2013 Lexus IS300h change key battery

1463-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Trunk light (if equipped)
The trunk light turns on when the trunk is opened.
Function to prevent the trunk being locked with the electronic key inside
When all doors are locked, closing the trunk lid with the electronic key left
inside the trunk will sound an alarm.
In this case, the trunk lid can be opened pressing the trunk release button on the
trunk lid.
If the spare electronic key is put in the trunk with all the doors locked, the key
confinement prevention function is activated so the trunk can be opened. In
order to prevent theft, take all electronic keys with you when leaving the vehi-
cle.
If the electronic key is put in the trunk with all the doors locked, the key may
not be detected depending on the location of the key and the surrounding radio
wave conditions. In this case, the key confinement prevention function cannot
be activated, causing the doors to lock when the trunk is closed. Make sure to
check where the key is before closing the trunk.
The key confinement prevention function cannot be activated if any one of the
doors is unlocked. In this case, open the trunk using the trunk opener.
Using the mechanical key
The trunk can be also opened using the mechanical key. (P. 548)
If the smart entry & start system or the wireless remote control does not operate
properly
Use the mechanical key to unlock the trunk. (P. 548)
Replace the key battery with a new one if it is depleted. (P. 472)
When leaving a key to the vehicle with a parking attendant
P. 132
Customization
The trunk unlocking operation can be changed. (Customizable features: P.
575)

1863-5. Opening, closing the windows and moon roof
IS300h_EE(OM53B95E)
Door lock linked window operation
The power windows can be opened and closed using the mechanical key.*
(P. 548)
The power windows can be opened and closed using the wireless remote con-
trol.* (P. 136)
*: 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. 575)
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 protection
function.
The jam protection function may not work if something gets caught just
before the window fully closes.

2124-2. Driving procedures
IS300h_EE(OM53B95E)
Steering lock
After turning the power switch off and opening and closing the doors, the steer-
ing wheel will be locked due to the steering lock function. Operating the power
switch again automatically cancels the steering lock.
When the steering lock cannot be released
Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, operation of the motor may
be suspended 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” is displayed on the multi-information dis-
play
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional 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. 516
If the electronic key battery is depleted
P. 545
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 turning the
power switch off, please wait a few seconds before restarting the hybrid system.
If the smart entry & start system has been deactivated by a customized setting
P. 548 “Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is in P. Press the
power switch while turning the steering
wheel left and right.

4126-2. Using the interior lights
IS300h_EE(OM53B95E)
Turns the light on/off
Turns the door position on/off
Turns the light on/off
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.
If the interior lights remain on when the door is not fully closed and the interior
light main switch is in the door position, the lights will go off automatically
after 20 minutes.
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 575)
Interior lights
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Personal lights
FrontRear
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than neces-
sary when the hybrid system is off.

5508-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the power
switch.
When the electronic key is detected,
a buzzer sounds and the power
switch will turn to ON mode.
When the smart entry & start system
is deactivated in customization set-
ting, the power switch will turn to
ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the
multi-information display.
Press the power switch.
In the event that the hybrid system still cannot be started, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
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 elec-
tronic key battery be replaced immediately when the battery is depleted. (P.
472)
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. 210)
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. 575)
Check if battery-saving mode is set. If it is set, cancel the function. (P. 150)
Starting the hybrid system
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