2015 LEXUS LS600H key battery

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LS600hL_U(OM50E41U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior ................. 418
Cleaning and protecting the vehicle inte rior.................. 422
6-2. Maintenance Maintenance requirements ............................ 425
General maintenance.............. 428
Emission inspection and maintenance (I/M)
programs .................................... 432
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 433
Hood ............................................... 436
Positioning a floor jack..............437
Engine compartment ............... 439
12-volt battery ............................. 450
Tires.................................................. 454
Tire inflation pressure ............... 464
Wheels ............................................467
Air conditioning filter ............... 469
Electronic key battery............... 472
Checking and replacing fuses............................................... 474
Headlight aim ...............................479
Light bulbs ..................................... 481 7-1. Essential information
Emergency flashe rs .................. 484
If your vehicle has to be stopped in an
emergency ................................ 485
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................................... 486
If you think something is wrong........................................... 492
If a warning light turns on or a warning buzzer
sounds ......................................... 493
If a warning message is displayed .................................... 503
If you have a flat tire (vehicles with a
spare tire) ................................... 506
If you have a flat tire (vehicles with
run-flat tires) ...............................515
If the hybrid system will not start ......................................... 517
If the shift lever cannot be shifted from P .......................519
If the parking brake cannot be released ................ 520
If the electronic key does not operate properly ..............524
If the 12-volt battery is discharged ..................................527
If your vehicle overheats ......... 530
6Maintenance and care7When trouble arises

911-3. Theft deterrent system
1
For safety and security
LS600hL_U(OM50E41U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the fol-
lowing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the doors ar e locked automatically to prevent intrud-
ers.
●Do not leave the key inside the vehicle when the alarm is operating, and make sure
the key is not inside the vehicle when rech arging or replacing the 12-volt battery.
●A person inside the vehicle opens a door,
the trunk or hood.
●The 12-volt battery is recharged or replaced
when the vehicle is locked. (P. 5 2 8 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.

1213-1. Key information
3
Operation of each component
LS600hL_U(OM50E41U)
To take out the mechanical key:
Electronic keys: Slide the release
lever and take the key out.
Card key: Press the lock release
button and take the key out.
The mechanical key can only be
inserted in one direction, as the key
only has grooves on one side. If the
key cannot be inserted in a lock cylin-
der, turn it over and re-attempt to
insert it.
After using the mechanical key, store
it in the electronic key. Carry the
mechanical key together with the
electronic key. If the electronic key
battery is depleted or the entry func-
tion does not operate properly, you
will need the mechanical key.
( P. 5 2 4 )
Using the mechanical key

1223-1. Key information
LS600hL_U(OM50E41U)
■Electronic keys
●Part of the electronic key uses leather. Refer to P. 422 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 mechanic al 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. 150, 366)
Remove the mechanical key for your own use and provide the attendant with the
electronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by your Lexus dealer using the other
mechanical key and the key number stamped on your key number plate. Keep the
plate in a safe place such as your wallet, not in the vehicle.
●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 po sitive terminal facing
the Lexus emblem.

1243-1. Key information
LS600hL_U(OM50E41U)
NOTICE
■In case of a smart access system with push-button start malfunction or other key-
related problems
Take your vehicle with all the electronic ke ys provided with your vehicle, including
the card key to your Lexus dealer.
■When an electronic key is lost
If the electronic key remains lost, the risk of vehicle theft increases significantly.
Visit your Lexus dealer 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 terminal s 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 an d wipe the battery and terminals. (To
remove the battery cover, lightly grasp and pull it.) If the battery is corroded, have
your Lexus dealer 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 direct ion 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.

1313-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600hL_U(OM50E41U)
*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. 1 3 4 )
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
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

1333-2. Opening, closing and locking the doors and trunk
3
Operation of each component
LS600hL_U(OM50E41U)
■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 30 days or more
●When the electronic key has been left within approximately 6 ft. (2 m) 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. 141)
●The vehicle is locked/unlocked using the mechanical key. ( P. 5 2 4 )

1343-2. Opening, closing and locking the doors and trunk
LS600hL_U(OM50E41U)
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the follow-
ing situations, the communication between the electronic key and the vehicle may be
affected, preventing the smar t access system with push-button start, wireless remote
control and immobilizer system from operating properly. (Ways of coping: P. 5 2 4 )
●When the electronic ke y 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 togeth er with the following devices that emit
radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or person al 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