2023 CADILLAC XT4 ECU

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
44 Seats and Restraints
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . 45
Front Seats
Power Seat Adjustment . . . 47
Reclining Seatbacks . . . . . . . . 47
Lumbar Adjustment . . . . . . . . 48
Massage . . . . . . . . . . . . . . . . . . . . . . . 49
Memory Seats . . . . . . . . . . . . . . . 50
Heated and VentilatedFront Seats . . . . . . . . . . . . . . . . . 53
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 55
Heated Rear Seats . . . . . . . . . 56
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 57
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . 60
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . 63
Seat Belt Extender . . . . . . . . . 64
Safety System Check . . . . . . 64
Seat Belt Care . . . . . . . . . . . . . . . 64 Replacing Seat Belt
System Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Airbag System
Airbag System . . . . . . . . . . . . . . . 65
Where Are theAirbags? . . . . . . . . . . . . . . . . . . . . . . 67
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 69
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 70
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . 70
What Will You See after an Airbag Inflates? . . . . . . . . 70
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . . . 72
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Adding Equipment to the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 77
Airbag System Check . . . . . . 78
Replacing Airbag System Parts after a Crash . . . . . . . 78
Child Restraints
Older Children . . . . . . . . . . . . . . . . 79 Infants and Young
Children . . . . . . . . . . . . . . . . . . . . . . 80
Child Restraint Systems . . . . . . . . . . . . . . . . . . . . . . 83
Where to Put the
Restraint . . . . . . . . . . . . . . . . . . . . . 85
Lower Anchors and Tethers for Children
(LATCH System) . . . . . . . . . . . 86
Replacing LATCH System Parts After a Crash . . . . . . . 95
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 95
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . 98

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 47
If you are installing a child
restraint in the rear seat, see
“Securing a Child Restraint
Designed for the LATCH
System”under Lower Anchors
and Tethers for Children
(LATCH System) 086.
Front Seats
Power Seat
Adjustment
{Warning
You can lose control of the
vehicle if you try to adjust a
driver seat while the vehicle
is moving. Adjust the driver
seat only when the vehicle is
not moving.
{Warning
The power seats will work
with the ignition off. Children
could operate the power
(Continued)
Warning (Continued)
seats and be injured. Never
leave children alone in the
vehicle.
To adjust a power seat,
if equipped:
.Move the seat forward or
rearward by sliding the
control forward or rearward.
.Raise or lower the front part
of the seat cushion by
moving the front of the
control up or down.
.Raise or lower the entire
seat by moving the rear of
the control up or down.
Reclining Seatbacks
{Warning
Sitting in a reclined position
when the vehicle is in motion
can be dangerous. Even
when buckled up, the seat
belts cannot do their job.
The shoulder belt will not be
against your body. Instead, it
will be in front of you. In a
crash, you could go into it,
receiving neck or other
injuries.
The lap belt could go up
over your abdomen. The belt
forces would be there, not
at your pelvic bones. This
could cause serious internal
injuries.(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 61
The lap-shoulder belt may
lock if you pull the belt
across you very quickly.
If this happens, let the belt
go back slightly to unlock
it. Then pull the belt across
you more slowly.
If the shoulder portion of a
passenger belt is pulled
out all the way, the child
restraint locking feature
may be engaged. See Child
Restraint Systems083.
If this occurs, let the belt
go back all the way and
start again. If the locking
feature stays engaged
after letting the belt go
back to stowed position on
the seat, move the seat
rearward or recline the
seat until the shoulder belt
retractor lock releases.
Engaging the child
restraint locking feature in
the front outboard seating
position may affect the
passenger sensing system.
See Passenger Sensing
System 072.
3. Push the latch plate into
the buckle until it clicks.
Pull up on the latch plate
to make sure it is secure.
If the belt is not long
enough, see Seat Belt
Extender 064.
Position the release button
on the buckle so that the
seat belt could be quickly
unbuckled if necessary.
4. If equipped with a shoulder belt height adjuster, move
it to the height that is right
for you. See “Shoulder Belt
Height Adjuster” later in
this section for instructions on use and
important safety
information.
5. To make the lap part tight,
pull up on the
shoulder belt.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
64 Seats and Restraints
Seat Belt Extender
If the vehicle's seat belt will
fasten around you, you should
use it.
But if a seat belt is not long
enough, your dealer will order
you an extender. Only a GM
dealer issued extender should
be used. When you go in to
order it, take the heaviest coat
you will wear, so the extender
will be long enough for you. To
help avoid personal injury, do
not let someone else use it,
and use it only for the seat it is
made to fit. The extender has
been designed for adults.
Never use it for securing child
restraints. For more
information on the proper use
and fit of seat belt extenders
see the instruction sheet that
comes with the extender.
Safety System Check
Periodically check the seat
belt reminder, seat belts,
buckles, latch plates,
retractors, shoulder beltheight adjusters (if equipped),
and seat belt anchorages to
make sure they are all in
working order. Look for any
other loose or damaged seat
belt system parts that might
keep a seat belt system from
performing properly. See your
dealer to have it repaired.
Torn, frayed, or twisted seat
belts may not protect you in a
crash. Torn or frayed seat
belts can rip apart under
impact forces. If a belt is torn
or frayed, have it replaced
immediately. If a belt is
twisted, it may be possible to
untwist by reversing the latch
plate on the webbing. If the
twist cannot be corrected, ask
your dealer to fix it.
Make sure the seat belt
reminder light is working. See
Seat Belt Reminders
0123.
Keep seat belts clean and dry.
See Seat Belt Care 064.
Seat Belt Care
Keep belts clean and dry. Seat belts should be properly
cared for and maintained.
