2018 LEXUS LS500 key battery

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LS500_OM_OM50F54U_(U) Pictorial index Search by illustration
For safety
and security Make sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicators Reading driving-related information
(Main topics: Meters, multi-information display)
Before driving Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving Operations and advice which are necessary for driving
(Main topics: Starting engine, refueling)
Interior features Usage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and care Caring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arises What to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specifications Vehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For owners Reporting safety defects for U.S. owners, seat belt and
SRS airbag instructions for Canadian owners
Index Search by symptom
Search alphabetically

4 TABLE OF CONTENTS
LS500_OM_OM50F54U_(U) 5-6. Using the other interior features
Other interior features .............. 342
Garage door opener.................. 349
Lexus Enform Safety Connect
........................................................... 355
6-1. Maintenance and care
Cleaning and protecting the vehi-
cle exterior ................................... 362
Cleaning and protecting the vehi-
cle interior .................................... 365
6-2. Maintenance
Maintenance requirements ..... 368
General maintenance ................ 369
Emission inspection and mainte-
nance (I/M) programs ............ 372
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
........................................................... 373
Hood.................................................. 375
Positioning a floor jack............... 375
Engine compartment.................. 377
Battery .............................................. 384
Tires ................................................... 386
Replacing the tire ......................... 396
Tire inflation pressure ................. 399
Wheels............................................... 401
Air conditioning filter.................. 402
Electronic key battery ................ 403
Checking and replacing fuses
........................................................... 405
Light bulbs ....................................... 408 7-1. Essential information
Emergency flashers ..................... 410
If your vehicle has to be stopped in
an emergency ............................. 410
7-2. Steps to take in an emergency
If your vehicle needs to be towed
............................................................ 412
If you think something is wrong
........................................................... 416
Fuel pump shut off system .......... 417
If a warning light turns on or a warn-
ing buzzer sounds...................... 418
If a warning messa ge is displayed
.......................................................... 428
If you have a flat tire .................... 432
If the engine will not start .......... 433
If you lose your keys.................... 435
If the fuel filler door cannot be
opened .......................................... 435
If the electronic key does not oper-
ate properly ................................. 436
If the vehicle battery is discharged
.......................................................... 438
If your vehicle overheats ........... 443
If the vehicle becomes stuck ... 446
8-1. Specifications
Maintenance data (fuel, oil level,
etc.) ................................................. 448
Fuel information............................ 457
Tire information ............................ 4596
Maintenance and care 7
When trouble arises
8
Vehicle specifications

92 3-1. Key information
LS500_OM_OM50F54U_(U) 3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys• Operating the smart access system with
push-button start ( →
P.107 )
• Operating the wireless remote control
function ( →
P.94 )
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)Operating the smart access system with
push-button start ( → P.107)
■
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 em it 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 engine is stopped.Keys
The keys
A
B
C
D

933-1. Key information
LS500_OM_OM50F54U_(U) 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.108)●
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. ( → P.403)
• 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.403■
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.436
■
When an electronic key is lost
→ P.435
■
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.

94 3-1. Key information
LS500_OM_OM50F54U_(U) The electronic keys are equipped with
the following wireless remote control: Locks the doors ( → P.96)
Unlocks the doors ( → P.96)
Opens the windows *1
and moon
roof *1, 2
or panoramic moon roof *1,
2
( → P.96)
Opens the trunk ( → P.103)
Sounds the alarm *1
: This setting must be customized at your
Lexus dealer. *2
: If equipped
■
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.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

953-1. Key information
LS500_OM_OM50F54U_(U) 3
Before driving 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 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.403)
■
When required to leave the vehicle’s
key with a parking attendant
Turn the trunk opener main switch off
( → P.106) and lock the glove box ( → P.335)
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.435
■
If a wrong key is used
The key cylinder rotates freely, isolated
from the internal mechanism.

973-2. Opening, closing and locking the doors and trunk
LS500_OM_OM50F54U_(U) 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.60)■
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 or panoramic 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 the surface 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.60) ■
Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
→ P.108 ■
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.436)
Replace the key battery with a new one if it
is depleted. ( → P.403)
■
If the battery 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.436)Multi-information
display/Beep Unlocking 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.

1053-2. Opening, closing and locking the doors and trunk
LS500_OM_OM50F54U_(U) 3
Before driving ■
Fall-down protection function (vehicles
with power trunk opener and closer)
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 (vehicles with
power trunk opener and closer)
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.436)
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.436)
Replace the key battery with a new one if it
is depleted. ( → P.403)
■
Situations in which the Hands Free
Power Trunk Lid may operate uninten-
tionally (if equipped)
In the following situations, the Hands Free
Power Trunk Lid may operate unintention-
ally.
To prevent unintentional operation, do not leave the electronic key in the trunk and
keep it out of the effective range (detection
area) or disable the Hands Free Power
Trunk Lid (kick sensor). ●
When a large amount of water is applied
to the rear bumper, such as when the
vehicle is being washed or in heavy rain ●
When dirt is wiped off the rear bumper ●
When a small animal or small object, such
as a ball, moves under the rear bumper ●
When an object is moved from under the
rear bumper ●
When snow, etc. is removed from under
the rear bumper ●
If someone is swinging their legs while sit-
ting on the rear bumper ●
If the legs or another part of someone’s
body contacts the rear bumper while
passing by the vehicle ●
When the vehicle is parked near an elec-
trical noise source which affects the sen-
sitivity of the Hands Free Power Trunk Lid,
such as a pay parking spot, gas station,
electrically heated road, or fluorescent
light ●
When the vehicle is near a TV tower,
electric power plant, radio station, large
display, airport or ot her facility that gen-
erates strong radio waves or electrical
noise ●
When the vehicle is parked in a place
where objects, such as grass, move near
the rear bumper ●
If luggage, etc. is set near the rear
bumper ●
If accessories or a vehicle cover is
installed/removed ne ar the rear bumper
●
When the vehicle is being towed
■
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 prop-
erly:
• If the rear bumper is strongly hit with a
foot or is touched for a while
Make sure not to touch the rear bumper