key LEXUS IS350 2022 User Guide

873-1. Key information
3
Before driving
●As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electrical appliances that
produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■Replacing the battery
P.308
■Confirmation of the number of regis-
tered keys
The number of keys al ready registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for long periods of time.
●Do not get the keys wet or wash them
in an ultrasonic washer etc.
●Do not attach meta llic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemb le the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers,
or medical electrical equipment, such
as low-frequency therapy equipment.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric appliances within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key-rela ted problems
P.351
■When an electronic key is lost
P.350
■Handling the card key
●Do not apply excess force when insert-
ing the mechanical key into the card
key. Doing so may damage the card
key.
●If the battery or card key terminals get
wet, the battery may corrode.
If the key is dropped into water, or if
drinking water etc. is spilled on the key,
immediately remove the battery cover
and wipe the battery and terminals. (To
remove the battery cover, lightly grasp
and pull it.) If the battery is corroded,
have your Lexus dealer replace the
battery.
●Do not crush the battery cover or use
a screwdriver to remove the battery
cover.
Forcibly removing the battery cover
may bend or damage the key.
●If the battery cover is frequently
removed, the battery cover may
become loose.

883-1. Key information
Locks the doors (P.90)
Unlocks the doors ( P.90)
Opens the windows and moon
roof
* (  P.90)
Opens the trunk ( P.95)
Sounds the alarm
*: This setting must be customized at your
Lexus dealer.
■Theft deterrent panic mode
When is pressed for longer than
about one second, an alarm will sound intermittently and the vehicle lights will flash
to deter any person from trying to break
into or damage your vehicle.
To stop the alarm, pr
ess any button on the
electronic key.
To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be inserted in
one direction, as the key only has grooves
on one side. If the key cannot be inserted in
a lock cylinder, turn it over and re-attempt
to insert it.
After using the mechanical key, store it in
the electronic key. Carry the mechanical
key together with the electronic key. If the
electronic key battery is depleted or the
entry function does not operate properly,
you will need the mechanical key.
( P.351)
NOTICE
●When installing the battery, make sure
to check the direction of the battery.
Installing the battery in the wrong
direction may cause the battery to
deplete rapidly.
●The surface of the card key may be
damaged, or its coating may peel off in
the following situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.
Wireless remote control
A
B
C
D
E
Using the mechanical key

893-1. Key information
3
Before driving
■When required to leave the vehicle’s
key with a parking attendant
Set the luggage security system (P.96) on
and lock the glove box ( P.256) as cir-
cumstances demand.
Remove the mechanical key for your own
use and provide the attendant with the elec-
tronic key only.
■If you lose your mechanical keys
P.350
■If a wrong key is used
The key cylinder rotates freely to isolate
inside mechanism.

903-2. Opening, closing and locking the doors and trunk
3-2.Opening, closing and locking the doors and trunk
■Smart access system with
push-button start
Carry the electronic key to enable this
function.
1 Grip the driver’s door handle to
unlock the door. Grip the passen-
ger’s front door handle to unlock all
the doors.
*
Make sure to touch the sensor on the back
of the handle.
The doors cannot be unlocked for 3 sec-
onds after the doors are locked.
*: The door unlock settings can be
changed.
2 Touch the lock sensor (indentation
on the upper part of the front door
handle) to lock all the doors.
Check that the door is securely locked.
■Wireless remote control
1 Locks all the doors
Check that the door is securely locked.
2Unlocks all the doors
Pressing the button unlocks the driver’s
door. Pressing the button again within 5
seconds unlocks the other door.
Press and hold to open the windows and
moon roof.
*
*
: This setting must be customized at your Lexus dealer.
■Switching the door unlock function
It is possible to set which doors the entry
function unlocks using the wireless remote
control.
1 Turn the engine switch off.
2 When the indicator light on the key sur-
face is not on, press and hold ,
or for approximately 5
seconds while pre ssing and holding
.
The setting changes each time an operation
is performed, as shown below. (When
changing the setting continuously, release
the buttons, wait for at least 5 seconds, and
repeat step 2 .)
Doors
Unlocking and locking the doors
from the outside

