2019 LEXUS LS500H battery

1083-1. Key information
LS500h_OM_(U)_1809
3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys
• Operating the smart access system with push-button start ( 
P.123)
• Operating the wireless remote control function ( 
P.110)
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P.123)
■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
problem 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.
●To store the mechanical key in the card
key, insert it while pressing the lock
release button.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
■When riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag etc., ensure that
the buttons are not likely to be pressed acci-
dentally. Pressing a button may cause the
electronic key to emit radio waves that
could interfere with the operation of the air-
craft.
■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 becomes low, an alarm will
sound in the cabin and a message will be
shown on the multi-information display
when the hybrid system is stopped.
Keys
The keys
A
B
C
D

1093-1. Key information
LS500h_OM_(U)_1809
3
Before driving
●To reduce key battery depletion when the
electronic key is to not be used for long
periods of time, set the electronic key to
the battery-saving mode. ( P.125)
●As the electronic ke y always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
•The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not
leave the electronic ke y within 3 ft. (1 m)
of the following electr ical 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
■Replacing the battery
 P.409
■Confirmation of the number of regis-
tered keys
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
■If “A New Key has been Registered
Contact Your Dealer for Details” is
shown on the multi-information display
This message will be displayed each time
the driver’s door is opened when the doors
are unlocked from the outside for approxi-
mately 10 days after a new electronic key
has been registered.
If this message is disp layed but you have not
had a new electronic key registered, ask
your Lexus dealer to check if an unknown
electronic key (other than those in your
possession) has been registered.
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for a long period of time.
●Do not get the keys wet or wash them
in an ultrasonic washer etc.
●Do not attach metallic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers,
or medical electrical equipment, such
as low-frequency therapy equipment.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric applianc es within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key-rela ted problems
 P.443
■When an electronic key is lost
 P.442
■Handling the card key (if equipped)
●Do not apply excess force when insert-
ing the mechanical key into the card
key. Doing so may damage the card
key.

1103-1. Key information
LS500h_OM_(U)_1809
The electronic keys are equipped with
the following wireless remote control:Locks the doors (
P.112)
Unlocks the doors ( P.112)
Opens the windows and moon
roof
* (  P.112)
Opens the trunk ( P.119)
Sounds the alarm
*: This setting must be customized at your Lexus dealer.
■Theft deterrent panic mode
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will flash
to deter any person from trying to break
into or damage your vehicle.
To stop the alarm, press any button on the
electronic key.
To take out the mechanical key, push
the 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
NOTICE
●If the battery or card key terminals get
wet, the battery may corrode and the
card key may stop working.
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 co ver, 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 ba ttery, make sure
to check the direction of the battery.
Installing the battery in the wrong
direction may cause the battery to
deplete rapidly.
●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.
Wireless remote control
Using the mechanical key
A
B
C
D
E

1113-1. Key information
LS500h_OM_(U)_1809
3
Before driving
a lock cylinder, 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 function does not operate properly,
you will need the mechanical key.
(  P.443)
■When required to leave the vehicle’s
key with a parking attendant
Turn the trunk opener main switch off
(  P.122) and lock the glove box ( P.346)
as circumstances demand.
Remove the mechanical key for your own
use and provide the attendant with the elec-
tronic key only.
■If you lose your mechanical keys
 P.442
■If a wrong key is used
The key cylinder rotates freely, isolated
from the internal mechanism.

