Lexus LS500h (2022 year). Manual in english - page 26

 

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Lexus LS500h (2022 year). Manual in english - page 26

 

 

431

6-3. Do-it-yourself maintenance

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How to initialize the tire pressure 
warning system

1

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

The initialization procedure cannot be 

started 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 hybrid system.

4

Press 

 or 

 of the meter con-

trol switch to select 

.

5

Press 

 or 

 to select “Vehicle 

Settings” and then press 

.

6

Press 

 or 

 to select “TPWS” 

and then press 

.

7

Press 

 or 

 to select “Set 

Pressure”. Then press and hold 

 

until the tire pressure warning light 
blinks 3 times.

Then a message will be displayed on the 

multi-information display.
“---” will be displayed on the multi-informa-

tion display for the inflation pressure of 

each tire while initialization is being per-

formed.

8

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 may take longer than normal 

to complete if the vehicle speed cannot be 

maintained at approximately 25 mph (40 

km/h) or more. If initialization cannot be 

completed after driving for 1 hour or more, 

park the vehicle in a safe place, turn the 

power switch off and wait 20 minutes or 

more before performing the driving proce-

dure again. (

P.432)

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 the power switch is turned off during 

initialization, it is not necessary to restart 

the initialization procedure from the 

beginning as it will begin automatically 

when the power switch is turned back to 

ON mode.

If initialization has accidentally been 

started when it is not necessary, adjust 

the tire inflation pressure to the specified 

level when the tires are cold and then 

perform the initialization procedure 

again.

432

6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

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 

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.
The ID codes can be registered on 

 

of the multi-information display.

1

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

2

Press 

 or 

 of the meter con-

trol switch to select 

.

3

Press 

 or 

 to select “Vehicle 

Settings” and then press 

.

4

Press 

 or 

 to select “TPWS” 

and then press 

.

5

Press 

 or 

 to select “Change 

Wheel Set”. Then press and hold 

 until the tire pressure warning 

light blinks slowly 3 times.

Then a message will be displayed on the 

multi-information display.
When registration is being performed, the 

WARNING

When initializing the tire pressure 

warning system

Do not initialize the tire pressure warning 

system 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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tire pressure warning light will blink for 

approximately 1 minute then illuminate and 

“---” will be displayed for the inflation pres-

sure of each tire on the multi-information 

display.

6

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

Registration is complete when the tire 

pressure warning light turns off and the 

inflation pressure of each tire is displayed 

on the multi-information display.
Registration may take longer than normal 

to complete if the vehicle speed cannot be 

maintained at approximately 25 mph (40 

km/h) or more. If registration cannot be 

completed after driving for 1 hour or more, 

perform the registration procedure again 

from the beginning.  (

P.433)

After registering the ID codes, make sure 

to initialize the tire pressure warning sys-

tem. (

P.431)

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.

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 power 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 power 

switch off before driving.

If ID code registration has been canceled, 

the tire pressure warning light will blink 

for approximately 1 minute when the 

power switch is turned to ON mode and 

then illuminate. The tire pressure warning 

system will be operational 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 power 

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.

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6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

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.

Stop the vehicle in a safe place on a 
hard, flat surface.

Set the parking brake.

Shift the shift position to P.

Disabling the height control. 
(

P.335)

Stop the hybrid system.

Jack and 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.

Wheel nut wrench

Jack

Jack handle

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 
your Lexus dealer.

Before jacking up the vehicle

WARNING

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.

Do not use the tire jack for any pur-

pose other than replacing tires or 

installing and removing tire chains.

Do not use other tire jacks for replac-

ing tires on this vehicle.

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1

Chock the tires.

2

Slightly loosen the wheel nuts (one 
turn).

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 

WARNING

Put the jack properly in its jack point.

Do not put any part of your body under 

the vehicle while it is supported by the 

jack.

Do not start the hybrid system or drive 

the vehicle while the vehicle is sup-

ported by the jack.

Do not raise the vehicle while some-

one is inside.

When raising the vehicle, do not put an 

object on or under the jack.

Do not raise the vehicle to a height 

greater than that required to replace 

the tire.

Use a jack stand if it is necessary to get 

under the vehicle.

Make sure to disable all functions of 

the vehicle height control of the elec-

tronically modulated air suspension 

and then stopping the hybrid system. 

(

P.335)

When lowering the vehicle, make sure 

that there is no-one near the vehicle. If 

there are people nearby, warn them 

vocally before lowering.

Replacing a flat tire for vehicles with 

power trunk opener and closer

In cases such as when replacing tires, 

make sure to turn off the trunk opener 

main switch (

P.115). Failure to do so 

may cause the trunk lid to operate unin-

tentionally if the power trunk opener and 

closer switch is accidentally touched, 

resulting in hands and fingers being 

caught and injured.

Removing a tire

Tire

Wheel chock posi-

tions

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

A

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6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

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 

into contact with the disc wheel.

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

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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 ft•lbf (140 N•m, 14.3 kgf•m)

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.

A

B

Have the wheel nuts tightened with a 

torque wrench to 103 ft•lbf (140 N•m, 

14.3 kgf•m) as 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.

NOTICE

Repairing or replacing tires, wheels, 

tire pressure warning valves, trans-

mitters and tire valve caps

P.430

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6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

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

P.500)

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

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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, the tire 

pressure warning valves and transmitters 

must be installed. (

P.430)

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.

