keyless entry CADILLAC XT4 2021 Owner's Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
6 KEYS, DOORS, AND WINDOWS
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . 14
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Door Locks . . . . . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Automatic Door Locks . . . . . . . . . . . . 18
Lockout Protection . . . . . . . . . . . . . . . . 18
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 19
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . 25
Vehicle Alarm System . . . . . . . . . . . . . 25
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 27
Immobilizer Operation . . . . . . . . . . . . 27
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 28
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 28
Folding Mirrors . . . . . . . . . . . . . . . . . . . . 28 Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 29
Automatic Dimming Mirror . . . . . . . 29
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 29
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 30
Manual Rearview Mirror . . . . . . . . . . 30
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Rear Camera Mirror . . . . . . . . . . . . . . . 30
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Windows . . . . . . . . . . . . . . . . . . . . 32
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with a
Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
KEYS, DOORS, AND WINDOWS 7
The key inside the Remote Keyless
Entry (RKE) transmitter can be used
for all locks.
To remove the key, press the button
near the bottom of the transmitter,
and pull the key out. Never pull the
key out without pressing the button.
If it becomes difficult to turn the key,
inspect the key blade for debris.
See your dealer if a new key is needed.
Contact Roadside Service if locked out
of the vehicle. SeeRoadside Service
0 378.
With an active OnStar or connected
service plan, an OnStar Advisor may
remotely unlock the vehicle. See
OnStar Overview 0387.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement 0383.
If there is a decrease in the Remote
Keyless Entry (RKE) operating range:
.Check the distance. The transmitter
may be too far from the vehicle.
.Check the location. Other vehicles
or objects may be blocking the
signal.
.Check the transmitter's battery. See
“Battery Replacement ”later in this
section.
.If the transmitter is still not
working correctly, see your dealer or
a qualified technician for service.
Remote Keyless Entry
(RKE) System Operation
The Keyless Access system allows for
vehicle entry when the transmitter is
within 1 m (3 ft). See “Keyless Access
Operation ”following.
The RKE transmitter functions may
work up to 60 m (197 ft) away from
the vehicle.
Other conditions can impact the
performance of the transmitter. See
Remote Keyless Entry (RKE) System
0 7.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
14 KEYS, DOORS, AND WINDOWS
3. Remove the old battery. Do not usea metal object.
4. Insert the new battery on the back housing, positive side facing down.
Replace with a CR2032 or
equivalent battery.
5. Align the front and back housing then snap the transmitter together.
6. Reinsert the key.
Remote Vehicle Start
This feature allows the engine to be
started from outside of the vehicle.
/: This button is on the RKE
transmitter for remote start. The climate control system will
determine the best mode and
temperature setting for operation
during the remote start. Once the
vehicle is started with the ENGINE
START/STOP button, the climate
control system will begin to operate at
the last customer selected operating
mode and temperature. The rear defog
may come on during remote start
based on cold ambient conditions. The
rear fog indicator light does not come
on during remote start.
If the vehicle has auto heated or
ventilated seats they may come on
during a remote start. See
Heated and
Ventilated Front Seats 043.
Laws in some local communities may
restrict the use of remote starters. For
example, some laws may require a
person using remote start to have the
vehicle in view. Check local
regulations for any requirements.
Do not use remote start if the vehicle
is low on fuel. The vehicle may run
out of fuel. Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE) System
0
7.
Starting the Engine Using Remote
Start
1. Press and release
Qon the RKE
transmitter.
2. Immediately press and hold
/for
at least four seconds or until the
turn signal lamps flash. The turn
signal lamps flashing confirms the
request to remote start the vehicle
has been received.
During the remote start the doors
will be locked and the parking
lamps will remain on as long as the
engine is running.
The engine will shut off after
15 minutes unless a time extension
is done or the ignition is turned on.
3. With the RKE transmitter in the vehicle, press the brake pedal and
start the vehicle to drive.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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16 KEYS, DOORS, AND WINDOWS
Warning (Continued)
vehicle. Locking the doors can
help prevent this from
happening.
To lock/unlock the doors from outside
the vehicle:
.PressQorKon the RKE
transmitter. See Remote Keyless
Entry (RKE) System Operation 07.
.Use the key in the key lock cylinder
in the driver door. The key lock
cylinder is covered with a cap.
To lock/unlock the doors from inside
the vehicle:
.PressQorKon the power door
lock switch. See Power Door Locks
0 18.
.Push down on the door lock knob to
lock a door.
.Pull the door handle once to unlock
it. Pull the door handle again to
unlatch it. Keyless Access
The RKE transmitter must be within
1 m (3 ft) of the door or liftgate being
opened. Press the button on the door
handle to open. See
“Keyless Access”
in Remote Keyless Entry (RKE) System
Operation 07. Driver Door Key Lock Cylinder
Access (In Case of Dead Battery)To access the driver door key lock
cylinder:
1. Pull the door handle (1) to the open position and hold it open
until the cap removal is complete.
2. Insert the key into the slot (3) on the bottom of the cap (2) and lift
the key upward.
