Lexus GS350 2008 Do-it-yourself maintenance / LEXUS 2008 GS460/350 (OM30A87U) Owner's Guide

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1-1. Key information
1
Before driving
GS_G_U
May 13, 2008 5:14 pm
■Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a mechanical key is lost, a new key can be made at your Lexus dealer using the key
number plate. ( P. 5 2 5 )
NOTICE
■To prevent key damage
●Do not disassemble the electronic key.
●Do not subject the keys to strong shocks , expose them to high temperatures by
placing them in direct sunlight, or get them wet.
●Do not expose the keys to electromagneti c materials or attach any material that
blocks electromagnetic waves to the key surface.

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GS_G_U
October 23, 2015 1:08 pm
1-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start
The following operations can be performed simply by carrying the elec-
tronic key on your person, for example in your pocket. 
(The driver should always carry the electronic key.)
Locks and unlocks the doors ( P. 2 3 )
Unlocks the trunk ( P. 2 3 )
Starts and stops the engine ( P. 121)

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
GS_G_U
October 23, 2015 1:08 pm
Locking and unlocking the doorsPress the lock button to lock the
door.
Press the lock button to lock the
door.
Grip the handle to unlock the
door.
Make sure to touch the sensor on
the back of the handle.
The door cannot be unlocked for 3
seconds after the door is locked.
Unlocking the trunkPress the button to unlock the
trunk.

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1-2. Opening, closing and locking the doors and trunk
GS_G_U
October 23, 2015 1:08 pm
Antenna location and effective range■ Antenna location
Antennas outside cabin
Antennas inside cabin
Antenna inside trunk
Antenna outside trunk

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
GS_G_U
October 23, 2015 1:08 pm
■Effective range (areas within wh ich the electronic key is detected)
When locking or unlock-
ing the doors
The system can be oper-
ated when the electronic
key is within about 2.3 ft.
(70 cm) of an outside door
handle. (Only the doors
detecting the key can be
operated.)
When unlocking the trunk
The system can be oper-
ated when the electronic
key is within about 2.3 ft.
(70 cm) of the trunk
release button.
When starting the engine
or changing modes
The system can be oper-
ated when the electronic
key is inside the vehicle.

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1-2. Opening, closing and locking the doors and trunk
GS_G_U
October 23, 2015 1:08 pm
■Operation signals
●Doors: A buzzer sounds and the emergency flashers flash to indicate that the
doors have been locked/unlocked. (Locked: Once; Unlocked: Twice)
●Windows and moon roof: A buzzer sounds when the windows and moon roof
begin to close.
■Door lock buzzer
If a door is not fully closed, a buzzer soun ds continuously if an attempt to lock the
door is made. Fully close the door to st op the buzzer, and lock the vehicle once
more.
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the fol-
lowing situations, the communication between key and vehicle may be affected,
preventing the smart access system with push-button start and wireless remote
control from operating properly. (Way of coping: P. 5 2 6 )
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, ga s station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication devices
●When the electronic key has come into contact with, or is covered by a metallic
object
●When multiple electronic keys are in the vicinity
●When carrying or using the electronic key together with the following devices
that emit radio waves
• Another vehicle’s electronic key
• A wireless key that emits radio waves
• Personal computer
●If window tint with a metallic content or metallic objects are attached to the rear
window

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
GS_G_U
October 23, 2015 1:08 pm
■Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless remote
control. Turn the “ENGINE START STOP” switch OFF.
When the indicator ligh t 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 operatio n is performed, as shown below. (When
changing the setting continuously, release th e buttons, wait for at least 5 seconds,
and repeat step 2.)
STEP1
STEP2
Multi-information
displayUnlocking doorsBeep
Hold the driver’s door handle
to unlock only the driver’s
door
Exterior: Beeps 3 times
Interior: Rings once
Hold a passenger’s door han-
dle to unlock all the doors
Hold the door handle to
unlock the front and rear
doors on your sideExterior: Beeps 4 times
Interior: Rings once
Hold the door handle to
unlock the doorExterior: Beeps once
Interior: Rings once
Hold a door handle to unlock
all doorsExterior: Beeps twice
Interior: Rings once

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1-2. Opening, closing and locking the doors and trunk
GS_G_U
October 23, 2015 1:08 pm
Unlock the doors using the wireless remote control and open one of the
doors.
If a door is not opened within 60 seconds after is pressed, the doors
will be locked again and the alarm will automatically be set.
In case that the alarm is triggered, immediately stop the alarm. ( P. 7 5 )
■Battery-saving function
In the following circumstances, the entry func tion is disabled in order to prevent the
vehicle and electronic key batteries from discharging.
●When the entry function has not been used for 2 months or more
●When the electronic key has been left within approximately 3 ft. (1 m) of the
vehicle for 10 minutes or more
The system will resume operation when...
●The vehicle is locked using the door handle lock switch
●The vehicle is locked/unlocked using the wireless remote control function 
(  P. 34) or the mechanical key ( P. 5 2 6 )
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The battery becomes depleted even if
the electronic key is not used.) If the smart access system with push-button start
or the wireless remote control function does not operate, or the detection area
becomes smaller, the battery may be depleted. Replace the battery when nec-
essary. (  P. 440)
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Recharging cellular phones or cordless phones
• Table lamps
STEP3

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1-2. Opening, closing and locking the doors and trunk
1
Before driving
GS_G_U
October 23, 2015 1:08 pm
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get the
electronic key too close to the vehicle wh en operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key may
not be detected corr ectly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not function.)
■Note for the smart access system with push-button start
●Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases.
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear bumper center when the trunk is unlocked.
• The electronic key is on the instrument panel, rear package tray or floor, or in
the glove box when the engine is started or “ENGINE START STOP” switch
modes are changed.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone.
●Even if the electronic key is not inside th e vehicle, it may be possible to start the
engine if the electronic key is near the window.
●The doors may unlock if a large amount of water splashes on the door handle,
such as in the rain or in a car wash when the electronic key is within the effective
range. (The doors will automatically be locked after approximately 60 seconds
if the doors are not opened and closed.)

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1-2. Opening, closing and locking the doors and trunk
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October 23, 2015 1:08 pm
●Gripping the door handle when wearing a glove may not unlock the door.
●If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by the
smart access system with pu sh-button start. (Use the wireless remote control to
unlock the doors.)
●A sudden approach to the effective range or door handle operation may pre-
vent the doors from being unlocked. In th is case, return the door handle to the
original position and check that the door s unlock before pulling the door handle
again.
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of
the vehicle.
■Security feature
If a door is not opened within approx imately 60 seconds after the vehicle is
unlocked, the theft deterrent system automatically locks the vehicle again.
■Alarms and warning indicators
A combination of exterior and interior alarms as well as warnings displayed on the
multi-information display are used to prevent theft of the vehicle and unforeseeable
accidents resulting from erroneous operation. Take appropriate measures in
response to any warning indications on the multi-information display. ( P. 5 0 8 )
The following table describes circumstances and correction procedures when only
alarms are sounded.