2023 CADILLAC XT4 height

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 79
Child Restraints
Older Children
Older children who have
outgrown booster seats
should wear the vehicle’s seat
belts. Refer to How to Wear
Seat Belts Properly058.
The manufacturer instructions
that come with the booster
seat state the weight and
height limitations for that
booster. Use a booster seat
with a lap-shoulder belt until
the child passes the fit test
below:
.Sit all the way back on the
seat. Do the knees bend at
the seat edge? If yes,
continue. If no, return to the
booster seat.
.Buckle the lap-shoulder belt.
Does the shoulder belt rest
on the shoulder? If yes,
continue. If no, try using the
rear seat belt comfort guide,
if available. See “Rear Seat
Belt Comfort Guides” under
Lap-Shoulder Belt 060. If a
comfort guide is not
available, or if the shoulder
belt still does not rest on the
shoulder, then return to the
booster seat.
.Does the lap belt fit low and
snug on the hips, touching
the thighs? If yes, continue.
If no, return to the
booster seat.
.Can proper seat belt fit be
maintained for the length of
the trip? If yes, continue.
If no, return to the
booster seat. Q: What is the proper way to
wear seat belts?
A: An older child should wear a
lap-shoulder belt and get
the additional restraint a
shoulder belt can provide.
The shoulder belt should
not cross the face or neck.
The lap belt should fit
snugly below the hips, just
touching the top of the
thighs. This applies belt
force to the child's pelvic
bones in a crash. It should
never be worn over the
abdomen, which could cause
severe or even fatal internal
injuries in a crash.
Also see “Rear Seat Belt
Comfort Guides” under
Lap-Shoulder Belt 060.
According to accident
statistics, children are safer
when properly restrained in a
rear seating position.
In a crash, children who are
not buckled up can strike
other people who are buckled
up, or can be thrown out of

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
82 Seats and Restraints
Warning (Continued)
outboard seat, always move
the front passenger seat as
far back as it will go.
Child restraints are devices
used to restrain, seat,
or position children in the
vehicle and are sometimes
called child seats or car seats.
There are three basic types
of child restraints:
.Forward-facing child
restraints
.Rear-facing child restraints
.Belt-positioning booster
seats
The proper child restraint for
your child depends on their
size, weight, and age, and also
on whether the child restraint
is compatible with the vehicle
in which it will be used.
For each type of child
restraint, there are many
different models available.
When purchasing a child
restraint, be sure it is
designed to be used in a
motor vehicle and is designed
by a genuine child restraint
manufacturer. If it is, the child
restraint will have a label
saying that it meets federal
motor vehicle safety
standards.
The instruction manual that is
provided with the child
restraint states the weight
and height limitations for that
particular child restraint. In
addition, there are many kinds
of child restraints available for
children with special needs.{Warning
To reduce the risk of neck
and head injury in a crash,
infants and toddlers should
be secured in a rear-facing
child restraint until age two,
or until they reach the
maximum height and weight
limits of their child restraint.
{Warning
A young child's hip bones
are still so small that the
vehicle seat belt may not
remain low on the hip bones,
as it should. Instead, it may
settle up around the child's
abdomen. In a crash, the belt
would apply force on a body
area that is unprotected by
any bony structure. This
alone could cause serious or
fatal injuries. To reduce the
risk of serious or fatal
injuries during a crash, (Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 95
To reinstall the head restraint:
1. Insert the head restraintposts into the holes in the
top of the seatback. The
notches on the posts
should face the driver side
of the vehicle.
2. Push the head restraint down. If necessary, press
the height adjustment
release button to further
lower the head restraint.
See Head Restraints 045.
3. Try to move the head restraint to make sure that
it is locked in place.
Replacing LATCH
System Parts After a
Crash
{Warning
A crash can damage the
LATCH system in the
vehicle. A damaged LATCH
system may not properly
secure the child restraint,
resulting in serious injury or
even death in a crash. To
help make sure the LATCH
system is working properly
after a crash, see your
dealer to have the system
inspected and any
necessary replacements
made as soon as possible.
If the vehicle has the LATCH
system and it was being used
during a crash, new LATCH
system parts may be needed.
New parts and repairs may be
necessary even if the LATCH
system was not being used at
the time of the crash.
Securing Child
Restraints (With the
Seat Belt in the
Rear Seat)
When securing a child
restraint with the seat belts in
a rear seat position, study the
instructions that came with
the child restraint to make
sure it is compatible with this
vehicle.
If the child restraint has the
LATCH system, see Lower
Anchors and Tethers for
Children (LATCH System) 086
for how and where to install
the child restraint using
LATCH. If a child restraint is
secured in the vehicle using a
seat belt and it uses a top
tether, see Lower Anchors
and Tethers for Children
(LATCH System) 086 for top
tether anchor locations.
Do not secure a child seat in a
position without a top tether
anchor if a national or local law
requires that the top tether be

