remote start LEXUS ES300h 2022 User Guide

1173-2. Opening, closing and locking the doors and trunk
3
Before driving
QBattery-saving function
The battery-saving function will be acti-
vated in order to prevent the electronic key
battery and the 12-volt battery from being
discharged while the vehicle is not in opera-
tion for a long time.
OIn the following situations, the smart
access system with push-button start may
take some time to unlock the doors.
• The electronic key has been left within
approximately 6 ft. (2 m) of the outside of
the vehicle for 10 minutes or longer.
• The smart access system with push-but-
ton start has not been used for 5 days or
longer.
OIf the smart access system with push-but-
ton start has not been used for 14 days or
longer, the doors cannot be unlocked at
any doors except the driver’s door. In this
case, take hold of the driver’s door han-
dle, or use the wireless remote control or
mechanical key, to unlock the doors.
QTurning an electronic key to battery-
saving mode
OWhen battery-saving mode is set, battery
depletion is minimized by stopping the
electronic key from receiving radio
waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is set, the
smart access system with push-button
start cannot be used. To cancel the func-
tion, press any of the electronic key but-
tons.
OElectronic keys that will not be used for
long periods of time can be set to the bat-
tery-saving mode in advance.
QConditions affecting operation
The smart access system with push-button
start uses weak radio waves. In the follow-
ing situations, the communication between
the electronic key and the vehicle may be
affected, preventing the smart access sys-
tem with push-button start, wireless remote
control and immobilizer system from oper-
ating properly.
(Ways of coping:  P.389)
OWhen the electronic key battery is
depleted
ONear a TV tower, electric power plant,
gas station, radio station, large display,
airport or other facility that generates
strong radio waves or electrical noise
OWhen the electronic key is in contact
with, or is covered by the following metal-
lic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
OWhen other wireless keys (that emit
radio waves) are being used nearby
OWhen carrying the electronic key
together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless communication
device
• Another electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
OIf window tint with a metallic content or
metallic objects are attached to the rear
window
OWhen the electronic key is placed near a
battery charger or electronic devices
OWhen the vehicle is parked in a pay park-
ing spot where radio waves are emitted.
QNotes for the entry function
OEven when the electronic key is within the

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.

1233-3. Adjusting the seats
3
Before driving
QRegistering procedure
Record your driving position to button
“1”, “2” or “3” before performing the
following:
Carry only the key you want to regis-
ter, and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be recorded
properly.
1 Check that the shift lever is in P.
2 Turn the power switch to ON
mode.
3 Recall the driving position that you
want to record.
4 While pressing the recalled button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds.
If the button could not be registered, the
buzzer sounds continuously for approxi-
mately 3 seconds.
QCancelation procedure
1 Carry only the key you want to can-
cel and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be canceled prop-
erly.
2Check that the shift lever is in P.
3 Turn the power switch to ON
mode.
4 While pressing the “SET” button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds twice.
If the button could not be canceled, the
buzzer sounds continuously for approxi-
mately 3 seconds.
QRecall procedure
1 Make sure that the doors are
locked before recalling the driving
position. Carry the electronic key
that has been registered to the driv-
ing position, and then unlock and
open the driver’s door using the
smart access system with push-but-
ton start or wireless remote control.
The driving position will move to the
recorded position (not including the steer-
ing wheel and head-up display [if
equipped]). However, the seat will move to
a position slightly behind the recorded
position in order to make entering the
vehicle easier.
If the driving position is in a position that
has already been recorded, the seat and
outside rear view mirrors will not move.
2Turn the power switch to ACCES-
SORY mode or ON mode, or fas-
ten a seat belt.
The seat, steering wheel and head-up dis-
play (if equipped) will move to the
recorded position.
QRecalling the driving position using the
memory recall function
ODifferent driving positions can be regis-
tered for each electronic key. Therefore,
Registering/cancel ing/recall a
driving position to an electronic
key (including a card key) (mem-
ory recall function)

