ECU CADILLAC CT4 2023 User Guide

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 57
Comfort guides are available
through your dealer for the
rear outboard seating
positions. Instructions are
included with the guides.
Seat Belt Use During
Pregnancy
Seat belts work for everyone,
including pregnant women.
Like all occupants, they are
more likely to be seriously
injured if they do not wear
seat belts.
A pregnant woman should
wear a lap-shoulder belt, and
the lap portion should be worn
as low as possible, below the
rounding, throughout the
pregnancy.
The best way to protect the
fetus is to protect the mother.
When a seat belt is worn
properly, it is more likely that
the fetus will not be hurt in a
crash. For pregnant women, as
for anyone, the key to making
seat belts effective is wearing
them properly.
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, donot 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 belt
height 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

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
60 Seats and Restraints
Warning (Continued)
the vehicle should wear a
seat belt properly, whether
or not there is an airbag for
that person.
{Warning
Because airbags inflate with
great force and faster than
the blink of an eye, anyone
who is up against, or very
close to, any airbag when it
inflates can be seriously
injured or killed. Do not sit
unnecessarily close to any
airbag, as you would be if
sitting on the edge of the
seat or leaning forward.
Seat belts help keep you in
position before and during a
crash. Always wear a seat
belt, even with airbags. The
driver should sit as far back
as possible while still
maintaining control of the(Continued)
Warning (Continued)
vehicle. The seat belts and
the front outboard
passenger airbags are most
effective when you are
sitting well back and upright
in the seat with both feet on
the floor.
Occupants should not lean
on or sleep against the door
or side windows in seating
positions with seat-mounted
side impact airbags and/or
roof-rail airbags.
{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.(Continued)
Warning (Continued)
To read how, see Older
Children072 or
Infants and Young Children
0 74.
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 0116.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
62 Seats and Restraints
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.
When Should an
Airbag Inflate?
This vehicle is equipped with
airbags. See Airbag System
059. Airbags are designed to
inflate if the impact exceeds
the specific airbag system's
deployment threshold.
Deployment thresholds are
used to predict how severe a
crash is likely to be in time for
the airbags to inflate and help
restrain the occupants. The
vehicle has electronic sensors
that help the airbag system
determine the severity of the
impact. Deployment
thresholds can vary with
specific vehicle design.
Frontal airbags are designed
to inflate in moderate to
severe frontal crashes to help
reduce the potential for
severe injuries, mainly to the
driver's or front outboard
passenger's head and chest.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
66 Seats and Restraints
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
Indicator0117.
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.
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)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 67
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.
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 0117.
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
airbags to be enabled, the ON
indicator will light and stay lit
as a reminder that the airbags
are active. For some children, including
children in child restraints, and
for very small adults, the
passenger sensing system
may or may not turn off the
front outboard passenger
frontal airbag and knee airbag,
depending upon the person's
seating posture and body
build. Everyone in the vehicle
who has outgrown child
restraints should wear a seat
belt properly
—whether or not
there is an airbag for that
person.
{Warning
If the airbag readiness light
ever comes on and stays on,
it means that something may
be wrong with the airbag
system. To help avoid injury
to yourself or others, have
the vehicle serviced right
away. See Airbag Readiness
Light 0116 for more
information, including
important safety
information.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
68 Seats and Restraints
If the On Indicator Is Lit
for a Child Restraint
The passenger sensing
system is designed to turn off
the front outboard passenger
frontal airbag and knee airbag,
if the system determines that
an infant is present in a child
restraint. If a child restraint
has been installed and the ON
indicator is lit:1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such
as blankets, cushions, seat
covers, seat heaters,
or seat massagers. 4. Reinstall the child restraint
following the directions
provided by the child
restraint manufacturer and
refer to Securing Child
Restraints (With the Seat
Belt in the Rear Seat) 088
or
Securing Child Restraints
(With the Seat Belt in the
Front Seat) 090.
Make sure the seat belt
retractor is locked by
pulling the shoulder belt all
the way out of the
retractor when installing
the child restraint, even if
the child restraint is
equipped with a seat belt
lock off. When the
retractor lock is set, the
belt can be tightened but
not pulled out of the
retractor. 5. If, after reinstalling the
child restraint and
restarting the vehicle, the
ON indicator is still lit, turn
the vehicle off. Then
slightly recline the vehicle
seatback and adjust the
seat cushion, if adjustable,
to make sure that the
vehicle seatback is not
pushing the child restraint
into the seat cushion.
Also make sure the child
restraint is not trapped
under the vehicle head
restraint. If this happens,
adjust the head restraint.
