2021 CADILLAC CT4 ignition

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
34 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.
Memory Seats
If equipped, memory seats allow two
drivers to save and recall their unique
seat positions for driving the vehicle,
and a shared exit position for getting
out of the vehicle. Other feature
positions may also be saved, such as
power mirrors and power steering
wheel, if equipped. Memory positions
are linked to remote key 1 or 2 for
automatic memory recalls.Before saving, adjust all available
memory feature positions. Turn the
vehicle on and then press and release
SET; a beep will sound. Then
immediately press and hold 1, 2,
or
B(Exit) until two beeps sound. To
manually recall these positions, press
and hold 1, 2, or
Buntil the saved
position is reached. Follow the
instructions under “Saving Memory
Positions.”
The vehicle identifies the current
driver’s remote key number (1–8). See
Remote Keyless Entry (RKE) System
Operation 07. Only remote keys 1 and
2 can be used for automatic memory
recalls. A Driver Information Center
(DIC) welcome message indicating the
remote key number may display for
the first few ignition cycles following a
remote key change. For Seat Entry
Memory to work properly, save the
positions to the memory button
(1 or 2) matching the remote key
number displayed in the DIC welcome
message. Carry the linked remote key
when entering the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
38 SEATS AND RESTRAINTS
unoccupied, the auto heated or
ventilated seats feature will not
activate that seat. The auto heated
and ventilated seats feature can be
programmed to always be enabled
when the vehicle is on. 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.
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 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.
The remote start heated or ventilated
seats can be enabled or disabled in
the vehicle personalization menu. See
Remote Vehicle Start
013 and
Vehicle Personalization 0117.
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.
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 41
This vehicle has indicators as a
reminder to buckle the seat belts. See
Seat Belt Reminders095.
Why Seat Belts Work
When riding in a vehicle, you travel as
fast as the vehicle does. If the vehicle
stops suddenly, you keep going until
something stops you. It could be the
windshield, the instrument panel,
or the seat belts!
When you wear a seat belt, you and
the vehicle slow down together. There
is more time to stop because you stop
over a longer distance and, when worn
properly, your strongest bones take the forces from the seat belts. That is
why wearing seat belts makes such
good sense.
Questions and Answers About
Seat Belts
Q: Will I be trapped in the vehicle
after a crash if I am wearing a
seat belt?
A: You could be— whether you are
wearing a seat belt or not. Your
chance of being conscious during
and after a crash, so you can
unbuckle and get out, is much
greater if you are belted.
Q: If my vehicle has airbags, why should I have to wear seat belts?
A: Airbags are supplemental systems
only. They work withseat belts —
not instead of them. Whether or
not an airbag is provided, all
occupants still have to buckle up to
get the most protection.
Also, in nearly all states and in all
Canadian provinces, the law
requires wearing seat belts.
Buckle To Drive
If equipped, this feature prevents the
vehicle from shifting out of P (Park)
when the driver seat belt is not
buckled. The Buckle to Drive feature
must be turned ON in the
infotainment system to work. See
Vehicle Personalization 0117 and if
equipped, Teen Driver 0184. If the
engine is running, the driver seat belt
is not buckled, and the brake pedal is
pressed with the vehicle in P (Park), a
message displays in the Driver
Information Center (DIC). Buckle the
driver seat belt to shift out of P (Park).
Shifting from P (Park) will be
prevented once for each ignition cycle.
For some fleet vehicles, the feature is
always ON and it cannot be turned
OFF in the infotainment system.
Shifting from P (Park) will be
prevented each time the above
conditions exist.
On some models, Buckle to Drive may
also prevent shifting out of P (Park) if
a front passenger is unbuckled under
similar conditions. A message displays
in the DIC. Buckle the front passenger
seat belt to shift out of P (Park). This

