2022 LEXUS ES300h alarm

1163-2. Opening, closing and locking the doors and trunk
QEffective range (areas within which the
electronic key is detected)When locking or un locking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7
m) of an outside door handle. (Only the
doors detecting the key can be oper-
ated.)
When opening the trunk
The system can be operated when the
electronic key is within about 2.3 ft. (0.7
m) of the trunk release button.
When starting the hybrid system or
changing power switch modes
The system can be operated when the
electronic key is inside the vehicle.
QIf an alarm sounds or a warning message
is displayed
An alarm sounds and warning messages
are displayed on the multi-information dis-
play to protect against unexpected acci-
dents or theft of the vehicle resulting from
erroneous operation. When a warning
message is displayed, take appropriate
measures based on the displayed message.
When only an alarm sounds, circumstances
and correction procedures are as follows.
OWhen an exterior alarm sounds once for
5 seconds
OWhen an interior alarm sounds continu-
ously
QIf “Key Detected in Vehicle” is shown on
the multi-information display
An attempt was made to lock the doors
using the smart access system with push-
button start while the electronic key was still
inside the vehicle. Retrieve the electronic
key from the vehicle and lock the doors
again.
A
B
C
SituationCorrection proce- dure
The trunk was
closed while the
electronic key was
still inside the trunk
and all the doors
were locked.
Retrieve the elec-
tronic key from the
trunk and close the
trunk lid.
An attempt was
made to lock the
vehicle while a door
was open.Close all of the
doors and lock the
doors again.
SituationCorrection proce-dure
The power switch
was turned to
ACCESSORY
mode while the
driver’s door was
open (or the driver’s
door was opened
while the power
switch was in
ACCESSORY
mode).
Turn the power
switch off and close
the driver’s door.
The power switch
was turned off while
the driver’s door
was open.
Close the driver’s
door.

1183-2. Opening, closing and locking the doors and trunk
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 center
of the rear bumper when the trunk is
opened.
• The electronic key is on the instrument
panel, rear package tray or floor, or in the
door pockets or glove box when the
hybrid system is started or power switch
modes are changed.
ODo not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
OAs long as the electronic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only
the doors detecting the electronic key
can be used to unlock the vehicle.
OEven if the electronic key is not inside the
vehicle, it may be possible to start the
hybrid system if the electronic key is near
the window.
OThe doors may unlock or lock 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 doors will auto-
matically be locked after approximately
60 seconds if the doors are not opened
and closed.)
OIf 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.)
OTouching the door lock sensor while
wearing gloves may delay or prevent
lock operation. Remove the gloves and
touch the lock sensor again.
OWhen 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.
OUnlocking the vehicle may take more
time if another electronic key is within the
effective range.
OIf the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In this 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.117)
OIf 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.
OThe 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.
OA 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.
QWhen the vehicle is not driven for
extended periods
OTo prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
OThe smart access system with push-but-
ton start can be deactivated in advance.
OBattery-saving mode can reduce the
power consumption of electronic keys.
( P.117)

1193-2. Opening, closing and locking the doors and trunk
3
Before driving
QTo operate the system properly
OMake sure to carry the electronic key
when operating the system. Do not get
the electronic key too close to the vehicle
when operating the system from the out-
side 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 prevention function may not oper-
ate.)
ODo not leave the electronic key inside the
trunk.
The key confinement prevention function
may not operate, depending on the loca-
tion of the key (close to a spare tire, the
inside edge of the trunk), conditions
(inside a metal bag, close to metallic
objects) and the radio waves in the sur-
rounding area. (P.112)
QIf an electronic key does not work prop-
erly
OIf the doors cannot be locked or
unlocked and the trunk 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 trunk ( P.111) 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.389)
For Canada: However, if the mechanical
key is used while the alarm system is set, the
warning will sound. ( P.68)
OIf the hybrid system cannot be started,
refer to P.390
QCustomization
Settings (e. g. smart access system with
push-button start) can be changed.
(Customizable features: P.421)
If the smart access system with push-button
start has been deactivated in a customized
setting, refer to the explanations for the fol- lowing operations.
OLocking and unlocking the doors and
opening the trunk:
Use the wireless remote control or
mechanical key. (
P.104, 111, 389)
OStarting the hybrid system and changing
power switch modes: P.390
OStopping the hybrid system: P.150
WARNING
QCaution regarding interference with
electronic devices
OPeople 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.115)
The radio waves may affect the opera-
tion of such devices. 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.
OUsers of any electrical medical device
other than implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should con-
sult the manufacturer of the device for
information about its 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 dis-
abling the entry function.

1323-5. Opening and closing the windows and moon roof
inspected by your Lexus dealer.
QDoor lock linked window operation
OThe power windows can be opened and
closed using the mechanical key.*
(  P.390)
OThe power windows can be opened using
the wireless remote control.* ( P.104)
OThe alarm may be triggered if the alarm is
set and the power window is closed using
the door lock linked power window oper-
ation function. ( P.68)
*: These settings must be customized at
your Lexus dealer.
QPower windows open warning buzzer
The buzzer sounds and “Window Open” is
shown on the multi-information display
when the power switch is turned off and the
driver’s door is opened with the power win-
dows open.
QCustomization
Settings (e.g. linked door lock operation)
can be changed.
(Customizable features: P.421)
This function can be used to prevent
children from accidentally opening or
closing a passenger window.
Press the switch.
WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury.
QClosing the windows
OThe 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.132)
OCheck 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.
OWhen 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.
OWhen 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 may possibly lead to
an accident.
QJam protection function
ONever use any part of your body to
intentionally activat e the jam protec-
tion function.
OThe 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.
QCatch protection function
ONever use any part of your body or
clothing to intentionally activate the
catch protection function.
OThe catch protection function may not
work if something gets caught just
before the window is fully opened. Be
careful not to get any part of your body
or clothing caught in the window.
Preventing accidental opera-
tion (window lock switch)

