LEXUS LC 500 (2019 year). Instruction — part 20

312

6-3. Do-it-yourself maintenance

avoid scratching the wheel surface.

1

Remove any dirt or foreign matter
from the wheel contact surface.

If foreign matter is on the wheel contact

surface, the wheel nuts may loosen while

the vehicle is in motion, causing the tire to

come off.

2

Install the tire and loosely tighten
each wheel nut by hand by approxi-
mately the same amount.

Turn the wheel nuts until the washers come

into contact with the disc wheel.

Disc wheel

Washer

3

Lower the vehicle.

4

Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.

Tightening torque:

103.3 ft•lbf (140 N•m, 14.3 kgf•m)

5

Stow all the tools.

WARNING

■

Replacing a tire

Do not touch the disc wheels or the area

around the brakes immediately after the

vehicle has been driven.

After the vehicle has been driven the disc

wheels and the area around the brakes

will be extremely hot. Touching these

areas with hands, feet or other body

parts while changing a tire, etc. may

result in burns.

Installing the tire

A
B

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6-3. Do-it-yourself maintenance

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The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(

P.379)

Tire valve

WARNING

■

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.

●

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.

●

Have the wheel nuts tightened with a

torque wrench to 103.3 ft•lbf (140

N•m, 14.3 kgf•m) soon as possible

after changing wheels.

●

Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

●

When installing a tire, only use wheel

nuts that have been specifically

designed for that wheel.

●

If there are any cracks or deformations

in the bolt screws, nut threads or bolt

holes of the wheel, have the vehicle

inspected by your Lexus dealer.

■

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

■

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps

P.306

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-
cedure

A

314

6-3. Do-it-yourself maintenance

Tire pressure gauge

1

Remove the tire valve cap.

2

Press the tip of the tire pressure
gauge onto the tire valve.

3

Read the pressure using the gauge
gradations.

4

If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.

5

After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.

6

Put the tire valve cap back on.

■

Tire inflation pressure check interval

You should check tire inflation pressure

every two weeks, or at least once a month.

Do not forget to check the spare.

■

Effects of incorrect tire inflation pres-

sure

Driving with incorrect tire inflation pressure

may result in the following:

●

Reduced fuel economy

●

Reduced driving comfort and poor han-

dling

●

Reduced tire life due to wear

●

Reduced safety

●

Damage to the drivetrain

If a tire needs frequent inflating, have it

checked by your Lexus dealer.

■

Instructions for checking tire inflation

pressure

When checking tire inflation pressure,

observe the following:

●

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 mile or 1.5 km, you will get an

accurate cold tire inflation pressure read-

ing.

●

Always use a tire pressure gauge.

It is difficult to judge if a tire is properly

inflated based only on its appearance.

●

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.

●

Never exceed the vehicle capacity

weight.

Passengers and luggage weight should

be placed so that the vehicle is balanced.

B

WARNING

■

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:

●

Excessive wear

●

Uneven wear

●

Poor handling

●

Possibility of blowouts resulting from

overheated tires

●

Air leaking from between tire and

wheel

●

Wheel deformation and/or tire dam-

age

●

Greater possibility of tire damage

while driving (due to road hazards,

expansion joints, sharp edges in the

road, etc.)

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6-3. Do-it-yourself maintenance

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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
your Lexus dealer.

*

: 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

■

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.305)

NOTICE

■

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

WARNING

■

When replacing wheels

●

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.

316

6-3. Do-it-yourself maintenance

 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 1000
miles (1600 km).

 Use only Lexus genuine balance

weights or equivalent and a plastic
or rubber hammer when balancing
your wheels.

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.

WARNING

●

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.

■

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

■

Replacing tire pressure warning

valves and transmitters

●

Because tire repair or replacement

may affect the tire pressure warning

valves and transmitters, make sure to

have tires serviced by your Lexus

dealer or other qualified service shop.

In addition, make sure to purchase

your tire pressure warning valves and

transmitters at your Lexus dealer.

●

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

Air conditioning filter

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

Removing the air conditioning
filter

A

B

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6-3. Do-it-yourself maintenance

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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.

■

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 “Owner’s Manual Sup-

plement” or “Scheduled Maintenance”.)

■

If air flow from the vents decreases dra-

matically

The filter may be clogged. Check the filter

and replace if necessary.

■

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.

When an air conditioning odor comes out

continuously, replace the air conditioning

filter.

NOTICE

■

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.

■

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.

318

6-3. Do-it-yourself maintenance

■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart access system with push-but-

ton start and wireless remote control will

not function properly.

●

The operational range will be reduced.

■

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

■

Use a CR2032 lithium battery

●

Batteries can be purchased at your Lexus

dealer, 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 using
a small flathead screwdriver.

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

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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)

Push the tab in and lift the lid off.



Engine compartment: type B fuse
box (LC500h)

Push the tab in and lift the lid off.

WARNING

■

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.

NOTICE

■

When replacing the battery

Use a screwdriver of appropriate size.

Applying excessive force may deform or

damage the cover.

■

For normal operation after replacing

the battery

Observe the following precautions to

prevent accidents:

●

Always work with dry hands.

Moisture may cause the battery to

rust.

●

Do not touch or move any other com-

ponent inside the remote control.

●

Do not bend either of the battery ter-

minals.