1133-2. Opening, closing and locking the doors and trunk
LS500h_OM_(U)_1809
3
Before driving
To prevent unintended triggering of the
alarm, unlock the doors using the wireless
remote control and open and close a door
once after the settings have been changed.
(If a door is not opened within 60 seconds
after is pressed, the doors will be
locked again and the alarm will automati-
cally be set.)
In a case that the alarm is triggered, imme-
diately stop the alarm. ( P.73)
■Impact detection door lock release sys-
tem
In the event that the vehicle is subject to a
strong impact, all the doors are unlocked.
Depending on the force of the impact or the
type of accident, however, the system may
not operate.
■Operation signals
A buzzer sounds and the emergency flash-
ers flash to indicate that the doors have
been locked/unlocked. (Locked: once;
Unlocked: twice)
A buzzer sounds to indicate that the win-
dows and moon roof are operating.
■Security feature
If a door is not opened within approximately
60 seconds after the vehicle is unlocked, the security feature automatically locks the
vehicle again.
■When the doors cannot be locked by the
lock sensor on the upper part of the
door handle
When the doors cannot be locked even if
the lock sensor on th e upper part of the
door handle is touched by a finger, touch
the lock sensor with the palm.
If you are wearing gloves, remove them.
■Open door warning 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 vehi-
cle once more.
■Setting the alarm
Locking the doors will set the alarm system.
(  P.73)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
 P.125
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to lock and unlock
the doors. ( P.443)
Replace the key battery with a new one if it
is depleted. ( P.409)
■If the 12-volt batte ry is discharged
The doors cannot be locked and unlocked
using the smart access system with
push-button start or wireless remote con-
trol. Lock or unlock the doors using the
mechanical key. ( P.443)
■Customization
Some functions can be customized.
Multi-information display/BeepUnlocking function
Exterior: Beeps 3 times
Interior: Pings once
Holding the driver’s
door handle unlocks
only the driver’s
door.
Holding any of the
passenger door
handles unlocks all
the doors.
Exterior: Beeps twice
Interior: Pings once
Holding a door han-
dle unlocks all the
doors.

1183-2. Opening, closing and locking the doors and trunk
LS500h_OM_(U)_1809
■Trunk opener switch
Press the trunk opener switch.
The trunk lid will fully open.
WARNING
●On an incline, the trunk lid may sud-
denly shut after it opens automatically.
Make sure the trunk lid is fully open
and secure before using the trunk.
●In the following situations, the power
trunk opener and closer may detect an
abnormality and automatic operation
may be stopped. In this case, the trunk
lid has to be operated manually. Take
extra care in this situation, as the
stopped trunk lid ma y suddenly shut,
causing an accident.
• When the trunk lid contacts an obsta- cle
• When the 12-volt battery voltage sud- denly drops, such as when the power
switch is turned to ON mode or the
hybrid system is started during auto-
matic operation
●Do not attach any accessories other
than genuine Lexus parts to the trunk
lid. The power trunk opener and closer
may not operate, caus ing itself to mal-
function, or the trun k lid may suddenly
shut again after it is opened.
■Hands Free Power Trunk Lid (if
equipped)
Observe the following precautions.
Failure to do so may cause serious injury.
●Exhaust gasses cause the exhaust
pipes to become quite hot. When
operating the Hands Free Power Trunk
Lid, be careful not to touch the exhaust
pipe.
●Do not operate the Hands Free Power
Trunk Lid if there is little space under
the rear bumper.
■Jam protection function
Observe the following precautions.
Failure to do so may cause serious injury.
●Never use any part of your body to
intentionally activate the jam protec-
tion function.
●The jam protection function may not
work if something gets caught just
before the trunk lid fully closes. Be
careful not to catch fingers or anything
else in the trunk lid.
●The jam protection function may not
work depending on the shape of the
object that is caught. Be careful not to
catch fingers or anything else.
NOTICE
■To prevent trunk easy closer malfunc-
tions
Do not apply force to the trunk lid while
the trunk easy closer is operating.
■To prevent damage to the power
trunk opener and closer
●Make sure that there is no luggage or
snow on the trunk lid before operating
the power trunk opener and closer. In
addition, make sure that there is no ice
between the trunk lid and frame that
prevents movement of the trunk lid.
Operating the power trunk opener
and closer when excessive load is
present on the trunk lid may cause a
malfunction.
●Do not apply excessive force to the
trunk lid while the power trunk opener
and closer is operating.
Opening/closing the trunk

