CADILLAC CT4 2023 Service Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
40 Seats and Restraints
Do not have a seatback
reclined if the vehicle is
moving.
To adjust the seatback:
.Tilt the top of the control
rearward to recline.
.Tilt the top of the control
forward to raise.
Lumbar Adjustment
1. To adjust lumbar support,if equipped:
.If equipped, press Up (1)
to move lumbar support
upward.
.Press Rearward (2) to
move lumbar support
rearward.
.If equipped, press
Down (3) to move lumbar
support down.
.Press Forward (4) to
move lumbar support
forward.
Uplevel Lumbar
Adjustment
To adjust uplevel lumbar
support, if equipped:
.Press and release or hold
Feature Select (1) to scroll to
lumbar support on the
infotainment display.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 41
.Press Forward (5) or
Rearward (3) to adjust
lumbar forward or rearward.
.Press Up (2) or Down (4) to
adjust lumbar up or down.
Bolster Support
Adjustment
High Performance SeatShown, Others Similar
Back Bolster Support
To adjust back bolster
support, if equipped:
Press and release or hold
Feature Select (1) to scroll to
bolster support on the infotainment display. Press
Forward (3) or Rearward (2) to
adjust back bolster support
inward or outward.
Cushion Bolster Support
To adjust cushion bolster
support, if equipped:
Press and release or hold
Feature Select (1) to scroll to
bolster support on the
infotainment display. Press
Forward (3) or Rearward (2) to
adjust cushion bolster support
inward or outward.
Massage
If equipped, the ignition must
be on to use the massage
feature.
To turn the massage feature
on or off press the massage
control button. When the
massage feature is turned off,
it will complete the massage
cycle before returning to the
initial position.
Memory Seats
Overview
If equipped, the memory seat
feature allows drivers to save
their unique driving positions

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
42 Seats and Restraints
and a shared exit position. See
“Saving Seating Positions”
later in this section. The saved
positions can be recalled
manually by all drivers, see
“Manually Recalling Seating
Positions”later in this section,
and drivers with remote keys
1 and 2 can also recall them
automatically. See “Auto Seat
Entry Memory Recall” or“Auto
Seat Exit Memory Recall” later
in this section. To enable
automatic recalls, turn on Seat
Entry Memory and/or Seat
Exit Memory. See “Enabling
Automatic Recalls” later in this
section. The memory recalls
may be cancelled at any time
during the recall. See “Cancel
Memory Seating Recalls” later
in this section.
Identifying Driver Number
The vehicle identifies the
current driver by their remote
key number 1–8. The current
remote key number may be
identified by Driver
Information Center (DIC) welcome message,
“You are
driver x for memory recalls.”
This message is displayed the
first few times the vehicle is
turned on when a different
remote key is used. For Seat
Entry Memory to work
properly, save positions to the
1 or 2 memory button
matching the driver number of
this welcome message. To aid
in identifying remote key IDs, it
is recommended to only carry
one remote key when entering
the vehicle. Perform the
following if the welcome
message is not displayed:
1. Move all keys and remote keys away from the
vehicle.
2. Start the vehicle with another remote key. A DIC
welcome message should
display indicating the
driver number of the other
remote key. Turn the
vehicle off and remove the
other key or remote key
from the vehicle. 3. Start the vehicle with the
initial key or remote key.
The DIC welcome message
should display the driver
number of the initial
remote key.
Saving Seating Positions
Read these instructions
completely before saving
memory positions.
To save preferred driving
positions to 1 and 2: 1. Turn the vehicle on or to accessory mode. A DIC
welcome message may
indicate the driver number
of the current remote key.
See “Identifying Driver
Number” previously in this
section.
2. Adjust all available memory features to the desired
driving position.
3. Press and release SET; a beep will sound.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 43
4. Immediately upon releasingSET, press and hold
memory button 1 or
2 matching the current
Driver’s remote key
number until two beeps
sound. If too much time
passes between releasing
SET and pressing 1 or 2,
the two beeps will not
sound indicating memory
position were not saved.
Repeat Steps 3 and 4 to
try again.
5. Repeat Steps 1–4 for the other remote key 1 or 2
using the other 1 or
2 memory button.
It is recommended to save the
preferred driving positions to
both 1 and 2 if you are the only
driver.
To save the common exit
seating position to
Bthat is
used by all drivers for
Manually Recalling Seating
Positions and Auto Seat Exit Memory Recall features,
repeat Steps 1–4 using
B, the
exit button.
Manually Recalling Seating
Positions
Press and hold 1, 2, or
B
button until the recall is
complete, to recall the
positions previously saved to
that button.
Manual Memory recall
movement for 1, 2 or
B
buttons may be initiated and
will complete to the saved
memory position if the vehicle
is in or out of P (Park).
If manual transmission
equipped, Manual Memory
recall movement for 1, 2, or
B
buttons may be initiated and
will complete to the saved
memory position if the vehicle
parking brake is set or
released. Enabling Automatic Recalls
.Seat Entry Memory moves
the driver seat to the
selected 1 or 2 position when
the vehicle is started. Select
Settings > Vehicle > Seating
Position > Seat Entry
Memory > ON or OFF. See
“Auto Seat Entry Memory
Recall”
later in this section.
