2022 LEXUS RX450h alarm

1273-2. Opening, closing and locking the doors
3
Before driving
devices
• Another vehicle’s electronic key, another electronic key of your vehicle, or a wire-
less key that em its radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or
metallic objects are attached to the rear
window
●When the electronic key is placed near a
battery charger or electronic devices
●When the vehicle is parked in a pay park-
ing spot where radi o waves are emitted
■Note for the entry function
●Even when the electronic key is within the
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win-
dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the back door is
opened.
• The electronic key is on the instrument panel, luggage compar tment, floor, or in
the door pockets or glove box when the
hybrid system is star ted or power switch
modes are changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the ra dio wave reception
conditions, it may be detected by the
antenna outside the cabin and the door
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone.
●Even if the electronic key is not inside the
vehicle, it may be possible to start the
hybrid system if the el ectronic key is near
the window.
●The doors may unlock if a large amount of water splashes on the door handle,
such as in the rain or in a car wash when
the electronic key is
within the effective
range. (The door will automatically be
locked after approximately 60 seconds if
the doors are not opened and closed.)
●If the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor while
wearing gloves may delay or prevent lock
operation. Remove the gloves and touch
the lock sensor again.
●When the lock operation is performed
using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given.
●If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In that case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( P.126)
●If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock all the doors.
●The lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc. Clean the lock sensor and attempt to
operate it again.
●A sudden approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
●If there is another electronic key in the

1283-2. Opening, closing and locking the doors
detection area, it may take slightly longer
to unlock the doors af ter the door handle
is gripped.
●Fingernails may scrape against the door
during operation of the door handle. Be
careful not to injure fingernails or dam-
age the surface of the door.
■When the vehicle is not driven for
extended periods
●To prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
●The smart access syst em with push-but-
ton start can be deactivated in advance.
●Setting the electronic key to battery-sav-
ing mode helps to reduce key battery
depletion. ( P.126)
■To operate the system properly
Make sure to carry the electronic key when
operating the system. Do not get the elec-
tronic key too close to the vehicle when
operating the system from the outside of the
vehicle.
Depending on the position and holding
condition of the electronic key, the key may
not be detected correctly and the system
may not operate properly. (The alarm may
go off accidentally, or the door lock preven-
tion may not operate.)
■If the smart access system with
push-button start does not operate
properly
●If the doors cannot be locked or unlocked
and the back door cannot be opened,
perform the following.
• Bring the electronic key close to the door handle and perform a lock or unlock
operation.
• Bring the electronic key close to the but- ton on the back door ( P.114) and press
the button.
• Use the wireless remote control.
If the doors cannot be locked or unlocked
by perform the above, use the mechanical
key. ( P.439) However, if the mechanical
key is used while the alarm system is set, the
warning will sound. ( P.74)
●If the hybrid system cannot be started,
refer to P.440
■Customization
Some functions can be customized.
( P.472)
■If the smart access system with
push-button start has been deactivated
in a customized setting
●Locking and unlocking the doors: Use
the wireless remote control or mechani-
cal key. ( P.109, 114, 439)
●Starting the hybrid system and changing
power switch modes: P.440
●Stopping the hybrid system: P.184
WARNING
■Caution regarding interference with
electronic devices
●People with implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should keep
away from the smart access system
with push-button start antennas.
(P.125)
The radio waves may affect the opera-
tion of such device s. If necessary, the
entry function can be disabled. Ask
your Lexus dealer for details, such as
the frequency of radio waves and tim-
ing of the emitted radio waves. Then,
consult your doctor to see if you
should disable the entry function.
●Users of any electrical medical device
other than implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibril lators should con-
sult the manufacturer of the device for
information about it s operation under
the influence of radio waves.
Radio waves could have unexpected
effects on the operation of such medi-
cal devices.
Ask your Lexus dealer for details on
disabling the entry function.