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Instruments and Controls 143
HUD Troubleshooting
If you cannot see the HUD
image when the ignition is on,
check that:
.Nothing is covering the
HUD lens.
.The HUD brightness setting
is not too dim or too bright.
.The HUD is adjusted to the
proper height.
.Polarized sunglasses are
not worn.
.The windshield and HUD lens
are clean.
If the HUD image is not
correct, contact your dealer.
The windshield is part of the
HUD system. See Windshield
Replacement 0349.
Vehicle Messages
Messages displayed on the
Driver Information Center
(DIC) indicate the status of the
vehicle or some action that may be needed to correct a
condition. Multiple messages
may appear one after another.
The messages that do not
require immediate action can
be acknowledged and cleared
by pressing the thumbwheel.
The messages that require
immediate action cannot be
cleared until that action is
performed.
All messages should be taken
seriously; clearing the
message does not correct the
problem.
If a SERVICE message
appears, see your dealer.
Follow the instructions given
in the messages. The system
displays messages regarding
the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Steering
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb
Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Engine and Transmission
.Tire Pressure
.Battery
Engine Power
Messages
ENGINE POWER IS
REDUCED
This message displays when
the vehicle's propulsion power
is reduced. A reduction in
propulsion power can affect
the vehicle's ability to
accelerate. If this message is
on, but there is no observed
reduction in performance,
proceed to your destination.
Under certain conditions the
performance may be reduced

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Driving and Operating 305
corresponding outside side
mirror and will flash if the turn
signal is on.
{Warning
LCA does not alert the
driver to vehicles outside of
the system detection zones,
pedestrians, bicyclists,
or animals. It may not
provide alerts when
changing lanes under all
driving conditions. Failure to
use proper care when
changing lanes may result in
injury, death, or vehicle
damage. Before making a
lane change, always check
mirrors, glance over your
shoulder, and use the turn
signals.LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone
of approximately one lane over
from both sides of the vehicle,
or 3.5 m (11 ft). The height of
the zone is approximately
between 0.5 m (1.5 ft) and 2 m
(6 ft) off the ground. The Side
Blind Zone Alert (SBZA)
warning area starts at
approximately the middle of
the vehicle and goes back 5 m
(16 ft). Drivers are also warned
of vehicles rapidly
approaching from up to 70 m
(230 ft) behind the vehicle.
How the System Works
The LCA symbol lights up in
the side mirrors when the
system detects a moving
vehicle in the next lane over
that is in the side blind zone or
rapidly approaching that zone
from behind. A lit LCA symbol
indicates it may be unsafe to
change lanes. Before making a
lane change, check the LCA
display, check mirrors, glance
over your shoulder, and use
the turn signals.
Left Side
Mirror DisplayRight Side
Mirror Display
When the vehicle is started,
both outside mirror LCA
displays will briefly come on to
indicate the system is
operating. When the vehicle is
in a forward gear, the left or
right side mirror display will