913-2. Opening, closing and locking the doors and trunk
3
Before driving
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. ( P.61)
■Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, all the doors are unlocked.
Depending on the force of the impact or the
type of accident, however, the system may
not operate.
■Operation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocke d. (Locked: once;
Unlocked: twice)
A buzzer sounds to indicate that the win-
dows and moon roof are operating.
■Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked, the security feature automatically locks the
vehicle again.
■Welcome light illumination control
The front position, tail and license plate
lights automatically turn on at night when
the doors are unlocked using the entry
function or wireless remote control if the
light switch is in the “AUTO” position.
■When the doors cannot be locked by the
lock sensor on the upper part of the
door handle
If the door will not lock even when the top-
side sensor area is touched, try touching
both the topside and underside sensor
areas at the same time.
■Door lock buzzer
If an attempt to lock the doors is made when
a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the
door to stop the buzz er, and lock the vehi-
cle once more.
■Setting the alarm
Locking the doors will set the alarm system.
( P.61)
■Using the mechanical key
The doors can also be locked and unlocked
with the mechanical key. ( P.351)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
P.98
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to lock and unlock
the doors. (P.351)
Replace the key battery with a new one if it
is depleted. ( P.308)
Multi-information
display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Holding the driver’s
door handle unlocks
only the driver’s
door.
Holding the front
passenger’s door
handle unlocks all
the doors.
Exterior: Beeps twice
Interior: Pings once
Holding either front
door handle unlocks
all the doors.

923-2. Opening, closing and locking the doors and trunk
■Rear seat reminder function
In order to remind you not to forget lug-
gage, etc. in the rear seat, when the engine
switch is turned off after any of the following
conditions are met, a buzzer will sound and
a message will be displayed on the
multi-information display for approximately
6 seconds.
●The engine is started within 10 minutes
after opening and closing a rear door.
●A rear door has been opened and closed
after the engine was started.
However, if a rear door is opened and then
closed within approxim ately 2 seconds, the
rear seat reminder function may not oper-
ate.
The rear seat reminder function determines
that luggage, etc. has been placed in a rear
seat based on opening and closing of a rear
door. Therefore, depend ing on the situation,
the rear seat reminder function may not
operate and you may still forget luggage,
etc. in the rear seat, or it may operate
unnecessarily.
The rear seat reminder function can be
enabled/disabled.
■Customization
Some functions can be customized.
(  P.388)
■Door lock switches
1 Locks all the doors
2 Unlocks all the doors
■Inside lock buttons
1 Locks the door
2 Unlocks the door
The front doors can be opened by pull-
ing the inside handle even if the lock
buttons are in the lock position.
■Locking the doors from the outside with-
out a key
1 Move the inside lock button to the lock
position.
2 Close the door.
The door cannot be lo cked if the engine
WARNING
■To prevent an accident
Observe the following precautions while
driving the vehicle.
Failure to do so may result in a door
opening and an occupant being thrown
out of the vehicle, resulting in death or
serious injury.
●Ensure that all doors are properly
closed and locked.
●Do not pull the inside handle of the
doors while driving.
Be especially careful with the front doors,
as the doors may be opened even if the
inside lock buttons are in locked position.
●Set the rear door ch ild-protector locks
when children are seated in the rear
seats.
Unlocking and locking the doors
from the inside