3286-3. Do-it-yourself maintenance
The 12-volt battery is located on the
right-hand side of the trunk.
QBefore recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
OIf recharging with the 12-volt battery
installed on the vehicle, be sure to dis-
connect the ground cable.
OMake sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
QAfter recharging/reconnecting the 12-
volt battery
OThe hybrid system may not start.
Follow the procedure below to initialize the
system.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
OUnlocking the doors using the smart
access system with push-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
OStart the hybrid system with the power
switch in ACCESSORY mode. The
NOTICE
QDo not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
QDiluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

3476-3. Do-it-yourself maintenance
6
Maintenance and care
QIf the electronic key battery is depleted
The following symptoms may occur:
OThe smart access system with push-but-
ton start and wireless remote control will
not function properly.
OThe operational range will be reduced.
QWhen the card key battery needs to be
replaced (if equipped)
The battery for the card key is available only
at Lexus dealers. Your Lexus dealer can
replace the battery for you.
Prepare the following before replacing
the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
QUse a CR2032 lithium battery
OBatteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
OReplace only with the same or equivalent
type recommended by the manufacturer.
ODispose of used batteries according to
the local laws.
1 Take out the mechanical key.
2 Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
3Remove the depleted battery.
Insert a new battery with the “+” terminal
facing up.
Electronic key battery
Replace the battery with a new one
if it is depleted.
Items to prepare
Replacing the battery

3897-2. Steps to take in an emergency
7
When trouble arises
QWhen the electronic key does not work
properly
OMake sure that the smart access system
with push-button start has not been deac-
tivated using the Remote Touch or at
your Lexus dealer. If it is off, turn the func-
tion on.
OCheck if battery-saving mode is set. If it is
set, cancel the function. (P.117)
Use the mechanical key ( P.102) in
order to perform the following opera-
tions:
QUnlocking the door
1 Pull the driver’s door handle and
insert the mechanical key.
2 Unlock the door.
3 Remove the key, return the handle,
and then pull the handle again.
QLocking the door
1 With the door open, push down the
inside lock button.
2 Close the door.
QOpening the trunk
Turn the mechanical key clockwise to
If the electronic key does not
operate properly
If communication between the
electronic key and vehicle is inter-
rupted ( P.117) or the electronic
key cannot be used because the
battery is depleted, the smart
access system with push-button
start and wireless remote control
cannot be used. In such cases, the
doors and trunk can be opened and
the hybrid system can be started by
following the procedure below.
NOTICE
QIn case of a smart access system with
push-button start malfunction or
other key-related problems
Take your vehicle with all the electronic
keys provided with your vehicle (includ-
ing the card key) to your Lexus dealer as
soon as possible.
Locking and unlocking the
doors, opening the trunk and
using the key linked functions

3937-2. Steps to take in an emergency
7
When trouble arises
6Open and close any of the doors of
your vehicle with the power switch
off.
7 Maintain the engine speed of the
second vehicle and start the hybrid
system of your vehicle by turning
the power switch to ON mode.
8 Make sure the “READY” indicator
comes on. If the indicator does not
come on, contact your Lexus
dealer.
9 Once the vehicle’s hybrid system
has started, remove the jumper
cables in the exact reverse order
from which they were connected.
10 Close the exclusive jump starting
terminal cover, and reinstall the
fuse box cover to its original posi-
tion.
Once the hybrid system starts, have the
vehicle inspected at your Lexus dealer as
soon as possible.
QStarting the hybrid system when the 12-
volt battery is discharged
The hybrid system cannot be started by
push-starting.
QTo prevent 12-volt battery discharge
OTurn off the headlights and the audio sys-
tem while the hybrid system is stopped.
OTurn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
QWhen the 12-volt battery is removed or
discharged
OInformation stored in the ECU is cleared.
When the 12-volt battery is depleted,
have the vehicle inspected at your Lexus
dealer.
OSome systems may require initialization.
(  P.433)
QWhen removing the 12-volt battery ter-
minals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the 12-
volt battery terminals, contact your Lexus
dealer.
QCharging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradually even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the hybrid system may be
unable to start. (The 12-volt battery
recharges automatically while the hybrid
system is operating.)
QWhen recharging or replacing the 12-
volt battery
OIn some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
OThe hybrid system may not start on the
first attempt after the 12-volt battery has
recharged but will start normally after the
second attempt. This is not a malfunction.
OThe power switch mode is memorized by
the vehicle. When the 12-volt battery is
reconnected, the system will return to the
mode it was in before the 12-volt battery
was discharged. Before disconnecting
the 12-volt battery, turn the power switch
off.
If you are unsure what mode the power
switch was in before the 12-volt battery
discharged, be especially careful when
reconnecting the 12-volt battery.
QWhen replacing the 12-volt battery
OUse a 12-volt battery that conforms to
European regulations.
OUse a 12-volt battery that the case size is
same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent
(60Ah) or greater, and performance rat-
ing (CCA) is equivalent (563A) or
greater.