1213-2. Opening, closing and locking the doors and trunk
LS500h_OM_(U)_1809
3
Before driving
trunk lid with the electr onic 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 acti-
vated so the trunk can be opened. In
order to prevent theft, take all electronic
keys with you when leaving the vehicle.
●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 confine-
ment prevention function cannot be acti-
vated, 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.
■Overload protection function
The trunk lid will not operate when exces-
sive load is present on the top of the trunk
lid.
■Fall-down protection function
While the trunk lid is opening automatically,
applying excessive force to it will stop the
opening operation to prevent the trunk lid
from rapidly falling down.
■Jam protection function
While the trunk lid is closing automatically,
the trunk lid will stop closing and open if
something gets caught.
■Internal trunk release lever
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the inside
of the trunk lid to the side.
The lever will continue to glow for some
time after the trunk lid is closed.
■Using the mechanical key
The trunk can be also opened using the
mechanical key. ( P.443)
If the trunk is unlocked using the mechani-
cal key, the power trunk lid and trunk easy
closer will not be operational. To return
them to an operational state, fully close the
trunk lid by hand.
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to unlock the trunk.
(  P.443)
Replace the key battery with a new one if it
is depleted.
■Hands Free Power Trunk Lid operating
conditions (if equipped)
●When the Hands Free Power Trunk Lid
(kick sensor) operatio n setting is turned
on and the power swit ch is turned off
●When an electronic key is carried within
the operation range
■Situations in which the Hands Free
Power Trunk Lid may not operate prop-
erly (if equipped)
In the following situations, the Hands Free
Power Trunk Lid may not operate properly:
●When a foot remain s under the rear
bumper
●If the rear bumper is strongly hit with a
foot or is touched for a while
If the rear bumper has been touched for a
while, wait for a short time before
attempting to operate the Hands Free
Power Trunk Lid again.
●When standing excessively close to the
rear bumper
●When an external radio wave source
interferes with the communication

1243-2. Opening, closing and locking the doors and trunk
LS500h_OM_(U)_1809
■Effective range (areas within which the
electronic key is detected)When locking or unlocking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of an outside door handle. (Only the doors
detecting the key can be operated.) When opening the trunk
The system can be operated when the
electronic key is within about 2.3 ft. (0.7 m)
of the trunk release button. When starting the hybrid system or
changing power switch modes
The system can be operated when the
electronic key is inside the vehicle.
■Alarms and warning messages
An alarm sounds and warning messages
are displayed on the multi-information dis-
play to protect against unexpected acci-
dents or theft of the vehicle resulting from
erroneous operation. When a warning mes-
sage is displayed, take appropriate mea-
sures based on the displayed message.
(  P.434)
When only an alarm sounds, circumstances
and correction procedures are as follows.
●When an exterior alarm sounds once for
5 seconds
●When an interior alarm sounds continu-
ously
■If “Key Detected in Vehicle” is shown on
the multi-information display
An attempt was made to lock the doors
using the smart access system with
push-button start while the electronic key
was still inside the vehicle. Retrieve the elec-
tronic key from the vehicle and lock the
doors again.
■Battery-saving function
The battery-saving function will be acti-
vated in order to prevent the electronic key
battery and the 12-volt battery from being
discharged while the vehicle is not in opera-
tion for a long time.
●In the following situations, the smart
access system with pu sh-button start may
A
B
C
SituationCorrection
procedure
An attempt was made to lock the vehicle while a door was open.Close all of the doors and lock the doors again.
The trunk was closed
while the electronic key was still inside the trunk and all the doors were locked.Retrieve the
electronic key
from the trunk and close the trunk lid.
SituationCorrection procedure
The power switch was
turned to ACCESSORY mode while the driver’s door was open (The
driver’s door was opened when 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.