Lexus IS500 (2022 year). Manual in english - page 18

 

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Lexus IS500 (2022 year). Manual in english - page 18

 

 

297

6-3. Do-it-yourself maintenance

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When to replace your vehicle’s tires

Tires should be replaced if:

The treadwear indicators are showing on 

a tire.

You have tire damage such as cuts, splits, 

cracks deep enough to expose the fabric, 

and bulges indicating internal damage

A tire goes flat repeatedly or cannot be 

properly repaired due to the size or loca-

tion of a cut or other damage

If you are not sure, consult with your Lexus 

dealer.

Tire life

Any tire over 6 years old must be checked 

by a qualified technician even if it has sel-

dom or never been used or damage is not 

obvious.

Maximum load of tire

Check that the maximum load of the 

replacement tire is greater than 1/2 of the 

Gross Axle Weight Ratings (GAWR) of 

either the front axle or the rear axle, which-

ever is greater.
For the GAWR, see the Certification Label. 

For the maximum load of the tire, see the 

load limit at maximum cold tire inflation 

pressure mentioned on the sidewall of the 

tire. (

P.378)

Tire types

Summer tires

Summer tires are high-speed performance 
tires best suited to highway driving under 
dry conditions. Since summer tires do not 
have the same traction performance as 
snow tires, summer tires are inadequate for 
driving on snow-covered or icy roads. For 
driving on snow-covered roads or icy 

roads, the use of snow tires is recom-
mended. When installing snow tires, be 
sure to replace all four tires.

All season tires

All season tires are designed to provide 
better traction in snow and to be adequate 
for driving in most winter conditions as well 
as for use year-round. All season tires, 
however, do not have adequate traction 
performance compared with snow tires in 
heavy or loose snow. Also, all season tires 
fall short in acceleration and handling per-
formance compared with summer tires in 
highway driving.

Snow tires

For driving on snow-covered roads or icy 
roads, we recommend using snow tires. If 
you need snow tires, select tires of the 
same size, construction and load capacity 
as the originally installed tires. Since your 
vehicle has radial tires as original equip-
ment, make sure your snow tires also have 
radial construction. Do not install studded 
tires without first checking local regula-
tions for possible restrictions. Snow tires 
should be installed on all wheels. 
(

P.234)

Low profile tires

Generally, low profile tires will wear more 

rapidly and tire grip performance will be 

reduced on snowy and/or icy roads when 

compared to standard tires. Be sure to use 

snow tires or tire chains* on snowy and/or 

icy roads and drive carefully at a speed 

appropriate for road and weather condi-

tions.

*

: Vehicles with front and rear tires of dif-

fering sizes: Tire chains cannot be 
mounted. Snow tires should be used 
instead.

If the tread on snow tires wears down 

below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is 

lost.

298

6-3. Do-it-yourself maintenance

Rotate the tires in the order shown.

Vehicles with front and rear tires of 
the same size

To equalize tire wear and extend tire 
life, Lexus recommends that tire rota-
tion is carried out at the same interval 
as tire inspection.
Do not fail to initialize the tire pressure 
warning system after tire rotation.

Vehicles with front and rear tires of 
differing sizes

Tires cannot be rotated.

When rotating the tires

Make sure that the engine switch is off. If the 

tires are rotated while the engine switch is in 

IGNITION ON mode, the tire position 

information will not be updated.

WARNING

When inspecting or replacing tires

Observe the following precautions to 

prevent accidents.

Failure to do so may cause damage to 

parts of the drive train as well as danger-

ous handling characteristics, which may 

lead to an accident resulting in death or 

serious injury.

Do not mix tires of different makes, 

models or tread patterns.

Also, do not mix tires of remarkably 

different treadwear.

Do not use tire sizes other than those 

recommended by Lexus.

Do not mix differently constructed 

tires (radial, bias-belted or bias-ply 

tires).

Do not mix summer, all season and 

snow tires.

Do not use tires that have been used 

on another vehicle.

Do not use tires if you do not know 

how they were used previously.

Do not tow if your vehicle has a com-

pact spare tire installed.

NOTICE

Driving on rough roads

Take particular care when driving on 

roads with loose surfaces or potholes.

These conditions may cause losses in tire 

inflation pressure, reducing the cushion-

ing ability of the tires. In addition, driving 

on rough roads may cause damage to 

the tires themselves, as well as the vehi-

cle’s wheels and body.

