2018 Lexus LC500 battery

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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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6-2. Maintenance
6-2.Maintenance
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends that maintenance service operations as well as
other inspections and repairs be carried out by authorized Lexus retailer or Lexus authorized repairer, or any reliable repair-
ers. For repairs and services covered by your warranty, please visit an authorized Lexus retailer or repairer, who will use gen-
uine Lexus parts in repairing any difficulties you may encounter. There can also be advantages in utilizing authorized Lexus
retailers or repairers for non-warranty repairs and services, as members of the Lexus network will be able to expertly assist
you with any difficulties you may encounter.
Your Lexus retailer or Lexus authorized
repairer, or any reliable repairer will per- form all of the scheduled maintenance on your vehicle reliably and economically due
to their experience with Lexus vehicles.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.
For details about maintenance items and
schedules, refer to the “Lexus Service
Booklet” or “Lexus Warranty Booklet”.
What about do-it-yourself mainte-
nance?
Many of the maintenance items are easy to
do yourself if you have a little mechanical
ability and a few basic automotive tools.
Note, however, that some maintenance
tasks require special tools and skills. These
are best performed by qualified techni-
cians. Even if you’re an experienced do-it-
yourself mechanic, we recommend that
repairs and maintenance be conducted by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer. Any authorized Lexus retailer or
repairer will keep a record of maintenance,
which could be useful should you ever
require Warranty Service. Should you
choose to select a qualified and equipped
professional other than an authorized
Lexus repairer to service or maintain your
vehicle, we recommend that you request
that a record of maintenance be kept.
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indicate
service is needed. Some important clues are:
●Engine missing, stumbling or pinging
Maintenance requirements
To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. Lexus
recommends the following mainte-
nance:
WARNING
■If your vehicle is not properly main-
tained
Improper maintenance could result in
serious damage to the vehicle and possi- ble death or serious injury.
■Handling of the 12-volt battery
12-volt battery posts, terminals and related accessories contain lead and lead compounds which are known to
cause brain damage. Wash your hands after handling. ( P.325)
Scheduled maintenance
Do-it-yourself maintenance

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6-3. Do-it-yourself maintenance
6-3.Do-it-yourself maintenance
Do-it-yourself service pre-
cautions
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.325)
•Grease
• Conventional wrench
(for terminal clamp
bolts)
Engine coolant
level (LC500)
( P.322)
• “Toyota Super Long Life
Coolant” or a similar
high quality ethylene
glycol-based non-sili-
cate, non-amine, non-
nitrite and non-borate
coolant with long-life
hybrid organic acid
technology
“Toyota Super Long Life
Coolant” is pre-mixed
with 50% coolant and
50% deionized water.
• Funnel (used only for
adding coolant)
Engine/power
control unit
coolant level
(LC500h)
( P.322)
• “Toyota Super Long Life
Coolant” or a similar
high quality ethylene
glycol-based non-sili-
cate, non-amine, non-
nitrite and non-borate
coolant with long-life
hybrid organic acid
technology
“Toyota Super Long Life
Coolant” is pre-mixed
with 50% coolant and
50% deionized water.
•Funnel (used only for
adding coolant)
Engine oil level
( P.319)
•“Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
•Funnel (used only for
adding engine oil)
Fuses
( P.350)
•Fuse with same amper-
age rating as original
Light bulbs
( P.355)
• Bulb with same number
and wattage rating as
original
Radiator and
condenser
( P.323)

Tire inflation
pressure
( P.345)
• Tire pressure gauge
• Compressed air source
Washer fluid
( P.324)
• Water or washer fluid
containing antifreeze
(for winter use)
•Funnel (used only for
adding water or washer
fluid)
ItemsParts and tools

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6-3. Do-it-yourself maintenance
Maintenance and care
LC500h
Engine oil level dipstick ( P.319)
Power control unit coolant reservoir ( P.323)
Engine oil filler cap ( P.320)
Fuse boxes ( P.350)
Washer fluid tank ( P.324)
Engine coolant reservoir ( P.322)
Electric cooling fan
Condenser ( P.323)
Radiator ( P.323)
For right-hand drive vehicles:
One of the fuse boxes is located on the opposite side of the engine compartment.
■12-volt battery
 P.325
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
A
B
C
D
E
F
G
H
I
Checking and adding the engine
oil

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6-3. Do-it-yourself maintenance
Maintenance and care
The 12-volt battery is located in the
trunk.
■Before recharging
When recharging, the 12-volt battery pro- duces hydrogen gas which is flammable and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon- nect the ground cable.
●Make sure the power switch on the char-ger is off when connecting and discon-necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12- volt battery
●Unlocking the doors using the smart entry & start system may not be possible immediately after reconnecting the 12-
volt battery. If this happens, use the wire- less remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCES-
SORY mode. The engine may not start with the engine switch turned off. However, the
engine will operate nor- mally from the second attempt.
●The engine switch mode
is recorded by the vehicle. If the 12-volt battery is reconnected, the vehicle will return the engine switch
mode to the status it was in before the 12- volt battery was disc onnected. Make sure to turn off the engine switch switch> before disconnect the 12-volt bat- tery. Take extra care when connecting the 12-volt battery if the engine switch
mode prior to discharge is unknown.
If the engine will not start even after multiple attempts at all methods above, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
12-volt battery
Location
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous
and corrosive sulfuric acid and may pro- duce hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following pre- cautions while working on or near the 12-volt battery:
●Do not cause sparks by touching the
12-volt battery terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when
working near the 12-volt battery.
●Keep children away from the 12-volt battery.
■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt bat-
tery in a garage or closed room where there is insufficient ventilation.

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6-3. Do-it-yourself maintenance
Pull the strap upwards to lift up the lug-
gage mat.
Make sure that the 12-volt battery ter-
minals are not corroded and that there
are no loose connections, cracks, or
loose clamps.
Terminals
Hold-down clamp
The meanings of each caution symbol
on the top of the 12-volt battery are as
follows:
WARNING
■How to recharge the 12-volt battery
Recharge at a current of 5 A or less and
make sure that the recharging period does not exceed a total of 12 hours.
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyesFlush your eyes with clean water for at
least 15 minutes and get immediate medical attention. If possible, continue to apply water with a sponge or cloth
while traveling to the nearest medical facility.
●If electrolyte gets on your skinWash the affected area thoroughly. If
you feel pain or burning, get medical attention immediately.
●If electrolyte gets on your clothesIt can soak through clothing on to your
skin. Immediately take off the clothing and follow the procedure above if nec-essary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention immediately.
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while the engine is running . Also, be sure all accessories
are turned off.
Removing the 12-volt battery
cover
Exterior
Caution symbols
No smoking, no naked
flames, no sparks
Shield eyes
A
B

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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

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6-3. Do-it-yourself maintenance
Maintenance and care
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wire- less remote control will not function properly.
●The operational range will be reduced.
Prepare the following before replacing
the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer, local electrical appliance shops or camera
stores.
●Replace only with the same or equivalent
type recommended by the manufacturer.
●Dispose of used batteries according to
the local laws.
1 Take out the mechanical key.
2 Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
3 Remove the depleted battery.
Insert a new battery with the “+” terminal
facing up.
Electronic key battery
Replace the battery with a new one
if it is depleted.
Items to prepare
Replacing the battery