
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
428 Vehicle Care
2. Turn the wheel wrenchcounterclockwise to loosen
all the wheel nuts, but do
not remove them yet.
3. Place the jack near the tire being changed.
Caution
Make sure that the jack lift
head is in the correct
position or you may damage
your vehicle. The repairs
would not be covered by
your warranty.
4. Position the jack lift headat the jack location nearest
the tire being changed.
The jacking location is
indicated by a half circle
notch in the metal flange.
The jack must not be used
in any other position.
{Warning
Getting under a vehicle
when it is lifted on a jack is
dangerous. If the vehicle
slips off the jack, you could
be badly injured or killed.
(Continued)
Warning (Continued)
Never get under a vehicle
when it is supported only by
a jack.
{Warning
Raising the vehicle with the
jack improperly positioned
can damage the vehicle and
even make the vehicle fall.
To help avoid personal injury
and vehicle damage, be sure
to fit the jack lift head into
the proper location before
raising the vehicle.
{Warning
Lifting a vehicle and getting
under it to do maintenance
or repairs is dangerous
without the appropriate
safety equipment and
training. If a jack is provided
with the vehicle, it is(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 429
Warning (Continued)
designed only for changing a
flat tire. If it is used for
anything else, you or others
could be badly injured or
killed if the vehicle slips off
the jack. If a jack is provided
with the vehicle, only use it
for changing a flat tire.
Caution
Using a jack to raise the
vehicle without positioning it
correctly could damage your
vehicle. When raising your
vehicle on a jack, be sure to
position it correctly under
the frame and avoid contact
with the plastic molding.5. Turn the wheel wrenchclockwise to raise the jack
lift head until the slots in
the jack head fit into the
metal flange behind the cut
out on the plastic molding.
Do not raise the
vehicle yet.
6. Put the compact spare tire near you.
7. Raise the vehicle by turning the jack handle
clockwise. Raise the
vehicle far enough off the
ground so there is enough
room for the road tire to
clear the ground.8. Remove all of thewheel nuts.
9. Remove the tire.
{Warning
Rust or dirt on a wheel,
or on the parts to which it
is fastened, can cause
wheel nuts to become
loose over time. The
wheel could come off and
cause a crash. When
changing a wheel, remove
any rust or dirt from
places where the wheel
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
430 Vehicle Care
Warning (Continued)
attaches to the vehicle. In
an emergency, a cloth or
paper towel can be used;
however, use a scraper
or wire brush later to
remove all rust or dirt.
10. Remove any rust or dirtfrom the wheel bolts,
mounting surfaces, and
spare wheel.
11. Place the spare tire on the wheel-mounting surface.
{Warning
Never use oil or grease on
bolts or nuts because the
nuts might come loose. The
vehicle's wheel could fall off,
causing a crash.
12. Reinstall the wheel nuts. Tighten each nut by hand
until the wheel is held
against the hub.
13. Lower the vehicle by turning the jack handle
counterclockwise.
{Warning
Wheel nuts that are
improperly or incorrectly
tightened can cause the
wheels to become loose or
come off. The wheel nuts
should be tightened with a
torque wrench to the proper
torque specification after
replacing. Follow the torque
specification supplied by the
(Continued)
Warning (Continued)
aftermarket manufacturer
when using accessory
locking wheel nuts. See
Capacities and
Specifications0463 for
original equipment wheel nut
torque specifications.
Caution
Improperly tightened wheel
nuts can lead to brake
pulsation and rotor damage.
To avoid expensive brake
repairs, evenly tighten the
wheel nuts in the proper
sequence and to the proper
torque specification. See
Capacities and
Specifications 0463 for the
wheel nut torque
specification.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
440 Vehicle Care
Driving onto a Dolly1. Start the vehicle and drive onto the dolly.
2. Place the vehicle in P (Park).
3. Turn off the vehicle.
4. Open the hood.
5. Exit the vehicle and secure the vehicle onto the dolly.
6. Disconnect the negative (–) terminal connector from
the 12-volt battery.
7. Close the hood of the vehicle.
Removing the Vehicle from a
Dolly 1. Make sure the vehicle is secured to the dolly.