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
SEATS AND RESTRAINTS 53
{Warning
When an airbag inflates, there may
be dust in the air. This dust could
cause breathing problems for
people with a history of asthma or
other breathing trouble. To avoid
this, everyone in the vehicle should
get out as soon as it is safe to do
so. If you have breathing problems
but cannot get out of the vehicle
after an airbag inflates, then get
fresh air by opening a window or a
door. If you experience breathing
problems following an airbag
deployment, you should seek
medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn
on the interior lamps and hazard
warning flashers, and shut off the fuel
system after the airbags inflate. The
feature may also activate, without
airbag inflation, after an event that
exceeds a predetermined threshold.
After turning the ignition off and then
on again, the fuel system will return
to normal operation; the doors can be locked, the interior lamps can be
turned off, and the hazard warning
flashers can be turned off using the
controls for those features. If any of
these systems are damaged in the
crash they may not operate as normal.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle,
such as the fuel system, brake and
steering systems, etc. Even if the
vehicle appears to be drivable after
a moderate crash, there may be
concealed damage that could make
it difficult to safely operate the
vehicle.
Use caution if you should attempt
to restart the engine after a crash
has occurred.
In many crashes severe enough to
inflate the airbag, windshields are
broken by vehicle deformation.
Additional windshield breakage may
also occur from the front outboard
passenger airbag.
.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
0 410 and
Event Data Recorders 0411.
.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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 11/23/20
70 SEATS AND RESTRAINTS
Securing a Child Restraint
Designed for the LATCH System
{Warning
A child could be seriously injured or
killed in a crash if the child
restraint is not properly attached to
the vehicle using either the LATCH
anchors or the vehicle seat belt.
Follow the instructions that came
with the child restraint and the
instructions in this manual.
{Warning
To reduce the risk of serious or
fatal injuries during a crash, do not
attach more than one child
restraint to a single anchor.
Attaching more than one child
restraint to a single anchor could
cause the anchor or attachment to
come loose or even break during a
crash. A child or others could be
injured.
{Warning
Children can be seriously injured or
strangled if a shoulder belt is
wrapped around their neck. The
shoulder belt can tighten but
cannot be loosened if it is locked.
The shoulder belt locks when it is
pulled all the way out of the
retractor. It unlocks when the
shoulder belt is allowed to go all
the way back into the retractor, but
it cannot do this if it is wrapped
around a child’s neck. If the
shoulder belt is locked and
tightened around a child’s neck, the
only way to loosen the belt is to
cut it.
Buckle any unused seat belts
behind the child restraint so
children cannot reach them. Pull
the shoulder belt all the way out of
the retractor to set the lock, and
tighten the belt behind the child
restraint after the child restraint
has been installed.
{Warning
The power seats will work with the
ignition off. Children could operate
the power seats and be injured.
Never leave children alone in the
vehicle.
Caution
Do not let the LATCH attachments
rub against the vehicle’s seat belts.
This may damage these parts.
If necessary, move buckled seat
belts to avoid rubbing the LATCH
attachments.
If you need to secure more than one
child restraint in the rear seat, see
Where to Put the Restraint 064.
1. Attach and tighten the lower attachments to the lower anchors.
If the child restraint does not have
lower attachments or the desired
seating position does not have
lower anchors, secure the child
restraint with the top tether and
the seat belt. Refer to the child

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
INSTRUMENTS AND CONTROLS 83
With the ignition on or in ACC/
ACCESSORY, move the windshield
wiper lever to select the wiper speed.
HI :Use for fast wipes.
LO : Use for slow wipes.
INT : Use this setting for intermittent
wipes or for Rainsense wipes, when
Rainsense is enabled. For intermittent
wipes, move the lever up to INT, then
turn the
Oband up for more
frequent wipes or down for less
frequent wipes. If Rainsense is
enabled, see “Rainsense”later in this
section.
If the windshield wipers are in use
while driving, the exterior lamps come
on automatically if the exterior lamp
control is in AUTO. The transition
time for the lamps coming on varies
based on wiper speed. See “Lights On
with Wipers ”under Automatic
Headlamp System 0128. OFF :
Use to turn the wipers off.
1X : For a single wipe, briefly move
the wiper lever down. For several
wipes, hold the wiper lever down.
Clear snow and ice from the wiper
blades and windshield before using
them. If frozen to the windshield,
carefully loosen or thaw them.
Damaged blades should be replaced.
See Wiper Blade Replacement 0327.
Heavy snow or ice can overload the
wiper motor.
{Warning
In freezing weather, do not use the
washer until the windshield is
warmed. Otherwise the washer fluid
can form ice on the windshield,
blocking your vision.
{Warning
Before driving the vehicle, always
clear snow and ice from the hood,
windshield, washer nozzles, roof,
and rear of the vehicle, including all (Continued)
Warning (Continued)
lamps and windows. Reduced
visibility from snow and ice buildup
could lead to a crash.
Wiper Parking
If the ignition is turned off while the
wipers are on LO, HI, or INT with
Rainsense disabled, they will
immediately stop.
If the windshield wiper lever is then
moved to OFF before the driver door is
opened or within 10 minutes, the
wipers will restart and move to the
base of the windshield.
If the ignition is turned off while the
wipers are performing wipes due to
windshield washing or Rainsense, the
wipers continue to run until they
reach the base of the windshield.
Rainsense
If equipped with Rainsense, a sensor
near the top center of the windshield
detects the amount of water on the
windshield and controls the frequency
of the windshield wiper. To turn this

