0374.
Every 36 000 km (22,500 mi)
.Passenger compartment air
filter replacement (or every
24 months, whichever
occurs first). More frequent
replacement may be needed
if the vehicle is driven in
areas with heavy traffic,
poor air quality, areas with
high dust levels or are
sensitive to environmental
allergens. Filter replacement