Lexus LC (2021 year). Manual in english — page 20

417

6

6-3. Do-it-yourself maintenance

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Q

Effects of incorrect tire inflation pres-

sure

Driving with incorrect tire inflation pressure

may result in the following:

O

Reduced fuel economy

O

Reduced driving comfort and poor han-

dling

O

Reduced tire life due to wear

O

Reduced safety

O

Damage to the drivetrain

If a tire needs frequent inflating, have it

checked by any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer.

Q

Instructions for checking tire inflation

pressure

When checking tire inflation pressure,

observe the following:

O

Check only when the tires are cold.

If your vehicle has been parked for at

least 3 hours or has not been driven for

more than 1.5 km or 1 mile, you will get an

accurate cold tire inflation pressure read-

ing.

O

Always use a tire pressure gauge.

It is difficult to judge if a tire is properly

inflated based only on its appearance.

O

It is normal for the tire inflation pressure

to be higher after driving as heat is gen-

erated in the tire. Do not reduce tire infla-

tion pressure after driving.

O

Passengers and luggage weight should

be placed so that the vehicle is balanced.

WARNING

Q

When installing the tire

Failure to follow these precautions could

cause the wheel nuts to loosen and the

tire to fall off, resulting in death or serious

injury.

O

Never use oil or grease on the wheel

bolts or wheel nuts.

Oil and grease may cause the wheel

nuts to be excessively tightened, lead-

ing to bolt or disc wheel damage. In

addition, the oil or grease can cause

the wheel nuts to loosen and the wheel

may fall off, causing a serious accident.

Remove any oil or grease from the

wheel bolts or wheel nuts.

O

Have the wheel nuts tightened with a

torque wrench to 140 N•m (14.3

kgf•m, 103.3 ft•lbf) as soon as possible

after changing wheels.

O

Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

O

When installing a tire, only use wheel

nuts that have been specifically

designed for that wheel.

O

If there are any cracks or deformations

in the bolt screws, nut threads or bolt

holes of the wheel, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

Q

After using the tools

Before driving, make sure all the tools are

stored securely in place. Failure to do so

may cause injury in case of a collision or

sudden braking.

NOTICE

Q

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps



P.408

Tire inflation pressure

Make sure to maintain proper tire
inflation pressure. Tire inflation
pressure should be checked at least
once per month. However, Lexus
recommends that tire inflation
pressure be checked once every
two weeks.

418

6-3. Do-it-yourself maintenance

When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset

*

.

Replacement wheels are available at
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

*

: Conventionally referred to as offset.

Lexus does not recommend using the
following:



Wheels of different sizes or types



Used wheels



Bent wheels that have been straight-
ened

Q

When replacing wheels

The wheels of your vehicle are equipped

with tire pressure warning valves and trans-

mitters that allow the tire pressure warning

system to provide advance warning in the

event of a loss in tire inflation pressure.

Whenever wheels are replaced, tire pres-

sure warning valves and transmitters must

be installed. (



P.408)

WARNING

Q

Proper inflation is critical to save tire

performance

Keep your tires properly inflated.

If the tires are not properly inflated, the

following conditions may occur which

could lead to an accident resulting in

death or serious injury:

O

Excessive wear

O

Uneven wear

O

Poor handling

O

Possibility of blowouts resulting from

overheated tires

O

Air leaking from between tire and

wheel

O

Wheel deformation and/or tire dam-

age

O

Greater possibility of tire damage

while driving (due to road hazards,

expansion joints, sharp edges in the

road, etc.)

NOTICE

Q

When inspecting and adjusting tire

inflation pressure

Be sure to put the tire valve caps back on.

If a valve cap is not installed, dirt or mois-

ture may get into the valve and cause an

air leak, resulting in decreased tire infla-

tion pressure.

Wheels

If a wheel is bent, cracked or heavily
corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.

Wheel selection

419

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6-3. Do-it-yourself maintenance

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

Use only Lexus wheel nuts and
wrenches designed for use with
your aluminum wheels.



When rotating, repairing or chang-

ing your tires, check that the wheel
nuts are still tight after driving 1600
km (1000 miles).



Be careful not to damage the alumi-
num wheels when using tire chains.



Use only Lexus genuine balance
weights or equivalent and a plastic
or rubber hammer when balancing
your wheels.

WARNING

Q

When replacing wheels

O

Do not use wheels that are a different

size from those recommended in the

Owner’s Manual, as this may result in a

loss of handling control.