1523-5. Opening, closing the windows and moon roof
If the window reverses and cannot be fully
closed or opened, have the vehicle
inspected by your Lexus dealer.
■Door lock linked window operation
●The power windows can be opened and
closed using the mechanical key.*
( P.440)
●The power windows can be opened using
the wireless remote control.* (  P.109)*: These settings must be customized at
your Lexus dealer.
■Alarm
The alarm may be triggered if the alarm is
set and a power window is closed using the
door lock linked power window operation
function. ( P.74)
■Power windows open warning buzzer
A buzzer sounds and a message is shown
on the multi-information display in the
instrument cluster when the power switch is
turned off and the driver’s door is opened
with the power window s open. However, if
the window close suggestion function is on,
this buzzer will not operate.
■Customization
Some functions can be customized.
(  P.472)
WARNING
Observe the following precautions.
Failing to do so may result in death or
serious injury.
■Closing the windows
●The driver is responsible for all the
power window operations, including
the operation for the passengers. In
order to prevent accidental operation,
especially by a child , do not let a child
operate the power windows. It is possi-
ble for children and other passengers
to have body parts caught in the power
window. Also, when riding with a child,
it is recommended to use the window
lock switch. (
P.153)
●Check to make sure that all passen-
gers do not have any part of their body
in a position where it could be caught
when a window is being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the power windows, operate the
power window after checking to make
sure that there is no possibility of any
passenger having any of their body
parts caught in the window. Also do
not let a child operate window by the
wireless remote control or mechanical
key. It is possible for children and other
passengers to get caught in the power
window.
●When exiting the vehicle, turn the
power switch off, carry the key and exit
the vehicle along with the child. There
may be accidental operation, due to
mischief, etc., that ma y possibly lead to
an accident.
■Jam protection function
●Never use any part of your body to
intentionally activate the jam protec-
tion function.
●The jam protection function may not
work if something gets jammed just
before the window is fully closed. Be
careful not to get any part of your body
jammed in the window.
■Catch protection function
●Never use any part of your body or
clothing to intentionally activate the
catch protection function.

1543-5. Opening, closing the windows and moon roof
2Tilts the moon roof down*
*: Lightly press either side of the moon roof
switch to stop the moon roof partway.
■The moon roof can be operated when
The power switch is in ON mode.
■Operating the moon roof after turning
the hybrid system off
The moon roof can be operated for approx-
imately 45 seconds after the power switch
is turned to ACCESSORY mode or turned
off. It cannot, howeve r, be operated once
the driver’s door is opened.
■Jam protection function
If an object is dete cted between the moon
roof and the frame while the moon roof is
closing or tilting down, travel is stopped and
the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed
manually. However, th e sunshade will open
automatically when the moon roof is
opened.
■Door lock linked moon roof operation
●The moon roof can be opened and
closed using the mechanical key.*
( P.440)
●The moon roof can be opened using the
wireless remote control.* ( P.109)
●The alarm may be triggered if the alarm is
set and the moon roof is closed using the
door lock linked moon roof operation
function. ( P.74)
*: These settings must be customized at
your Lexus dealer.
■When the moon roof does not close nor-
mally
Perform the following procedure:
If the moon roof closes but then re-opens
slightly
1 Stop the vehicle.
2 Press and hold the “CLOSE” switch.
*1
The moon roof will close, reopen and pause for approximately 10 seconds.
*2 Then it will
close again, tilt up and pause for approxi-
mately 1 second. Finally, it will tilt down,
open and close.
3 Check to make sure that the moon roof
is completely closed and then release
the switch.
If the moon roof tilts down but then tilts
back up
1 Stop the vehicle.
2 Press and hold the “UP” switch
*1 until
the moon roof moves into the tilt up
position and stops.
3 Release the “UP” switch once and then
press and hold the “UP” switch
again.
*1The moon roof will pause for
approximately 10 seco nds in the tilt up
position.
*2 Then it will adjust slightly and
pause for approximately 1 second.
Finally, it will tilt down, open and close.
4 Check to make sure that the moon roof
is completely closed and then release
the switch.
*1: If the switch is released at the incorrect
time, the procedure w ill have to be per-
formed again from the beginning.
*2: If the switch is released after the above mentioned 10 second pause, automatic
operation will be disabled. In that case,
press and hold the “CLOSE” or “UP”
switch, and the moon roof will tilt up and
pause for approximately 1 second. Then
it will tilt down, open and close. Check
to make sure that the moon roof is com-
pletely closed and then release the
switch.
If the moon roof does not fully close even
after performing the above procedure cor-
rectly, have the vehicle inspected by your
Lexus dealer.
■Moon roof open warning buzzer
A buzzer sounds and a message is shown
on the multi-informat ion display in the
instrument cluster when the power switch is
turned off and the driv er’s door is opened
with the moon roof open.