Low profile tires

Low profile tires may cause greater dam-

age than usual to the tire wheel when 

sustaining impact from the road surface. 

Therefore, pay attention to the following:

Be sure to use proper tire inflation 

pressure. If tires are under-inflated, 

they may be damaged more severely.

Avoid potholes, uneven pavement, 

curbs and other road hazards. Failure 

to do so may lead to severe tire and 

wheel damage.

If tire inflation pressure of each tire 

becomes low while driving

Do not continue driving, or your tires 

and/or wheels may be ruined.

Tire rotation

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6-3. Do-it-yourself maintenance

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If this accidentally occurs, either turn the 

engine switch to off and then to IGNITION 

ON mode, or initialize the system after 

checking that the tire pressure is properly 

adjusted.

Your vehicle is equipped with a tire 
pressure warning system that uses tire 
pressure warning valves and transmit-
ters to detect low tire inflation pressure 
before serious problems arise.

The tire pressure detected by the 
tire pressure warning system can be 
displayed on the multi-information 
display.

If the tire pressure drops below a 
predetermined level, the driver is 
warned by a screen display and a 
warning light. (

P.333)

Routine tire inflation pressure checks

The tire pressure warning system does not 

replace routine tire inflation pressure 

checks. Make sure to check tire inflation 

pressure as part of your routine of daily 

vehicle checks.

Tire inflation pressure

It may take a few minutes to display the 

tire inflation pressure after the engine 

switch is turned to IGNITION ON mode. 

It may also take a few minutes to display 

the tire inflation pressure after inflation 

pressure has been adjusted.

Tire inflation pressure changes with tem-

perature. The displayed values may also 

be different from the values measured 

using a tire pressure gauge.

Situations in which the tire pressure 

warning system may not operate prop-

erly

In the following cases, the tire pressure 

warning system may not operate prop-

erly.

• If non-genuine Lexus wheels are used.

• If a tire has been replaced with a tire that 

is not an OE (Original Equipment) tire.

• If a tire has been replaced with a tire that 

is not of the specified size.

• If tire chains, etc. are installed.

• An auxiliary-supported run-flat tire is 

equipped.

• If a window tint that affects the radio wave 

signals is installed.

• If there is a lot of snow or ice on the vehi-

cle, particularly around the wheels or 

wheel housings.

• If the tire inflation pressure is extremely 

higher than the specified level.

• If tires not equipped with tire pressure 

warning valves and transmitters are used.

• If the ID code on the tire pressure warn-

ing valves and transmitters is not regis-

tered in the tire pressure warning 

computer.

Performance may be affected in the fol-

lowing situations.

• When driving near a TV tower, electric 

power plant, gas station, radio station, 

large display, airport or other facility that 

generates strong radio waves or electri-

cal noise

• When carrying a portable radio, cellular 

phone, cordless phone or other wireless 

Tire pressure warning system

300

6-3. Do-it-yourself maintenance

communication device

If tire position information is not correctly 

displayed due to the radio wave conditions, 

the display may be corrected by driving and 

changing the radio wave conditions.

When the vehicle is parked, the time 

taken for the warning to start or go off 

could be extended.

When tire inflation pressure declines rap-

idly for example when a tire has burst, the 

warning may not function.

Warning performance of the tire pres-

sure warning system

The warning of the tire pressure warning 

system will change in accordance with driv-

ing conditions. For this reason, the system 

may give a warning even if the tire pressure 

does not reach a low enough level, or if the 

pressure is higher than the pressure that 

was adjusted to when the system was initial-

ized.

When replacing the tires or wheels, the 
tire pressure warning valve and trans-
mitters must be installed to the wheels 
which will be installed to the vehicle.
When new tire pressure warning 
valves and transmitters are installed, 
new ID codes must be registered in the 
tire pressure warning computer and 
the tire pressure warning system must 
be initialized. (

P.302)

Replacing tires and wheels

If the ID code of the tire pressure warning 

valve and transmitter is not registered, the 

tire pressure warning system will not work 

properly. After driving for about 20 min-

utes, the tire pressure warning light blinks 

for 1 minute and stays on to indicate a sys-

tem malfunction.

The tire pressure warning system 
must be initialized in the following 
circumstances:

When rotating the tires.

