
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 71
The operation of the airbag
system can also be affected
by changing, including
improperly repairing or
replacing, any parts of the
following:
.Airbag system, including
airbag modules, front or side
impact sensors, sensing and
diagnostic module, or airbag
wiring
.Front seats, including
stitching, seams or zippers
.Seat belts
.Steering wheel, instrument
panel, overhead console,
ceiling trim, or pillar
garnish trim
.Inner door seals, including
speakers
Your dealer and the service
manual have information about
the location of the airbag
modules and sensors, sensing
and diagnostic module, and
airbag wiring along with the
proper replacement
procedures. In addition, the vehicle has a
passenger sensing system for
the front outboard passenger
position, which includes
sensors that are part of the
passenger seat. The
passenger sensing system
may not operate properly if
the original seat trim is
replaced with non-GM covers,
upholstery, or trim; or with GM
covers, upholstery, or trim
designed for a different
vehicle. Any object, such as an
aftermarket seat heater or a
comfort-enhancing pad or
device, installed under or on
top of the seat fabric, could
also interfere with the
operation of the passenger
sensing system. This could
either prevent proper
deployment of the passenger
airbag(s) or prevent the
passenger sensing system
from properly turning off the
passenger airbag(s). See
Passenger Sensing System
0
66. If the vehicle has rollover
roof-rail airbags, see Different
Size Tires and Wheels
0433
for additional important
information.
If the vehicle must be modified
because you have a disability
and have questions about
whether the modifications will
affect the vehicle's airbag
system, or if you have
questions about whether the
airbag system will be affected
if the vehicle is modified for
any other reason, call
Customer Assistance. See
Customer Assistance Offices
0 485.Airbag System Check
The airbag system does not
need regularly scheduled
maintenance or replacement.
Make sure the airbag
readiness light is working. See
Airbag Readiness Light 0116.

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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
90 Seats and Restraints
If the retractor is not
locked, repeat
Steps 4 and 5.
6. If the child restraint has a top tether, follow the child
restraint manufacturer's
instructions regarding the
use of the top tether. See
Lower Anchors and
Tethers for Children
(LATCH System) 080.
7. Before placing a child in the child restraint, make
sure it is securely held in
place. To check, grasp the
child restraint at the seat
belt path and attempt to
move it side to side and
back and forth. When the
child restraint is properly
installed, there should be
no more than 2.5 cm (1 in)
of movement.
To remove the child restraint,
unbuckle the vehicle seat belt
and let it return to the stowed
position. If the top tether is
attached to a top tether
anchor, disconnect it.Securing Child
Restraints (With the
Seat Belt in the
Front Seat)
This vehicle has airbags.
A rear seat is a safer place to
secure a forward-facing child
restraint. See Where to Put
the Restraint 079.
In addition, the vehicle has a
passenger sensing system
which is designed to turn off
the front outboard passenger
frontal airbag and knee airbag
under certain conditions. See
Passenger Sensing System
0 66 and
Passenger Airbag Status
Indicator 0117 for more
information, including
important safety information.
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 deploys.
{Warning
A child in a rear-facing child
restraint can be seriously
injured or killed if the front
outboard 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 front
outboard 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
airbag will not deploy under
(Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 91
Warning (Continued)
some unusual circumstance,
even though the airbag(s)
are off.
Secure rear-facing child
restraints in a rear seat,
even if the airbag(s) are off.
If you secure 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 the child restraint
in a rear seat.
See Passenger Sensing
System066 for additional
information.
If the child restraint uses a top
tether, see Lower Anchors
and Tethers for Children
(LATCH System) 080 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
anchored, or if the instructions
that come with the child
restraint say that the top
tether must be anchored.
In Canada, the law requires
that forward-facing child
restraints have a top tether,
and that the tether be
attached.
When using the lap-shoulder
belt to secure the child
restraint in this position, follow
the instructions that came
with the child restraint and the
following instructions:
1. Move the seat as far back as it will go before
securing the
forward-facing child
restraint. Move the seat
upward or the seatback to
an upright position,
if needed, to get a tight
installation of the child
restraint. There must be
finger clearance between
the push button and the
child restraint. When the passenger
sensing system has turned
off the front outboard
passenger frontal airbag
and knee airbag, the OFF
indicator on the passenger
airbag status indicator
should light and stay lit
when you start the vehicle.
See Passenger Airbag
Status Indicator
0117.
2. Put the child restraint on the seat.
3. Pick up the latch plate and run the lap and shoulder
portions of the vehicle
seat belt through or
around the restraint.
Ensure the seat belt
webbing is routed as direct
as possible and is not
caught on seat handles or
plastic trim. The child
restraint instructions will
show you how.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 93
seat upward and repeat
prior installation steps.
Otherwise secure the child
restraint in a rear seat.
When installing a
forward-facing child
restraint, it may be helpful
to use your knee to push
down on the child restraint
as you tighten the belt.
Try to pull the belt out of
the retractor to make sure
the retractor is locked.
If the retractor is not
locked, repeat
Steps 5 and 6.
7. Before placing a child in the child restraint, make
sure it is securely held in
place. To check, grasp the
child restraint at the seat
belt path and attempt to
move it side to side and
back and forth. When the
child restraint is properly
installed, there should be
no more than 2.5 cm (1 in)
of movement. If the airbags are off, the OFF
indicator in the passenger
airbag status indicator will
come on and stay on when the
vehicle is started.