4248-2. Customization
QRear seat reminder (P.106)
QSmart access system with push-button start and wireless remote control
( P.104, 115)
QSmart access system with push-button start ( P.104, 115)
Automatic door unlocking
functionShift lever linked
door unlocking operation
Off
OODriver’s door linked door
unlocking opera- tion
Locking/unlocking of the trunk
when all doors are
locked/unlocked
OnOffO
FunctionDefault settingCustomized set-ting
Rear seat reminder functionOnOffO
FunctionDefault settingCustomized set-ting
Operating signal (Buzzers)5OffOO1 to 7
Operation signal (Emergency
flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
60 seconds
Off
OO30 seconds
120 seconds
Open door warning buzzer
(When locking the vehicle)OnOffO
FunctionDefault settingCustomized set-ting
Smart access system with push-
button startOnOffO
Smart door unlockingDriver’s doorAll the doorsOO
FunctionDefault settingCustomized set-tingABC
ABC
ABC
ABC

Alphabetical index453
RCTA ..............................................................230
Warning message..................................... 374
Distance until next engine oil change .. 78, 84
Do-it-yourself maintenance ......................315
Door courtesy lights ................................... 282
Door lock Doors................................................................ 104
Smart access system with push-button start ................................................................... 115
Wireless remote control..........................102
Doors ................................................................. 104 Automatic door locking and unlocking system ............................................................107
Door glasses ................................................... 131
Door lock........................................................ 104
Open door warning buzzer ..................107
Outside rear view mirrors ......................128
Rear door child-protectors ....................107
Drive distance .................................................. 87
Drive info 1/Drive info 2 .............................. 87
Driver’s seat position memory .................. 121 Driving position memory...........................121
Memory recall function ............................ 123
Drive-Start Control (DSC) Sudden start restraint control................143
Driving............................................................... 138 Break-in tips ...................................................139
Correct driving posture .............................23
Driving Mode Select switch................... 219
Hybrid vehicle driving tips ....................258
Procedures .................................................... 138
Winter drive tips.........................................260
Driving information display ........................ 87
Driving Mode Select switch......................219
Driving range ................................................... 87
Driving support system information display ............................................................................. 89
DSC (Drive-Start Control) Sudden start restraint control................143
Dynamic radar cruise control with full- speed range ................................................ 204 Warning message .......................................213
E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 253
Eco drive mode ..............................................219
EDR (Event data recorder) ........................... 8
Elapsed time ..................................................... 87
Electric motor (traction motor) ................ 59
Electric Power Steering (EPS) Function ..........................................................253
Warning light .............................................. 366
Electronically Controlled Brake System (ECB) ............................................................ 253
Electronic key ................................................ 100 Battery-saving function.............................. 117
If the electronic key does not operate properly ...................................................... 389
Replacing the battery............................... 347
Emergency, in case of If a warning buzzer sounds...................364
If a warning light turns on.......................364
If a warning message is displayed ..... 374
If the 12-volt battery is discharged ..... 391
If the electronic key does not operate properly ...................................................... 389
If the fuel filler door cannot be opened ......................................................................... 388
If the hybrid system will not start ....... 386
If the vehicle is submerged or water on the road is rising ..................................... 359
If you have a flat tire .................................. 379
If you lose your keys ................................ 388
If you think something is wrong.......... 362
If your vehicle becomes stuck ............ 399
If your vehicle has to be stopped in an emergency................................................ 358
If your vehicle needs to be towed ...... 361
If your vehicle overheats ....................... 396
Emergency flashers ....................................358
Energy monitor ............................................... 95
Engine