933-2. Opening, closing and locking the doors and trunk
3
Before driving
switch is in ACCESSORY or IGNITION
ON mode, or the electronic key is left
inside the vehicle. However, the key may not
be detected correctly and the door may be
locked.
■If a symbol indicating one or more of the
doors open is shown on the multi-infor-
mation display
The hood, one or more of the doors, or
trunk is not fully closed. If the vehicle
reaches a speed of 3 mph (5 km/h), a
buzzer sounds to indi cate that the door(s)
are not fully closed. Make sure to close
hood, all doors and trunk.
The door cannot be opened from
inside the vehicle when the lock is set.
1 Unlock
2 Lock
These locks can be set to prevent children
from opening the rear doors. Push down
on each rear door switch to lock both rear
doors.
The following functions can be set or
canceled:
For instructions on customizing, refer to
P.388.
Rear door child-protector lock
Automatic door locking and
unlocking systems
FunctionOperation
Speed linked
door locking
function
All doors are automati-
cally locked when vehi-
cle speed is
approximately 12 mph
(20 km/h) or higher.
Shift position
linked door lock-
ing functionAll doors are automati-
cally locked when shift-
ing the shift lever to
position other than P.
Shift position
linked door
unlocking func-
tionAll doors are automati-
cally unlocked when
shifting the shift lever
to P.
Driver’s door
linked door
unlocking func-
tionAll doors are automati-
cally unlocked when
driver’s door is
opened.

953-2. Opening, closing and locking the doors and trunk
3
Before driving
Press the trunk opener switch.
■Smart access system with
push-button start
While carrying the electronic key,
press the button on the trunk lid.
When all the doors are unlocked with the
power door lock system, the trunk can be
opened without carrying the electronic
key.
■Wireless remote control
Press and hold the switch. Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
■Trunk light
The trunk light turns on when the trunk is
opened.
■Function to prevent the trunk being
locked with the electronic key inside
●When all doors are locked, closing the
trunk lid with the electronic key left inside
the trunk will sound an alarm.
In this case, the trun k lid can be opened
pressing the trunk release button on the
trunk lid.
●If the spare electronic key is put in the
trunk with all the doors locked, the key
confinement prevention function is acti-
vated so the trunk can be opened. In
order to prevent theft, take all electronic
keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with
all the doors locked, the key may not be
Opening the trunk from inside
the vehicle
Opening the trunk from outside
the vehicle
When closing the trunk

963-2. Opening, closing and locking the doors and trunk
detected depending on the location of
the key and the surrounding radio wave
conditions. In this case, the key confine-
ment prevention function cannot be acti-
vated, causing the doors to lock when the
trunk is closed. Make sure to check
where the key is before closing the trunk.
●The key confinement prevention function
cannot be activated if any one of the
doors is unlocked. In this case, open the
trunk using the trunk opener.
■Internal trunk release lever
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the inside
of the trunk lid to the side.
The lever will continue to glow for some
time after the trunk lid is closed.
■Using the mechanical key
The trunk can be also opened using the
mechanical key. ( P.352)
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to unlock the trunk.
(  P.352)
Replace the key battery with a new one if it
is depleted. ( P.308)
■If a symbol indicating the trunk opens is
shown on the multi-information display
P.93
■Customization
Some functions can be customized.
(  P.388)
To protect luggage stored in the trunk
against theft, the luggage security sys- tem can be set to on.
1
Move the luggage security system
levers to the lock position.
2 To disable the trunk opener, turn
the main switch in the glove box off.
On
Off
When the main switch is off, the trunk lid
cannot be opened even with the wireless
remote control or entry function.
■When leaving a key to the vehicle with a
parking attendant
P.89
Luggage security system
A
B

973-2. Opening, closing and locking the doors and trunk
3
Before driving
■Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk
■Effective range (areas within which the
electronic key is detected) When locking or unlocking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of an outside door ha ndle. (Only the doors
detecting the key can be operated.)
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 engine or changing
engine switch modes
The system can be operated when the
electronic key is inside the vehicle.
■Alarms and warning messages
A combination of exterior and interior
alarms as well as warning messages shown
on the multi-information display are used to
prevent theft of the vehicle and accidents
resulting from errone ous operation. Take
appropriate measures in response to any
warning message on the multi-information
display. ( P.338)
When only an alarm sounds, circumstances
and correction procedures are as follows.
●When an exterior alarm sounds once for
5 seconds
Smart access system with
push-button start
The following operations can be
performed simply by carrying the
electronic key (including the card
key) on your person, for example in
your pocket. The driver should
always carry the electronic key.
 Locks and unlocks the doors
( P.90)
 Opens the trunk ( P.95)
 Starts the engine ( P.130)
A
B
C
D
A
B
C