O

Never use an inner tube in a leaking

wheel which is designed for a tubeless

tire. Doing so may result in an acci-

dent, causing death or serious injury.

Q

Use of defective wheels prohibited

Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air

during driving, possibly causing an acci-

dent.

NOTICE

Q

Replacing tire pressure warning

valves and transmitters

O

Because tire repair or replacement

may affect the tire pressure warning

valves and transmitters, make sure to

have tires serviced by any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer or

other qualified service shop. In addi-

tion, make sure to purchase your tire

pressure warning valves and transmit-

ters at any authorized Lexus retailer or

Lexus authorized repairer, or any reli-

able repairer.

O

Ensure that only genuine Lexus wheels

are used on your vehicle.

Tire pressure warning valves and trans-

mitters may not work properly with

non-genuine wheels.

Aluminum wheel precautions

420

6-3. Do-it-yourself maintenance

1

Turn the engine switch <power
switch> off.

2

Open the glove box.

3

Remove the panel.

4

Unlock the filter cover (

), pull

the filter cover out of the claws
(

), and remove the filter cover.

5

Remove the filter case.

6

Remove the air conditioning filter
from the filter case and replace it
with a new one.

The “

UP” marks shown on the filter and

the filter case should be pointing up.

Q

Checking interval

Inspect and replace the air conditioning fil-

ter according to the maintenance schedule.

In dusty areas or areas with heavy traffic

flow, early replacement may be required.

(For scheduled maintenance information,

please refer to the “Lexus Service Booklet”

or “Lexus Warranty Booklet”.)

Q

If air flow from the vents decreases dra-

matically

The filter may be clogged. Check the filter

and replace if necessary.

Q

Air conditioning filter with deodorizing

function

When fragrances are placed in your vehi-

cle, the deodorizing effect may become

significantly weakened in a short period.

Air conditioning filter

The air conditioning filter must be
changed regularly to maintain air
conditioning efficiency.

Removing the air conditioning
filter

A

B

421

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6-3. Do-it-yourself maintenance

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When an air conditioning odor comes out

continuously, replace the air conditioning

filter.

Q

If the electronic key battery is depleted

The following symptoms may occur:

O

The smart entry & start system and wire-

less remote control will not function

properly.

O

The operational range will be reduced.

Q

When the card key battery needs to be

replaced (if equipped)

The battery for the card key is available only

at Lexus dealers. Your Lexus dealer can

replace the battery for you.

Prepare the following before replacing
the battery:



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2032

Q

Use a CR2032 lithium battery

O

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.

O

Replace only with the same or equivalent

type recommended by the manufacturer.

O

Dispose of used batteries according to

the local laws.

NOTICE

Q

When using the air conditioning sys-

tem

Make sure that a filter is always installed.

Using the air conditioning system without

a filter may cause damage to the system.

Q

To prevent damage to the filter cover

When moving the filter cover in the

direction of arrow to release the fitting,

pay attention not to apply excessive force

to the claws. Otherwise, the claws may

be damaged.

Electronic key battery

Replace the battery with a new one
if it is depleted.

Items to prepare

422

6-3. Do-it-yourself maintenance

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 using
a small flathead screwdriver.

Insert a new battery with the “+” terminal

facing up.

Replacing the battery

WARNING

Q

Removed battery and other parts

These parts are small and if swallowed by

a child, they can cause choking. Keep

away from children. Failure to do so

could result in death or serious injury.

Q

Certification for the electronic key

battery

CAUTION

RISK OF EXPLOSION IF BATTERY IS

REPLACED BY AN INCORRECT

TYPE.

DISPOSE OF USED BATTERIES

ACCORDING TO THE

INSTRUCTIONS

NOTICE

Q

When replacing the battery

Use a screwdriver of appropriate size.

Applying excessive force may deform or

damage the cover.

Q

For normal operation after replacing

the battery

Observe the following precautions to

prevent accidents:

O

Always work with dry hands.

Moisture may cause the battery to

rust.

O

Do not touch or move any other com-

ponent inside the remote control.

O

Do not bend either of the battery ter-

minals.

423

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1

Turn the engine switch <power
switch> off.

2

Open the fuse box cover.



Engine compartment: type A fuse
box (LC500)

Left-hand drive vehicles:
Push the tab in and lift the lid off.

Right-hand drive vehicles:
Push the tab in and lift the lid off.