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
INSTRUMENTS AND CONTROLS 93
Head-Up Display (HUD) Rotation
Press the thumbwheel while Adjust
Rotation is highlighted to enter Adjust
Mode. Scroll to adjust the angle of the
HUD display. Press the thumbwheel to
confirm and save the setting.
Remote Relearn
If equipped, this feature allows for the
vehicle to relearn remote keys.
See "Programming with Recognized
Remote Keys" underRemote Keyless
Entry (RKE) System Operation 07.
Fuel Range
Fuel Range displays the approximate
distance the vehicle can be driven
without refueling. LOW will be
displayed when the vehicle is low on
fuel. The fuel range estimate is based
on an average of the vehicle's fuel
economy over recent driving history
and the amount of fuel remaining in
the fuel tank.
Software Info
Press the thumbwheel while Software
Info is highlighted to display open
source software information. Reset To Defaults
Allows the driver to reset to default
settings.
Simplify
Press the thumbwheel to enter the
Simplify menu. Simplify Mode allows
certain features of the instrument
cluster to be hidden. These features
include info tiles and interactive areas.
Using the thumbwheel, except to
acknowledge an alert, will exit
Simplify Mode.
The selected features will stay hidden
even after starting and restarting the
vehicle, unless Simplify Mode is
manually canceled.
Speedometer
The speedometer shows the vehicle's
speed in either kilometers per hour
(km/h) or miles per hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and
reset through the Driver Information
Center (DIC). See
Driver Information
Center (DIC) (Base Level) 0107 or
Driver Information Center (DIC)
(Uplevel) 0110.
Tachometer
The tachometer displays the engine
speed in revolutions per minute (rpm).
For vehicles with the Stop/Start
system, when the ignition is on, the
tachometer indicates the vehicle
status. When pointing to AUTO STOP
(Base Level) or the cluster displays
AUTO STOP text (Uplevel), the engine
is off but the vehicle is on and can
move. The engine could auto start at
any time. When the indicator points
to OFF, the vehicle is off.
When the engine is on, the
tachometer will indicate the engine’s
revolutions per minute (rpm). The
tachometer may vary by several

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-14584335) -
2021 - CRC - 12/4/20
94 INSTRUMENTS AND CONTROLS
hundred rpm, during Auto Stop mode,
when the engine is shutting off and
restarting.
Fuel Gauge
Base Level
Uplevel
When the ignition is on, the fuel
gauge indicates about how much fuel
is left in the tank. There is an arrow near the fuel gauge
pointing to the side of the vehicle the
fuel door is on.
When the indicator nears empty, the
low fuel light comes on. There still is
a little fuel left, but the vehicle should
be refueled soon.
Here are three things that some
owners ask about. None of these show
a problem with the fuel gauge:
.It takes a little more, or less fuel to
fill up than the gauge indicated. For
example, the gauge may have
indicated the tank was half full, but
it actually took a little more, or less
than half the tank's capacity to fill
the tank.
.The gauge moves a little while
turning a corner, speeding up or
braking.
.The gauge takes a few seconds to
stabilize after the ignition is turned
on and goes back to empty when
the ignition is turned off.
Engine Coolant
Temperature Gauge (Base
Level)
English