2023 CADILLAC XT6 spare tire

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 421
Different Size Tires
and Wheels
If wheels or tires are installed
that are a different size than
the original equipment wheels
and tires, vehicle performance,
including its braking, ride and
handling characteristics,
stability, and resistance to
rollover may be affected. If the
vehicle has electronic systems
such as antilock brakes,
rollover airbags, traction
control, electronic stability
control, or All-Wheel Drive, the
performance of these systems
can also be affected.
{Warning
If different sized wheels are
used, there may not be an
acceptable level of
performance and safety if
tires not recommended for
those wheels are selected.
This increases the chance of
a crash and serious injury.(Continued)
Warning (Continued)
Only use GM specific wheel
and tire systems developed
for the vehicle, and have
them properly installed by a
GM certified technician.
See Buying New Tires 0419
and Accessories and
Modifications 0363.
Uniform Tire Quality
Grading
The following information
relates to the system
developed by the United
States National Highway
Traffic Safety
Administration (NHTSA),
which grades tires by
treadwear, traction, and
temperature performance.
This applies only to
vehicles sold in the United
States. The grades are
molded on the sidewalls of
most passenger car tires. The Uniform Tire Quality
Grading (UTQG) system
does not apply to deep
tread, winter tires, compact
spare tires, tires with
nominal rim diameters of
10 to 12 inches
(25 to 30 cm), or to some
limited-production tires.
While the tires available on
General Motors passenger
cars and light trucks may
vary with respect to these
grades, they must also
conform to federal safety
requirements and
additional General Motors
Tire Performance Criteria
(TPC) standards.
Quality grades can be
found where applicable on
the tire sidewall between
tread shoulder and
maximum section width.
For example:

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
426 Vehicle Care
{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 the vehicle in P (Park).
3. Turn the vehicle off and do not restart the vehicle
while it 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.
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:

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 427
1. Remove the rear tire andreplace it with 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 Liftgate 025.
2. Lift the load floor.
3. Remove the cargo management system
tray (2) by pulling on the
handles (1). See Cargo
Management System 0113.4. 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 0425.

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
Vehicle Care 431
14. Tighten the wheel nutsfirmly 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.
{Warning
Storing a jack, a tire,
or other equipment in the
passenger compartment of
the vehicle could cause
injury. In a sudden stop or
collision, loose equipment
could strike someone. Store
all these in the proper place.
Storing the Flat Tire
1. Liftgate Hinges
2. Cable
3. Center of the Wheel
4. Door Striker

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
432 Vehicle Care
To store the flat tire:
1. Remove the cable packagefrom under the spare tire,
jack, and tools.
2. Remove the small cap by tapping the back of the
cap with the extension of
the shaft, if the vehicle has
aluminum wheels.
3. Put the jack, tool container, and cargo management
system tray back in their
original location. 4. Put the flat tire in the
cargo bin with the valve
stem facing the rear of the
vehicle.
5. Pull the cable through the door striker and the center
of the wheel.
6. Open the lift gate to 3 / 4door location and adjust
the door automatically or
manually until there is
enough space to hook the
cable to the door hinges.
See Liftgate 025. 7. Hook the other end of the
cable onto the outside
portion of the liftgate
hinge on the other side of
the vehicle.
8. Pull on the cable to make sure it is secure.9. Make sure the metal tubeis centered at the striker.
Push the tube toward the
front of the vehicle.
10. Close the liftgate and make sure it is fully
latched.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 433
The compact spare is for
temporary use only. Replace
the compact spare tire with a
full-size tire as soon as
possible.
Storing the Compact
Spare Tire and Tools
To store the spare tire and
tools:1. Open the liftgate. See Liftgate 025.
2. Lift the load floor.
3. Remove the cargo management system tray.
4. Put back the spare tire and all tools as they were
stored in the rear storage
compartment.
5. Install the cargo management system tray
and load floor.
The compact spare is for
temporary use only. Replace
the compact spare tire with a
full-size tire as soon as
possible.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time
could result in loss of
braking and handling. This
could lead to a crash and
you or others could be
injured. Use only one
compact spare tire at a time.
If this vehicle has a compact
spare tire, it was fully inflated
when new; however, it can
lose air over time. Check the
inflation pressure regularly.
It should be 420 kPa (60 psi).
Stop as soon as possible and
check that the spare tire is
correctly inflated after being
installed on the vehicle. The
compact spare tire is designed
for temporary use only. The
vehicle will perform differently
with the spare tire installed
and it is recommended that
the vehicle speed be limited to
80 km/h (50 mph). To conserve the tread of the spare tire,
have the standard tire
repaired or replaced as soon
as convenient and return the
spare tire to the storage area.
When using a compact spare
tire, the AWD (if equipped),
ABS, and Traction Control
systems may engage until the
spare tire is recognized by the
vehicle, especially on slippery
roads. Adjust driving to reduce
possible wheel slip.
Caution
When the compact spare is
installed, do not take the
vehicle through an
automatic car wash with
guide rails. The compact
spare can get caught on the
rails which can damage the
tire, wheel, and other parts
of the vehicle.
Do not use the compact spare
on other vehicles.