2022 CADILLAC XT4 tire type

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
322 VEHICLE CARE
(5) Tire Inf lation:The temporary
use tire or compact spare tire
should be inflated to 420 kPa
(60 psi). For more information on
tire pressure and inflation see Tire
Pressure 0325.
(6) Tire Size
:A combination of
letters and numbers define a tire's
width, height, aspect ratio,
construction type, and service
description. The letter “T”as the
first character in the tire size
means the tire is for temporary
use only.
(7) TPC Spec (Tire Performance
Criteria Specification)
:Original
equipment tires designed to GM's
specific tire performance criteria
have a TPC specification code
molded onto the sidewall. GM's
TPC specifications meet or exceed
all federal safety guidelines.
Tire Designations
Tire Size
The example shows a typical
passenger vehicle tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter "P" as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire and
Rim Association.
(2) Tire Width
:The 3-digit
number indicates the tire section
width in millimeters from sidewall
to sidewall. (3) Aspect Ratio
:A 2-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size aspect
ratio is 75, as shown in item (3) of
the illustration, it would mean
that the tire's sidewall is
75 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire. The
letter "R" means radial ply
construction; the letter "D" means
diagonal or bias ply construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the tire.
The load index represents the load
carrying capacity a tire is certified
to carry. The speed rating is the
maximum speed a tire is certified
to carry a load.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
326 VEHICLE CARE
How to Check
Use a good quality pocket-type
gauge to check tire pressure.
Proper tire inflation cannot be
determined by looking at the tire.
Check the tire inflation pressure
when the tires are cold, meaning
the vehicle has not been driven for
at least three hours or no more
than 1.6 km (1 mi).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to get
a pressure measurement. If the
cold tire inflation pressure
matches the recommended
pressure on the Tire and Loading
Information label, no further
adjustment is necessary. If the
inflation pressure is low, add air
until the recommended pressure is
reached. If the inflation pressure
is high, press on the metal stem in
the center of the tire valve to
release air.Recheck the tire pressure with the
tire gauge.
Put the valve caps back on the
valve stems to keep out dirt and
moisture. Use only valve caps
designed for the vehicle by GM.
TPMS sensors could be damaged
and would not be covered by the
vehicle warranty.
Tire Pressure for
High-Speed Operation
{Warning
Driving at high speeds, 160 km/h
(100 mph) or higher, puts additional
strain on tires. Sustained
high-speed driving causes excessive
heat buildup and can cause sudden
tire failure. This could cause a
crash, and you or others could be
killed. Some high-speed rated tires
require inflation pressure
adjustment for high-speed
operation. When speed limits and
road conditions allow the vehicle to
(Continued)
Warning (Continued)
be driven at high speeds, make sure
the tires are rated for high-speed
operation, are in excellent
condition, and are set to the correct
cold tire inflation pressure for the
vehicle load.
Vehicles with tire sizes listed in the
High Speed Operation Inflation
Pressures table require inflation
pressure adjustment when driving the
vehicle at speeds of 160 km/h
(100 mph) or higher. Set the cold tire
inflation pressure to the
corresponding value in the table for
the tire size on the vehicle.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
334 VEHICLE CARE
month, remove the tires or raise the
vehicle to reduce the weight from the
tires.
Buying New Tires
GM has developed and matched
specific tires for the vehicle. The
original equipment tires installed
were designed to meet General
Motors Tire Performance Criteria
Specification (TPC Spec) system
rating. When replacement tires are
needed, GM strongly recommends
buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec system
considers over a dozen critical
specifications that impact the
overall performance of the vehicle,
including brake system
performance, ride and handling,
traction control, and tire pressure
monitoring performance. GM's
TPC Spec number is molded onto
the tire's sidewall near the tire
size. If the tires have an all-season
tread design, the TPC Specnumber will be followed by MS for
mud and snow. See
Tire Sidewall
Labeling 0320 for additional
information.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires
will help to maintain the
performance of the vehicle.
Braking and handling performance
may be adversely affected if all the
tires are not replaced at the same
time. If proper rotation and
maintenance have been done, all
four tires should wear out at
about the same time. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle. See
Tire Rotation 0332.
{Warning
Tires could explode during
improper service. Attempting to
mount or dismount a tire could
cause injury or death. Only your
(Continued)
Warning (Continued)
dealer or authorized tire service
center should mount or
dismount the tires.
{Warning
Mixing tires of different sizes
(other than those originally
installed on the vehicle), brands,
tread patterns, or types may
cause loss of vehicle control,
resulting in a crash or other
vehicle damage. Use the correct
size, brand, and type of tire on
all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel rim
flanges to develop cracks after
many miles of driving. A tire
and/or wheel could fail suddenly
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
338 VEHICLE CARE
Tire Chains
{Warning
If the vehicle has 235/60R18 or
245/45R20 size tires, do not use tire
chains. There is 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 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. SeeTires0318. 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
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
TECHNICAL DATA 381
Vehicle Data
Capacities and Specifications
ApplicationCapacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under thehood. See your dealer for more information.
