2017 Lexus GS300h trunk

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1-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE)
For safety and security
Alarm 
The alarm uses light and sound to give an
alert when an intrusion is detected.
The alarm is triggered in the following situations when the alarm is set: ● A locked door is unlocked or opened in any way other than using the entry
function or wireless remote control. (The door will lock again automatically.)
● A trunk is opened in any way other than using the entry function, wireless
remote control or mechanical key.
● The hood is opened.
● The tilt sensor detects a change of vehicle inclination. (if equipped)
Close the doors, trunk and hood, and
lock all the doors using the entry func-
tion or wireless remote control. The
system will be set automatically after
30 seconds. The indicator light changes from being
on to flashing when the system is set.
: If equipped
The alarm
Setting the alarm system

921-3. Theft deterrent system
GS450h_300h_OM_OM30F92E_(EE) Do one of the following to deactivate or stop the alarm: ●
Unlock the doors or open the trunk using the entry function or wireless
remote control.
● Turn the power switch to ACCESSORY or ON mode, or start the hybrid sys-
tem. (The alarm will be deactivated or stopped after a few seconds.)
■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 (if equipped) are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm

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1-3. Theft deterrent system
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GS450h_300h_OM_OM30F92E_(EE)
For safety and security
■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, the door may automatically lock:
●When a person remain ing in the vehicle unlocks the d oor and the alarm is activated.
●While the alarm is activated, a person re maining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery.
■Customization
The alarm can be set to deactivate when the mechanical key is used to unlock.
(Customizable features: P. 561)
●The doors are unlocked using the mechanical
key, or the trunk is opened using the mechani-
cal key.
●A person inside the vehicle opens a door, the
trunk or hood, or unlocks the vehicle using an
inside lock button.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. ( P. 533)
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation of
the system cannot be guaranteed.

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Operation of
each component
GS450h_300h_OM_OM30F92E_(EE) 3-1. Key information
Keys .................................................. 134
3-2. Opening, closing and locking the doors and trunk
Doors ............................................... 139
Trunk .................................................146
Smart entry & start system ...... 153
3-3. Adjusting the seats Front seats.......................................175
Driving position memory ......... 178
Head restraints ............................ 183
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................. 186
Inside rear view mirror ............. 188
Outside rear view mirrors....... 190
3-5. Opening, closing the windows and moon roof
Power windows ........................... 193
Moon roof ...................................... 196

1363-1. Key information
GS450h_300h_OM_OM30F92E_(EE)
■When required to leave the vehicl e’s key with a parking attendant
Turn the trunk opener main switch off and lock the glove box as circumstances demand. (  P. 148, 370)
Remove the mechanical key for your own use and provide the attendant with the elec-
tronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer using the other mechanical key and the key
number stamped on your key number plate. K eep the plate in a safe place such as your
wallet, not in the vehicle.
■When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any but-
tons on the electronic key while inside the ai rcraft cabin. If you are carrying an electronic
key in your bag etc., ensure that the buttons are not likely to be pressed accidentally.
Pressing a button may cause the electronic key to emit radio waves that could interfere
with the operation of the aircraft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and a
half.)
●If the battery becomes low, an alarm will sound in the cabin when the hybrid system
stops. ( P. 496)
●As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. ( P. 435)

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3-2. Opening, closing and locking the doors and trunk
Operation of each component
GS450h_300h_OM_OM30F92E_(EE)
Doors
◆Smart entry & start system (vehicles with entry function)
Carry the electronic key to enable this function.Grip the handle to unlock 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.
Touch the lock sensor (the inden-
tation on the upper part of the
door handle) to lock the doors.
Check that the door is securely locked.
◆Wireless remote control
Locks all the doors
Check that the door is securely
locked.
Press and hold to close the windows
and moon roof. (if equipped) *
Unlocks all the doors
Press and hold to open the windows
and moon roof. (if equipped) *
* : These settings must be customized at any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
Unlocking and locking the doors from the outside
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1403-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30F92E_(EE)
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/unlocked.
(Locked: once; Unlocked: twice)
■Security feature
If a door is not opened within approximately 30 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 (vehicles with entry function)
■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 buzzer, and lock the vehicle once more.
■Setting the alarm
Locking the doors will set the alarm system. ( P. 91)
■If the smart entry & start system or wireless remote control does not operate properly
●Use the mechanical key to lock and unlock the doors. ( P. 527)
●Replace the key battery with a new one if it is depleted. (P. 435)
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.

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3-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS450h_300h_OM_OM30F92E_(EE)
WARNING
Observe the following precautions.
Failing to do so may result in death or serious injury.
■When using the wireless remote control and operating the power windows or moon
roof (if equipped)
Operate the power window or moon roof afte r checking to make sure that there is no
possibility of any passenger having any of their body parts caught in the window or
moon roof. Also, do not allow children to oper ate the wireless remote control. It is pos-
sible for children and other passengers to get caught in the power window or moon roof.
■Jam protection function
●Never try jamming any part of your body to activate the jam protection function
intentionally.
●The jam protection function may not work if something gets caught just before the
window or moon roof fully closes.