2020 Lexus IS300 key

1253-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: once; Unlocked: twice)
A buzzer sounds to indicate that th e windows 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 door cannot be locked by the lock sensor on the upper part of the door han-
dle
■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 d oor to stop the buzzer, and lock the vehicle
once more.
■Setting the alarm
Locking the doors will set the alarm system. ( P. 78)
■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. 572)
Replace the key battery with a new one if it is depleted. ( P. 502)
If the door will not lock even when the topside
sensor area is touched, try touching both the
topside and underside sensor areas at the same
time.

1263-2. Opening, closing and locking the doors and trunk
IS350 AWD/IS350/IS300 AWD/IS300_U
◆Door lock switches Locks all the doors
Unlocks all the doors
◆Inside lock buttonsLocks the door
Unlocks the door
The front doors can be opened by
pulling the inside handle even if the
lock buttons are in the lock position.
Move the inside lock button to the lock position.
Close the door.
The door cannot be locked if the engine 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.
Unlocking and locking the doors from the inside
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Locking the doors from the outside without a key
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1283-2. Opening, closing and locking the doors and trunk
IS350 AWD/IS350/IS300 AWD/IS300_U
■Switching the door unlock function
It is possible to set which doors the entry function unlock s using the wireless remote con-
trol.
Turn the engine switch off.
When the indicator light on the key surface is not on, press and hold , or
for approximately 5 seconds while pressing 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 .)
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 af ter is pressed, the doors will be locked
again and the alarm will automatically be set.)
In a case that the alarm is triggered, immediately stop the alarm. ( P. 78)
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Multi-information
displayUnlocking functionBeep
Holding the driver’s door handle
unlocks only the driver’s door.
Exterior: Beeps 3 times
Interior: Pings onceHolding the front passenger’s
door handle unlocks all the
doors.
Holding either front door handle
unlocks all the doors.Exterior: Beeps twice
Interior: Pings once

1293-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
■Impact detection door lock release system
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.
■Using the mechanical key
The doors can also be locked and unlocked with the mechanical key. ( P. 572)
■Conditions affecting the oper ation of the smart access system with push-button start
or wireless remote control
 P. 137
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 613)
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 child-protector locks when children are seated in the rear seats.

1303-2. Opening, closing and locking the doors and trunk
IS350 AWD/IS350/IS300 AWD/IS300_U
Press the 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 carry-
ing the electronic key.
◆Wireless remote control
Press and hold the switch.
Trunk
The trunk can be opened using the trunk opener, entry function or wireless
remote control.
Opening the trunk from inside the vehicle
Opening the trunk from outside the vehicle

1323-2. Opening, closing and locking the doors and trunk
IS350 AWD/IS350/IS300 AWD/IS300_U
■Trunk light
The trunk light turns on when the trunk is opened.
■Function to prevent the trunk being lo cked with the electronic key inside
●When all doors are locked, closing the trunk li d with the electronic key left inside the
trunk will sound an alarm.
In this case, the trunk lid can be opened pr essing 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 confine-
ment prevention function is activated 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
detected depending on the location of the key and the surrounding radio wave condi-
tions. In this case, the key confinement prevention function cannot be activated, 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 canno t be activated if any one of the doors is
unlocked. In this case, open the trunk using the trunk opener.
■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 572)
■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. 572)
Replace the key battery with a new one if it is depleted. ( P. 502)
■When leaving a key to the vehicle with a parking attendant
P. 120
■Customization
The trunk unlocking operation can be changed. (Customizable features:  P. 613)
The trunk lid can be open
ed 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.

1353-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
●Locks and unlocks the doors (P. 124)
●Opens the trunk ( P. 130)
●Starts the engine ( P. 186)
■Antenna location
■Effective range (areas within which the electronic key is detected)
Smart access system with push-button start
The following operations can be perfor med 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.
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk
When locking or unlocking the doors
The system can be operated when the elec-
tronic key is within about 2.3 ft. (0.7 m) of
an outside door handle. (Only the doors
detecting the key can be operated.)
When opening the trunk
The system can be operated when the elec-
tronic 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.1
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1363-2. Opening, closing and locking the doors and trunk
IS350 AWD/IS350/IS300 AWD/IS300_U
■Alarms and warning messages
A combination of exterior and interior alar ms as well as warning messages shown on the
multi-information display are used to prevent theft of the vehicle and accidents resulting
from erroneous operation. Take appropriate measures in response to any warning mes-
sage on the multi-information display. ( P. 532)
When only an alarm sounds, circumstances and correction procedures are as follows.
■If a warning message is displayed indicating that there is a malfunction in the smart
access system with push-button start
 P. 532
■Battery-saving function
The battery-saving function w ill be activated in order to prevent the electronic key bat-
tery and the vehicle battery from being discharged while the vehicle is not in operation
for a long time.
●In the following situations, the smart acce ss system with push-button start may take
some time to unlock the doors.
• The electronic key has been left within appr oximately 6 ft. (2 m) of the outside of the
vehicle for 10 minutes or longer.
• The smart access system with push-button st art has not been used for 5 days or lon-
ger.
●If the smart access system with push-button start has not been used for 14 days or lon-
ger, the doors cannot be unlocked at any door except the driver’s door. In this case,
hold the driver’s door handle, or use the wi reless remote control or mechanical key, to
unlock the doors.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 5
seconds
An attempt was made to lock
the vehicle while a door was
open.Close all of the doors and
lock the doors again.
The trunk was closed while the
electronic key was still inside the
trunk and all the doors were
locked.Retrieve the electronic key
from the trunk and close
the trunk lid.
Interior alarm pings
repeatedly
The engine switch was turned to
ACCESSORY mode while the
driver’s door was open (The
driver’s door was opened when
the engine switch was in
ACCESSORY mode).
Turn the engine switch off
and close the driver’s door.
The engine switch was turned
off while the driver’s door was
open.
Close the driver’s door.