2013 Lexus IS300h 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)

1503-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Battery-saving function (vehicles with entry function)
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt 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 within approximately 2 m (6 ft.) of the out-
side 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 door except the driver’s door. In this case, hold
the driver’s door handle, or use the wireless remote control or 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 hold-
ing . Confirm that the electronic 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.

1513-2. Opening, closing and locking the doors and trunk
3
Operation of each component
IS300h_EE(OM53B95E)
Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situa-
tions, the communication between the electronic key and the vehicle may be
affected, preventing the smart entry & start system, wireless remote control and
immobilizer system from operating properly. (Ways of coping: P. 548)
When the electronic key battery is depleted
Near a TV tower, electric power plant, gas station, radio station, large display,
airport or other facility that generates strong radio waves or electrical noise
When carrying a portable radio, cellular phone, cordless phone or other wire-
less communication device
When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
When other wireless keys (that emit radio waves) are being used nearby
When carrying the electronic key together with the following devices that emit
radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
If window tint with a metallic content or metallic objects are attached to the rear
window

1523-2. Opening, closing and locking the doors and trunk
IS300h_EE(OM53B95E)
Note for the entry function (if equipped)
Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the
rear bumper center when the trunk is opened.
Do not leave the electronic key on top of the instrument panel or near the door
pockets when exiting the vehicle. Depending on the radio wave reception con-
ditions, it may be detected by the antenna outside the cabin and the doors will
become lockable from the outside, possibly trapping the electronic key inside
the vehicle.
As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the electronic
key can be used to unlock the vehicle.
The doors may unlock or lock if a large amount of water splashes on the door
handle, such as in the rain or in a car wash, when the electronic key is within the
effective range. (The doors will automatically be locked after approximately 30
seconds if the doors are not opened and closed.)
If the wireless remote control is used to lock the doors when the electronic key
is near the vehicle, there is a possibility that the door may not be unlocked by
the entry function. (Use the wireless remote control to unlock the doors.)
Touching the door lock or unlock sensor while wearing gloves may prevent
lock or unlock operation.
If the door handle becomes wet while the electronic key is within the effective
range, the door may lock and unlock repeatedly. In this case, follow the follow-
ing correction procedures to wash the vehicle:
• Place the electronic key in a location 2 m (6 ft.) or more away from the vehi-
cle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart entry &
start system. (P. 150)
If the electronic key is inside the vehicle and a door handle becomes wet during
a car wash, a message may be shown on the multi-information display and a
buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
The lock sensor may not work properly if it comes into contact with ice, snow,
mud, etc. Clean the lock sensor and attempt to operate it again, or use the lock
sensor on the lower part of the door handle.
A sudden handle operation or a handle operation immediately after entering the
effective range may prevent the doors from being unlocked. Touch the door
unlock sensor and check that the doors are unlocked before pulling the door
handle again.
Unlocking the vehicle may take more time if another electronic key is within
the effective range.

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.

2114-2. Driving procedures
4
Driving
IS300h_EE(OM53B95E)
If the hybrid system is stopped with the shift lever in a position other than
P, the power switch will not be turned off but instead be turned to
ACCESSORY mode. Perform the following procedure to turn the switch
off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Power OFF” is displayed on the multi-information
display and then press the power switch once.
Check that “Turn Power OFF” on the multi-information display is off.
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
lever in P, the power switch will automatically turn off. However, this function
cannot entirely prevent 12-volt battery discharge. Do not leave the vehicle with
the power switch in ACCESSORY or ON mode for long periods of time when
the hybrid system is not operating.
Sounds and vibrations specific to a hybrid vehicle
P. 8 2
Electronic key battery depletion
P. 133
When the ambient temperature is low, such as during winter driving conditions
It may take time before the “READY” indicator comes on.
Conditions affecting operation
P. 151
Notes for the entry function
P. 152
If the hybrid system does not start
Check that the shift lever is securely set in P. The hybrid system may not start if
the shift lever is displaced out of P.
The immobilizer system may not have been deactivated. (P. 90)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
When stopping the hybrid system with the shift lever in a position
other than P
1
2
3
4

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
1
2
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.