Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
388 Vehicle Care
Warning (Continued)
it has been driven may be
unknown. It could fail
suddenly and cause a crash.
When replacing wheels, use
a new GM original
equipment wheel.
Caution
The wrong wheel can also
cause problems with bearing
life, brake cooling,
speedometer or odometer
calibration, headlamp aim,
bumper height, vehicle
ground clearance, and tire or
tire chain clearance to the
body and chassis.
Tire Chains
{Warning
If the vehicle has 235/60R18
or 245/45R20 size tires, do
not use tire chains. There is(Continued)
Warning (Continued)
not enough clearance. Tire
chains used on a vehicle
without the proper amount
of clearance can cause
damage to the brakes,
suspension, or other vehicle
parts. The area damaged by
the tire chains could cause
loss of control and a crash.
Use another type of traction
device only if its
manufacturer recommends
it for the vehicle's tire size
combination and road
conditions. Follow that
manufacturer's instructions.
To avoid vehicle damage,
drive slow and readjust or
remove the traction device if
it contacts the vehicle. Do
not spin the wheels. If
traction devices are used,
install them on the front
tires.
Caution
If the vehicle is equipped
with a tire size other than
235/60R18 or 245/45R20,
use tire chains only where
legal and only when
necessary. Use low profile
chains that add no more
than 12 mm thickness to the
tire tread and inner sidewall.
Use chains that are the
proper size for the tires.
Install them on the tires of
the front axle. Do not use
chains on the tires of the
rear axle. Tighten them as
tightly as possible with the
ends securely fastened.
Drive slowly and follow the
chain manufacturer's
instructions. If the chains
contact the vehicle, stop and
retighten them. If the
contact continues, slow
down until it stops. Driving(Continued)
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 389
Caution (Continued)
too fast or spinning the
wheels with chains on will
damage the vehicle.
If a Tire Goes Flat
It is unusual for a tire to blow
out while driving, especially if
the tires are maintained
properly. See Tires0364. If air
goes out of a tire, it is much
more likely to leak out slowly.
But if there is ever a blowout,
here are a few tips about what
to expect and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the
vehicle toward that side. Take
your foot off the accelerator
pedal and grip the steering
wheel firmly. Steer to maintain
lane position, and then gently
brake to a stop, well off the
road, if possible.
A rear blowout, particularly on
a curve, acts much like a skid
and may require the same
correction as used in a skid. Stop pressing the accelerator
pedal and steer to straighten
the vehicle. It may be very
bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.{Warning
Driving on a flat tire will
cause permanent damage to
the tire. Re-inflating a tire
after it has been driven on
while severely underinflated
or flat may cause a blowout
and a serious crash. Never
attempt to re-inflate a tire
that has been driven on
while severely underinflated
or flat. Have your 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 0152.
If your vehicle is loaded at or
near maximum cargo capacity,
it may be difficult to fit the jack
under the vehicle due to the
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
390 Vehicle Care
environment (shoulder slope,
road debris, etc.). Removal of
some weight may improve the
ability to fit the jack under the
vehicle at the correct jacking
location.
{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.
(Continued)
Warning (Continued)
5. Place wheel blocks,if equipped, on both sides
of the tire at the
opposite corner of the
tire being changed.
This vehicle may come with a
jack and spare tire or a tire
sealant and compressor kit. To
use the jacking equipment to
change a spare tire safely,
follow the instructions below.
Then see Tire Changing 0398.
To use the tire sealant and
compressor kit, see Tire
Sealant and Compressor Kit
0 390.
When the vehicle has a flat
tire (2), use the following
example as a guide to assist
you in the placement of 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 Sealant and
Compressor Kit
{Warning
Idling a vehicle in an
enclosed area with poor
ventilation is dangerous.
Engine exhaust may enter
the vehicle. Engine exhaust
contains carbon monoxide
(CO) which cannot be seen
or smelled. It can cause (Continued)
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 391
Warning (Continued)
unconsciousness and even
death. Never run the engine
in an enclosed area that has
no fresh air ventilation. For
more information, see
Engine Exhaust0256.
{Warning
Overinflating a tire could
cause the tire to rupture
and you or others could be
injured. Be sure to read and
follow the tire sealant and
compressor kit instructions
and inflate the tire to its
recommended pressure. Do
not exceed the
recommended pressure.
{Warning
Storing the tire sealant and
compressor kit or other
equipment in the passenger
(Continued)
Warning (Continued)
compartment of the vehicle
could cause injury. In a
sudden stop or collision,
loose equipment could strike
someone. Store the tire
sealant and compressor kit
in its original location.
If this vehicle has a tire sealant
and compressor kit, there may
not be a spare tire or tire
changing equipment, and on
some vehicles there may not
be a place to store a tire.
The tire sealant and
compressor can be used to
temporarily seal punctures up
to 6 mm (0.25 in) in the tread
area of the tire. It can also be
used to inflate an
underinflated tire.
If the tire has been separated
from the wheel, has damaged
sidewalls, or has a large
puncture, the tire is too
severely damaged for the tire sealant and compressor kit to
be effective. See Roadside
Assistance Program
0439.
Read and follow all of the tire
sealant and compressor kit
instructions.