When the tire inflation pressure is 
changed such as when changing 
traveling speed or load weight.

When changing the tire size.

When the tire pressure warning system 
is initialized, the current tire inflation 

Installing tire pressure warning 
valves and transmitters

NOTICE

Repairing or replacing tires, wheels, 

tire pressure warning valves, trans-

mitters and tire valve caps

When removing or fitting the wheels, 

tires or the tire pressure warning 

valves and transmitters, contact your 

Lexus dealer as the tire pressure warn-

ing valves and transmitters may be 

damaged if not handled correctly.

Make sure to install the tire valve caps. 

If a tire valve cap is not installed, water 

may enter the valve and cause it to 

corrode, possibly leading to the valve 

sticking or air to leak from the tire.

When replacing tire valve caps, do not 

use tire valve caps other than those 

specified. The cap may become stuck.

To avoid damage to the tire pressure 

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and 

transmitter may not operate properly. If a 

liquid sealant is used, contact your Lexus 

dealer or other qualified service shop as 

soon as possible. After use of liquid seal-

ant, make sure to replace the tire pres-

sure warning valve and transmitter when 

repairing or replacing the tire.

Initializing the tire pressure 
warning system

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6-3. Do-it-yourself maintenance

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pressure is set as the benchmark pres-
sure.

How to initialize the tire pressure 
warning system

1

Park the vehicle in a safe place, turn 
the engine switch off and wait 20 
minutes or more.

Initialization cannot be performed while 

the vehicle is moving.

2

Adjust the tire inflation pressure to 
the specified cold tire inflation pres-
sure level.

Make sure to adjust the tire pressure to the 

specified cold tire inflation pressure level. 

The tire pressure warning system will oper-

ate based on this pressure level.

3

Start the engine. (

P.130)

4

Press and hold the tire pressure 
warning reset switch until the tire 
pressure warning light blinks slowly 
3 times.

Then a message will be displayed on the 

multi-information display.

5

Drive straight (with occasional left 
and right turns) at approximately 
25 mph (40 km/h) or more for 
approximately 10 to 30 minutes.

Initialization is complete when the position 

of each tire is determined and the inflation 

pressure of each tire is displayed on the 

multi-information display.

Initialization procedure

Make sure to perform the initialization 

procedure after adjusting the tire inflation 

pressure.

Also, make sure the tires are cold before 

performing the initialization procedure or 

adjusting the tire inflation pressure.

If you have accidentally turned the engine 

switch off during initialization, it is not 

necessary to press the reset switch again 

as initialization will restart automatically 

when the engine switch has been turned 

to IGNITION ON mode for the next 

time.

If you accidentally press the reset switch 

when initialization is not necessary, adjust 

the tire inflation pressure to the specified 

level when the tires are cold, and conduct 

initialization again.

While the position of each tire is being 

determined and the inflation pressures 

are not being displayed on the 

multi-information display, if the inflation 

pressure of a tire drops, the tire pressure 

warning light will come on.

If the tire pressure warning system is not 

initialized properly

In the following situations, initialization 

may take longer than usual to be com-

pleted or may not be possible. (Usually, 

the vehicle will need to be driven for 

approximately 10 to 30 minutes to com-

plete initialization.) If initialization is not 

complete after driving approximately 30 

minutes, continue driving for a while.

• If the vehicle is driven on an unpaved 

road, it may take longer to complete ini-

tialization.

• If the vehicle is backed up while perform-

ing initialization, data collected during ini-

tialization will be cleared and it will take 

longer than normal to complete.

• If the vehicle is driven in heavy traffic or 

another situation where other vehicles 

are driven close by, it may take time for 

the system to recognize the tire pressure 

warning valve and transmitters of your 

vehicle over those of other vehicles.

If initialization is not complete after driving 

for approximately 1 hour, park the vehicle in 

302

6-3. Do-it-yourself maintenance

a safe place for approximately 20 minutes 

and then drive the vehicle again.

In the following situations, initialization 

will not be started or was not completed 

properly and the system will not operate 

properly. Perform the initialization proce-

dure again.

• If, when attempting to start initialization, 

the tire pressure warning light does not 

blink 3 times.

• If, when the vehicle has been driven for 

about 20 minutes after performing ini-

tialization, the tire pressure warning light 

blinks for approximately 1 minute and 

then illuminates.

