Page 549 of 708
5496-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle in spected by your Lexus dealer.
Check the battery as follows.
■Removing the battery cover
P. 543
■Caution symbols
The meanings of each caution symbol on the top of the battery are as
follows:
Radiator and condenser
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious inju-
ries, such as burns.
Battery
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating instruc-
tions
Keep away from childrenExplosive gas
Page 550 of 708
5506-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
■Battery exterior
Make sure that the battery terminals are not corroded and that there
are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■Checking battery fluid
Check that the level is between the “UPPER LEVEL” and “LOWER
LEVEL” lines.
“UPPER LEVEL” line
“LOWER LEVEL” line
If the fluid level is at or below the
“LOWER LEVEL” line, add distilled
water.
■Adding distilled water
Remove the vent plug.
Add distilled water.
If the “UPPER LEVEL” line cannot
be seen, check the fluid level by
looking directly at the cell.
Put the vent plug back on and close it securely.
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2
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Low O.K.2
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Page 551 of 708

5516-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine. (If the engine does not start first time, repeat the procedure.)
If the engine will not start even after multiple attempts at the above method, contact
your Lexus dealer.
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CAUTION
■Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce hydro-
gen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near the battery:
●Do not cause sparks by touching the battery terminals with tools.
●Do not smoke or light a match near the battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses when working near the battery.
●Keep children away from the battery.
■Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a garage
or closed room where there is insufficient ventilation.
Page 552 of 708

5526-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
CAUTION
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immediate medi-
cal attention. If possible, continue to apply water with a sponge or cloth while
traveling to the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical atten-
tion immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the clothing and
follow the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention imme-
diately.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is operating. Also, be sure all acces-
sories are turned off.
■When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corrosion.
■When replacing the battery
Replace the battery with a battery of the same size.
Installing a battery of a different size will prevent the cover from being properly
installed over the battery. This may cause water to enter the engine compartment
when it rains or the vehicle is washed, resulting in a malfunction.
For more information about replacing the battery, contact your Lexus dealer.
Page 553 of 708
5536-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
If any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.
Washer fluid
CAUTION
■When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid contains
alcohol and may catch fire if spilled on the engine etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.
Page 554 of 708
5546-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
Check the air cleaner filter as follows:
Remove the V-bank cover ( P. 541)
Release the clips.
Lift the cover and take out the air
cleaner filter.
Inspect the outer surface of the filter,
and replace the filter if it is extremely
dirty. If the filter is only moderately
dusty, use compressed air to blow dust
out of the filter.
Clean or replace the both left and
right side filters at the same time.
Fully engage the claws and then
secure the upper cover of the air
cleaner case using the latches.
Air cleaner filter
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3
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Page 555 of 708
5556-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
CAUTION
■To prevent inhaling dust
Wear a respirator when using compressed air to clean the air cleaner filter.
NOTICE
■To prevent damaging the engine
Do not drive with the air cleaner filter removed. Doing so causes excessive engine
wear.
Page 556 of 708
5566-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
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.
Check the spare tire condition and pressure if not rotated.
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 indicators are showing on a tire.
Tires
Replace or rotate tires in accord ance with maintenance schedules and
treadwear.
Checking tires
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