2021 LEXUS ES350 engine

3056-1. Maintenance and care
6
Maintenance and care
■Front side windows water-repellent
coating
●The following precautions can extend the
effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate
on the windows for a long period.
Clean the windows with a soft, damp
cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance
has become insufficie nt, the coating can
be repaired. Contact your Lexus dealer.
■Plated portions
If dirt cannot be removed, clean the parts as
follows:
●Use a soft cloth dampened with an
approximately 5% solution of neutral
detergent and water to clean the dirt off.
●Wipe the surface with a dry, soft cloth to
remove any remaining moisture.
●To remove oily deposits, use alcohol wet
wipes or a similar product.
WARNING
■When washing the vehicle
Do not apply water to the inside of the
engine compartment. Doing so may
cause the electrical components etc. to
catch fire.
■When cleaning the windshield (vehi-
cles with rain-sensing windshield wip-
ers)
Set the wiper switch to off.
If the wiper switch is in “AUTO”, the wip-
ers may operate unexpectedly in the fol-
lowing situations, and may result in hands
being caught or other serious injuries
and cause damage to the wiper blades.
Off
AUTO
●When the upper part of the windshield
where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close
to the raindrop sensor
●If something bumps against the wind-
shield
●If you directly touch the raindrop sen-
sor body or if something bumps into
the raindrop sensor
■Precautions regarding the exhaust
pipes and rear bumper diffusers
As exhaust gases cause the exhaust
pipes and rear bumper diffusers to
become quite hot, do not touch the
exhaust pipes and rear bumper diffusers
while the engine is running or immedi-
ately after the engine is turned off.
When washing the vehicle, be careful not
to touch the exhaust pipes and rear
bumper diffusers until they have cooled
sufficiently, as touching hot exhaust pipes
and rear bumper diffusers can cause
burns.
A
B

3096-2. Maintenance
6
Maintenance and care
6-2.Maintenance
■Repair and replacement
It is recommended that genuine Lexus parts
be used for repairs to ensure performance
of each system. If non-Lexus parts are used
in replacement or if a repair shop other than
a Lexus dealer perfor ms repairs, confirm
the warranty coverage.
■Allow inspection and repairs to be per-
formed by a Lexus dealer
●Lexus technicians are well-trained spe-
cialists and are kept up to date with the
latest service information. They are well
informed about the operations of all sys-
tems on your vehicle.
●Keep a copy of the repa ir order. It proves
that the maintenance that has been per-
formed is under warranty coverage. If
any problem should arise while your vehi-
cle is under warranty, your Lexus dealer
will promptly take care of it.
General maintenance should be per-
formed on a daily basis. This can be
done by yourself or by a Lexus dealer.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.
For details about ma intenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.
■Resetting the message indicating main-
tenance is required
After the required maintenance is per-
formed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedure
described below:
1 Press or of the meter control
switches and select .
2 Press or of the meter control
switches and select “Vehicle Settings”.
Then press “OK”.
Maintenance requirements
To ensure safe and economical
driving, day-to-day care and regu-
lar maintenance are essential. It is
the owner’s responsibility to per-
form regular checks. Lexus recom-
mends the following maintenance:
WARNING
■If your vehicle is not properly main-
tained
Improper maintenanc e could result in
serious damage to the vehicle and possi-
ble death or serious injury.
■Handling of the battery
●Engine exhaust, some of its constitu-
ents, and a wide variety of automobile
components contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
other reproductive harm. Work in a
well ventilated area.
●Oils, fuels and fluids contained in vehi-
cles as well as waste produced by
component wear contain or emit
chemicals known to the State of Cali-
fornia to cause cancer and birth
defects or other re productive harm.
Avoid exposure and wash any affected
area immediately.
●Battery posts, terminals and related
accessories contai n lead and lead
compounds which are known to cause
brain damage. Wash your hands after
handling. ( P.323)
General maintenance
Scheduled maintenance

3106-2. Maintenance
3Press or of the meter control
switches and select “Scheduled Mainte-
nance”. Then press “OK”.
4 Select “Yes” and press “OK”.
A message will be disp layed when the reset
procedure has been completed.
You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage.
The use of Lexus repair manuals is recom-
mended.
For details about warra nty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.
Do-it-yourself maintenance
General maintenance
Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice should be brought to
the attention of your Lexus dealer
or qualified service shop for advice.
WARNING
■If the engine is running
Turn the engine off and ensure that there
is adequate ventilati on before perform-
ing maintenance checks.
Engine compartment
ItemsCheck points
Battery
Check the battery fluid
level and connections.
(  P.323)
Brake fluid
Is the brake fluid at the
correct level?
( P.323)
Engine coolant
Is the engine coolant at
the correct level?
( P.322)
Engine oil
Is the engine oil at the
correct level?
( P.319)
Exhaust system
There should not be
any fumes or strange
sounds.