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
328 Vehicle Care
traction control, and stability
control. These accessories or
modifications could even
cause malfunction or damage
not covered by the vehicle
warranty.
Damage to suspension
components caused by
modifying vehicle height
outside of factory settings will
not be covered by the vehicle
warranty.
Damage to vehicle
components resulting from
modifications or the
installation or use of non-GM
certified parts, including
control module or software
modifications, is not covered
under the terms of the vehicle
warranty and may affect
remaining warranty coverage
for affected parts.
GM Accessories are designed
to complement and function
with other systems on the
vehicle. See your dealer to
accessorize the vehicle usinggenuine GM Accessories
installed by a dealer
technician.
Also, see Adding Equipment to
the Airbag-Equipped Vehicle
0
77.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work
on your vehicle if you do not
have the proper knowledge,
service manual, tools,
or parts. Always follow
owner’s manual procedures
and consult the service
manual for your vehicle
before doing any
service work. If doing some of your own
service work, use the proper
service manual. It tells you
much more about how to
service the vehicle than this
manual can. To order the
proper service manual, see
Publication Ordering
Information
0445.
This vehicle has an airbag
system. Before attempting to
do your own service work, see
Servicing the Airbag-Equipped
Vehicle 076.
If equipped with remote
vehicle start, open the hood
before performing any service
work to prevent remote
starting the vehicle
accidentally. See Remote
Vehicle Start 018.
Keep a record with all parts
receipts and list the mileage
and the date of any service
work performed. See
Maintenance Records 0431.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
344 Vehicle Care
Caution (Continued)
damage the washer fluid
tank and other parts of
the washer system.
.When using concentrated
washer fluid, follow the
manufacturer instructions
for adding water.
.Fill the washer fluid tank
only three-quarters full
when it is very cold. This
allows for fluid expansion
if freezing occurs, which
could damage the tank if it
is completely full.
Brakes
Disc brake linings have built-in
wear indicators that make a
high-pitched warning sound
when the brake linings are
worn and new linings are
needed. The sound can come
and go or can be heard all the
time when the vehicle is
moving, except when applying
the brake pedal firmly.
{Warning
The brake wear warning
sound means that soon the
brakes will not work well.
That could lead to a crash.
When the brake wear
warning sound is heard,
have the vehicle serviced.
Caution
Continuing to drive with
worn-out brake linings could
result in costly brake repairs.
Some driving conditions or
climates can cause a brake
squeal when the brakes are
first applied, clearing up
following several applications.
This does not mean something
is wrong with the brakes.
Properly torqued wheel nuts
are necessary to help prevent
brake pulsation. When tires
are rotated, inspect brake
linings for wear and evenly
tighten wheel nuts in the proper sequence to torque
specifications. See Capacities
and Specifications
0433.
Brake pads should be replaced
as complete axle sets.
Brake Pedal Travel
See your dealer if the brake
pedal does not return to
normal height, or if there is a
rapid increase in pedal travel.
This could be a sign that brake
service may be required.
Replacing Brake System
Parts
Always replace brake system
parts with new, approved
replacement parts. If this is
not done, the brakes may not
work properly. The braking
performance can change in
many ways if the wrong brake
parts are installed or if parts
are improperly installed.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 367
Caution (Continued)
on the tires. Always inspect
tires before use. See Tire
Inspection0380.
Tire Sidewall Labeling
Useful information about a
tire is molded into its
sidewall. The examples
show a typical passenger
vehicle tire and a compact
spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size
is a combination of letters
and numbers used to
define a particular tire's
width, height, aspect ratio,
construction type, and
service description. See the
“Tire Size” illustration in
this section.
(2) 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.
(3) DOT (Department of
Transportation)
:The
Department of
Transportation (DOT) code
indicates that the tire is in
compliance with the U.S. Department of
Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of
Manufacture
:The last
four digits of the TIN
indicate the tire
manufactured date. The
first two digits represent
the week and the last two
digits, the year. For
example, the third week of
the year 2020 would have
a 4-digit DOT date of 0320.
Week 01 is the first full
week (Sunday through
Saturday) of each year.
(4) Tire Identification
Number (TIN)
:The letters
and numbers following the
DOT (Department of
Transportation) code are
the Tire Identification
Number (TIN). The TIN
shows the manufacturer
and plant code, tire size,