stop Lexus GS250 2012 User Guide

801-2. Theft deterrent system
GS350/250_EE (OM30C36E)
Engine immobilizer system
The indicator light flashes after
the engine switch has been
turned off to indicate that the
system is operating.
The indicator light stops flashing
after the engine switch has been
turned to ACCESSORY or
IGNITION ON mode to indicate
that the system has been can-
celed.
System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
Conditions that may cause the system to malfunction
If the grip portion of the key is in contact with a metallic object
If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
The vehicle’s keys have built-in transponder chips that prevent the
engine from starting if a key has not been previously registered in
the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.

871-2. Theft deterrent system
1
GS350/250_EE (OM30C36E)
For safety and security
Do one of the following to deactivate or stop the alarm:
Unlock the doors or open the trunk using the entry function or
wireless remote control.
Turn the engine switch to ACCESSORY or IGNITION ON
mode, or start the engine. (The alarm will be deactivated or
stopped after a few seconds.)
System maintenance
The vehicle has a maintenance-free type alarm system.
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of
the following:
Nobody is in the vehicle.
The windows and moon roof (if equipped) are closed before the alarm is
set.
No valuables or other personal items are left in the vehicle.
Deactivating or stopping the alarm

881-2. Theft deterrent system
GS350/250_EE (OM30C36E)
Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
Alarm-operated door lock
When the alarm is operating, the doors are locked automatically to prevent
intruders.
Customization
The alarm can be set to deactivate when the mechanical key is used to
unlock.
(Customizable features: P. 855)
The doors are unlocked using the
mechanical key.
A person inside the vehicle opens a
door, the trunk or hood.
The battery is recharged or replaced
when the vehicle is locked. (P. 826)
NOTICE
To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

891-2. Theft deterrent system
1
GS350/250_EE (OM30C36E)
For safety and security
The intrusion sensor detects intruders or movement in the vehi-
cle.
The tilt sensor detects changes in vehicle inclination, such as
when the vehicle is towed away. (if equipped)
This system is designed to deter and prevent vehicle theft but does
not guarantee absolute security against all intrusions.
Setting the intrusion sensor and tilt sensor
The intrusion sensor and tilt sensor will be set automatically
when the alarm is set. (P. 86)
Canceling the intrusion sensor and tilt sensor
If you are leaving pets or other moving things inside the vehicle,
make sure to stop the intrusion sensor and tilt sensor before set-
ting the alarm, as they will respond to movement inside the vehi-
cle.
Turn the engine switch off.
Press the intrusion sensor
and tilt sensor cancel
switch.
A message will be shown on the
multi-information display in the
instrument cluster.
Press the switch again to re-
enable the intrusion sensor and
tilt sensor.
Intrusion sensor and tilt sensor
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2

101
2 2. Instrument cluster
Instrument cluster
GS350/250_EE (OM30C36E)
The meters and display illuminate when
The engine switch is in IGNITION ON mode.
Instrument panel brightness adjustment
The instrument panel brightness levels when the tail lights are on and off can
be adjusted individually. However, when the surroundings are bright (day-
time, etc.), turning on the tail lights will not change the instrument panel
brightness.
Limitation of brightness adjustment
The brightness of the instrument panel lights is automatically adjusted based
on the light sensor detecting how bright the surroundings are. However, if the
instrument panel brightness has been manually set to either the brightest or
darkest setting, the automatic adjustment will not be performed.
ECO lamp and SPORT lamp
When sport mode is selected, SPORT lamp (red) will illuminate.
When all of the following conditions are satisfied and Eco-friendly driving,
ECO lamp (blue) will illuminate. (ECO lamp will become brighter the more
Eco-friendly driving you perform. Also, while the acceleration exceeds
Zone of Eco driving, ECO lamp turns off. (P. 109) However, when Eco
drive mode is selected, while the acceleration exceeds Zone of Eco driving,
ECO lamp does not turn off.):
• Driving with the shift lever in D
• Paddle shift switch is not operated.
• Either normal mode or Eco drive mode is selected.
• The vehicle speed is approximately 130 km/h (80 mph) or below.
Customization
Settings (e.g. on/off operation of ECO lamp) can be changed.
(Customizable features P. 857)
NOTICE
To prevent damage to the engine and its components
Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 829)

1072. Instrument cluster
2
Instrument cluster
GS350/250_EE (OM30C36E)While the vehicle is stopped,
press the “DISP” button until
the “Settings” screen appears.
Press and hold the “DISP”
button until the screen
changes.
Press and hold the “DISP”
button after selecting the
desired setting item by press-
ing the “DISP” button.
Setting up the displays
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2
3

109
2 2. Instrument cluster
Instrument cluster
GS350/250_EE (OM30C36E)
System check display
After turning the engine switch to IGNITION ON mode, “SYSTEM
CHECK” is displayed while system operation is checked.
Eco Driving Indicator Zone Display
Eco Driving Indicator will not operate in the following conditions:
The shift lever is anything other than D.
Paddle shift switch is operated.
Neither normal mode nor Eco drive mode is selected. (P. 326)
The vehicle speed is approximately 130 km/h (80 mph) or higher.
Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
When stopped, or driving at low speeds (less than 20 km/h [12 mph])
When the outside temperature has changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
Setting display automatic cancelation
In the following situations, setting display in which the settings can be
changed through the “DISP” button will automatically be turned off.
When a warning message appears while the setting display is displayed
When the vehicle begins to move while the setting display is displayed Suggests Zone of Eco driving and Eco
driving ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds Zone of Eco
driving, the right side of Eco Driving
Indicator Zone Display blinks.
Zone of Eco driving
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2

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.

1343-2. Opening, closing and locking the doors and trunk
GS350/250_EE (OM30C36E)
Electronic key battery depletion
The standard battery life is 1 to 2 years. (The card key battery life is about a
year and a half.)
If the battery becomes low, an alarm will sound in the cabin when the
engine stops. (P. 779)
As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms
indicate that the electronic key battery may be depleted. Replace the battery
when necessary. (P. 695)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
To avoid serious deterioration, do not leave the electronic key within 1 m (3
ft.) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
•Table lamps
• Glass top ranges
When the electronic key battery is fully depleted
P. 6 9 5
Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features: P. 855)
If the smart entry & start system has been deactivated in a customized setting
Locking and unlocking the doors and opening the trunk:
Use the wireless remote control or mechanical key. (P. 141, 821)
Starting the engine and changing engine switch modes:P. 8 2 2
Stopping the engine: P. 2 0 8