Engine Cooling System* 9.4 L 10.0 qt
Engine Oil with Filter 5.0 L 5.3 qt
Fuel Tank
IFWD 60.2 L 15.9 gal
IAWD 61.7 L 16.3 gal
Wheel Nut Torque 190 Y140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual.
Recheck fluid level after filling.
*Engine cooling system capacity values are based on the entire cooling system and its components.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
388 CUSTOMER INFORMATION
General Motors of Canada also has a
Mobility program. See
cadillaccanada.ca, or call
1-800-GM-DRIVE (800-463-7483) for
details. TTY users call 1-800-263-3830.
Roadside Service
U.S.: 1-800-224-1400.
Canada: 1-800-882-1112.
Text Telephone (TTY) Users
(U.S. Only): 1-888-889-2438.
Service is available 24 hours a day,
365 days a year.
Calling for Service
When calling Roadside Service, have
the following information ready:
.Your name, home address, and
home telephone number
.Telephone number of your location
.Location of the vehicle
.Model, year, color, and license plate
number of the vehicle
.Odometer reading, Vehicle
Identification Number (VIN), and
delivery date of the vehicle
.Description of the problem
Coverage
Services are provided for the duration
of the vehicle’s powertrain warranty.
In the U.S., anyone driving the vehicle
is covered. In Canada, a person driving
the vehicle without permission from
the owner is not covered.
Roadside Service is not a part of the
New Vehicle Limited Warranty.
General Motors North America and
Cadillac reserve the right to make any
changes or discontinue the Roadside
Service program at any time without
notification.
General Motors North America and
Cadillac reserve the right to limit
services or payment to an owner or
driver if they decide the claims are
made too often, or the same type of
claim is made many times.
Cadillac Owner Privileges™
.Emergency Fuel Delivery: Delivery
of enough fuel for the vehicle to get
to the nearest service station.
.Lock-Out Service: Service to unlock
the vehicle if you are locked out.
A remote unlock may be available if you have OnStar. For security
reasons, the driver must present
identification before this service is
given.
.Emergency Tow from a Public
Road or Highway:
Tow to the
nearest Cadillac dealer for warranty
service, or if the vehicle was in a
crash and cannot be driven.
Assistance is not given when the
vehicle is stuck in the sand, mud,
or snow.
.Flat Tire Change: Service to change
a flat tire with a spare tire. The
spare tire, if equipped, must be in
good condition and properly
inflated. It is your responsibility for
the repair or replacement of the tire
if it is not covered by the warranty.
.Battery Jump Start: Service to
jump start a dead battery.
.Trip Interruption Benefits and
Service: If your trip is interrupted
due to a warranty failure, incidental
expenses may be reimbursed during
the Powertrain warranty period.
Items considered are hotel, meals,

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15440907) - 2022 - CRC - 12/17/21
404 CONNECTED SERVICES
Connections
The following services help with
staying connected.
For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
.Change the default passwords for
the Wi-Fi hotspot and myCadillac
mobile app. Make these passwords
different from each other and use a
combination of letters and numbers
to increase the security.
.Change the default name of the
SSID (Service Set Identifier). This is
your network’s name that is visible
to other wireless devices. Choose a
unique name and avoid family
names or vehicle descriptions.
Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in Wi-Fi
hotspot that provides access to the
Internet and web content at 4G LTE
speed. Up to seven mobile devices can
be connected. A data plan is required.
Use the in-vehicle controls only when
it is safe to do so. 1. To retrieve Wi-Fi hotspot
information, press
=to open the
OnStar app on the infotainment
display, then select Wi-Fi Hotspot.
On some vehicles, touch Wi-Fi or
Wi-Fi Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some vehicles,
the connection type (no Internet
connection, 3G, 4G, 4G LTE), and
signal quality (poor, good,
excellent). The LTE icon shows
connection to Wi-Fi. It is possible
that the icon may not illuminate
even though the vehicle has an
active connection.
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR to
connect with an Advisor. On some
vehicles, the SSID and password
can be changed in the Wi-Fi
Hotspot menu.
After initial set-up, your vehicle’s
Wi-Fi hotspot will connect
automatically to your mobile devices.
Manage data usage by turning Wi-Fi
on or off on your mobile device, by
using the myCadillac mobile app, or by contacting an OnStar Advisor.
On some vehicles, Wi-Fi can also be
managed from the Wi-Fi
Hotspot menu.
MyCadillac Mobile App (If Available)
Download the myCadillac mobile app
to compatible Apple and Android
smartphones. Cadillac users can
access the following services from a
smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/
off, manage settings, and monitor
data consumption, if equipped.
.Locate a dealer and schedule
service.
.Request Roadside Service.