Seat belt hardware should be
kept dry and free of dust or
debris. As necessary, exterior
hard surfaces and seat belt
webbing may be lightly
cleaned with mild soap and
water. Ensure there is not
excessive dust or debris in the
mechanism. If dust or debris
exists in the system please
see the dealer. Parts may
need to be replaced to ensure
proper functionality of the
system.
{Warning
Do not bleach or dye seat
belt webbing. It may severely
weaken the webbing. In a
crash, they might not be
able to provide adequate
protection. Clean and rinse
seat belt webbing only with
mild soap and lukewarm
water. Allow the webbing
to dry.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 67
{Warning
Children who are up against,
or very close to, any airbag
when it inflates can be
seriously injured or killed.
Always secure children
properly in the vehicle. To
read how, see Older
Children079 or
Infants and Young Children
0 80.
There is an airbag readiness
light on the instrument cluster,
which shows the airbag
symbol.
The system checks the airbag
electrical system for
malfunctions. The light tells
you if there is an electrical
problem. See Airbag
Readiness Light 0124.
Where Are the
Airbags?
The driver frontal airbag is in
the center of the steering
wheel.
The front outboard passenger
frontal airbag is in the
passenger side instrument
panel.
The driver knee airbag is
below the steering column.
The front outboard passenger
knee airbag is below the
glove box.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
68 Seats and Restraints
Driver Side Shown,
Passenger Side Similar
The driver and front outboard
passenger seat-mounted side
impact airbags are in the side
of the seatbacks closest to
the door.Driver Side Shown,
Passenger Side Similar
The roof-rail airbags for the
driver, front outboard
passenger, and second row
outboard passengers are in
the ceiling above the side
windows.
{Warning
If something is between an
occupant and an airbag, the
airbag might not inflate
properly or it might force
the object into that person (Continued)
Warning (Continued)
causing severe injury or
even death. The path of an
inflating airbag must be kept
clear. Do not put anything
between an occupant and an
airbag, and do not attach or
put anything on the steering
wheel hub or on or near any
other airbag covering.
Do not use seat accessories
that block the inflation path
of a seat-mounted side
impact airbag.
Never secure anything to
the roof of a vehicle with
roof-rail airbags by routing a
rope or tie‐down through
any door or window opening.
If you do, the path of an
inflating roof-rail airbag will
be blocked.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
72 Seats and Restraints
some new parts for the
airbag system. If you do not
get them, the airbag system
will not be there to help
protect you in another crash.
A new system will include
airbag modules and possibly
other parts. The service
manual for the vehicle
covers the need to replace
other parts.
.The vehicle has a crash
sensing and diagnostic
module which records
information after a crash.
See Vehicle Data Recording
and Privacy0448 and
Event Data Recorders 0449.
.Let only qualified technicians
work on the airbag system.
Improper service can mean
that an airbag system will
not work properly. See your
dealer for service.
Passenger Sensing
System
The vehicle has a passenger
sensing system for the front
outboard passenger position.
The passenger airbag status
indicator will light on the
overhead console when the
vehicle is started.
The words ON and OFF, and
the symbols for on and off, will
be visible during the system
check. When the system check
is complete, either the word
ON or OFF, and the symbol for
on or off, will be visible. See
Passenger Airbag Status
Indicator 0125.
The passenger sensing
system turns off the front
outboard passenger frontal
airbag and knee airbag under certain conditions. No other
airbag is affected by the
passenger sensing system.
The passenger sensing
system works with sensors
that are part of the front
outboard passenger seat and
seat belt. The sensors are
designed to detect the
presence of a properly seated
occupant and determine if the
front outboard passenger
frontal airbag and knee airbag
should be allowed to inflate
or not.
According to accident
statistics, children are safer
when properly secured in a
rear seat in the correct child
restraint for their weight
and size.
Whenever possible, children
aged 12 and under should be
secured in a rear seating
position.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 73
Never put a rear-facing child
seat in the front. This is
because the risk to the
rear-facing child is so great,
if the airbag inflates.
{Warning
A child in a rear-facing child
restraint can be seriously
injured or killed if the
passenger frontal airbag
inflates. This is because the
back of the rear-facing child
restraint would be very
close to the inflating airbag.
A child in a forward-facing
child restraint can be
seriously injured or killed if
the passenger frontal airbag
inflates and the passenger
seat is in a forward position.
Even if the passenger
sensing system has turned
off the front outboard
passenger airbag(s), no
system is fail-safe. No one
can guarantee that an(Continued)
Warning (Continued)
airbag will not deploy under
some unusual circumstance,
even though the airbag(s)
are off.
Never put a rear-facing child
restraint in the front seat,
even if the airbag is off.
If securing a forward-facing
child restraint in the front
outboard passenger seat,
always move the seat as far
back as it will go. It is better
to secure child restraints in
the rear seat. Consider
using another vehicle to
transport the child when a
rear seat is not available.
The passenger sensing
system is designed to turn off
the front outboard passenger
frontal airbag and knee
airbag if:
.The front outboard
passenger seat is
unoccupied.
.The system determines an
infant is present in a child
restraint.
.A front outboard passenger
takes his/her weight off of
the seat for a period of time.
.There is a critical problem
with the airbag system or
the passenger sensing
system.
When the passenger sensing
system has turned off the
front outboard passenger
frontal airbag and knee airbag,
the OFF indicator will light and
stay lit as a reminder that the
airbags are off. See Passenger
Airbag Status Indicator 0125.
The passenger sensing
system is designed to turn on
the front outboard passenger
frontal airbag and knee airbag,
anytime the system senses
that a person of adult size is
sitting properly in the front
outboard passenger seat.
When the passenger sensing
system has allowed the airbag
to be enabled, the ON