Lexus LC Cabriolet (2021 year). Manual in english — page 17

360

6-3. Do-it-yourself maintenance



Stop the vehicle in a safe place on a

hard, flat surface.



Set the parking brake.



Shift the shift position to P.



Turn off the intrusion sensor and tilt
sensor (



P.79)



Stop the engine.

Q

Tools

As your vehicle is equipped with run-flat

tires, the following tools for replacing a tire

are not included with your vehicle. They can

be purchased at your Lexus dealer.

O

Wheel nut wrench

O

Jack

O

Jack handle

Screwdriver

Wheel nut wrench

*

Jack

*

Replacing the tire

When raising your vehicle with a
jack, position the jack correctly.
Improper placement may damage
your vehicle or cause injury.
If necessary tire replacement
seems difficult to perform, contact
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer.

Before jacking up the vehicle

Location of the tools

A
B
C

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6-3. Do-it-yourself maintenance

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Jack handle

*

Towing eyelet

*

: They can be purchased at your Lexus dealer.

1

Chock the tires.

2

Slightly loosen the wheel nuts (one
turn).

D

E

WARNING

Q

Using the tire jack

Observe the following precautions.

Improper use of the tire jack may cause

the vehicle to suddenly fall off the jack,

leading to death or serious injury.

O

Do not use the tire jack for any pur-

pose other than replacing tires.

O

Do not use other tire jacks for replac-

ing tires on this vehicle.

O

Put the jack properly in its jack point.

O

Do not put any part of your body under

the vehicle while it is supported by the

jack.

O

Do not start the engine or drive the

vehicle while the vehicle is supported

by the jack.

O

Do not raise the vehicle while some-

one is inside.

O

When raising the vehicle, do not put an

object on or under the jack.

O

Do not raise the vehicle to a height

greater than that required to replace

the tire.

O

Use a jack stand if it is necessary to get

under the vehicle.

O

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

Removing a tire

Tire

Wheel chock positions

Front left-
hand side

Behind the rear right-hand
side tire

Front right-
hand side

Behind the rear left-hand
side tire

Rear left-
hand side

In front of the front right-
hand side tire

Rear right-
hand side

In front of the front left-hand
side tire

362

6-3. Do-it-yourself maintenance

3

Turn the tire jack portion

by

hand until the notch of the jack is in
contact with the jack point.

The jack point guides are located under

the rocker panel. They indicate the jack

point positions.

4

Raise the vehicle until the tire is
slightly raised off the ground.

5

Remove all the wheel nuts and the
tire.

When resting the tire on the ground, place

the tire so that the wheel design faces up to

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

A

WARNING

Q

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

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6

6-3. Do-it-yourself maintenance

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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:

140 N•m (14.3 kgf•m, 103.3 ft•lbf)

5

Stow all the tools.

A
B

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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 reli-

able 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 gener-

ated 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.356

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 infla-
tion pressure be checked once
every two weeks.

366

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
straightened

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.356)

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 heav-
ily corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.

Wheel selection

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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

transmitters may not work properly

with non-genuine wheels.

Aluminum wheel precautions

368

6-3. Do-it-yourself maintenance

1

Turn the engine 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 sig-

nificantly 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

369

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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 with-

out a filter may cause damage to the sys-

tem.

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

370

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

Battery precautions

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

O

Do not swallow the battery. Doing so

may cause chemical burns.

O

A coin battery or button battery is

used in the electronic key. If a battery

is swallowed, it may cause severe

chemical burns in as little as 2 hours

and may result in death or serious

injury.

O

Keep away new and removed batter-

ies from children.

O

If the cover cannot be firmly closed,

stop using the electronic key and stow

the key in the place where children

cannot reach, and then contact any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

O

If you accidentally swallow a battery or

put a battery into a part of your body,

get emergency medical attention

immediately.

Q

To prevent battery explosion or leak-

age of flammable liquid or gas

O

Replace the battery with a new battery

of the same type. If a wrong type of

battery is used, it may explode.

O

Do not expose batteries to extremely

low pressure due to high altitude or

extremely high temperatures.

O

Do not burn, break or cut a battery.

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6-3. Do-it-yourself maintenance

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1

Turn the engine switch off.

2

Open the fuse box cover.



Engine compartment:

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.



Trunk

Remove the luggage mat.

WARNING

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.

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

372

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.

373

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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.

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

Lexus authorized repairer, or any reliable

repairer.



Type A

374

6-3. Do-it-yourself maintenance

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.375)

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
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.

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.

B

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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

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

376

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.374

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