2018 Lexus LC500 Replace battery

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1-3. Hybrid system
■Electromagnetic waves
●High voltage parts and cables on hybrid
vehicles incorporate electromagnetic shielding, and therefore emit approxi-mately the same amount of electromag-
netic waves as conventional gasoline powered vehicles or home electronic appliances.
●Your vehicle may cause sound interfer-ence in some third party-produced radio
parts.
■Hybrid battery (traction battery)
The hybrid battery (traction battery) has a
limited service life. The lifespan of the hybrid battery (traction battery) can change in accordance with driving style and
driving conditions.
■Starting the hybrid system in an extremely cold environment
When the hybrid battery (traction battery) is extremely cold (below approximately -30°C [-22°F]) under the influence of the
outside temperature, it may not be possible to start the hybrid system. In this case, try to start the hybrid system again after the tem-
perature of the hybrid battery increases due to the outside temperature increase etc.
■Declaration of conformity
This model conforms to hydrogen emis- sions according to regulation ECE100
(Battery electric vehicle safety).
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC systems as well as a 12-volt system. DC and AC high voltage is very dangerous
and can cause severe burns and electric shock that may result in death or serious injury.
●Never touch, disasse mble, remove or
replace the high voltage parts, cables or their connectors.
●The hybrid system will become hot after starting as the system uses high
voltage. Be careful of both the high voltage and the high temperature, and always obey the warning labels
attached to the vehicle.
●Never try to open the service plug access hole located behind the rear seats. The service plug is used only
when the vehicle is serviced and is subject to high voltage.
■Road accident cautions
Observe the following precautions to
reduce the risk of death or serious injury:
●Stop the vehicle in a safe place to pre- vent subsequent accidents. While depressing the brake pedal, apply the
parking brake and shift the shift posi- tion to P to stop the hybrid system.
Then, slowly release the brake pedal.
●Do not touch the high voltage parts, cables and connectors.
●If electric wires are exposed inside or outside your vehicle, an electric shock
may occur. Never touch exposed elec- tric wires.

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1-3. Hybrid system
There are air intake vents under the
rear seats for the purpose of cooling
the hybrid battery (traction battery). If
the vents become blocked, the hybrid
battery input and output may be
restricted, leading to a reduction in
hybrid battery (traction battery) out-
put.
When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks the
high voltage current and stops the fuel
pump to minimize the risk of electrocu-
tion and fuel leakage. If the emergency
shut off system activates, your vehicle
will not restart. To restart the hybrid
system, contact any authorized Lexus
retailer or Lexus authorized repairer,
or any reliable repairer.
A message is automatically displayed
when a malfunction occurs in the
hybrid system or an improper opera-
tion is attempted.
If a warning message is shown on the
multi-information display, read the
NOTICE
■Hybrid battery (traction battery)
Do not carry large amounts of water
such as water cooler bottles in the vehi- cle. If water spills onto the hybrid battery (traction battery), the battery may be
damaged. Have the vehicle inspected by any authorized Lexu s retailer or Lexus authorized repairer, or any reliable
repairer.
Hybrid battery (traction bat-
tery) air intake vents
NOTICE
■Hybrid battery (traction battery) air intake vents
●Make sure not to block the air intake vents with anything, such as a seat cover, plastic cover, or luggage. If the
vents become blocked, the hybrid bat- tery (traction battery) input and output may be restricted, leading to a reduc-
tion in hybrid battery (traction battery) output and a malfunction.
●When dust etc. has accumulated in the air intake vents, periodically clean
them with a vacuum cleaner to prevent the vents from clogging.
●Filters are installed to the air intake vents. When the filters remain notice-
ably dirty even after cleaning the air intake vents, filter cleaning or replace-ment is recommended. When clean-
ing or replacing the filters, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer. Refer to P.309 for details on how to clean the filters.
●Do not get water or foreign materials
in the air intake vents as this may cause a short circuit and damage the hybrid battery (traction battery).
Emergency shut off system
Hybrid warning message

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1-4. Theft deterrent system
For safety and security
■Setting
Close the doors, trunk and hood, and
lock both side doors using the entry
function or wireless remote control.
The system will be set automatically
after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Canceling or stopping
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors or open the trunk
using the entry function or wireless
remote control.
 Start the engine .
(The alarm will be deactivated or
stopped after a few seconds.)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Triggering of the alarm
The alarm may be triggered in the following situations:(Stopping the alarm deactivates the alarm
system.)
●The doors are unlocked using the
mechanical key.
●A person inside the vehicle opens a door, the trunk or hood, or unlocks the vehicle using a door lock switch.
●The 12-volt battery is recharged or replaced when the vehicle is locked.
( P.398)
■Alarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to prevent improper entry into the vehicle:
●When a person remain ing in the vehicle unlocks the door and the alarm is acti-vated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery

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3-1. Key information
3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys
• Operating the smart entry & start sys-
tem ( P.122)
• Operating the wireless remote control
function
Mechanical keys
Key number plate
■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.
●If the battery becomes low, an alarm will sound in the cabin when the engine
is stopped.
●As the electronic key 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.349) • The smart entry & start system or the wireless remote control does not oper-
ate. • 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 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
■Replacing the battery
 P.349
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask any
authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer 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 displayed but you have not
had a new electronic key registered, ask any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer
to check if an unknown electronic key (other than those in your possession) has been registered.
Keys
Key types
A
B
C