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

320

6-3. Do-it-yourself maintenance



Engine compartment: type C fuse
box (LC500h)

Push the tab in and lift the lid off.



Trunk

Remove the luggage mat.

Push the tab in and lift the lid off.



Driver’s side instrument panel

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

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.

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6-3. Do-it-yourself maintenance

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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 your Lexus dealer.



Type A

Normal fuse

Blown fuse



Type B

Normal fuse

Blown fuse



Type C

Normal fuse

Blown fuse

A
B

A
B

A
B

322

6-3. Do-it-yourself maintenance



Type D

Normal fuse

Blown fuse

■

After a fuse is replaced

●

When installing the lid, make sure that the

tab is installed securely.

●

If the lights do not turn on even after the

fuse has been replaced, a bulb may need

replacement. (

P.324)

●

If the replaced fuse blows again, have the

vehicle inspected by your Lexus dealer.

■

If there is an overload in a circuit

The fuses are designed to blow, protecting

the wiring harness from damage.

■

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.

WARNING

■

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.

●

Never use a fuse of a higher amperage

rating than that indicated, or use any

other object in place of a fuse.

A
B

●

Always use a genuine Lexus fuse or

equivalent.

Never replace a fuse with a wire, even

as a temporary fix.

●

Do not modify the fuses or fuse boxes.

NOTICE

■

Before replacing fuses

Have the cause of electrical overload

determined and repaired by your Lexus

dealer as soon as possible.

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6-3. Do-it-yourself maintenance

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Adjustment bolt A

Adjustment bolt B

 Make sure the vehicle has a full tank

of gasoline and the area around the
headlight is not deformed.

 Park the vehicle on level ground.
 Make sure the tire inflation pressure

is at the specified level.

 Have someone sit in the driver’s

seat.

 Bounce the vehicle several times.

1

Using a Phillips-head screwdriver,
turn bolt A in either direction.

2

Turn bolt B in either direction as
step

1

.

If the headlight cannot be adjusted using

this procedure, take the vehicle to your

Lexus dealer to adjust the headlight aim.

Headlight aim

Vertical movement adjusting
bolts

Before checking the headlight
aim

A
B

Adjusting the headlight aim

324

6-3. Do-it-yourself maintenance

■

LED lights

The following lights consist of a number of

LEDs. If any of the LEDs burn out, take your

vehicle to your Lexus dealer to have the

light replaced.

●

Headlights

●

Parking lights and daytime running lights

●

Front side marker lights

●

Front turn signal lights

●

Cornering lights

●

Side turn signal lights

●

Tail lights

●

Stop lights

●

Rear side marker lights

●

Rear turn signal lights

●

Back-up lights

●

High mounted stoplight

●

License plate lights

■

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 your Lexus

dealer for more information in the following

situations:

●

Large drops of water have built up on the

inside of the lens.

●

Water has built up inside the headlight.

Light bulbs

If any lights burn out, have it
replaced by your Lexus dealer.

WARNING

■

Handling lights

Do not touch the lights while they are on

or immediately after they have been

turned off. Doing so may result in burns.

325

7

7

When trouble

ari

ses

When trouble arises

7-1. Essential information

Emergency flashers. . . . ..

326

If your vehicle has to be stopped in

an emergency. . . . . . ..

326

If the vehicle is trapped in rising

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

327

7-2. Steps to take in an emergency

If your vehicle needs to be towed

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

329

If you think something is wrong

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

333

Fuel pump shut off system

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

334

If a warning light turns on or a

warning buzzer sounds . ...

335

If a warning message is displayed

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

344

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

350

If the engine will not start

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

351

If the hybrid system will not start

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

352

If you lose your keys. . . . .

354

If the fuel filler door cannot be

opened. . . . . . . . . .

354

If the electronic key does not

operate properly . . . . .

355

If the 12-volt battery is discharged

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

357

If your vehicle overheats

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

364

If your vehicle overheats

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

366

If the vehicle becomes stuck

370

326

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.

■

Emergency flashers

LC500: If the emergency flashers are used

for a long time while the engine is not run-

ning, the 12-volt battery may discharge.
LC500h: If the emergency flashers are

used for a long time while the hybrid system

is not operating (while the “READY” indica-

tor is not illuminated), the 12-volt battery

may discharge.

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

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

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

327

7-1. Essential information

7

When trouble

ari

ses

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

5

Stop the vehicle in a safe place by
the road.

 Remove the seat belt first.
 If the door can be opened, open the

door and exit the vehicle.

 If the door can not be opened, open

the window using the power window
switch and exit the vehicle through
the window.

 If the window can not be opened

using the power window switch,
remain calm, wait until the water
level inside the vehicle rises to the
point that the water pressure inside
of the vehicle equals the water pres-
sure outside of the vehicle, and then
open the door and exit the vehicle.

WARNING

■

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>.

If the vehicle is trapped in
rising water

In the event the vehicle is sub-
merged in water, remain calm and
perform the following.

WARNING

■

Using an emergency hammer

*

for

emergency escape

The front side windows and rear side

windows, as well as the rear window can
be shattered by an emergency hammer

*

used for emergency escape.
However, an emergency hammer can

not shatter the windshield as it is lami-

nated glass.

*

: Contact your Lexus dealer or after-

market accessory manufacturer for
further information about an emer-
gency hammer.