Page 155 of 676

1553-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
Interior alarm pings
continuously.
The power switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the power switch
was in ACCESSORY
mode).
Turn the power switch off
and close the driver’s
door.
The power switch was
turned off while the
driver’s door was open.
Close the driver’s door.
Interior alarm sounds
continuously.*1
When the power switch is
in ON or ACCESSORY
mode, an attempt was
made to open the door
and exit the vehicle, and
the shift lever was not in P.
Shift the shift lever to P
and turn the power switch
off.
Interior and exterior
alarms sound continu-
ously.*1
When the power switch is
in ON or ACCESSORY
mode, the driver’s door
was closed after the key
was carried outside the
vehicle, and the shift lever
was not in P.
Shift the shift lever to P,
turn the power switch off
and close the driver’s
door again.
Interior alarm pings
once.*1
The electronic key has a
low battery.
Replace the electronic
key battery.
An attempt was made to
start the hybrid system
without the electronic key
being present, or the
electronic key was not
functioning normally.
Start the hybrid system
with the electronic key
present.*2
AlarmSituationCorrection procedure
Page 156 of 676
1563-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
*1: A warning message will be shown on the multi-information display in the instru-
ment cluster.
*2: If the hybrid system does not start when the electronic key is inside the vehicle, the
electronic key battery may be depleted or there may be difficulties receiving the
signal from the key. ( P. 159)
Interior alarm pings once
and exterior alarm
sounds 3 times.*1
The driver’s door was
closed after the key was
carried outside the vehi-
cle, and the power switch
was not turned off.
Turn the power switch off
and close the driver’s
door again.
An occupant carried the
electronic key outside the
vehicle and closed the
door while the power
switch was not off.
Bring the electronic key
back into the vehicle.
AlarmSituationCorrection procedure
Page 158 of 676
1583-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
■Battery-saving function
In the following circumstances, the entry function is disabled in order to prevent the
12-volt battery from discharging and the electronic key battery from depleting.
●When the entry function has not been used for a month or more
●When the electronic key has been left within approximately 2 m (6 ft.) of the vehi-
cle for 10 minutes or more
The system will resume operation when
●The vehicle is locked using the door handle lock switch when carrying the elec-
tronic key on your person.
●The vehicle is locked/unlocked using the wireless remote control function.
( P. 171)
●The vehicle is locked/unlocked using the mechanical key. (P. 603)
Page 159 of 676

1593-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
■Conditions affecting operation
The smart entry & start system uses weak radio waves. In the following situations, the
communication between the electronic key and the vehicle may be affected, pre-
venting the smart entry & start system, wi reless remote control and immobilizer sys-
tem from operating properly. (Ways of coping: P. 603)
●When the electronic key battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wireless
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 multiple electronic keys are in the vicinity
●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
Page 160 of 676

1603-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
■Note for the entry function
●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.
• The electronic key is on the instrument panel, rear package tray or floor, or in the
door pockets or glove box when the hybrid system is started or power switch
modes are changed.
●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 condi-
tions, it may be detected by the antenna outside the cabin and the door 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 th e doors detecting the electronic key can
be used to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start the
hybrid system if the electronic key is near the window.
●The doors may unlock 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 door will automatically be locked after approximately 30 seconds if the doors
are not opened and closed.)
●Gripping the door handle when wearing a glove may not unlock the door.
●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.)
●A sudden approach to the effective range or door handle may prevent the doors
from being unlocked. In this case, return the door handle to the original position
and check that the doors unlock before pulling the door handle again.
Page 161 of 676

1613-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600h/LS600hL_EE(OM50G20E)
■When the vehicle is not driven for extended periods
To prevent theft of the vehicle, do not leave the electronic key within 2 m (6 ft.) of the
vehicle.
■Alarm (if equipped)
Using the smart entry & start system to lock the doors will set the alarm system.
( P. 103)
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get the
electronic key too close to the vehicle when operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate properly. (The
alarm may go off accidentally, or the door lock prevention function may not oper-
ate.)
●Do not leave the electronic key inside the trunk.
The key confinement prevention function may not operate, depending on the loca-
tion of the key (close to a spare tire [if equipped], the inside edge of the trunk), con-
ditions (inside a metal bag, close to metallic objects) and the radio waves in the
surrounding area. ( P. 182)
■If the smart entry & start system does not operate properly
●Locking and unlocking the doors and trunk: Use the mechanical key. (P. 603)
●Starting the hybrid system: P. 605
Page 162 of 676

1623-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
■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 is low, an alarm will sound in the cabin when the hybrid system is
started or stopped. ( P. 154)
●The battery becomes depleted even if the electronic key is not used because the
key always receives radio waves. If the smart entry & start system or the wireless
remote control does not operate, or the detection area becomes smaller, the bat-
tery may be depleted. Replace the battery when necessary. ( P. 532)
●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. 532
■Customization
Settings (e. g. smart entry & start system) can be changed.
(Customizable features P. 634)
Page 172 of 676

1723-2. Opening, closing and locking the doors and trunk
LS600h/LS600hL_EE(OM50G20E)
■Operation signals
Doors:
The emergency flashers flash to indicate that the doors have been locked/unlocked.
(Locked: once; Unlocked: twice)
Windows and moon roof:
A buzzer sounds to indicate that th e windows and moon roof are operating.
■Welcome light illumination control
P. 150
■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. 150
■Alarm (if equipped)
Using the wireless remote control to lock the doors will set the alarm system.
( P. 103)
■Conditions affecting operation
P. 159
■If the wireless remote control does not operate properly
Locking and unlocking the doors and trunk: Use the mechanical key. ( P. 603)
■Electronic key battery depletion
P. 162
■When the electronic key battery is fully depleted
P. 532
■Customization
Settings (e.g. wireless remote control system) can be changed.
(Customizable features P. 634)