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LEXUS LS 500 (2019 year). Instruction - part 23

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6-2. Maintenance

LS500_OM_(U)_1809

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 performs 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 operation of all sys-

tems on your vehicle.

●

Keep a copy of the repair order. It proves

that the maintenance that has been per-

formed is under warranty coverage. If any

problem should arise while your vehicle 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 maintenance 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:

Press

of the meter control

switch to select

Press

to select “Vehicle Set-

tings” and then press

Maintenance requirements

To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. It is the
owner’s responsibility to perform
regular checks. Lexus recommends
the maintenance below.

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 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 reproductive harm.

Avoid exposure and wash any affected

area immediately.

●

Battery posts, terminals and related

accessories contain lead and lead

compounds which are known to cause

brain damage. Wash your hands after

handling. (

P.380)

General maintenance

Scheduled maintenance

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6-2. Maintenance

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Press

to select “Scheduled

Maintenance” and then press

Press

to select “Yes” and

then press

A message will be displayed on the

multi-information display 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 warranty 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 ventilation before perform-

ing maintenance checks.

Engine compartment

Items

Check points

Brake fluid

Is the brake fluid at the
correct level?
(

P.379)

Engine/inter-
cooler coolant

Is the engine/inter-
cooler coolant at the
correct level?
(

P.377)

Engine oil

Is the engine oil at the
correct level?
(

P.375)

Exhaust system

There should not be
any fumes or strange
sounds.

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6-2. Maintenance

LS500_OM_(U)_1809

Radiator, con-
denser, inter-
cooler radiator
and intercooler
sub radiator

The radiator, con-
denser, intercooler
radiator and inter-
cooler sub radiator
should be free from
foreign objects.
(

P.378)

Washer fluid

Is there sufficient
washer fluid?
(

P.379)

Trunk

Items

Check points

Battery

Check the connec-
tions. (

P.380)

Vehicle interior

Items

Check points

Accelerator
pedal

• The accelerator

pedal should move
smoothly (without
uneven pedal effort
or catching).

Automatic trans-
mission “Park”
mechanism

• When parked on a

slope and the shift
position is in P, is the
vehicle securely
stopped?

Items

Check points

Brake pedal

• Does the brake

pedal move
smoothly?

• Does the brake

pedal have appro-
priate clearance
from the floor?

• Does the brake

pedal have the cor-
rect amount of free
play?

Brakes

• The vehicle should

not pull to one side
when the brakes are
applied.

• The brakes should

work effectively.

• The brake pedal

should not feel
spongy.

• The brake pedal

should not get too
close to the floor
when the brakes are
applied.

Head restraints

• Do the head

restraints move
smoothly and lock
securely?

Indicators/buzz-
ers

• Do the indicators

and buzzers function
properly?

Lights

• Do all the lights

come on?

Items

Check points

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Parking brake

• Does the parking

brake operate nor-
mally?

• When parked on a

slope and the park-
ing brake is on, is the
vehicle securely
stopped?

Seat belts

• Do the seat belts

operate smoothly?

• The seat belts should

not be damaged.

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

Items

Check 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.

Items

Check 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.

Items

Check points

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6-2. Maintenance

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The OBD system determines that a
problem exists somewhere in the emis-
sion control system. Your vehicle may
not pass the I/M test and may need to
be repaired. Contact your Lexus
dealer to service the vehicle.

 When the battery is disconnected

or discharged

Readiness codes that are set during ordi-
nary driving are erased.
Also, depending on your driving habits, the
readiness codes may not be completely
set.

 When the fuel tank cap is loose

The malfunction indicator lamp comes on
indicating a temporary malfunction and
your vehicle may not pass the I/M test.

The error code in the OBD system will
not be cleared unless the vehicle is
driven 40 or more times.

Contact your Lexus dealer to prepare
the vehicle for re-testing.

Emission inspection and
maintenance (I/M) pro-
grams

Some states have vehicle emission
inspection programs which include
OBD (On Board Diagnostics)
checks. The OBD system monitors
the operation of the emission con-
trol system.

If the malfunction indicator lamp
comes on

Your vehicle may not pass the
I/M test in the following situa-
tions:

When the malfunction indicator
lamp still remains on after sev-
eral driving trips

If your vehicle does not pass the
I/M test

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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

Items

Parts and tools

Battery condition
(

P.380)

• Grease
• Conventional

wrench (for terminal
clamp bolts)

Brake fluid level
(

P.379)

• 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/inter-
cooler coolant
level (

P.377)

• “Toyota Super Long

Life Coolant” or a
similar high quality
ethylene gly-
col-based non-sili-
cate, non-amine,
non-nitrite and
non-borate coolant
with long-life hybrid
organic acid tech-
nology
For the U.S.A.:
“Toyota Super Long
Life Coolant” is
pre-mixed with 50%
coolant and 50%
deionized water.
For Canada:
“Toyota Super Long
Life Coolant” is
pre-mixed with 55%
coolant and 45%
deionized water.