1573-5. Opening, closing the windows and moon roof
3
Before driving
Closes the panoramic moon roof
Slide and hold the switch forward.
The panoramic moon roof will fully
close automatically.
■The panoramic moon roof can be oper-
ated when
The power switch is in ON mode.
■Operating the panoramic moon roof
after turning the hybrid system off
The panoramic moon roof and electronic
sunshade can be op erated for approxi-
mately 45 seconds after the power switch is
turned to ACCESSORY mode or turned
off. They cannot, ho wever, be operated
once the driver’s door is opened.
■Jam protection function
If an object is dete cted between the pan-
oramic moon roof and the frame in the fol-
lowing situations, travel is stopped and the
panoramic moon roof opens slightly:
●The panoramic moon roof is closing or
tilting down.
●The electronic sunshade is closing.
■Door lock linked panoramic moon roof
operation
●The panoramic moon roof can be
opened and closed using the mechanical
key.
* ( P.440)
●The panoramic moon roof can be
opened using the wireless remote con-
trol.
*(P.109)*: These settings must be customized at
your Lexus dealer.
■Closing both the panoramic moon roof
and electronic sunshade
Slide the switch forward.
The electronic sunshade will close to the
half-open position and pause. The pan-
oramic moon roof will then fully close. Then
the electronic sunshade will fully close.
■When the panoramic moon roof or elec-
tronic sunshade does not close normally
Perform the following procedure:
1 Stop the vehicle.
2 Turn the power switch to ON mode.
3 Slide and hold the switch or
switch forward. Continue pressing the
switch for approximately 10 seconds
after the panoramic moon roof or elec-
tronic sunshade closes and reopens.
The panoramic moon roof and elec-
tronic sunshade will start to close.
*
4Check that the panoramic moon roof
and electronic sunshade are fully closed
and release the switch.
*: If the switch is released at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
If the panoramic moon roof or electronic
sunshade does not fully close even after
performing the above procedure correctly,
have the vehicle inspected by your Lexus
dealer.
■Alarm
The alarm may be triggered if the alarm is
set and the panoramic moon roof is closed
using the door lock linked panoramic moon
roof operation function. ( P.75)
■Panoramic moon roof open warning
buzzer
A buzzer sounds and a message is shown
on the multi-informat ion display in the
instrument cluster when the power switch is
turned off and the driv er’s door is opened
with the panoramic moon roof open.
■Customization
Some functions can be customized.
( P.472)

4417-2. Steps to take in an emergency
7
When trouble arises
When the smart access system with
push-button start is deactivated in
customization setting, the power switch will
turn to ACCESSORY mode.
3Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4 Press the power switch shortly and
firmly.
In the event that the hybrid system still
cannot be started, contact your Lexus
dealer.
■Stopping the hybrid system
Shift the shift lever to P, set the parking
brake, and press the power switch as you
normally do when stopping the hybrid sys-
tem.
■Replacing the key battery
As the above procedure is a temporary
measure, it is recommended that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( P.386)
■Alarm (For Canada)
Using the mechanical key to lock the doors
will not set the alarm system.
If a door is unlocked using the mechanical
key when the alarm system is set, the alarm
may be triggered. ( P.74)
■Changing power switch modes
Release the brake pedal and press the
power switch in step 3 above. The hybrid
system does not start and modes will be
changed each time the switch is pressed.
(  P.185)
If the 12-volt battery is dis-
charged
The following procedures may be
used to start the hybrid system if the
vehicle’s 12-volt battery is dis-
charged.
You can also call your Lexus dealer
or a qualified repair shop.

4427-2. Steps to take in an emergency
If you have a set of jumper (or booster)
cables and a second vehicle with a
12-volt battery, you can jump start your
vehicle by following the steps below.
1Confirm that the electronic key is
being carried.
When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and doors locked.
( P.75)
2 Open the hood ( P.363) and fuse
box cover. 3
Open the exclusive jump starting
terminal cover.
4 Remove the engine cover.
5 Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cab le to on the second vehicle. Then,
Restarting the hybrid system
A
B

503What to do if... (Troubleshooting)
If you cannot release the shift lever by
depressing the brake pedal with the power
switch in ON mode (P.190)
It is locked automatically to prevent
theft of the vehicle. ( P.183)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.153)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode (the
hybrid system is not operating) for a
period of time. ( P.185)
 The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.413)
The parking brake indicator is on
Is the parking brake released? ( P.193)
Depending on the situation, other
types of warning buzzer may also
sound. (P.410, 420) 
Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(P.74)
Do one of the following to stop the
alarms:
 Unlock the doors.
 Turn the power switch to ACCES-
SORY or ON mode, or start the
hybrid system.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.420)
When a warning light turns on or a
warning message is displayed, refer
to P.410, 420.
 Stop the vehicle in a safe place and
replace the flat tire with the spare
tire. ( P.424)
The steering wheel cannot be
turned after the hybrid system is
stopped
The windows do not open or
close by operating the power
window switches
The power switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire