
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
372 VEHICLE CARE
Warning (Continued)
dealer or an authorized tire service
center repair or replace the flat tire
as soon as possible.
{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 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.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard Warning
Flashers 0142.
{Warning
Changing a tire can be dangerous.
The vehicle can slip off the jack and
roll over or fall causing injury or
death. Find a level place to change
the tire. To help prevent the vehicle
from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission in P (Park) or a manual
transmission in 1 (First) or
R (Reverse).
3. Turn off the engine and do not restart while the vehicle is
raised.
4. Do not allow passengers to remain in the vehicle.
5. Place wheel blocks, if equipped, on both sides of the tire at the
opposite corner of the tire
being changed.
When the vehicle has a flat tire (2),
use the following example as a guide
to assist in the placement of the
wheel blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information explains
how to repair or change a tire.
Tire Changing
Performance Brake Package
RPO J56
The original spare tire/wheel will not
fit onto the front axle if equipped with
the performance brake package RPO
J56. If there is a flat tire on the front
axle, a tire/wheel from the rear axle
must be used to make the repair. The
spare tire will then replace the tire/
wheel that is removed from the
rear axle.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
VEHICLE CARE 373
If equipped with the performance
brake package RPO J56, and the flat
tire is on the front axle, stop after
performing all steps in Removing the
Spare Tire and Tools and do the
following. Otherwise, continue with
the procedure:
1. Remove the rear tire and replace itwith the spare tire by performing
all steps in Removing the Flat Tire
and Installing the Spare Tire.
2. Perform all steps in Removing the Flat Tire and Installing the Spare
Tire again this time replacing the
flat front tire with the rear tire.
3. Proceed to Storing a Flat or Spare Tire and Tools.
Removing the Spare Tire and
Tools
To access the spare tire and tools:
1. Open the liftgate. See Liftgate020.
2. Lift the load floor.
3. Remove the cargo management system tray (2) by pulling on the
handles (1). See Cargo Management
System 097.
4. Turn the wing nut (3)
counterclockwise to remove the
jack (1) and wheel wrench (2).
Place the tool container near the
tire being changed.
5. Remove the spare tire and place it next to the tire being changed.
Removing the Flat Tire and
Installing the Spare Tire
1. Do a safety check beforeproceeding. See If a Tire Goes Flat
0 371.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
374 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 head at thejack 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. 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 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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
VEHICLE CARE 375
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 wrench clockwiseto 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 the wheel 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
(Continued)
Warning (Continued)
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 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 dirt from the wheel bolts, mounting surfaces,
and spare wheel.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
376 VEHICLE CARE
11. Place the spare tire on thewheel-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 aftermarket
manufacturer when using accessory
(Continued)
Warning (Continued)
locking wheel nuts. See Capacities
and Specifications 0409 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 0409 for the wheel
nut torque specification.
14. Tighten the wheel nuts firmly in a crisscross sequence, as shown.
15. Lower the jack all the way and remove the jack from under the
vehicle.
16. Tighten the wheel nuts firmly with the wheel wrench.
Caution
Wheel covers will not fit on the
vehicle's compact spare. If you try
to put a wheel cover on the
compact spare, the cover or the
spare could be damaged.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
384 VEHICLE CARE
Removing the Vehicle from a Dolly1. 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 Rear
Caution
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
0 404.
Washing the Vehicle
To preserve the vehicle's finish, wash
it often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they
can damage the vehicle's paint,
metal, or plastic parts. If damage
occurs, it would not be covered by
the vehicle warranty. Approved
cleaning products can be obtained
from your dealer. Follow all
manufacturer directions regarding
correct product usage, necessary
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
388 VEHICLE CARE
Caution (Continued)
that have been sprayed with
magnesium chloride or calcium
chloride. These are used on roads
for conditions such as dust and ice.
Always wash the chrome with soap
and water after exposure.
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 brakepads 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.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
2022 - CRC - 10/22/21
VEHICLE CARE 393
.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 driverside 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. 3. Make sure the floor mat is properly
secured in place. Verify the floor
mat does not interfere with the
pedals.
Cleaning Rubber Floor Mats
(All-Weather Mats and Floor
Liners)
See “Vinyl/Rubber” underInterior Care
0 389 for important cleaning
information.