2. Open the door and open the hood of the vehicle.
3. Connect the negative (–) terminal connector from
the 12-volt battery.
4. Unsecure the vehicle and remove it from the dolly.Towing the Vehicle from
the RearCaution
Towing the vehicle from the
rear could damage it. Also,
repairs would not be
covered by the vehicle
warranty. Never have the
vehicle towed from the rear.
Do not tow the vehicle from
the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the
factory. Use a de-icing agent
only when absolutely
necessary, and have the locks
greased after using. See
Recommended Fluids and
Lubricants 0458.
Washing the Vehicle
To preserve the vehicle's
finish, wash it often and out of
direct sunlight.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 445
Caution
To avoid surface damage on
wheels and wheel trim, do
not use strong soaps,
chemicals, abrasive polishes,
cleaners, or brushes. Use
only GM approved cleaners.
Do not drive the vehicle
through an automatic car
wash that uses silicon
carbide tire/wheel cleaning
brushes. Damage could
occur and the repairs would
not be covered by the
vehicle warranty.
Brake System
Visually inspect brake lines
and hoses for proper hook-up,
binding, leaks, cracks, chafing,
etc. Inspect disc brake pads
for wear and rotors for
surface condition. Inspect all
other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged,
loose, or missing parts or signs
of wear at least once a year.
Inspect power steering for
proper electrical connections,
binding, cracks, chafing, etc.
Visually check constant
velocity joint boots and axle
seals for leaks.
Body Component
Lubrication
Lubricate all key lock cylinders,
door hinges, hood hinges,
liftgate hinges, and the steel
fuel door hinges, unless the
components are plastic.
Applying silicone grease on
weatherstrips with a clean
cloth will make them last
longer, seal better, and not
stick or squeak.
Underbody Maintenance
At least twice a year, spring
and fall, use plain water to
flush any corrosive materials
from the underbody. Take care
to thoroughly clean any areas
where mud and other debris
can collect.
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 fluid.
Contaminated fluid will
decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the
body repair shop applies
anti-corrosion material to
parts repaired or replaced to
restore corrosion protection.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
450 Vehicle Care
{Warning
Do not bleach or dye seat
belt webbing. It may severely
weaken the webbing. In a
crash, they might not be
able to provide adequate
protection. Clean and rinse
seat belt webbing only with
mild soap and lukewarm
water. Allow the webbing
to dry.
Floor Mats
{Warning
If a floor mat is the wrong
size or is not properly
installed, it can interfere
with the pedals. Interference
with the pedals can cause
unintended acceleration
and/or increased stopping
distance which can cause a
crash and injury. Make sure
the floor mat does not
interfere with the pedals.Use the following guidelines
for proper floor mat use:
.The original equipment floor
mats are designed for your
vehicle. If the floor mats
need to be replaced, it is
recommended that
GM-certified floor mats are
purchased. Non-GM floor
mats may not fit properly
and may interfere with the
pedals. Always check that
the floor mats do not
interfere with the pedals.
.Do not use a floor mat if the
vehicle is not equipped with
a floor mat retainer on the
driver side floor.
.Use the floor mat with the
correct side up. Do not turn
it over.
.Do not place anything on top
of the driver side floor mat.
.Use only a single floor mat
on the driver side.
.Do not place one floor mat
on top of another.
Removing and Replacing
the Floor Mats
The driver side floor mat is
held in place by two
button-type retainers.
1. Pull up on the rear of the
driver side floor mat to
unlock each retainer and
remove.
2. Reinstall by lining up the floor mat retainer openings
over the carpet retainers
and snapping into position.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Service and Maintenance 457
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 0440.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
458 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-VI Automatic Transmission Fluid. Chassis Lubrication Lubricant meeting requirements of NLGI #2, Category LB or GC-LB. See your dealer.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Cooling System 0376.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 full synthetic is recommended.
See Engine Oil0370.
Fuel Additive Fuel System Treatment PLUS or equivalent.
Hood and Door Hinges, Key Lock Cylinders Multi-Purpose Lubricant. See your dealer.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Power Liftgate Actuator Ball Joint, Hood Latch Assembly,
Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubricant meeting requirements of NLGI #2, Category LB or
GC-LB. See your dealer.