2012 Lexus GS350 key

1203-1. Key information
GS350/250_EE (OM30C36E)
Card key (if equipped)
The card key is not waterproof.
The mechanical key that is stored inside the card key should be used only if
a problem arises, such as when the card key does not operate properly.
If it is difficult to take out the mechanical key, push down the lock release
button using a pen tip etc. If it is still difficult to pull it out, use a coin etc.
When required to leave the vehicle’s key with a parking attendant
Turn the trunk opener main switch off, lock the glove box and armrest door
as circumstances demand. (P. 151, 616, 639)
Remove the mechanical key for your own use and provide the attendant with
the electronic key only.
If you lose your mechanical keys
New genuine mechanical keys can be made by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional using the
other mechanical key and the key number stamped on your key number plate.
Keep the plate in a safe place such as your wallet, not in the vehicle.
To store the mechanical key in the card
key, insert it while pressing the lock
release button.
If the battery cover is not installed and
the battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive termi-
nal facing the Lexus emblem.

1213-1. Key information
3
Operation of each component
GS350/250_EE (OM30C36E)
When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press
any buttons on the electronic key while inside the aircraft 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.
NOTICE
To prevent key damage
Do not drop the keys, subject them to strong shocks or bend them.
Do not expose the keys to high temperatures for long periods of time.
Do not get the keys wet or wash them in an ultrasonic washer etc.
Do not attach metallic or magnetic materials to the keys or place the keys
close to such materials.
Do not disassemble the keys.
Do not attach a sticker or anything else to the surface of the electronic key.
Do not place the keys near objects that produce magnetic fields, such as
TVs, audio systems and glass top ranges, or medical electrical equipment,
such as low-frequency therapy equipment.
Carrying the electronic key on your person
Carry the electronic key 10 cm (3.9 in.) or more away from electric appli-
ances that are turned on. Radio waves emitted from electric appliances
within 10 cm (3.9 in.) of the electronic key may interfere with the key,
causing the key to not function properly.
In case of a smart entry & start system malfunction or other key-related
problems
Take your vehicle with all the electronic keys provided with your vehicle,
including the card key, to any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.

1223-1. Key information
GS350/250_EE (OM30C36E)
NOTICE
When an electronic key is lost
If the electronic key remains lost, the risk of vehicle theft increases signifi-
cantly. Visit any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional immediately with all remaining electronic
keys and the card key that was provided with your vehicle.
Handling the card key
Do not apply excess force when inserting the mechanical key into the card
key. Doing so may damage the card key.
If the battery or card key terminals get wet, the battery may corrode.
If the key is dropped into water, or if drinking water etc. is spilled on the
key, immediately remove the battery cover and wipe the battery and ter-
minals. (To remove the battery cover, lightly grasp and pull it.) If the bat-
tery is corroded, have any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional replace the battery.
Do not crush the battery cover or use a screwdriver to remove the battery
cover. Forcibly removing the battery cover may bend or damage the key.
If the battery cover is frequently removed, the battery cover may become
loose.
When installing the battery, make sure to check the direction of the bat-
tery.
Installing the battery in the wrong direction may cause the battery to
deplete rapidly.
The surface of the card key may be damaged, or its coating may peel off
in the following situations:
• The card key is carried together with hard objects, such as coins and
keys.
• The card key is scraped with a sharp object, such as the tip of a
mechanical pencil.
• The surface of the card key is wiped with thinner or benzene.

123
3 3-2. Opening, closing and locking the doors and trunk
Operation of each component
GS350/250_EE (OM30C36E)
Smart entry & start system
The following operations can be performed simply by carrying the
electronic key (including the card key) on your person, for example
in your pocket. (The driver should always carry the electronic key.)
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 con-
trol if the light switch is in the “AUTO” position.
Function summary
Locks and unlocks the doors (P. 124)
Opens the trunk (P. 124)
Starts the engine (P. 207)1
2
3

1263-2. Opening, closing and locking the doors and trunk
GS350/250_EE (OM30C36E)
Effective range (areas within which the electronic key is
detected)
When locking or unlocking
the doors
The system can be operated
when the electronic key is
within about 0.7 m (2.3 ft.) of an
outside door handle. (Only the
doors detecting the key can be
operated.)
When opening the trunk
The system can be operated
when the electronic key is
within about 0.7 m (2.3 ft.) of
the trunk release button.
When starting the engine or
changing engine switch
modes
The system can be operated
when the electronic key is inside
the vehicle.
When the door cannot be locked by the lock sensor on the upper part of the
door handle
If the door will not lock even when the
topside sensor area is touched, try touch-
ing both the topside and underside sensor
areas at the same time.

1273-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS350/250_EE (OM30C36E)
Alarms and warning indicators
An alarm sounds and warning message displays shown on the multi-informa-
tion display are used to protect against unexpected accidents or theft of the
vehicle resulting from erroneous operation. When a warning message is dis-
played, take appropriate measures based on the displayed message. (P.
757)
When only an alarm sounds, circumstances and correction procedures are as
follows.
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 5 seconds
The trunk was closed
while the electronic
key was still inside the
trunk and all the doors
were locked.
Retrieve the electronic
key from the trunk and
close the trunk lid.
An attempt was made
to lock the vehicle
while a door was open.Close all of the doors
and lock the doors
again.
Interior alarm sounds
continuously
The engine switch was
turned to ACCES-
SORY mode while the
driver’s door was open
(or the driver’s door
was opened while the
engine switch was in
ACCESSORY mode).
Turn the engine switch
off and close the
driver’s door.

1283-2. Opening, closing and locking the doors and trunk
GS350/250_EE (OM30C36E)
Switching the door unlock function
It is possible to set which doors the entry function unlocks using the wireless
remote control.
Turn the engine switch off.
Cancel the intrusion sensor and tilt sensor of the alarm system to prevent
unintended triggering of the alarm during the setting change (if equipped).
(P. 8 9 )
When the indicator light 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 operation is performed, as shown below.
(When changing the setting continuously, release the buttons, wait for at least
5 seconds, and repeat step .)
For vehicles with an alarm: To prevent unintended triggering of the alarm,
unlock the doors using the wireless remote control and open and close a door
once after the settings have been changed. (If a door is not opened within 30
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. 8 7 )
1
2
3
3
Multi-information
displayUnlocking functionBeep
(Left-hand drive
vehicles)
(Right-hand drive
vehicles)
Holding the driver’s door
handle unlocks only the
driver’s door.
Exterior: Beeps 3
times
Interior: Pings once
Holding a passenger’s door
handle unlocks all the
doors.
Holding a door handle
unlocks all the doors.Exterior: Beeps twice
Interior: Pings once

1293-2. Opening, closing and locking the doors and trunk
3
Operation of each component
GS350/250_EE (OM30C36E)
Battery-saving function
The battery-saving function will be activated in order to prevent the elec-
tronic key battery and the vehicle battery from being discharged while the
vehicle is not in operation for a long time.
In the following situations, the smart entry & start system may take some
time to unlock the doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.) of
the outside of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
If the smart entry & start system has not been used for 14 days or longer, the
doors cannot be unlocked at any doors except the driver’s door. In this case,
take hold of the driver’s door handle, or use the wireless remote control or
the mechanical key, to unlock the doors.
Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
Press twice while pressing and
holding . Confirm that the elec-
tronic key indicator flashes 4 times.
While the battery-saving mode is set, the
smart entry & start system cannot be
used. To cancel the function, press any of
the electronic key buttons.