.Seat Exit Memory moves the
driver seat to the preferred
exit position of the
Bbutton
when the vehicle is turned
off and the door is opened.
Select Settings > Vehicle >
Seating Position > Seat Exit
Memory > Select ON or OFF.
See “Auto Seat Exit Memory
Recall” later in this section.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
44 Seats and Restraints
Auto Seat Entry Memory
Recall
Seat Entry Memory will
automatically begin movement
to the seating positions of the
1 or 2 button corresponding to
the driver’s remote key
number 1 or 2 detected by the
vehicle when:
.The vehicle is turned ON.
.Seating positions have been
previously saved to the
same 1 or 2 button. See
“Saving Seating Positions”
previously in this section.
.Seat Entry Memory is
enabled. See“Enabling
Automatic Recalls”
previously in this section.
.The shift lever is in P (Park).
.If manual transmission
equipped, the parking brake
must be set.
Seat Entry Memory Recall will
continue if the vehicle is
shifted out of P (Park) prior to
reaching the saved memory
position. If manual transmission
equipped, Seat Entry Memory
Recall will continue if the
parking brake is released prior
to reaching the saved memory
position.
If the saved memory seat
position does not
automatically recall, verify the
recall is enabled. See
“Enabling
Automatic Recalls” previously
in this section.
If the memory seat recalls to
the wrong position, the
driver’s remote key number 1
or 2 may not match the
memory button number
positions they were saved to.
Try the other remote key or
try saving the positions to the
other 1 or 2 memory button.
See “Saving Seating Positions”
previously in this section.
Automatic Seat Entry Memory
recalls are only available for
driver’s remote key numbers
1 and 2. Remote key 3–8 will
not provide Seat Entry
Memory recalls. Auto Seat Exit Memory
Recall
Seat Exit Memory will begin
movement to the seating
position of the
B
button when:
.The vehicle is turned off and
the driver door is open or
opened within a short time.
.A seating position has been
previously been saved to the
Bmemory button. See
“Saving Seating Positions”
previously in this section.
.Seat Exit Memory is enabled.
See “Enabling Automatic
Recalls” previously in this
section.
.The shift lever is in P (Park).
.If manual transmission
equipped, the parking brake
must be set.
Seat Exit Memory recall will
continue if the vehicle is
shifted out of P (Park) prior to
reaching the saved memory
position.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 45
If manual transmission
equipped, Seat Exit Memory
will continue if the parking
brake is released prior to
reaching the save memory
position.
Seat Exit Memory is not linked
to the driver’s remote key. The
seating position saved to
Bis
used for all drivers.
Cancel Memory Seating
Recalls
.During any memory recall:
Press a power seat control
Press SET memory button
.During Manual memory
recall:
Release 1, 2, or
Bmemory
button
.During Auto Seat Entry
Memory Recall:
Turn vehicle off
Press SET, 1, 2, or
B
memory buttons
.During Auto Seat Exit
Memory Recall: Press SET, 1, 2, or
B
memory buttons
Obstructions
If something has blocked the
seat while recalling a memory
position, the recall may stop.
Remove the obstruction and
try the recall again. If the
memory position still does not
recall, see your dealer.
Heated and
Ventilated Front
Seats
{Warning
If temperature change or
pain to the skin cannot be
felt, the seat heater may
cause burns. To reduce the
risk of burns, use care when
using the seat heater,
especially for long periods of
time. Do not place anything
on the seat that insulates
against heat, such as a (Continued)
Warning (Continued)
blanket, cushion, cover,
or similar item. This may
cause the seat heater to
overheat. An overheated
seat heater may cause a
burn or may damage
the seat.
If equipped, the buttons are
near the climate controls on
the center stack. To operate,
the engine must be running.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
46 Seats and Restraints
PressJorzto heat the
driver or passenger seat
cushion and seatback.
Press
Cor{to ventilate the
driver or passenger seat.
Press the button once for the
highest setting. With each
press of the button, the seat
will change to the next lower
setting, and then to the off
setting. The indicator lights
next to the buttons indicate
three for the highest setting
and one for the lowest. If the
front heated seats are on
high, the level may
automatically be lowered after
approximately 30 minutes.
When this feature is off, the
heated and ventilated seat
symbols on the buttons are
white. A ventilated seat has a
fan that pulls air through the
seat. The air is not cooled.
When a heated seat is turned
on, the symbol turns red.
When a ventilated seat is
turned on, the symbol
turns blue. The passenger seat may take
longer to heat up.
Auto Heated and Ventilated
Seats
If the vehicle is equipped with
auto heated or ventilated
seats, and the engine is
running, this feature will
automatically activate the
heated or ventilated seats at
the level required by the
vehicle's interior temperature.
