alarm Lexus GS350 2008 Do-it-yourself maintenance / LEXUS 2008 GS460/350 QUICK GUIDE OWNER'S MANUAL (OM30B04U)

Topic 1
Entering and Exiting
9
Quick_GS_G_U
January 29, 2008 5:04 pm
Keys
■Electronic key
● Locks and unlocks the doors
● Opens the trunk
● Starts and stops the engine
■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.
■ 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.)1
2
3
4
The wireless remote control can also be used to open the windows and moon roof. 
To do so, simply press and hold button.

Topic 1
Entering and Exiting
11
Quick_GS_G_U
January 29, 2008 5:04 pm
Theft Deterrent System
■Immobilizer system
The immobilizer system prevents the engine 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 set the alarm: close the doors, trunk and hood, and lock all doors. The indicator light
comes on to indicate that the alarm is in it s preparation state. When the indicator light
begins to flash, the system is armed.
To deactivate or stop the alarm: turn the "ENGINE START STOP" switch to the ACCES-
SORY or IGNITION ON mode, or unlock the doors or trunk.
■ Steering lock
The steering lock is engaged when the driver’s
door is opened with the “ENGINE START STOP”
switch OFF.
The theft deterrent system includes the following features to help protect your vehicle from
theft.

Topic 2
Before Driving
14
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Quick_GS_G_U
January 29, 2008 5:04 pm
Driving Position Memory System (If Equipped)
■ 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, 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 t he vehicle’s primary drivers and passengers.
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 usin g the mechanical key or manually from inside
the vehicle.)

60
Entering and Exiting
Before Driving
When Driving
Rain and
Night Driving
Driving Comfort
Opening and Closing
What to do if ...
Customizing Your Lexus
Quick_GS_G_U
December 3, 2007 7:01 pm
Electronic Key Alarm
The electronic key alarm uses an alarm and warn ing messages to indicate that the electronic
key has been used improperly. Take appropri ate 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 co rrection 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 “ENGINE
START STOP” switch OFF
Turn the “ENGINE START
STOP” switch 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 “ENGINE
START STOP” switch is in
ACCESSORY mode.)
Turn the “ENGINE START
STOP” switch OFF and
close the driver’s door.
Tu r n e d t h e “ E N G I N E
START STOP” switch OFF
while the driver’s door is
open
Close the driver’s door.