The kit includes:
1. Sealant Canister Inlet Valve
2. Sealant/Air Hose
3. Base of Sealant Canister
4. Tire Sealant Canister
5. On/Off Button
6. Slot on Top of Compressor
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
392 Vehicle Care
7. Pressure Deflation Button
8. Pressure Gauge
9. Power Plug
10.Air Only Hose
Tire Sealant
Read and follow the safe
handling instructions on the
label adhered to the tire
sealant canister (4).
Check the tire sealant
expiration date on the tire
sealant canister. The tire
sealant canister (4) should be
replaced before its expiration date. Replacement tire sealant
canisters are available at your
local dealer.
There is only enough sealant
to seal one tire. After usage,
the tire sealant canister must
be replaced.
Using the Tire Sealant and
Compressor Kit to
Temporarily Seal and
Inflate a Punctured Tire
When using the tire sealant
and compressor kit during cold
temperatures, warm the kit in
a heated environment for
five minutes. This will help to
inflate the tire faster.
If a tire goes flat, avoid further
tire and wheel damage by
driving slowly to a level place.
Turn on the hazard warning
flashers. See Hazard Warning
Flashers
0152.
See If a Tire Goes Flat 0389
for other important safety
warnings. Do not remove any objects
that have penetrated the tire.
1. Remove the tire sealant canister (4) and
compressor from its
storage location. See
Storing the Tire Sealant
and Compressor Kit 0398.
2. Remove the air only hose (10) and the power plug (9)
from the bottom of the
compressor.
3. Place the compressor on the ground near the
flat tire.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 395
20. If the flat tire was able toinflate to the
recommended inflation
pressure, remove the
maximum speed label from
the sealant canister and
place it in a highly visible
location.
Do not exceed the speed
on this label until the
damaged tire is repaired or
replaced.
21. Return the equipment to its original storage location
in the vehicle.
22. Immediately drive the vehicle 8 km (5 mi) to
distribute the sealant in
the tire. 23. Stop at a safe location and
check the tire pressure.
Refer to Steps 1–10 under
“Using the Tire Sealant and
Compressor Kit without
Sealant to Inflate a Tire
(Not Punctured).”
If the tire pressure has
fallen more than 68 kPa
(10 psi) below the
recommended inflation
pressure, stop driving the
vehicle. The tire is too
severely damaged and the
tire sealant cannot seal the
tire. See Roadside
Assistance Program 0439.
If the tire pressure has not
dropped more than 68 kPa
(10 psi) from the
recommended inflation
pressure, inflate the tire to
the recommended inflation
pressure. 24. Wipe off any sealant from
the wheel, tire, or vehicle.
25. Dispose of the used tire sealant canister (4) at a
local dealer or in
accordance with local
state codes and practices.
26. Replace it with a new canister available from
your dealer.
27. After temporarily sealing a tire using the tire sealant
and compressor kit, take
the vehicle to an
authorized dealer within
161 km (100 mi) of driving
to have the tire repaired or
replaced.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
396 Vehicle Care
Using the Tire Sealant and
Compressor Kit without
Sealant to Inflate a Tire
(Not Punctured)
The kit includes:
1. Sealant Canister InletValve
2. Sealant/Air Hose
3. Base of Sealant Canister
4. Tire Sealant Canister
5. On/Off Button
6. Slot on Top of Compressor
7. Pressure Deflation Button
8. Pressure Gauge
9. Power Plug
10. Air Only Hose
If a tire goes flat, avoid further
tire and wheel damage by
driving slowly to a level place.
Turn on the hazard warning
flashers. See Hazard Warning
Flashers 0152.
See If a Tire Goes Flat 0389
for other important safety
warnings.
1. Remove the compressor from its storage location.
See Storing the Tire
Sealant and Compressor
Kit 0398. 2. Remove the air only hose
(10) and the power plug (9)
from the bottom of the
compressor.
3. Place the compressor on the ground near the
flat tire.
Make sure the tire valve
stem is positioned close to
the ground so the hose will
reach it.
4. Remove the valve stem cap from the flat tire by
turning it
counterclockwise.
5. Attach the air only hose (10) to the tire valve stem
by turning it clockwise until
tight.
6. Plug the power plug (9) into the accessory power
outlet in the vehicle.
Unplug all items from other
accessory power outlets.
See Power Outlets 0115.
If the vehicle has an
accessory power outlet, do
not use the cigarette
lighter.
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 399
4. Turn the retainer nutcounterclockwise and
remove the spare tire.
Place the spare tire next
to the tire being changed.
5. The jack and tools are stored below the
spare tire.
Remove them from their
container and place them
near 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 0389.
2. For vehicles equipped with a wheel cover or center
cap, pull the cover or
center cap away from the
wheel to remove it.
Store the wheel cover in
the cargo area until the flat
tire is repaired or replaced.
If the vehicle has a center
cap with wheel nut caps,
the wheel nut caps are
designed to stay with the
center cap after they are
loosened.
Remove the entire center
cap if the wheel has a
smooth center cap. Place
the chisel end of the wheel
wrench in the slot on the
wheel, and gently pry it off.
3. Turn the wheel wrenchcounterclockwise to loosen
all the wheel nuts, but do
not remove them yet.
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 the jack location nearest
the flat tire.