lock Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H FROM MAR. 2015 PROD. (OM30F70U) Service Manual

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Move the inside lock button to the lock position.
Close the door.
The door cannot be locked if the power switch is in ACCESSORY or ON
mode, or the electronic ke y is left inside the vehicle.
The key may not be detected correc tly and the door may be locked.
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.
Locking the front doors from the outside without a key
Rear door child-protector lock
1
2
1
2

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Operation of each component
The following functions can be set or canceled:
For instructions on customizing, refer to P. 599.
■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. 559)
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
■Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features: P. 5 9 9 )
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
functionAll doors are automatically locked
when shifting the shift lever to position
other than P.
Shift position linked door unlocking
functionAll doors are automatically unlocked
when shifting the shift lever to P.
Driver’s door linked door unlocking
function
All the doors are unlocked when the
driver’s door is opened within approxi-
mately 45 seconds after turning the
power switch off.

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CAUTION
■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 throwing 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 for 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.

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3
Operation of each component
Tr u n k
Press the opener switch.
If the vehicle is equipped with a power
trunk opener and closer, the trunk lid
automatically opens fully.
■Trunk release button
While carrying the electronic key,
press the button.
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
P. 1 3 6
The trunk can be opened using the trunk opener, trunk release button
or wireless remote control.
If the vehicle is equipp ed with a power trunk opener and closer, the
trunk can be closed using the trunk closer.
Opening the trunk from inside the vehicle
Opening the trunk from outside the vehicle

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Pressing the switch closes the trunk
lid automatically. (A buzzer sounds.)
Pressing the switch while the trunk lid
is closing opens the trunk lid again.
Using the trunk gr ip, lower the trunk
without applying force to the side
and push the trunk down from the
outside to close it.
The trunk opener switch can be tempor arily disabled to protect luggage
stored in the trunk against theft.
Turn the main switch in the glove
box off to disable the trunk opener.
On
Off
The trunk lid cannot be opened even
with the wireless remote control or the
trunk release button.
Trunk closer switch (vehicles with power trunk opener and closer)
When closing the trunk
Luggage security system
1
2

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Operation of each component
■Tr u n k l i g h t
The trunk light turns on when the trunk is opened.
■Trunk easy closer (vehicles with power trunk opener and closer)
In the event that the trunk lid is left slightly open, the trunk easy closer will automati-
cally close it to the fully closed position.
■Function to prevent the trunk being lo cked with the electronic key inside
●When all doors are being locked, closing the trunk lid with the electronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on the
trunk lid.
●Even when the spare electronic key is put in the trunk with all the doors locked, the
key confinement prevention function can be activated so the trunk can be opened.
In order to prevent theft, take all electron ic keys with you when leaving the vehicle.
●Even when the electronic key is put in the trunk with all the doors are locked, the
key may not be detected depending on th e places and the surrounding radio wave
conditions. In this case, the key confinem ent prevention function cannot be acti-
vated, causing the doors to lock when th e 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.
■Overload protection function (vehicle s with power trunk opener and closer)
The trunk lid will not operate when excessiv e load is present on the top of the trunk
lid.
■Fall-down protection function (vehicle s with power trunk opener and closer)
While the trunk lid is opening automatically, applying excessive force to it will stop
the opening operation to prevent the trunk lid from rapidly falling down.
■Jam protection function (vehicles with power trunk opener and closer)
While the trunk lid is closing automatically, the trunk lid will stop closing and open if
something gets caught.

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■Internal trunk release lever
■Using the mechanical key
The trunk can be also opened using the mechanical key. ( P. 5 6 0 )
■When leaving a key to the vehicle with a parking attendant
P. 1 2 1
■Customization
The trunk unlocking operation can be changed. (Customizable features:P. 5 9 9 )
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.
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Before driving
●Make sure that the trunk lid is fully closed. If the trunk lid is not fully closed, it may
open unexpectedly while driving and hit near-by objects or luggage in the trunk
may be thrown out, causing an accident.
●Do not allow children to play in the trunk.
If a child is accidentally locked in the tr unk, they could suffer from heat exhaus-
tion, suffocation or other injuries.
●Do not allow a child to open or close the trunk lid.
Doing so may cause the trunk lid to open unexpectedly, or cause the child’s
hands, head, or neck to be caught by the closing trunk lid.
■Important points while driving
Never let anyone sit in the trunk. In the event of sudden braking or a collision, they
are susceptible to deat h or serious injury.