If initialization cannot be completed after 

performing the above procedure, con-

tact your Lexus dealer.

Every tire pressure warning valve and 
transmitter has a unique ID code. 
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary 
to register the ID codes.

1

Park the vehicle in a safe place, turn 
the engine switch off, wait 20 min-
utes or more, and then start the 
engine.

Registering cannot be performed while the 

vehicle is moving.

2

Start the engine. (

P.130)

3

Press the tire pressure warning 
reset switch 3 times quickly.

The tire pressure warning light will blink 

slowly 3 times.
Sensor registration mode will be entered 

and ID codes registration will begin.
A message will be displayed on the 

multi-information display and “- -” will be 

displayed for the tire inflation pressure of 

each tire.
After this, the tire pressure warning light 

will blink for 1 minute and then illuminate.

4

Wait approximately 2 minutes.

If the ID codes are already registered, the 

tire pressure warning light will turn off.

If the tire pressure warning light 
turns off

5

Initialize the tire pressure warning 
system. (

P.300)

If the tire pressure warning light 
does not turn off

5

Drive at approximately 25 mph 
(40 km/h) or more until the tire 
pressure warning light turns off.

6

Initialize the tire pressure warning 
system. (

P.301)

When registering ID codes

Before performing ID code registration, 

make sure that no wheels with tire pres-

sure warning valve and transmitters 

installed are near the vehicle.

WARNING

When initializing the tire pressure 

warning system

Do not operate the tire pressure warning 

reset switch without first adjusting the tire 

inflation pressure to the specified level. 

Otherwise, the tire pressure warning 

light may not come on even if the tire 

inflation pressure is low, or it may come 

on when the tire inflation pressure is 

actually normal.

Registering ID codes

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6-3. Do-it-yourself maintenance

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Make sure to initialize the tire pressure 

warning system after registering the ID 

codes. If the system is initialized before 

registering the ID codes, the initialized 

values will be invalid.

As the tires will be warm when registra-

tion is completed, make sure to allow the 

tires to cool before performing initializa-

tion.

Canceling ID code registration

To cancel ID code registration after it has 

been started, turn the engine switch off 

before driving the vehicle.

If the vehicle is driven after ID code regis-

tration is started, to cancel registration, 

perform the ID code registration start 

procedure again and turn the engine 

switch off before driving.

If ID code registration has been canceled, 

the tire pressure warning light will blink 

for approximately 1 minute when the 

engine switch is turned to IGNITION 

ON mode and then illuminate. The tire 

pressure warning system will be opera-

tional when the tire pressure warning 

light turns off.

If the warning light does not turn off even 

after several minutes have elapsed, ID 

code registration may not have been can-

celled correctly. To cancel registration, 

perform the ID code registration start 

procedure again and then turn the engine 

switch off before driving.

If ID codes are not registered properly

In the following situations, ID code regis-

tration may take longer than usual to be 

completed or may not be possible. (Usu-

ally, the vehicle will need to be driven for 

approximately 10 to 30 minutes to com-

plete ID code registration.)

If ID code registration is not complete 

after driving for approximately 30 min-

utes, continue driving for a while.

• If the vehicle is driven on an unpaved 

road, it may take longer than normal to 

complete registration.

• If the vehicle is backed up while perform-

ing registration, data collected during 

registration will be cleared, and it will take 

longer than normal to complete.

• If the vehicle is driven in heavy traffic or 

another situation where other vehicles 

are driven close by, it may take time for 

the system to recognize the tire pressure 

warning valve and transmitters of your 

vehicle over those of other vehicles.

• If  a  wheel  with  a  tire pressure warning 

valve and transmitter installed is inside or 

near the vehicle, registration of the ID 

codes for the installed wheels may not be 

possible.

If ID registration is not complete after driv-

ing for approximately 1 hour, park the vehi-

cle in a safe place for approximately 20 

minutes and then perform the ID code reg-

istration procedure again.

In the following situations, ID code regis-

tration will not be started or was not com-

pleted properly and the system will not 

operate properly. Perform the ID code 

registration procedure again.

• If, when attempting to start ID code regis-

tration, the tire pressure warning light 

does not blink slowly 3 times.