• Funnel (used only for

adding coolant)

Engine oil level
(

P.375)

• “Toyota Genuine

Motor Oil” or equiv-
alent

• Rag or paper towel
• Funnel (used only for

adding engine oil)

Fuses (

P.401)

• Fuse with same

amperage rating as
original

Radiator, con-
denser, inter-
cooler radiator
and intercooler
sub radiator
(

P.378)



Items

Parts and tools

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6-3. Do-it-yourself maintenance

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Tire inflation pres-
sure (

P.395)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(

P.379)

• Water or washer

fluid containing anti-
freeze (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, clothing 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. Fuel 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.378)

Items

Parts 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.

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Pull the hood lock release lever.

The hood will pop up slightly.

Pull up the auxiliary catch lever and
lift the hood.

■

Front



2WD models

Hood

Opening the hood

WARNING

■

Pre-driving check

Check that the hood is fully closed and

locked.

If the hood is not locked properly, it may

open while the vehicle is in motion and

cause an accident, which may result in

death or serious injury.

Positioning a floor jack

When using a floor jack, follow the
instructions in the manual provided
with the jack and perform the oper-
ation safely.
When raising your vehicle with a
floor jack, position the jack cor-
rectly. Improper placement may
damage your vehicle or cause
injury.

Location of the jack point

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6-3. Do-it-yourself maintenance

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

AWD models

■

Rear

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Fuse boxes (

P.401)

Engine oil filler cap (

P.376)

Engine coolant reservoir (

P.377)

Intercooler coolant reservoir (

P.377)

Engine oil level dipstick (

P.375)

Brake fluid reservoir (

P.379)

Washer fluid tank (

P.379)

Radiator (

P.378)

Intercooler radiator (

P.378)

Electric cooling fan
Condenser (

P.378)

Intercooler sub radiator (

P.378)

For AWD models:
The engine oil level dipstick is located on the opposite side of the engine.

Engine compartment

Components

A
B
C
D

E
F

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6-3. Do-it-yourself maintenance

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■

Battery

P.380

■

Removing the engine compartment cover



Outside



Front

■

Installing the clips

Push up center portion

Insert

Press

Engine compartment cover

NOTICE

■

Checking the engine compartment

cover after installation

Make sure that the cover is securely

installed in its original position.

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Removing the service cover

Pull up the passenger side end of
the rubber strip to disengage it
from the vehicle body.

Remove the service cover.

Push the tabs and lift away the service

cover.

■

Installing the service cover

Install the service cover.

Make sure to engage the claws on the

windshield side of the service cover when

installing the service cover.

Engage the rubber strip to the vehi-
cle body.

With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.

■

Checking the engine oil

Park the vehicle on level ground.
After warming up the engine and
turning it off, wait more than 5 min-
utes for the oil to drain back into the
bottom of the engine.

Holding a rag under the end, pull
the dipstick out.

 2WD models

 AWD models

Service cover

NOTICE

■

Checking the service cover after

installation

Make sure that the cover is securely

installed in its original position.

Checking and adding the engine
oil

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Wipe the dipstick clean.

Reinsert the dipstick fully.

Holding a rag under the end, pull
the dipstick out and check the oil
level.

Low
Normal
Excessive

The shape of the dipstick may differ

depending on the type of vehicle or

engine.

Wipe the dipstick and reinsert it
fully.

■

Checking the oil type and prepar-
ing the item needed

Make sure to check the oil type and
prepare the items needed before add-
ing oil.
 Engine oil selection

P.448

 Oil quantity (Low

 Full)

1.6 qt. (1.5 L, 1.3 Imp. qt.)

 Item

Clean funnel

■

Adding engine oil

If the oil level is below or near the low
level mark, add engine oil of the same
type as that already in the engine.
 2WD models

 AWD models

Remove the oil filler cap by turning
it counterclockwise.

Add engine oil slowly, checking the
dipstick.

Install the oil filler cap by turning it
clockwise.

■

Engine oil consumption

A certain amount of engine oil will be con-

sumed while driving. In the following situa-

tions, oil consumption may increase, and

A
B
C

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engine oil may need to be refilled in

between oil maintenance intervals.

