2010 Lexus GS450h alarm

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Keys
■Electronic key
Smart access system with push-button start
(P.9 , 1 7 )
*: If equipped
■Mechanical key
●Locks and unlocks the doors
●Opens the trunk
●Locks and unlocks the glove box
The mechanical key is stored inside the electronic
key. To extract the key, release the latch and pull,
or if equipped with a card key, press the button
and pull.
■Wireless remote control
Locks the doors
Unlocks the doors
Opens the trunk
Sounds the alarm
(To stop the alarm, push any button on the
wireless remote control.)
Card key*
1
2
3
4

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Theft Deterrent System
■Immobilizer system
The immobilizer system prevents the hybrid sys-
tem from being started in the event that an
attempt is made to start the vehicle using an
unregistered key.
The security indicator light flashes to indicate that
the system is set.
■Alarm
The system sounds the alarm and flashes light when an attempt to steal the vehicle is
detected.
To s e t t h e a l a r m : close the doors, trunk and hood, and lock all doors. The indicator light
comes on to indicate that the alarm is in its preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the “POWER” switch to the ACCESSORY or ON
mode, or unlock the doors or trunk.
■Steering lock
The steering lock is engaged when the driver’s
door is opened with the “POWER” switch OFF.
The theft deterrent system includes the following features to help protect your vehicle from
theft.

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Driving Position Memory System
■Setting memory positions
While holding the “SET” button, press and hold
one of the memory buttons (“1”, “2”, or “3”) until
you hear a beep.
The current position of the driver’s or front pas-
senger’s seat (if equipped), and the outside rear
view mirror and steering wheel (driver’s side
switch only) are stored.
■Recalling memory positions
Press one of the memory buttons (“1”, “2”, or “3”).
■Linking driving position memory with door unlock operation (driver’s side only)
While holding the desired memory button, press
and hold button on the wireless remote con-
trol until you hear a beep.
To prevent triggering of the alarm, open one of the
doors within 60 seconds after the beep is heard.
The seats can be returned to a previously set position by simply pressing a button.
The position of the steering wheel and the outside rear view mirrors is adjusted along
with the driver’s seat.
Positions can be conveniently stored for the vehicle’s primary drivers and passengers (if equipped).
Linking driving position memory to the door unlock operation allows the memory position
to be recalled automatically when the driver’s door is opened. (The linked function does not
operate if the driver’s door is unlocked using the mechanical key or manually from inside
the vehicle.)

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Electronic Key Alarm
The electronic key alarm uses an alarm and warning messages to indicate that the electronic
key has been used improperly. Take appropriate measure in response to any warning mes-
sages that are displayed. In some cases, an alarm may sound without an accompanying
warning message. If so, follow the correction procedure in the table below.
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 2 seconds
Tried to lock the doors
using the entry function
while the electronic key is
still inside the passenger
compartmentRetrieve the electronic key
from the passenger com-
partment and lock the
doors again.
Closed the trunk while the
electronic key is still inside
and all doors are lockedRetrieve the electronic key
from the trunk and close
the trunk lid.
Exterior alarm sounds
once for 60 seconds
Tried to exit the vehicle
with the electronic key and
lock the doors without first
turning the “POWER”
switch OFF
Tu r n t h e “ P O W E R ” s w i t c h
OFF and lock the doors
again.
Exterior alarm sounds
once for 10 secondsTried to lock the vehicle
using the entry function
while a door is openClose all of the doors and
lock the doors again.
Interior alarm sounds
continuouslyTried to open the door and
exit the vehicle without
shifting the shift lever to “P”
Shift the shift lever to “P”.
Interior alarm rings
continuously
Switched to ACCES-
SORY mode while the
driver’s door is open
(Opened the driver’s door
when the “POWER”
switch is in ACCESSORY
mode.)
Tu r n t h e “ P O W E R ” s w i t c h
OFF and close the driver’s
door.
Turned the “POWER”
switch OFF while the
driver’s door is open
Close the driver’s door.