The active high, medium, low,
or off heated or ventilated
seat level will be indicated by
the manual heated and
ventilated seat buttons on the
center stack. Use the manual
heated and ventilated seat
buttons on the center stack to
turn auto heated or ventilated
seats off. If the passenger
seat is unoccupied, the auto
heated or ventilated seats
feature will not activate that
seat. If equipped with a heated
steering wheel, the auto
heated steering wheel
activation will follow the
heated seat auto activation
and the heated wheel
indicator will follow the state
of the steering wheel heat.
To enable or disable auto
heated or ventilated seats,
select Settings > Vehicle >
Climate and Air Quality >
Auto Cooled or Auto Heated
Seats > ON or OFF.
Remote Start Heated and
Ventilated Seats
If equipped, the heated seats
will turn on automatically
during a remote start if it is
cold outside and the ventilated
seats will turn on automatically
if it is hot outside. If equipped,
the heated steering wheel will
turn on automatically during a
remote start if it is cold
outside. The heated and
ventilated seat indicators and
heated steering wheel
indicator may come on during
this operation.
The heated and ventilated
seats and heated steering
wheel may cancel when the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 47
vehicle is started. These
features can be manually
selected after the ignition is
turned on.
The temperature performance
of an unoccupied seat may be
reduced. This is normal.
To enable or disable remote
start heated or ventilated
seats, select Settings >
Vehicle > Remote Lock,
Unlock, and Start > Remote
Start Auto Heat Seats or
Remote Start Auto Cool
Seats > ON or OFF. See
Remote Vehicle Start016.
Rear Seats
Rear Seat Reminder
If equipped, the message
REAR SEAT REMINDER LOOK
IN REAR SEAT displays under
certain conditions indicating
there may be an item or
passenger in the rear seat.
Check before exiting the
vehicle. This feature will activate when
a second row door is opened
while the vehicle is on or up to
10 minutes before the vehicle
is turned on. There will be an
alert when the vehicle is
turned off. The alert does not
directly detect objects in the
rear seat; instead, under
certain conditions, it detects
when a rear door is opened
and closed, indicating that
there may be something in the
rear seat.
The feature is active only once
each time the vehicle is turned
on and off, and will require
reactivation by opening and
closing the second row doors.
There may be an alert even
when there is nothing in the
rear seat; for example, if a
child entered the vehicle
through the rear door and left
the vehicle without the vehicle
being shut off.
The feature can be turned on
or off. Select Settings >
Vehicle > Rear Seat
Reminder > ON or OFF.
Folding the Seatback
Either side of the seatback
can be folded for more cargo
space. Fold a seatback only
when the vehicle is not
moving.
Caution
Folding a rear seat with the
seat belts still fastened may
cause damage to the seat or
the seat belts. Always
unbuckle the seat belts and
return them to their normal
stowed position before
folding a rear seat.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
48 Seats and Restraints
To fold the seatback:
1. Disconnect the rear seatbelt mini-latch using a key
in the slot on the
mini-buckle, and let the belt
retract.
2. Pull the lever on top of theseatback toward you to
unlock the seatback.
A red tab near the
seatback lever raises when
the seatback is unlocked.
3. Fold the seatback forward. Repeat Steps 2 and 3 to
fold the other seatback,
if desired.
Raising the Seatback
{Warning
If either seatback is not
locked, it could move
forward in a sudden stop or
crash. That could cause
injury to the person sitting
there. Always push and pull
on the seatbacks to be sure
they are locked.
{Warning
A seat belt that is
improperly routed, not
properly attached,
or twisted will not provide
the protection needed in a
crash. The person wearing
the belt could be seriously
injured. After raising the rear
seatback, always check to
be sure that the seat belts
are properly routed and
attached, and are not
twisted.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Seats and Restraints 49
To raise a seatback:1. Lift the seatback up. Make sure the center seat belt
and latch do not get
trapped behind the seat.
Push the seatback
rearward to lock it in place.
A red tab near the
seatback lever retracts
when the seatback is
locked in place.
2. Push and pull the top of the seatback to be sure it
is locked into position.
3. Reconnect the center seat belt mini-latch to the
mini-buckle. Do not let the
belt twist.
4. Pull on the center seat belt to make sure the mini-latch
is secure.
5. Repeat the steps to raise the other seatback,
if necessary.
When the seat is not in use, it
should be kept in the upright,
locked position.Seat Belts
This section describes how to
use seat belts properly, and
some things not to do.
{Warning
Do not let anyone ride
where a seat belt cannot be
worn properly. In a crash,
if you or your passenger(s)
are not wearing seat belts,
injuries can be much worse
than if you are wearing seat
belts. You can be seriously
injured or killed by hitting
things inside the vehicle
harder or by being ejected
from the vehicle. In addition,
anyone who is not buckled
up can strike other
passengers in the vehicle.
It is extremely dangerous to
ride in a cargo area, inside or
outside of a vehicle. In a
collision, passengers riding
in these areas are more (Continued)
Warning (Continued)
likely to be seriously injured
or killed. Do not allow
passengers to ride in any
area of the vehicle that is
not equipped with seats and
seat belts.
Always wear a seat belt, and
check that all passenger(s)
are restrained properly too.
This vehicle has indicators as
a reminder to buckle the seat
belts. See Seat Belt
Reminders 0115.