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LEXUS LS500h Owner's Manual

Use only Lexus wheel nuts and 
wheel nut 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).

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 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

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1

Turn the power switch off.

2

Open the glove box. Remove the 
partition. (

P.380)

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.

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 

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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LEXUS LS500h Owner's Manual

filter.

Rear air conditioning filter (if equipped)

If it is necessary to replace the filter, contact 

your Lexus dealer.

Remove the dust and clogs from the air 
intake vent with a vacuum cleaner, etc.

Make sure to only use a vacuum to suck 
out dust and clogs. Attempting to blow out 
dust and clogs using an airgun, etc. may 
push it into the air intake vent. (

P.444)

If dust and clogs cannot be completely 
removed with the air intake vent cover 
installed, remove the cover and clean 

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.

Cleaning the hybrid battery 
(traction battery) air intake 
vents and filter

To prevent the fuel economy from 
being affected, visually inspect the 
hybrid battery (traction battery) air 
intake vents periodically for dust 
and clogs. If it is dusty or clogged or 
if “Maintenance Required for Trac-
tion Battery Cooling Parts See 
Owner’s Manual” is displayed on 
the multi-information display, clean 
the air intake vent using the follow-
ing procedures:

Cleaning the air intake vents

If dust and clogs cannot be com-
pletely removed

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the filter.

1

Turn the power switch off.

2

Remove the air intake vent cover.

3

Remove the air intake vent filter.

4

Remove the dust and clogs from 
the filter using a vacuum cleaner, 
etc.

Make sure to also remove the dust and 

clogs from the inner side of the air intake 

vent cover.

5

Install the filter in its original posi-
tion, and then install the air intake 
vent filter.

Scheduled maintenance of the air 

intake vent is necessary when

In some situations such as when the vehicle 

is used frequently or in heavy traffic or dusty 

areas, the air intake vent may need to be 

cleaned more regularly. For details, refer to 

the “Warranty and Service Guide”, 

“Owner’s Manual Supplement” or “Sched-

uled Maintenance”.

Cleaning the air intake vent

Dust in the air intake vent may interfere 

with the cooling of the hybrid battery 

(traction battery). If charging/discharging 

of the hybrid battery (traction battery) 

becomes limited, the distance that the 

vehicle can be driven using the electric 

motor (traction motor) may be reduced 

and the fuel economy may be reduced. 

Inspect and clean the air intake vent peri-

odically.

Improper handling of the air intake vent 

cover and filter may result in damage to 

them. If you have any concerns about 

cleaning the filter, contact your Lexus 

dealer.

If “Maintenance Required for Traction 

Battery Cooling Parts See Owner’s 

Manual” is displayed on the multi-infor-

mation display

If this warning message is displayed on 

the multi-information display, remove the 

air intake vent cover and clean the filter. 

(

P.442)

After cleaning the air intake vent, start 

the hybrid system and check that the 

warning message is no longer displayed. 

After the hybrid system is started, it may 

be necessary to drive the vehicle up to 

approximately 20 minutes before the 

warning message disappears. If the warn-

ing message does not disappear after for 

approximately 20 minutes, have the vehi-

cle inspected by your Lexus dealer.

444

6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

WARNING

When cleaning the air intake vent

Do not use water or other liquids to 

clean the air intake vent. If water is 

applied to the hybrid battery (traction 

battery) or other components, a mal-

function or fire may occur.

Before cleaning the air intake vents, 

make sure to turn the power switch off 

to stop the hybrid system.

NOTICE

When cleaning the air intake vent

When cleaning the air intake vent, make 

sure to only use a vacuum to suck out 

dust and clogs. If a compressed air blow 

gun, etc. is used to blow out dust and 

clogs, the dust or clogs may be pushed 

into the air intake vent, which may affect 

the performance of the hybrid battery 

(traction battery) and cause a malfunc-

tion.

To prevent damage to the vehicle

Do not allow liquid or foreign matter to 

enter the air intake vent when the 

cover is removed.

Carefully handle the removed filter so 

that it will not be damaged. If the filter 

is damaged, have it replaced with a 

new filter by your Lexus dealer.

Make sure to reinstall the filter and 

cover to their original positions after 

cleaning.

Do not install anything to the air intake 

vent other than the exclusive filter for 

this vehicle or use the vehicle without 

the filter installed.

If “Maintenance Required for Trac-

tion Battery Cooling Parts See 

Owner’s Manual” is dispplayed on 

the multi-information display

If the vehicle is continuously driven with 

the warning message (indicating that 

charging/discharging of the hybrid bat-

tery (traction battery) may become lim-

ited) displayed, the hybrid battery 

(traction battery) may malfunction. If the 

warning message is displayed, clean the 

air intake vent immediately.

445

6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

6

Mai
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e a

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 c

are

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.

1

Take out the mechanical key.

2

Remove the cover.

To prevent damage to the key, cover the tip 

of the flathead screwdriver with a tape.

3

Remove the depleted battery.

Insert a new battery with the “+” terminal 

facing up.

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

Replacing the battery

446

6-3. Do-it-yourself maintenance

LEXUS LS500h Owner's Manual

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

When replacing the battery

Use a flathead screwdriver of appropri-

ate 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.

 

 

 

 

 

 

 

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