1343-5. Opening and closing the windows and moon roof
*: Lightly press either way of the moon roof switch to stop the moon roof partway.
QThe moon roof can be operated when
The power switch is in ON mode.
QOperating 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, however, be operated once
either front door is opened.
QJam protection function
If an object is detected 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.
QSunshade
The sunshade can be opened and closed
manually. However, the sunshade will open
automatically when the moon roof is
opened.
QDoor lock linked moon roof operation
OThe moon roof can be opened and
closed using the mechanical key.*
(  P.390)
OThe moon roof can be opened using the
wireless remote control.* ( P.104)
OThe 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.68)
*: These settings must be customized at
your Lexus dealer.
QWhen the moon roof does not close nor-
mally
Perform the following procedure:
1 Stop the vehicle.
2 Press and hold the “CLOSE” switch.
*
The moon roof will clos e, reopen and pause
for approximately 10 seconds. Then it will
close again and stop at the completely
closed position. 3
Check to make sure that the moon roof
is completely closed and then 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 moon roof does not fully close even
after performing the above procedure cor-
rectly, have the vehicle inspected by your
Lexus dealer.
QIf the moon roof does not move normally
If the moon roof does not open or close
normally or the automatic opening function
does not operate, perform the following ini-
tialization procedure.
1 Stop the vehicle.
2 Press and hold the “DOWN” switch.
*
The moon roof will stop at the tilt-up posi-
tion. After that, it will op en, close, tilt up, tilt
down, and stop at the fully closed position.
3 Confirm that the moon roof has com-
pletely stopped and release the switch.
*: If you release the switch while the moon
roof is moving, perform the procedure
again from the beginning.
If, after performing the above procedures
correctly, the moon roof still does not open
or close normally or the automatic opening
function does not operate, have the vehicle
inspected by your Lexus dealer.
QMoon roof open warning buzzer
A buzzer sounds and a message is shown
on the multi-information display when the
power switch is turned off and the driver’s
door is opened with the moon roof open.
QCustomization
Settings (e.g. linked door lock operation)
can be changed. (Customizable fea-
tures: P.421)
WARNING
Observe the following precautions.
Failure to do so may cause death or seri-
ous injury.

3917-2. Steps to take in an emergency
7
When trouble arises
QAlarm (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.
QChanging 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.151)
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 using the following procedure.
1 Confirm 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.69)
2 Open the hood ( P.321) and
open the fuse box cover.
If the 12-volt battery is dis-
charged
The following procedures may be
used to start the hybrid system if the
12-volt battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the hybrid system

449What to do if... (Troubleshooting)
In this case, the hybrid system can be
started in a temporary way. ( P.390)
Is the 12-volt battery discharged?
( P.391)
 Is the power switch in ON mode?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON mode
( P.156)
 It is locked automatically to prevent
theft of the vehicle. ( P.149)
 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.132)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode
(hybrid system is not operating) for
a period of time. ( P.152) 
The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.367)
 The parking brake indicator is on
Is the parking brake released? ( P.159)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.364, 374)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.68)
To stop the alarm, turn the power
switch to 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.374)
 When a warning light turns on or a
warning message is displayed, refer
to P.364, 374.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
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

451Alphabetical index
Alphabetical index
A
A/C ................................................................... 270Air conditioning filter ............................... 342
Automatic air conditioning system ... 270
Front seat concentrated airflow mode (S-FLOW)................................................. 276
ABS (Anti-lock Brake System).............. 253 Function .......................................................... 253
Warning light ...............................................366
ACA (Active Cornering Assist) ........... 253
Acoustic vehicle alerting system ...............61
Active Cornering Assist (ACA) ........... 253
Adaptive Variable Suspension system253
AHB (Automatic High Beam) .................166
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................365
Air conditioning filter ................................. 342
Air conditioning system ............................ 270 Air conditioning filter ............................... 342
Automatic air conditioning system ... 270
Front seat concentrated airflow mode (S-FLOW)................................................. 276
Alarm ................................................................... 68 Alarm...................................................................68
Warning buzzer .........................................364
Anchor brackets ..................................... 44, 53
Antennas (smart access system with push- button start) ................................................... 115
Anti-lock Brake System (ABS).............. 253 Function ..........................................................253
Warning light .............................................. 366
Approach warning........................................210
Armrest............................................................ 295
Assist grips ..................................................... 295
Audio system-linked display ...................... 89
Auto Glide Control .................................... 220
Automatic headlight leveling system ....164
Automatic High Beam (AHB) .................166
Automatic light control system................163
Auxiliary box.................................................. 287
Average fuel economy................................. 87
Average vehicle speed ................................ 87
B
Back-up lights Replacing light bulbs................................352
Battery (12-volt battery) ........................... 328 Battery checking ........................................328
If the 12-volt battery is discharged ..... 391
Preparing and checking before winter......................................................................... 260
Warning light .............................................. 365
Battery (traction battery) ............................ 62
Blind Spot Monitor (BSM).........................214
Brake Brake hold ........................................................ 161
Fluid.................................................................. 406
Parking brake ............................................... 159
Regenerative braking .................................60
Warning light ...............................................364
Brake assist .................................................... 253
Break-in tips.....................................................139
Brightness control Instrument panel light control........ 79, 84
BSM (Blind Spot Monitor).........................214