3. Move the cap (2) rearward and remove.
4. Use the key in the cylinder.
To replace the cap:

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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KEYS, DOORS, AND WINDOWS 27
How to Detect a Tamper
Condition
IfKis pressed and the horn chirps
and the lights flash three times, the
alarm was activated while the alarm
system was armed.
If the alarm system has been
activated, a message will appear on
the DIC.
Immobilizer
See Radio Frequency Statement 0383.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when the ignition is on or in
ACC/ACCESSORY and a valid
transmitter is present in the vehicle.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched RKE
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, on, off), and
the RKE transmitter appears to be undamaged, try another transmitter.
Or, you may try placing the
transmitter in the front cupholder
located in the center console. See
Remote Keyless Entry (RKE) System
Operation
07.
If the ignition mode will not change
with the other transmitter or in the
front cupholder, your vehicle needs
service. If the ignition does change
modes, the first transmitter may be
faulty. See your dealer who can service
the theft-deterrent system and have a
new RKE transmitter programmed to
the vehicle.
It is possible for the immobilizer
system to learn new or replacement
RKE transmitters. Up to eight
transmitters can be programmed for
the vehicle. To program additional
transmitters, see “Programming
Transmitters to the Vehicle ”under
Remote Keyless Entry (RKE) System
Operation 07.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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KEYS, DOORS, AND WINDOWS 29
Power Folding Mirrors
If equipped, press to power fold the
mirrors. Press again to unfold.
Resetting the Power Folding
Mirrors
Reset the power folding mirrors if:
.The mirrors are accidentally
obstructed while folding.
.They are accidentally manually
folded/unfolded.
.The mirrors do not stay in the
unfolded position.
.The mirrors vibrate at normal
driving speeds.Fold and unfold the mirrors one time
using the mirror controls to reset
them to their normal position. A noise
may be heard during the resetting of
the power folding mirrors. This sound
is normal after a manual folding
operation.
Remote Mirror Folding
If equipped, press and holdQon the
RKE transmitter for approximately
one second to automatically fold the
exterior mirrors. Press and hold
Kon
the RKE transmitter for approximately
one second to unfold. See Remote
Keyless Entry (RKE) System Operation
0 7.
This feature is turned on or off
through vehicle personalization. See
Vehicle Personalization 0120.
Heated Mirrors
K:Press to heat the mirrors.
See “Rear Window Defogger” under
Dual Automatic Climate Control System
0 197.
Automatic Dimming Mirror
If the vehicle has the automatic
dimming mirror, the driver outside
mirror automatically adjusts for the
glare of headlamps behind you.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors
and memory seats, the passenger and/
or driver mirror tilts to a preselected
position when the vehicle is in
R (Reverse). This allows the curb to be
seen when parallel parking.
The mirror(s) may move from their
tilted position when:
.The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about 30 seconds.
.The vehicle is turned off.
.The vehicle is driven in R (Reverse)
above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0120.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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32 KEYS, DOORS, AND WINDOWS
See your dealer for service if a blue
screen and
3are displayed in the
mirror, and the display shuts off. Also,
push the tab as indicated to return to
the automatic dimming mode.
The Rear Camera Mirror may not work
properly or display a clear image if:
.There is glare from the sun or
headlamps. This may obstruct
objects from view. If needed, push
the tab to turn off the display.
.Dirt, snow, or other debris blocks
the camera lens. Clean the lens with
a soft damp cloth, or if equipped,
with the Rear Camera Washer. See
Rear Window Wiper/Washer 094.
.The camera’s mounting on the
vehicle has been damaged, and/or
the position or the mounting angle
of the camera has changed.
Windows
{
Warning
Never leave a child, a helpless adult,
or a pet alone in a vehicle,
especially with the windows closed
in warm or hot weather. They can
be overcome by the extreme heat
and suffer permanent injuries or
even death from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the sound,
open either a front window or the
sunroof, if equipped.
Power Windows
{Warning
Children could be seriously injured
or killed if caught in the path of a
closing window. Never leave the
Remote Keyless Entry (RKE)
transmitter in a vehicle with
children. When there are children in
the rear seat, use the window
lockout switch to prevent operation
of the windows. See Keys06.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
SEATS AND RESTRAINTS 41
.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 RKE transmitter 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 RKE transmitter number (1–
8). See Remote Keyless Entry (RKE)
System Operation 07. Only RKE
transmitters 1 and 2 can be used for
automatic memory recalls. A Driver
Information Center (DIC) welcome
message indicating the transmitter
number may display for the first few
ignition cycles following a transmitter
change. For Seat Entry Memory to
work properly, save the positions to
the memory button (1 or 2) matching
the RKE transmitter number displayed
in the DIC welcome message. Carry
the linked RKE transmitter when
entering the vehicle. Vehicle Personalization Settings
.To have the Seat Entry Memory
movement begin when the vehicle is
started, select the Settings menu,
then Vehicle, then Seating Position,
and then Seat Entry Memory. Select
On or Off. See
“Seat Entry Memory ”
later in this section.
.To begin Seat Exit Memory
movement when the vehicle is
turned off and the driver door is
opened, or when the vehicle is
turned off with the driver door
already opened, select the Settings
menu, then Vehicle, then Seating
Position, and then Seat Exit
Memory. Select On or Off. See “Seat
Exit Memory” later in this section.
.SeeVehicle Personalization 0120 for
additional setting information.
Identifying Driver Number
To identify the driver number: 1. Move your RKE transmitter away from the vehicle.
2. Start the vehicle with another key or RKE transmitter. The DIC should
display the driver number for the

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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42 SEATS AND RESTRAINTS
other RKE transmitter. Turn the
vehicle off and remove the key or
RKE transmitter from the vehicle.
3. Start the vehicle with the initial key or RKE transmitter. The DIC
should display the driver number
of your RKE transmitter.
Saving Memory Positions
Read these instructions completely
before saving memory positions.
To save preferred driving positions
1 and 2: 1. Turn the vehicle on or to ACC/ ACCESSORY.
A DIC welcome message may
indicate driver number 1 or 2.
2. Adjust all available memory features to the desired driving
position.
3. Press and release SET; a beep will sound.
4. Immediately press and hold the 1 or 2 memory button matching the
above DIC welcome message until
two beeps sound. If too much time passes between
releasing SET and pressing 1, the
memory position will not be saved
and two beeps will not sound.
Repeat Steps 3 and 4.
1 or 2 corresponds to the driver
number. See
“Identifying Driver
Number” previously in this section.
5. Repeat Steps 1–4 for a second driver using 1 or 2.
To save the position for
Band Seat
Exit Memory features, repeat Steps 1–
4 using
B. This saves the position for
getting out of the vehicle.
Save preferred memory feature
positions to both 1 and 2 if you are
the only driver.
Manually Recalling Memory
Positions
Press and hold 1, 2, or
Bto recall the
previously saved memory positions if
you are driver 1 or 2 identified in the
DIC welcome message.
To stop Manual Memory recall
movement, release 1, 2, or
Bor press
any of the following controls:
.Power seat
.Memory SET
.Power mirror, with the driver or
passenger side mirror selected
.Power steering wheel, if equipped
Manual Memory recall movement for
1, 2, or
Bbuttons may be initiated
and may complete to the saved
memory position if the vehicle is in or
out of P (Park).
Seat Entry Memory
The vehicle identifies the number of
the current driver’s RKE transmitter
(1–8). See Remote Keyless Entry (RKE)
System Operation 07. If the RKE
transmitter is 1 or 2, and Seat Entry
Memory is enabled in vehicle
personalization, the positions saved to
the same memory button number 1 or
2 are automatically recalled when the
vehicle is turned on, or turned from
off to ACC/ACCESSORY. RKE
transmitters 3–8 will not provide
automatic memory recalls.
To turn Seat Entry Memory on or off,
see “Vehicle Personalization Settings”
previously in this section and Vehicle
Personalization 0120.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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INSTRUMENTS AND CONTROLS 123
vehicle is shifted into R (Reverse) to
improve visibility of the ground near
the rear wheels. They may move from
their tilted position when the vehicle
is shifted out of R (Reverse) or turned
off. SeeReverse Tilt Mirrors 029.
Touch Off, On - Driver and Passenger,
On - Driver, or On - Passenger.
Remote Mirror Folding
When on, the outside mirrors will
automatically fold or unfold when the
Remote Keyless Entry (RKE)
transmitter
QorKbutton is pressed
and held. See Folding Mirrors 028.
Touch Off or On.
Rain Sense Wipers
This setting automatically turns on
the wipers when moisture is detected
and the wiper switch is in
intermittent mode.
Touch Disabled or Enabled.
Auto Wipe in Reverse Gear
When on and the front wiper is on,
the rear wiper will automatically
activate when the vehicle is shifted to
R (Reverse). Select Off or On.
Hands Free Liftgate Control
The liftgate may be operated with a
kicking motion under the left corner
of the rear bumper. See
Liftgate019.
Select Off, On-Open and Close,
or On-Open Only.
Lighting
Touch and the following may display:
.Vehicle Locator Lights
.Exit Lighting
Vehicle Locator Lights
This setting flashes the headlamps of
your vehicle when you press
Kon the
Remote Keyless Entry (RKE)
transmitter.
Touch Off or On.
Exit Lighting
This setting specifies how long the
headlamps stay on after the vehicle is
turned off and exited.
Touch Off, 30 Seconds, 60 Seconds,
or 120 Seconds.
Power Door Locks
Touch and the following may display:
.Open Door Anti Lock Out
.Auto Door Unlock
.Delayed Door Lock
Open Door Anti Lock Out
This setting prevents the driver door
from locking when the door is open.
If this setting is on, the Delayed Door
Lock menu will not be available.
Touch Off or On.
Auto Door Unlock
This setting allows selection of which
doors will automatically unlock when
the vehicle is shifted into P (Park).
Touch Off, All Doors, or Driver Door.
Delayed Door Lock
This setting delays the locking of the
vehicle’s doors.
Touch Off or On.
Remote Lock, Unlock, and Start
Touch and the following may display:
.Remote Unlock Light Feedback
.Remote Lock Feedback