Engine compartment: type B fuse
box (LC500h)

Left-hand drive vehicles:
Push the tab in and lift the lid off.

Right-hand drive vehicles:
Push the tab in and lift the lid off.



Engine compartment: type C fuse
box (LC500h)

Push the tab in and lift the lid off.



Trunk

Remove the luggage mat.

Checking and replacing
fuses

If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.

Checking and replacing fuses

424

6-3. Do-it-yourself maintenance

Push the tab in and lift the lid off.



Driver’s side instrument panel

Left-hand drive vehicles:
Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.

Right-hand drive vehicles:
Push the tab in and remove the lid.

Make sure to push the tab in during
removal or installation.



Front passenger’s side instrument
panel

Left-hand drive vehicles:
Remove the cover, and then remove the
footwell light connector.

Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.

425

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6-3. Do-it-yourself maintenance

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Right-hand drive vehicles:
Remove the cover, and then remove the
footwell light connector.

Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.

3

Remove the fuse with the pullout
tool.

Only type A fuses can be removed using

the pullout tool.



LC500



LC500h

4

Check if the fuse is blown.

Type A and B:

Replace the blown fuse with a new fuse of

an appropriate amperage rating. The

amperage rating can be found on the fuse

box lid.
Type C and D:

Contact any authorized Lexus retailer or

426

6-3. Do-it-yourself maintenance

Lexus authorized repairer, or any reliable

repairer.



Type A

Normal fuse

Blown fuse



Type B

Normal fuse

Blown fuse



Type C

Normal fuse

Blown fuse



Type D

Normal fuse

Blown fuse

Q

After a fuse is replaced

O

When installing the lid, make sure that the

tab is installed securely.

O

If the lights do not turn on even after the

fuse has been replaced, a bulb may need

replacement. (



P.427)

O

If the replaced fuse blows again, have the

vehicle inspected by any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

Q

If there is an overload in a circuit

The fuses are designed to blow, protecting

the wiring harness from damage.

Q

When replacing light bulbs

Lexus recommends that you use genuine

Lexus products designed for this vehicle.

Because certain bulbs are connected to cir-

cuits designed to prevent overload, non-

genuine parts or parts not designed for this

vehicle may be unusable.

A
B

A
B

A

WARNING

Q

To prevent system breakdowns and

vehicle fire

Observe the following precautions.

Failure to do so may cause damage to

the vehicle, and possibly a fire or injury.

B

A
B

427

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6-3. Do-it-yourself maintenance

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Rear fog light

Q

Bulbs that need to be replaced by
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer



Headlights



Front position lights and daytime
running lights



Front turn signal lights



Cornering lights

WARNING

O

Never use a fuse of a higher amperage

rating than that indicated, or use any

other object in place of a fuse.

O

Always use a genuine Lexus fuse or

equivalent.

Never replace a fuse with a wire, even

as a temporary fix.

O

Do not modify the fuses or fuse boxes.

NOTICE

Q

Before replacing fuses

Have the cause of electrical overload

determined and repaired by any autho-

rized Lexus retailer or Lexus authorized

repairer, or any reliable repairer as soon

as possible.

Light bulbs

You may replace the following bulbs
by yourself. Before replacing,
check the wattage of the light bulb
to be replaced. As there is a danger
that components may be damaged,
we recommend that replacement is
carried out by any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer.

Bulb location

A

428

6-3. Do-it-yourself maintenance



Side turn signal lights



Tail lights



Stop lights



Rear turn signal lights



Back-up lights



High mounted stoplight



License plate lights

Q

LED lights

The lights other than the rear fog light each

consist of a number of LEDs. If any of the

LEDs burn out, take your vehicle to any

authorized Lexus retailer or Lexus autho-

rized repairer, or any reliable repairer to

have the light replaced.

Q

Condensation build-up on the inside of

the lens

Temporary condensation build-up on the

inside of the headlight lens does not indi-

cate a malfunction. Contact any authorized

Lexus retailer or Lexus authorized repairer,

or any reliable repairer for more informa-

tion in the following situations:

O

Large drops of water have built up on the

inside of the lens.

O

Water has built up inside the headlight.

Q

When replacing light bulbs



P.426

Q

Rear fog light

1

Disconnect the connector.

2

Turn the bulb base counterclock-
wise.

3

Remove the light bulb.

4

Install a new light bulb then install
the bulb base to the light unit by

Replacing light bulb

429

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6-3. Do-it-yourself maintenance

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inserting it and turning the bulb
base clockwise.