See Head Restraints 037.
6. Restart the vehicle.
The passenger sensing
system may or may not turn
off the airbags for a child in a
child restraint depending upon
the child’s size. It is better to
secure the child restraint in a
rear seat. Never put a
rear-facing child restraint in
the front seat, even if the ON
indicator is not lit.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 75
Warning (Continued)
a vehicle and never allow
children to improperly wear,
or play with, the seat belts.
Every time infants and young
children ride in vehicles, they
should have the protection
provided by appropriate child
restraints. Neither the
vehicle's seat belt system nor
its airbag system is designed
for them.
Children who are not
restrained properly can strike
other people, or can be
thrown out of the vehicle.
{Warning
Never hold an infant or a
child while riding in a vehicle.
Due to crash forces, an
infant or a child will become
so heavy it is not possible to
hold it during a crash. For
example, in a crash at only
40 km/h (25 mph), a (Continued)
Warning (Continued)
5.5 kg (12 lb) infant will
suddenly become a
110 kg (240 lb) force on a
person's arms. An infant or
child should be secured in an
appropriate child restraint.
{Warning
Children who are up against,
or very close to, any airbag
when it inflates can be
seriously injured or killed.
Never put a rear-facing child(Continued)
Warning (Continued)
restraint in the front
outboard seat. Secure a
rear-facing child restraint in
a rear seat. It is also better
to secure a forward-facing
child restraint in a rear seat.
If you must secure a
forward-facing child
restraint in the front
outboard seat, always move
the front passenger seat as
far back as it will go.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
76 Seats and Restraints
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,
young children should
always be secured in an
appropriate child restraint.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
78 Seats and Restraints
Securing an Add-On Child
Restraint in the Vehicle
{Warning
A child can be seriously
injured or killed in a crash if
the child restraint is not
properly secured in the
vehicle. Secure the child
restraint properly in the
vehicle using the vehicle
seat belt or LATCH system,
following the instructions
that came with that child
restraint and the
instructions in this manual.
To help reduce the chance of
injury, the child restraint must
be secured in the vehicle. Child
restraints must be secured in
vehicle seats by lap belts or
the lap belt portion of a
lap-shoulder belt, or by the
LATCH system. See Lower
Anchors and Tethers for
Children (LATCH System) 080
for more information. Never
use a seat belt extender when installing a child restraint.
Never use non-regulated
aftermarket anchors or
attachments to secure a child
restraint. Children can be
endangered in a crash if the
child restraint is not properly
secured in the vehicle.
When securing an add-on child
restraint, refer to the
following:
1. Instruction labels provided on the child restraint
2. Instruction manual provided with the child
restraint
3. This vehicle owner's manual
The child restraint instructions
are important, so if they are
not available, obtain a
replacement copy from the
manufacturer. Keep in mind that an
unsecured child restraint can
move around in a collision or
sudden stop and injure people
in the vehicle. Be sure to
properly secure any child
restraint in the vehicle
—even
when no child is in it.
In some areas Certified Child
Passenger Safety Technicians
(CPSTs) are available to
inspect and demonstrate how
to correctly use and install
child restraints. In the U.S.,
refer to the National Highway
Traffic Safety Administration
(NHTSA) website to locate the
nearest child safety seat
inspection station. For CPST
availability in Canada, check
with Transport Canada or the
Provincial Ministry of
Transportation office.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 79
Securing the Child Within
the Child Restraint
{Warning
A child can be seriously
injured or killed in a crash if
the child is not properly
secured in the child
restraint. Secure the child
properly following the
instructions that came with
that child restraint.
Where to Put the
Restraint
According to accident
statistics, children and infants
are safer when properly
restrained in an appropriate
child restraint secured in a
rear seating position.Whenever possible, children
aged 12 and under should be
secured in a rear seating
position.
Never put a rear-facing child
restraint in the front. This is
because the risk to the
rear-facing child is so great if
the airbag deploys.
{Warning
A child in a rear-facing child
restraint can be seriously
injured or killed if the front
passenger 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 front passenger airbag
inflates and the passenger
seat is in a forward position.
(Continued)
Warning (Continued)
Even if the passenger
sensing system has turned
off the front passenger
frontal airbag, no system is
fail-safe. No one can
guarantee that an airbag will
not deploy under some
unusual circumstance, even
though it is turned off.
Secure rear-facing child
restraints in a rear seat,
even if the airbag is off.
If you secure a
forward-facing child
restraint in the front seat,
always move the front
passenger seat as far back
as it will go. It is better to
secure the child restraint in
a rear seat.
See Passenger Sensing
System066 for additional
information.