ECU CADILLAC XT4 2023 Owner's Guide

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
96 Seats and Restraints
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.
If the child restraint or vehicle
seat position does not have
the LATCH system, you will be
using the seat belt to secure
the child restraint. Be sure to
follow the instructions that
came with the child restraint.
If more than one child restraint
needs to be installed in the
rear seat, be sure to read
Where to Put the Restraint
085.
1. Put the child restraint on the seat.
If the head restraint
interferes with the proper
installation of the child
restraint, the head
restraint may be removed. See "Head Restraint
Removal and
Reinstallation" under
Lower Anchors and
Tethers for Children
(LATCH System)
086.
2. Pick up the latch plate and run the lap and shoulder
portions of the vehicle
seat belt through or
around the child restraint.
Ensure the seat belt
webbing is routed as
directly as possible and is
not caught on seat handles
or plastic trim. The child
restraint instructions will
show you how.
3. Push the latch plate intothe buckle until 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.
There must not be direct
contact of the child
restraint to the push
button.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 97
4. Pull the shoulder belt allthe way out of the
retractor to set the lock.
When the retractor lock is
set, the belt can be
tightened but not pulled
out of the retractor.5. To tighten the belt, pushdown on the child restraint,
pull the shoulder portion of
the belt to tighten the lap
portion of the belt, and
feed the shoulder belt
back into the retractor.
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 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) 086.
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
98 Seats and Restraints
If the head restraint was
removed, reinstall it before the
seating position is used. See
"Head Restraint Removal and
Reinstallation" under Lower
Anchors and Tethers for
Children (LATCH System)086
for additional information on
installing the head restraint
properly.
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 085.
In addition, the vehicle has a
passenger sensing system
which is designed to turn
off the front outboard
passenger frontal and
knee airbag under certain
conditions. See Passenger
Sensing System 072 and Passenger Airbag Status
Indicator
0125 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.
(Continued)
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.
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
System072 for additional
information.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Seats and Restraints 99
If the child restraint 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
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 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
0125.
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.
4. Push the latch plate into
the buckle until 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-
16412876) - 2023 - CRC - 3/25/22
100 Seats and Restraints
5. Pull the shoulder belt allthe way out of the
retractor to set the lock.
When the retractor lock is
set, the belt can be
tightened but not pulled
out of the retractor.6. To tighten the belt, pushdown on the child restraint,
pull the shoulder portion of
the belt to tighten the lap
portion of the belt, and
feed the shoulder belt
back into the retractor.
There must be finger
clearance between the
push button and the child
restraint. If there is not
clearance between the
buckle push button and the
child restraint, move the
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
106 Storage
Additional Storage
Features
Cargo Cover
{Warning
An unsecured cargo cover
could strike people in a
sudden stop or turn, or in a
crash. Store the cargo cover
securely or remove it from
the vehicle.
{Warning
Do not place objects on the
cargo cover. Sudden stops
or turns can cause objects
to be thrown in the vehicle.
You or others could be
injured.
If equipped, the cargo cover
can be used to cover items in
the cargo area.
Installing the Cargo Cover1. Slide the cargo cover into the two front corner
brackets until it snaps in
place.
2. Attach the cords to the fixed retainers on the
liftgate.
Removing the Cargo Cover
To remove, disengage the
cords and pull the cover out of
the vehicle.
Cargo Tie-Downs
The vehicle has four cargo
tie-downs in the rear
compartment.
Roof Rack System
The vehicle may be equipped
with side-rails for a roof rack
system. Cargo must be
secured with properly installed
cross rails and other
accessories designed to carry
cargo. These can be
purchased from your dealer.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Storage 107
{Warning
Before driving and
occasionally during a trip,
check that cargo is securely
fastened, rests evenly
between the cross rails and
does not block the vehicle's
lamps or windows. Never
load cargo directly on the
roof of the vehicle or allow
cargo to hang over the rear
or sides of the vehicle.
Never load cargo without
first properly installing cross
rails and other accessories
designed to carry cargo.
Personal injury, death or
damage to the vehicle or
other property may occur.
If driving for a long distance,
on rough roads, or at high
speeds, occasionally stop the
vehicle to make sure the cargo
remains in its place.
Cargo Weight Limits
Do not exceed the maximum
cargo weight for the roof rack
system, including the weight
of the cross rails and any
other accessories used to
carry the cargo such as bike
racks or roof boxes. The
maximum cargo weight that
can be loaded onto the roof
rack system is 100 kg (220 lb)
or the weight designated in
the instructions that came
with the cross rails or other
roof rack accessories,
whichever is less.