If a child restraint has been
installed and the ON indicator
is lit, see
“If the On Indicator Is
Lit for a Child Restraint” under
Passenger Sensing System
0 66.
To remove the child restraint,
unbuckle the vehicle seat belt
and let it return to the stowed
position.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 97
Instruments and
Controls
Controls
Steering WheelAdjustment . . . . . . . . . . . . . . . . . . 98
Heated Steering Wheel . . . 98
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Windshield Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . . 99
Compass . . . . . . . . . . . . . . . . . . . . . . 101
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Power Outlets . . . . . . . . . . . . . . . 101
Wireless Charging . . . . . . . . . 102
Warning Lights, Gauges,
and Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . 105
Instrument Cluster (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . 106
Instrument Cluster (Uplevel) . . . . . . . . . . . . . . . . . . . . . 108
Speedometer . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . 112
Trip Odometer . . . . . . . . . . . . . . . 112
Tachometer . . . . . . . . . . . . . . . . . . 113
Fuel Gauge . . . . . . . . . . . . . . . . . . . 113 Engine Coolant
Temperature Gauge
(Base Level) . . . . . . . . . . . . . . . . 114
Engine Coolant Temperature Gauge
(Uplevel) . . . . . . . . . . . . . . . . . . . . . 115
Seat Belt Reminders . . . . . . . 115
Airbag Readiness Light . . . 116
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 117
Charging System Light . . . 117
Malfunction Indicator Lamp (Check Engine
Light) . . . . . . . . . . . . . . . . . . . . . . . . . 118
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 120
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . 121
Antilock Brake System (ABS) Warning Light . . . . . 121
Performance Shifting Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Automatic Vehicle Hold (AVH) Light . . . . . . . . . . . . . . . . . 122
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Automatic Emergency
Braking (AEB) Disabled
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 123
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 123
Traction Off Light . . . . . . . . . 123
StabiliTrak OFF Light . . . . . 124
Traction Control System (TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Engine Coolant Temperature Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Driver Mode Control Light . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Tire Pressure Light . . . . . . . . 126
Engine Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Security Light . . . . . . . . . . . . . . . 128
High-Beam On Light . . . . . . 128
Lamps On Reminder . . . . . . 128
Cruise Control Light . . . . . . 128
Door Ajar Light . . . . . . . . . . . . . 129

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
116 Instruments and Controls
If the driver seat belt is
buckled, neither the light nor
the chime comes on.
Front Passenger Seat Belt
Reminder Light
The vehicle may have a front
passenger seat belt reminder
light near the passenger
airbag status indicator. See
Passenger Sensing System
066.
When the vehicle is started,
this light flashes and a chime
may come on to remind
passengers to fasten their
seat belt.
Then the light stays on solid
until the belt is buckled. This
cycle continues several times
if the front passenger remains
or becomes unbuckled while
the vehicle is moving. If the front passenger seat
belt is buckled, neither the
chime nor the light comes on.
The front passenger seat belt
reminder light and chime may
come on if an object is put on
the seat such as a briefcase,
handbag, grocery bag, laptop,
or other electronic device. To
turn off the reminder light
and/or chime, remove the
object from the seat or buckle
the seat belt.
Airbag Readiness
Light
This light shows if there is an
electrical problem with the
airbag system. It is located in
the instrument cluster. The
system check includes the
airbag sensor(s), the
passenger sensing system,
the pretensioners, the airbag
modules, the wiring, and the
crash sensing and diagnostic
module. For more information
on the airbag system, see
Airbag System
059.
The airbag readiness light
comes on for several seconds
when the vehicle is started.
If the light does not come on
then, have it fixed immediately.
{Warning
If the airbag readiness light
stays on after the vehicle is
started or comes on while
driving, it means the airbag
system might not be working
properly. The airbags in the
vehicle might not inflate in a
crash, or they could even
inflate without a crash. To
help avoid injury, have the
vehicle serviced right away.
If there is a problem with the
airbag system, a Driver
Information Center (DIC)
message may also come on.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Instruments and Controls 117
Passenger Airbag
Status Indicator
The vehicle has a passenger
sensing system. See
Passenger Sensing System
066 for important safety
information. The overhead
console has a passenger
airbag status indicator.
When the vehicle is started,
the passenger airbag status
indicator will light ON and OFF,
and the symbols for on and
off, for several seconds as a
system check. Then, after
several more seconds, the
status indicator will light either
ON or OFF, and either the
symbol for on or off, to let you
know the status of the front
outboard passenger frontal
airbag and knee airbag. If the word ON, and the on
symbol, is lit on the passenger
airbag status indicator, it
means that the front outboard
passenger frontal airbag and
knee airbag are allowed to
inflate.
If the word OFF, and the off
symbol, is lit on the passenger
airbag status indicator, it
means that the passenger
sensing system has turned off
the front outboard passenger
frontal airbag and knee airbag.
If, after several seconds, all of
the symbols remain lit, or if no
symbols are lit, or if the airbag
readiness light is on, there
may be a problem with the
lights or the passenger
sensing system. See your
dealer for service right away.
{Warning
If the airbag readiness light
ever comes on and stays on,
it means that something may
be wrong with the airbag
(Continued)
Warning (Continued)
system. To help avoid injury
to yourself or others, have
the vehicle serviced right
away. See Airbag Readiness
Light0116 for more
information, including
important safety
information.
Charging System
Light
The charging system light
comes on briefly when the
ignition is turned on, but the
engine is not running, as a
check to show the light is
working. It should go out when
the engine is started.