●

When the engine is new, for example

directly after purchasing the vehicle or

after replacing the engine

●

If low quality oil or oil of an inappropriate

viscosity is used

●

When driving at high engine speeds or

with a heavy load, or when driving while

accelerating or decelerating frequently

●

When leaving the engine idling for a long

time, or when driving frequently through

heavy traffic

■

After changing the engine oil

The engine oil maintenance data should be

reset. Perform the following procedures:

Press

of the meter control

switch to select

Press

to select “Vehicle Set-

tings” and then press

Press

to select “Oil Mainte-

nance” and then press

Press

to select “Yes” and

then press

A message will be displayed on the

multi-information display when the reset

procedure has been completed.

The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold.

■

Engine coolant reservoir

Reservoir cap

WARNING

■

Used engine oil

●

Used engine oil contains potentially

harmful contaminants which may

cause skin disorders such as inflamma-

tion and skin cancer, so care should be

taken to avoid prolonged and

repeated contact. To remove used

engine oil from your skin, wash thor-

oughly with soap and water.

●

Dispose of used oil and filters only in a

safe and acceptable manner. Do not

dispose of used oil and filters in house-

hold trash, in sewers or onto the

ground.

Call your Lexus dealer, service station

or auto parts store for information

concerning recycling or disposal.

●

Do not leave used engine oil within the

reach of children.

NOTICE

■

To prevent serious engine damage

Check the oil level on a regular basis.

■

When replacing the engine oil

●

Be careful not to spill engine oil on the

vehicle components.

●

Avoid overfilling, or the engine could

be damaged.

●

Check the oil level on the dipstick

every time you refill the vehicle.

●

Be sure the engine oil filler cap is prop-

erly tightened.

Checking the coolant

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6-3. Do-it-yourself maintenance

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“F” line
“L” line

If the level is on or below the “L” line, add
coolant up to the “F” line. (

P.440)

■

Intercooler coolant reservoir

The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold.

Reservoir cap
“F” line
“L” line

If the level is on or below the “L” line, add
coolant up to the “F” line. (

P.440)

■

Coolant selection

Only use “Toyota Super Long Life Coolant”

or a similar high quality ethylene glycol

based non-silicate, non-amine, non-nitrite,

and non-borate coolant with long-life

hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized

water. (Minimum temperature: -31°F

[-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mix-

ture of 55% coolant and 45% deionized

water. (Minimum temperature: -44°F

[-42°C])
For more details about coolant, contact

your Lexus dealer.

■

If the coolant level drops within a short

time of replenishing

Visually check the radiator, hoses, engine

coolant reservoir caps, drain cock and

water pump.

If you cannot find a leak, have your Lexus

dealer test the cap and check for leaks in

the cooling system.

Check the radiator, condenser, inter-
cooler radiator and intercooler sub
radiator 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
inspected by your Lexus dealer.

B
C

A
B
C

WARNING

■

When the engine is hot

Do not remove the engine coolant reser-

voir cap, the intercooler coolant reser-

voir cap and the coolant inlet cap.

(

P.442)

The cooling system may be under pres-

sure and may spray hot coolant if the cap

is removed, causing serious injuries, such

as burns.

NOTICE

■

When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct mixture

of water and antifreeze must be used to

provide proper lubrication, corrosion

protection and cooling. Be sure to read

the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the radiator, con-
denser, intercooler radiator (if
equipped) and intercooler sub
radiator (if equipped)

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Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.

■

Adding fluid

Make sure to check the fluid type and
prepare the necessary item.
 Fluid type

FMVSS No.116 DOT 3 or SAE J1703
brake fluid
FMVSS No.116 DOT 4 or SAE J1704
brake fluid

 Item

Clean funnel

■

Brake fluid can absorb moisture from

the air

Excess moisture in the brake fluid can cause

a dangerous loss of braking efficiency. Use

only newly opened brake fluid.

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.

WARNING

■

When the engine is hot

Do not touch the radiator, condenser,

intercooler radiator or intercooler sub

radiator as they may be hot and cause

serious injuries, such as burns.

Checking and adding the brake
fluid

WARNING

■

When filling the reservoir

Take care as brake fluid can harm your

hands and eyes and damage painted sur-

faces.

If fluid gets on your hands or in your eyes,

flush the affected area with clean water

immediately.
If you still experience discomfort, see a

doctor.

NOTICE

■

If the fluid level is low or high

It is normal for the brake fluid level to go

down slightly as the brake pads wear out

or when the fluid level in the accumulator

is high.

If the reservoir needs frequent refilling,

there may be a serious problem.

Adding the washer fluid

WARNING

■

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.

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