• If, when the vehicle has been driven for 

about 20 minutes after performing ID 

code registration, the tire pressure warn-

ing light blinks for approximately 1 minute 

and then illuminates.

If ID code registration cannot be com-

pleted after performing the above proce-

dure, contact your Lexus dealer.

304

6-3. Do-it-yourself maintenance

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

P.372)

Tire valve
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 drive train

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-

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-
cedure

A
B

305

6-3. Do-it-yourself maintenance

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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.

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.300)

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.)

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.

306

6-3. Do-it-yourself maintenance

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

When rotating, repairing or chang-
ing your tires, check that the wheel 
bolts are still tight after driving 621 
miles (1000 km).

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

Never use an inner tube in a leaking 

wheel which is designed for a tubeless 

tire.

Doing so may result in an accident, 

causing death or serious injury.

Use the correct wheel bolts for the 

wheels to be installed. For details, con-

tact your Lexus dealer.

Wheel bolts

Observe the following precautions to 

reduce the risk of death or serious injury:

Do not over tighten.

Never use oil or grease on the wheel 

bolts. Oil and grease may cause the 

wheel bolts to be excessively tight-

ened, leading to bolt or disc wheel 

damage. In addition, the oil or grease 

can cause the wheel bolts to loosen 

and the wheel may fall off, causing a 

serious accident. Remove any oil or 

grease from the wheel bolts.

If there are any cracks or deformations 

in the wheel bolts, or if the surface 

treatment becomes worn, have the 

wheel bolts replaced at your Lexus 

dealer. Failure to follow these precau-

tions could cause the wheel bolts to 

loosen and the tire to fall off, resulting 

in death or serious injury.

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

307

6-3. Do-it-yourself maintenance

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1

Turn the engine switch off.

2

Open the glove box. Lift up the side 
with the stay, disconnect the stay 
tabs and remove the partition by 
pulling horizontally.

3

Press the tabs and remove the filter 
cover.

4

Press the tabs and remove the filter 
case.

5

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.

Air conditioning filter

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

Removal method

308

6-3. Do-it-yourself maintenance

When an air conditioning odor comes out 

continuously, replace the air conditioning 

filter.

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.

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 

local laws.

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.

Electronic key battery

Replace the battery with a new one 
if it is depleted.
As the key may be damaged if the 
following procedure is not per-
formed properly, it is recom-
mended that key battery 
replacement be performed by your 
Lexus dealer.

Items to prepare

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6-3. Do-it-yourself maintenance

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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.

Insert a new battery with the “+” terminal 

facing up.

Replacing the battery

WARNING

Battery precautions

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

Do not swallow the battery. Doing so 

may cause chemical burns.

A coin battery or button battery is 

used in the electronic key. If a battery is 

swallowed, it may cause severe chemi-

cal burns in as little as 2 hours and may 

result in death or serious injury.

Keep away new and removed batteries 

from children.

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 your 

Lexus dealer.

If you accidentally swallow a battery or 

put a battery into a part of your body, 

get emergency medical attention 

immediately.

To prevent battery explosion or leak-

age of flammable liquid or gas

Replace the battery with a new battery 

of the same type. If a wrong type of 

battery is used, it may explode.

Do not expose batteries to extremely 

low pressure due to high altitude or 

extremely high temperatures.

Do not burn, break or cut a battery.

NOTICE

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.

310

6-3. Do-it-yourself maintenance

1

Turn the engine switch off.

2

Open the fuse box cover.

Engine compartment: type A fuse 
box

Push the tab in and lift the lid off.

Engine compartment: type B fuse 
box

Push the tab in and lift the lid off.

Driver’s side instrument panel

Remove the lid.

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 your Lexus dealer.

Type A

Normal fuse

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

A

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Blown fuse

Type B

Normal fuse
Blown fuse

Type C

Normal fuse
Blown fuse

Type D

Normal fuse
Blown fuse

After a fuse is replaced

If the lights do not turn on even after the 

fuse has been replaced, a bulb may need 

replacement.

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.

B

A

B

A

B

A

B

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.

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.

312

6-3. Do-it-yourself maintenance

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.

Remember the turning direction and the 

number of turns.

Single-beam headlights

Triple-beam headlights

2

Turn bolt B the same number of 
turns and in the same 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

Adjusting the headlight aim

A
B

 

 

 

 

 

 

 

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