{Warning
Never load the roof rack
with more weight than
specified in this section.
Loading cargo on the roof
rack will make the vehicle's
center of gravity higher. To
avoid losing control of the
vehicle, avoid overloading,
high speeds, sudden starts,
sharp turns, sudden braking, (Continued)
Warning (Continued)
or abrupt maneuvers when
carrying cargo on the
roof rack.
The weight of any cargo
carried on the roof rack
system must be included in
calculating the loaded weight
of the vehicle. Do not exceed
the maximum vehicle capacity
when loading the vehicle,
including cargo carried on
the roof rack system and
passengers and cargo carried
in the vehicle. For more
information on vehicle
capacity and loading, see
Vehicle Load Limits 0242.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
108 Instruments and Controls
Instruments and
Controls
Controls
Steering WheelAdjustment . . . . . . . . . . . . . . . . . 109
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . 110
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Windshield Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . 110
Rear Window Wiper/ Washer . . . . . . . . . . . . . . . . . . . . . . 113
Compass . . . . . . . . . . . . . . . . . . . . . . 114
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Power Outlets . . . . . . . . . . . . . . . 115
Wireless Charging . . . . . . . . . . 115
Warning Lights, Gauges,
and Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . 118
Instrument Cluster . . . . . . . . . 119
Speedometer . . . . . . . . . . . . . . . . 122
Odometer . . . . . . . . . . . . . . . . . . . . 122
Trip Odometer . . . . . . . . . . . . . . 122
Tachometer . . . . . . . . . . . . . . . . . . 122
Fuel Gauge . . . . . . . . . . . . . . . . . . . 122 Engine Coolant
Temperature Gauge . . . . . 123
Seat Belt Reminders . . . . . . 123
Airbag Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 125
Charging System Light . . . 126
Malfunction Indicator Lamp (Check Engine
Light) . . . . . . . . . . . . . . . . . . . . . . . . . 126
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . 129
Antilock Brake System (ABS) Warning Light . . . . . 129
Gear Shifting Light . . . . . . . . 130
Performance Shifting Light . . . . . . . . . . . . . . . . . . . . . . . . . 130
All-Wheel-Drive Light . . . . . 130
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 131
Pedestrian Ahead Indicator . . . . . . . . . . . . . . . . . . . . . 131
Traction Off Light . . . . . . . . . . 131 StabiliTrak OFF Light . . . . . 132
Traction Control System
(TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Engine Coolant
Temperature Warning
Light (Uplevel) . . . . . . . . . . . . . 133
Driver Mode Control Light . . . . . . . . . . . . . . . . . . . . . . . . . 133
Tire Pressure Light . . . . . . . 134
Engine Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 134
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 135
Security Light . . . . . . . . . . . . . . . 135
High-Beam On Light . . . . . . 135
Lamps On Reminder . . . . . . 136
Cruise Control Light . . . . . . 136
Door Ajar Light . . . . . . . . . . . . . 136
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 136
Head-Up Display (HUD) . . . 139
Vehicle Messages
Vehicle Messages . . . . . . . . . 143
Engine Power Messages . . . . . . . . . . . . . . . . . . . 143
Vehicle Speed Messages . . . . . . . . . . . . . . . . . . . 144

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 135
remain illuminated. If it does
not come on under either
condition, contact your dealer.
If the light comes on and stays
on when the engine is running,
it may not have adequate oil
pressure. The oil level may be
low or there may be some
other oil system problem. Turn
the engine off when it is safe
to do so and contact your
dealer.
Low Fuel Warning
Light
A Low Fuel Warning Light
near the fuel gauge comes on
briefly when the ignition is
turned on as a check to show
it is working.It also comes on when the fuel
gauge indicator nears empty.
The light turns off when fuel is
added. If it does not, have the
vehicle serviced.
Security Light
The security light should come
on briefly as the engine is
started. If it does not come on,
have the vehicle serviced by
your dealer. If the system is
working normally, the indicator
light turns off.
If the light stays on and the
engine does not start, there
could be a problem with the
theft-deterrent system. See
Immobilizer Operation
033.
High-Beam On Light
This light comes on when the
high-beam headlamps are in
use. See Headlamp High/
Low-Beam Changer 0150.
IntelliBeam Light
This light comes on when the
IntelliBeam system,
if equipped, is enabled. See
Exterior Lamp Controls 0148.