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1383-2. Opening, closing and locking the doors and trunk
GS350_250_OM_OM30E16E_(EE)
■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. 5 74 )
●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 neces-
sary. ( →P. 4 8 9 )
• 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
• Induction cookers
■When the electronic key battery is fully depleted
→ P. 4 8 9
■Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features: →P. 650)
■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. 1 5 5 , 6 1 8 )
●Starting the engine and changing engine switch modes: →P. 6 1 9
●Stopping the engine: →P. 2 3 8
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Page 156 of 688

1563-2. Opening, closing and locking the doors and trunk
GS350_250_OM_OM30E16E_(EE)
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer
sounds continuously for 5 seconds. Fully close the door to stop the buzzer, and lock
the vehicle once more.
■Security feature
→P. 1 2 7
■Alarm (if equipped)
Using the wireless remote control to lo ck the doors will set the alarm system.
( → P. 8 6 )
■Conditions affecting operation
→P. 1 3 4
■If the wireless remote control does not operate properly
Locking and unlocking the doors and opening the trunk: Use the mechanical key.
(→ P. 6 1 8 )
■Electronic key battery depletion
→P. 1 3 8
■When the electronic key battery is fully depleted
→P. 4 8 9
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any
authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional for details.
■Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: →P. 650)
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Page 206 of 688
2063-5. Opening, closing the windows and moon roof
GS350_250_OM_OM30E16E_(EE)
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.*
( → P. 6 1 8 )
●The power windows can be opened and closed using the wireless remote control.*
(→ P. 1 5 5 )
*: These settings must be customized at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■When the battery is disconnected
The window lock switch is disabled. If necessary, press the window lock switch after
reconnecting the battery.
■Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the
instrument cluster when the engine switch is turned off and the driver’s door is
opened with the power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: →P. 650)
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Page 241 of 688

2414-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
■When “Check Entry & Start System” will be displayed on the multi-information dis-
play
The system may be malfunctioning. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional imme-
diately.
■If the electronic key battery is depleted
→P. 4 8 9
■Operation of the engine switch
●When operating the engine switch, one short, firm press is enough. If the switch is
pressed improperly, the engine may not start or the engine switch mode may not
change. It is not necessary to press and hold the switch.
●If attempting to restart the engine immediately after turning the engine switch off,
the engine may not start in some cases. After turning the engine switch off, please
wait a few seconds before restarting the engine.
■If the smart entry & start system has been deactivated in a customized setting
→P. 6 1 8
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
engine switch while turning the steering
wheel left and right.
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4 7:11 PM
Page 401 of 688
4015-3. Using the interior lights
5
Interior features
GS350_250_OM_OM30E16E_(EE)
■Illuminated entry system
The lights automatically turn on/off according to engine switch mode, the presence
of the electronic key, whether the doors are locked/unlocked, and whether the doors
are opened/closed.
■To prevent battery discharge
If the interior lights remain on when the engine switch is turned off, the lights will go
off automatically after 20 minutes.
■Customization
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 650)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.
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6207-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stop-
ping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. (→P. 4 8 9 )
■Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered.
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed.( →P. 2 3 8 )
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features: →P. 6 5 0 )
●Check if battery-saving mode is set. If it is set, cancel the function. ( →P. 1 3 3 )
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof after checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passengers to get caught in power window and moon roof.
3
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