2013 Lexus GS300h change key battery

1543-2. Opening, closing and locking the doors and trunk
GS450h_300h_OM_OM30D53E_(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
hybrid system stops. (P. 867)
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. 777)
• 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. 7 7 7
Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features: P. 942)
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. 168, 908)
Starting the hybrid system and changing power switch modes:P. 9 0 9
Stopping the hybrid system: P. 2 4 7

1693-2. Opening, closing and locking the doors and trunk
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Operation of each component
GS450h_300h_OM_OM30D53E_(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 4 3
Alarm (if equipped)
Using the wireless remote control to lock the doors will set the alarm system.
(P. 97)
Conditions affecting operation
P. 1 5 0
If the wireless remote control does not operate properly
Locking and unlocking the doors and opening the trunk: Use the mechanical
key.
(P. 908)
Electronic key battery depletion
P. 1 5 4
When the electronic key battery is fully depleted
P. 7 7 7
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 professional for details.
Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: P. 942)

2173-5. Opening, closing the windows and moon roof
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Operation of each component
GS450h_300h_OM_OM30D53E_(EE)
Door lock linked window operation
The power windows can be opened and closed using the mechanical key.*
(P. 908)
The power windows can be opened and closed using the wireless remote
control.
* (P. 168)
*: These settings must be customized at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
When the 12-volt battery is disconnected
The window lock switch is disabled. If necessary, press the window lock
switch after reconnecting the 12-volt 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 power 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. 942)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
Closing the windows
Check to make sure that all passengers do not have any part of their body
in a position where it could be caught when a window is being operated.
Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in
some instances, even death.
Jam protection function
Never use any part of your body to intentionally activate the jam protec-
tion function.
The jam protection function may not work if something gets caught just
before the window fully closes.

2514-2. Driving procedures
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Driving
GS450h_300h_OM_OM30D53E_(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 sus-
pended if the hybrid system is turned on and off repeatedly in a short period
of time. In this case, refrain from operating the hybrid system. After about 10
seconds, the steering lock motor will resume functioning.
When “Check Entry & Start System” will be displayed on the multi-informa-
tion display
The system may be malfunctioning. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional immediately.
If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the power
switch with the shift lever in P and the brake pedal depressed, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional immediately.
If the hybrid system is malfunctioning
P. 8 4 0
If the electronic key battery is depleted
P. 9 0 2
Operation of the power switch
When operating the power switch, one short, firm press is enough. If the
switch is pressed improperly, the hybrid system may not start or the power
switch mode may not change. It is not necessary to press and hold the
switch.
If attempting to restart the hybrid system immediately after turning the
power switch off, the hybrid system may not start in some cases. After turn-
ing the power switch off, please wait a few seconds before restarting the
hybrid system.
If the smart entry & start system has been deactivated in a customized setting “Steering Lock active” will be displayed
on the multi-information display.
Check that the shift lever is set in P. Press
the power switch while turning the steer-
ing wheel left and right.

6865-5. Using the interior lights
GS450h_300h_OM_OM30D53E_(EE)
Illuminated entry system
The lights automatically turn on/off according to power switch mode, the
presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
To prevent 12-volt battery discharge
If the interior lights remain on when the power 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. 942)
NOTICE
To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.

9127-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when
stopping the hybrid system.
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 779)
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 power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the
switch is pressed.(P. 247)
When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: P. 942)
Check if battery-saving mode is set. If it is set, cancel the function. (P.
149)
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