3126-2. Maintenance
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate
smoothly?
• Does the steering wheel have the cor-
rect amount of free
play?
•There should not be any strange sounds
coming from the
steering wheel.
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk operate smoothly?
Engine hood
•Does the engine hood lock system
work properly?
Fluid leaks
•There should not be any signs of fluid
leakage after the
vehicle has been
parked.
ItemsCheck points
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or
excessively worn.
• Have the tires been rotated according to
the maintenance
schedule?
• The wheel nuts should not be loose.
Windshield wip-
ers
• The wiper blades should not show any
signs of cracking,
splitting, wear, con-
tamination or defor-
mation.
• The wiper blades should clear the
windshield without
streaking or skip-
ping.
ItemsCheck points

3146-3. 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
Battery condi-
tion (P.323)
•Warm water
•Baking soda
•Grease
• Conventional wrench
(for terminal clamp
bolts)
Brake fluid
level
( P.323)
• FMVSS No.116 DOT 3
or SAE J1703 brake
fluid
FMVSS No.116 DOT 4
or SAE J1704 brake
fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant
level
( P.322)
•“Toyota Super Long
Life Coolant” or a simi-
lar high quality eth-
ylene glycol-based
non-silicate, non-amine,
non-nitrite and non-
borate coolant with
long-life hybrid organic
acid technology
For the U.S.A.:
“Toyota Super Long
Life Coolant” is pre-
mixed with 50% cool-
ant and 50% deionized
water.
For Canada:
“Toyota Super Long
Life Coolant” is pre-
mixed with 55% cool-
ant and 45% deionized
water.
• Funnel (used only for adding coolant)
Engine oil level
( P.319)
•“Toyota Genuine
Motor Oil” or equiva-
lent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P.342)• Fuse with same amper-
age rating as original
Headlight aim• Phillips-head screw-driver
Light bulbs
( P.346)
•Bulb with same number
and wattage rating as
original
•Flathead sc rewdriver
Radiator and
condenser
( P.322)

ItemsParts and tools

3156-3. Do-it-yourself maintenance
6
Maintenance and care
Tire inflation
pressure
( P.336)• Tire pressure gauge
• Compressed air source
Washer fluid
( P.325)
• Water or washer fluid
containing antifreeze
(for winter use)
• Funnel (used only for adding water or washer
fluid)
WARNING
The engine compartment contains many
mechanisms and fluids that may move
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following
precautions.
■When working on the engine com-
partment
●Keep hands, clothi ng and tools away
from the moving fan and engine drive
belt.
●Be careful not to touch the engine,
radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil
and other fluids may also be hot.
●Do not leave anything that may burn
easily, such as paper and rags, in the
engine compartment.
●Do not smoke, cause sparks or expose
an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
■When working near the electric cool-
ing fan or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION
ON mode, the electric cooling fan may
automatically start to run if the air condi-
tioning is on and/or the coolant tempera-
ture is high. ( P.322)
ItemsParts and tools■Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine
wear due to dirt in the air.

3186-3. Do-it-yourself maintenance
2GR-FKS engineFuse box ( P.342)
Engine oil filler cap ( P.320)
Engine oil level dipstick ( P.319)
Battery ( P.323)
Brake fluid reservoir ( P.323)
Radiator ( P.322)
Electric cooling fan
Condenser ( P.322)
Engine coolant reservoir ( P.322)
Washer fluid tank ( P.325)
Engine compartment
Components
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3196-3. Do-it-yourself maintenance
6
Maintenance and care
A25A-FKS engineFuse boxes ( P.342)
Engine oil filler cap ( P.320)
Engine oil level dipstick ( P.319)
Battery ( P.323)
Brake fluid reservoir ( P.323)
Radiator ( P.322)
Electric cooling fan
Condenser ( P.322)
Engine coolant reservoir ( P.322)
Washer fluid tank ( P.325)
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
■Checking the engine oil
1 Park the vehicle on level ground.
After warming up the engine and turning it
off, wait more than 5 minutes for the oil to
drain back into the bottom of the engine.
2Holding a rag under the end, pull
the dipstick out.
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C
D
E
F
G
H
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Checking and adding the engine
oil