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3-2. Opening, closing and locking the doors and trunk
Before driving
the doors. (P.389) Replace the key battery with a new one if it is depleted. ( P.349)
■If the 12-volt battery is discharged
The doors cannot be locked and unlocked using the smart entry & start system or
wireless remote control. Lock or unlock the doors using the mechanical key. ( P.389)
■Customization
Settings (e.g. unlocking function using a key) can be changed. (Customizable features: P.423)
■Door lock switches
1 Locks both side doors
The indicator comes on.
2Unlocks both side doors
The indicator turns off.
■Inside door handles
Pull the inside door handle to unlock
the door.
The door lock indicator turns off.
The doors can be opened by pulling the
inside door handle even if the door lock
indicator illuminates.
WARNING
■To prevent an accident
Observe the following precautions while driving the vehicle.Failure to do so may result in a door
opening and an occupant being thrown out of the vehicle, re sulting in death or serious injury.
●Ensure that both side doors are prop-
erly closed.
●Do not pull the inside door handle while driving. The doors may opened even if they are locked.
■Side window open/close function
linked to door operation
Do not hold the upper edge of the side
window when you close the door. Other- wise, your fingers or hand may be caught in the window.
■When using the wireless remote con-
trol and operating the power windows
Operate the power window after check-
ing to make sure that there is no possibil- ity of any passenger having any of their body parts caught in the window. Also,
do not allow children to operate the wire- less remote control. It is possible for chil-dren and other passengers to get caught
in the power window.
■When entering and exiting the vehi- cle
Do not step on the scuff plate. Slipping on the surface may result in injury.
Unlocking and locking the doors
from the inside
A
A
A
A

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3-2. Opening, closing and locking the doors and trunk
Before driving
■Wireless remote control
Press and hold the switch.
■Trunk light
●The trunk light turns on when the trunk is opened.
●If the trunk light is le ft on when the engine switch is turned off, the
light will go off automatically after 20 minutes.
■Function to prevent the trunk being locked with the electronic key inside
●When both side doors are locked, closing the trunk lid with the electronic key left
inside the trunk will sound an alarm. In this case, the trunk lid can be opened by pressing the trunk release button on
the trunk lid.
●If the spare electronic key is put in the
trunk with both side 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 both side 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 trunk to be locked when the trunk lid is closed. Make sure to
check where the key is before closing the trunk.
●The key confinement prevention function cannot be activated if either door is unlocked. In this case, open the trunk
using the trunk opener switch.
●If the trunk lid is closed by a hand having
the electronic key when the both side doors are locked, a warning buzzer may sound. In this case, the trunk is not locked.
Do not close the trunk lid by a hand hav- ing the electronic key.
■If the smart entry & start system or the wireless remote control does not oper-
ate properly
Use the trunk opener switch to unlock the
trunk. ( P.389) Replace the key battery with a new one if it is depleted. ( P.349)
■If a symbol indicating the trunk opens is
shown on the multi-information display
 P.118
■If the 12-volt battery is discharged
The trunk cannot be locked and unlocked
using the smart entry & start system or wireless remote control. Lock or unlock the trunk using the mechanical key. ( P.392)
■Customization
The trunk unlocking operation can be changed. (Customizable features:
 P.423)
Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
Closing the trunk

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6-1. Maintenance and care
2Remove the filter.
3 Remove dust using a vacuum
cleaner etc. to clean the filter.
Also, remove dust on the grille as well as on the filter using a vacuum cleaner.
4 Install the filter in its original posi-
tion, and then install the grille.
5 Start the hybrid system and check
that the warning message on the
multi-information display disap-
pears.
It may take several minutes before the warning message disappears.
■Cleaning the air intake vents and filters
●Dust on the air intake vents or filters may interferes cooling of the hybrid battery (traction battery) and results in poor fuel
consumption. Clean the air intake vents and filters periodically.
●If continuing to drive the vehicle with “Maintenance required for Traction bat-tery cooling parts See owner’s manual”
shown on the multi-information display, the hybrid battery (traction battery) input and output may be restricted, leading to a
reduction in hybrid battery (traction bat- tery) output and a malfunction. It may cause poor fuel consumption or a mal-
function. If the warning message is shown, contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer or clean the air intake vents and filters immediately.
●Improper handling may result in damage to the grille or filters. If you have any con-cerns about cleaning the filters, contact
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
●If the warning message on the multi-infor-mation display does not disappear after
cleaning the filters, have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or
any reliable repairer.
●Timing of cleaning filters differs depend-
ing on the use environment of the vehicle.
NOTICE
■When cleaning the air intake vents
and filters
Observe the following precautions. Fail-
ure to do so may cause damage to the vehicle.
●When removing the air intake vent grille, make sure to turn the power
switch off to stop the hybrid system.
●Do not use water or other liquid to clean the air intake vents or filters.
●Do not allow water or foreign matter to enter the air intake vent when the grille
is removed.
●Carefully handle th e removed filters not to damage.If the filter is damaged, have it replaced
with a new filter by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

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6-3. Do-it-yourself maintenance
Maintenance and care
Check that the level is upper than the
center between the bottom of the bat-
tery lid and “LOWER LEVEL” line.
Bottom of the battery lid
“LOWER LEVEL” line
Center of and
If the fluid level is below , replace the
12-volt battery.
Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as excessive
wear on one side of the tread.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire.
Keep away from children
12-volt battery acid
Note operating instructions
Explosive gas
Checking the 12-volt battery
fluid
A
B
CAB
C
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C