2021 CADILLAC XT4 warning light

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
54 SEATS AND RESTRAINTS
{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.
Replacing Seat Belt
System Parts after a Crash
{Warning
A crash can damage the seat belt
system in the vehicle. A damaged
seat belt system may not properly
protect the person using it,
resulting in serious injury or even
death in a crash. To help make sure
the seat belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.After a minor crash, replacement of
seat belts may not be necessary. But
the seat belt assemblies that were
used during any crash may have been
stressed or damaged. See your dealer
to have the seat belt assemblies
inspected or replaced.
New parts and repairs may be
necessary even if the seat belt system
was not being used at the time of the
crash.
Have the seat belt pretensioners
checked if the vehicle has been in a
crash, or if the airbag readiness light
stays on after you start the vehicle or
while you are driving. See
Airbag
Readiness Light 0104.
Airbag System
The vehicle has the following airbags:
.A frontal airbag for the driver
.A frontal airbag for the front
outboard passenger
.A knee airbag for the driver.
.A knee airbag for the front outboard
passenger.
.A seat-mounted side impact airbag
for the driver
.A seat-mounted side impact airbag
for the front outboard passenger
.A roof-rail airbag for the driver and
the passenger seated directly behind
the driver
.A roof-rail airbag for the front
outboard passenger and the
passenger seated directly behind the
front outboard passenger
All vehicle airbags have the word
AIRBAG on the trim or on a label near
the deployment opening.
For frontal airbags, the word AIRBAG
is on the center of the steering wheel
for the driver and on the instrument
panel for the front outboard
passenger.
For knee airbags, the word AIRBAG is
on the lower part of the instrument
panel.
For seat-mounted side impact airbags,
the word AIRBAG is on the side of the
seatback or side of the seat closest to
the door.
For roof-rail airbags, the word AIRBAG
is on the ceiling or trim.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
SEATS AND RESTRAINTS 55
Airbags are designed to supplement
the protection provided by seat belts.
Even though today's airbags are also
designed to help reduce the risk of
injury from the force of an inflating
bag, all airbags must inflate very
quickly to do their job.
Here are the most important things to
know about the airbag system:
{Warning
You can be severely injured or
killed in a crash if you are not
wearing your seat belt, even with
airbags. Airbags are designed to
work with seat belts, not replace
them. Also, airbags are not designed
to inflate in every crash. In some
crashes seat belts are the only
restraint. SeeWhen Should an
Airbag Inflate? 057.
Wearing your seat belt during a
crash helps reduce your chance of
hitting things inside the vehicle or
being ejected from it. Airbags are
“supplemental restraints” to the
seat belts. Everyone in the vehicle (Continued)
Warning (Continued)
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 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.
(Continued)
Warning (Continued)
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. To read
how, seeOlder Children 065 or
Infants and Young Children 067.
There is an airbag readiness light on
the instrument cluster, which shows
the airbag symbol.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
60 SEATS AND RESTRAINTS
.Airbags are designed to inflate only
once. After an airbag inflates, you
will need 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 Privacy
0385 and
Event Data Recorders 0385.
.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 0104.
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.
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
SEATS AND RESTRAINTS 61
Warning (Continued)
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 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 0104.
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 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 0104 for
more information, including
important safety information.
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

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
SEATS AND RESTRAINTS 65
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. SeeCustomer
Assistance Offices 0376.
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 0104.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag may
not work properly. Do not open or
break the airbag coverings. If there
are any opened or broken airbag
coverings, have the airbag covering
and/or airbag module replaced. For
the location of the airbags, see
Where Are the Airbags? 056. See
your dealer for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle. A damaged
airbag system may not properly
protect you and your passenger(s)
in a crash, resulting in serious
injury or even death. To help make
sure the airbag systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See your
dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0104.
Child Restraints
Older Children
Older children who have outgrown
booster seats should wear the vehicle’s
seat belts.
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
82 SEATS AND RESTRAINTS
Warning (Continued)
SeePassenger Sensing System 060
for additional information.
If the child restraint uses a top tether,
see Lower Anchors and Tethers for
Children (LATCH System) 072 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.
When the passenger sensing
system has turned off the front
outboard passenger frontal 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
0
104.
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. The child restraint
instructions will show you how.
4. Push the latch plate into the buckleuntil it clicks.
Position the release button on the
buckle, away from the child
restraint, so that the seat belt
could be quickly unbuckled if
necessary.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
90 INSTRUMENTS AND CONTROLS
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . . . . 91
Steering Wheel Controls . . . . . . . . . . 91
Heated Steering Wheel . . . . . . . . . . . . 91
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Windshield Wiper/Washer . . . . . . . . 92
Rear Window Wiper/Washer . . . . . . 94
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Power Outlets . . . . . . . . . . . . . . . . . . . . . . 95
Wireless Charging . . . . . . . . . . . . . . . . . 96
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . 99
Instrument Cluster . . . . . . . . . . . . . . . . 99
Speedometer . . . . . . . . . . . . . . . . . . . . . . 101
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 101
Trip Odometer . . . . . . . . . . . . . . . . . . . . 101
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 102
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . 102
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Seat Belt Reminders . . . . . . . . . . . . . . 103
Airbag Readiness Light . . . . . . . . . . 104 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 104
Charging System Light . . . . . . . . . . . 105
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . 105
Brake System Warning Light . . . . 107
Electric Parking Brake Light . . . . . 107
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . . . 108
Gear Shifting Light . . . . . . . . . . . . . . . 108
Performance Shifting Light . . . . . . 109
All-Wheel-Drive Light . . . . . . . . . . . . 109
Lane Keep Assist (LKA) Light . . . 109
Vehicle Ahead Indicator . . . . . . . . . 109
Pedestrian Ahead Indicator . . . . . . 110
Traction Off Light . . . . . . . . . . . . . . . . 110
StabiliTrak OFF Light . . . . . . . . . . . . 110
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . 110
Engine Coolant Temperature Warning Light (Uplevel) . . . . . . . . 111
Driver Mode Control Light . . . . . . . 111
Tire Pressure Light . . . . . . . . . . . . . . . 111
Engine Oil Pressure Light . . . . . . . . 112
Low Fuel Warning Light . . . . . . . . . 112
Security Light . . . . . . . . . . . . . . . . . . . . . 113
High-Beam On Light . . . . . . . . . . . . . 113
Lamps On Reminder . . . . . . . . . . . . . 113 Cruise Control Light . . . . . . . . . . . . . . 113
Door Ajar Light . . . . . . . . . . . . . . . . . . . 114
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . . . . . 114
Head-Up Display (HUD) . . . . . . . . . 116
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . 119
Engine Power Messages . . . . . . . . . . 120
Vehicle Speed Messages . . . . . . . . . 120
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . 120
Universal Remote System
Universal Remote System . . . . . . . . 125
Universal Remote System Programming . . . . . . . . . . . . . . . . . . . 125
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . . . . . . 127

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
INSTRUMENTS AND CONTROLS 99
Warning Lights, Gauges,
and Indicators
Warning lights and gauges can signal
that something is wrong before it
becomes serious enough to cause an
expensive repair or replacement.
Paying attention to the warning lights
and gauges could prevent injury.
Some warning lights come on briefly
when the engine is started to indicate
they are working. When one of the
warning lights comes on and stays on
while driving, or when one of the
gauges shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.
Instrument Cluster
Base Level
1.Tachometer 0102
2. Driver Information Center (DIC)
0114
3. Speedometer 0101 4.
Engine Coolant Temperature Gauge
0103
5. Fuel Gauge 0102