2017 LEXUS LS600H battery

1423-1. Key information
LS600h/LS600hL_EE(OM50G20E)
■Electronic keys
●Part of the electronic key uses leather. Refer to P. 480 for details on cleaning the
leather portion.
●When cleaning the metallic portion, wet a cloth and firmly wring out any excess
water from it, then thoroughly wipe off any dirt.
●When not using the electronic key for an extended period of time, store it in a dry
place of normal temperature away from direct sunlight and interior light after
removing any dirt.
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside the card key should be used only if a prob-
lem arises, such as when the card key does not operate properly.
●If it is difficult to take out the mechanical key, push down the lock release button
using a pen tip etc. If it is still difficult to pull it out, use a coin etc.
■When required to leave the vehicle’s key with a parking attendant
Turn the trunk opener main switch off and lock the glove box as circumstances
demand. ( P. 181, 433)
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
●To store the mechanical key in the card key,
insert it while pressing the lock release but-
ton.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, reinstall
the battery with the positive terminal facing
the Lexus emblem.

1483-1. Key information
LS600h/LS600hL_EE(OM50G20E)
NOTICE
■In case of a smart entry & start system malfunction or other key-related problems
Take your vehicle with all the electronic keys provided with your vehicle, including
the card key, to any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
■When an electronic key is lost
If the electronic key remains lost, the risk of vehicle theft increases significantly.
Visit any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately with all remaining electronic keys and the card
key that was provided with your vehicle.
■Handling the card key
●Do not apply excess force when inserting the mechanical key into the card key.
Doing so may damage the card key.
●If the battery or card key terminals get wet, the battery may corrode.
If the key is dropped into water, or if drinking water etc. is spilled on the key,
immediately remove the battery cover and wipe the battery and terminals. (To
remove the battery cover, lightly grasp and pull it.) If the battery is corroded, have
any authorized Lexus dealer or repairer, or another duly qualified and equipped
professional replace the battery.
●Do not crush the battery cover or use a screwdriver to remove the battery cover.
Forcibly removing the battery cover may bend or damage the key.
●If the battery cover is frequently removed, the battery cover may become loose.
●When installing the battery, make sure to check the direction of the battery.
Installing the battery in the wrong direction may cause the battery to deplete rap-
idly.
●The surface of the card key may be damaged, or its coating may peel off in the
following situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.

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

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

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)

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

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)

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)