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Operation of each component
CAUTION
■Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in serious
injury.
●Remove any heavy loads, such as snow and ice, from the trunk lid before opening
it. Failure to do so may cause the trunk lid to suddenly shut again after it is opened.
●When opening or closing the trunk lid, thoroughly check to make sure the sur-
rounding area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●Use caution when opening or closing the trunk lid in windy weather as it may
move abruptly in strong wind.
●Do not attach any accessories other than genuine Lexus parts to the trunk lid.
Such additional weight on the trunk lid may cause the lid to suddenly shut again
after it is opened.
●The trunk lid may suddenly shut if it is not
opened fully. It is more difficult to open or
close the trunk lid on an incline than on a
level surface, so beware of the trunk lid
unexpectedly opening or closing by itself.
Make sure that the trunk lid is fully open
and secure before using the trunk.
●When closing the trunk lid, take extra care
to prevent your fingers etc. from being
caught.
●When closing the trunk lid, make sure to
press it lightly on it s outer surface. If the
trunk grip is used to fully close the trunk lid,
it may result in hands or arms being caught.

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CAUTION
■Trunk easy closer (vehicles with power trunk opener and closer)
■Power trunk opener and closer (if equipped)
Observe the following precautions when operating the power trunk opener and
closer.
Failure to do so may cause serious injury.
●Check the safety of the surrounding area to make sure there are no obstacles or
anything that could cause any of your belongings to get caught.
●If anyone is in the vicinity, make sure they are safe and let them know that the
trunk is about to open or close.
●If the trunk closer switch is pressed whil e the trunk lid is opening during automatic
operation, the trunk lid stops opening. Take extra care when on an incline, as the
trunk lid may open or close suddenly.
●On an incline, the trunk lid may suddenly shut after it opens automatically. Make
sure the trunk lid is fully open and secure before using the trunk.
●In the following situations, the power trunk opener and closer may detect an
abnormality and automatic operation may be stopped. In this case, the trunk lid
has to be operated manually. Take extra care in this situation, as the stopped trunk
lid may suddenly shut, causing an accident.
• When the trunk lid contacts an obstacle
• When the 12-volt battery voltage suddenly drops, such as when the power switch is turned to ON mode or the hybrid system is started during automatic
operation
●Do not attach any accessories other than genuine Lexus parts to the trunk lid. The
power trunk opener and closer may not op erate, causing itself to malfunction, or
the trunk lid may suddenly shut again after it is opened.
In the event that the trunk lid is left slightly
open, the trunk easy closer will automatically
close it to the fully closed position. It takes
several seconds before the trunk easy closer
begins to operate. Be careful not to catch fin-
gers or anything else in the trunk lid, as this
may cause bone fractures or other serious
injuries.

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Operation of each component
CAUTION
■Jam protection function (vehicles wi th power trunk opener and closer)
Observe the following precautions.
Failure to do so may cause serious injury.
●Never use any part of your body to inte ntionally activate the jam protection func-
tion.
●The jam protection function may not work if something gets caught just before
the trunk lid fully closes. Be careful not to catch fingers or anything else in the
trunk lid.
●The jam protection function may not work depending on the shape of the object
that is caught. Be careful not to catch fingers or anything else.
NOTICE
■To prevent trunk easy closer malfunctions (vehicles with power trunk opener and
closer)
Do not apply force to the trunk lid while the trunk easy closer is operating.
■To prevent damage to the power trunk opener and closer (vehicles with power
trunk opener and closer)
●Make sure that there is no luggage or snow on the trunk lid before operating the
power trunk opener and closer. In addition, make sure that there is no ice
between the trunk lid and frame that preven ts movement of the trunk lid. Operat-
ing the power trunk opener and closer when excessive load is present on the
trunk lid may cause a malfunction.
●Do not apply excessive force to the trunk lid while the power trunk opener and
closer is operating.