2020 Lexus IS350 trunk

791-3. Theft deterrent system
1
For safety and security
IS350 AWD/IS350/IS300 AWD/IS300_U
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the si tuation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle un locks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the battery
●The trunk is opened using the mechanical key.
●A person inside the vehicle opens a door or
the trunk or hood, or unlocks the vehicle.
●The battery is recharged or replaced when the
vehicle is locked. (P. 577)

117
Operation of
each component
3
IS350 AWD/IS350/IS300 AWD/IS300_U
3-1. Key information
Keys ....................................................118
3-2. Opening, closing and locking the doors and
trunk
Doors ................................................124
Trunk ................................................ 130
Smart access system with push-button start ...................... 135
3-3. Adjusting the seats Front seats...................................... 143
Rear seats....................................... 145
Driving position memory ..........147
Head restraints ............................ 152
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 155
Inside rear view mirror ..............157
Outside rear view mirrors....... 159
3-5. Opening, closing the windows and moon roof
Power windows ............................162
Moon roof ...................................... 166

118
IS350 AWD/IS350/IS300 AWD/IS300_U3-1. Key information
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart access systemwith push-button start ( P. 135)
• Operating the wireless remote con- trol function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P. 135)
Locks the doors ( P. 124)
Unlocks the doors ( P. 124)
Opens the windows and moon roof
*
( P. 124)
Opens the trunk ( P. 130)
Sounds the alarm ( P. 120)
*: This setting must be customized at your
Lexus dealer.
Keys
The keys
1
2
3
4
Wireless remote control
1
2
3
4
5

124
IS350 AWD/IS350/IS300 AWD/IS300_U3-2. Opening, closing and
locking the doors and trunk
◆Smart access system with push-button start
Carry the electronic key to enable this function.
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
seconds after the doors are locked.
*: The door unlock settings can be changed. ( P. 128)
Touch the lock sensor (indentation on the upper part of the front door han-
dle) to lock all the doors.
Check that the door is securely locked.
◆Wireless remote control
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Press and hold to open the windows
and moon roof.
*
*
: This setting must be customized at your Lexus dealer.
Doors
Unlocking and locking the doors from the outside
1
2
1
2

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
1
2
1
2
Locking the doors from the outside without a key
1
2

1273-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U
The door cannot be opened from inside
the vehicle when the lock is set.Unlock
Lock
These locks can be set to prevent chil-
dren 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 custom izing, refer to P. 613.
Rear door child-protector lock
1
2
Automatic door locking and unlocking systems
FunctionOperation
Speed linked door locking function
All doors are automatically locked when
vehicle speed is approximately 12 mph
(20 km/h) or higher.
Shift position linked door locking function
All doors are automatically locked when
shifting the shift lever to position other
than P.
Shift position linked door unlocking func-
tionAll doors are automatically unlocked
when shifting the shift lever to P.
Driver's door linked door unlocking func-
tionAll doors are automatically unlocked
when driver’s door is opened.

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)
1
2
2
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