5

Reconnect the connector.

After reconnecting the connector, turn on

the rear fog light to visually check that

there is no light leaking from the bulb base.

WARNING

Q

Replacing light bulb

O

Turn off the light. Do not attempt to

replace the bulb immediately after

turning off the light.

The bulb become very hot and may

cause burns.

O

Do not touch the glass portion of the

light bulb with bare hands. When it is

unavoidable to hold the glass portion,

use and hold with a clean dry cloth to

avoid getting moisture and oils on the

bulb.

Also, if the bulb is scratched or

dropped, it may blow out or crack.

O

Fully install light bulb and any parts

used to secure it. Failure to do so may

result in heat damage, fire, or water

entering the light unit. This may dam-

age the light or cause condensation to

build up on the lens.

Q

To prevent damage or fire

O

Make sure bulb is fully seated and

locked.

O

Check the wattage of the bulb before

installing to prevent heat damage.

7

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7

Wh
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troubl
e ar
ises

When trouble arises

7-1. Essential information

Emergency flashers . . . . .

432

If your vehicle has to be stopped in

an emergency. . . . . . ..

433

If the vehicle is trapped in rising

water. . . . . . . . . . .

434

7-2. Steps to take in an emergency

If your vehicle needs to be towed

. . . . . . . . . . . . . .

435

If you think something is wrong

. . . . . . . . . . . . . .

439

Fuel pump shut off system

(LC500) . . . . . . . . ...

440

If a warning light turns on or a

warning buzzer sounds . .

441

If a warning message is displayed

. . . . . . . . . . . . . . .

451

If you have a flat tire. . . . ..

457

If the engine will not start

(LC500) . . . . . . . . ...

458

If the hybrid system will not start

(LC500h). . . . . . . . .

459

If you lose your keys. . . . ..

461

If the fuel filler door cannot be

opened . . . . . . . . . .

461

If the electronic key does not

operate properly . . . . .

462

If the 12-volt battery is discharged

. . . . . . . . . . . . . .

465

If your vehicle overheats

(LC500) . . . . . . . . ...

474

If your vehicle overheats

(LC500h). . . . . . . . .

476

If the vehicle becomes stuck

480

432

7-1. Essential information

7-1.Essential information

Press the switch to flash all of the turn
signal lights.
To turn them off, press the switch once
again.

Q

Emergency flashers

O

LC500: If the emergency flashers are

used for a long time while the engine is

not running, the 12-volt battery may dis-

charge.

LC500h: If the emergency flashers are

used for a long time while the hybrid sys-

tem is not operating (while the “READY”

indicator is not illuminated), the 12-volt

battery may discharge.

O

If any of the SRS airbags deploy (inflate)

or in the event of a strong rear impact, the

emergency flashers will turn on automati-

cally. The emergency flashers will turn off

automatically after operating for approxi-

mately 20 minutes. To manually turn the

emergency flashers off, press the switch

twice. (The emergency flashers may not

turn on automatically depending on the

force of the impact and conditions of the

collision.)

Emergency flashers

The emergency flashers are used to
warn other drivers when the vehicle
has to be stopped in the road due to
a breakdown, etc.

Operating instructions

433

7

7-1. Essential information

Wh
en

troubl
e ar
ises

1

Steadily step on the brake pedal
with both feet and firmly depress it.

Do not pump the brake pedal repeatedly

as this will increase the effort required to

slow the vehicle.

2

Shift the shift position to N.



If the shift position is shifted to N

3

After slowing down, stop the vehi-
cle in a safe place by the road.

4

Stop the engine <hybrid system>.



If the shift position cannot be shifted
to N

3

Keep depressing the brake pedal
with both feet to reduce vehicle
speed as much as possible.

4

To stop the engine <hybrid system>,
press and hold the engine switch
<power switch> for 2 consecutive

seconds or more, or press it briefly
3 times or more in succession.

5

Stop the vehicle in a safe place by
the road.

If your vehicle has to be
stopped in an emergency

Only in an emergency, such as if it
becomes impossible to stop the
vehicle in the normal way, stop the
vehicle using the following proce-
dure:

Stopping the vehicle

WARNING

Q

If the engine <hybrid system> has to

be turned off while driving

Power assist for the steering wheel will

be lost, making the steering wheel

heavier to turn. Decelerate as much as

possible before turning off the engine

<hybrid system>.