Content .. 21 22 23 24 ..

Lexus RX (2022 year). Manual in english - page 23

386

6-3. Do-it-yourself maintenance

■

When initialization of the tire pressure

warning system has failed

Initialization may take longer to complete if

the vehicle is driven on an unpaved road.

When performing initialization, drive on a

paved road if possible. Depending on the

driving environment and condition of the

tires, initialization will be completed in

approximately 10 to 30 minutes. If initializa-

tion is not complete after driving approxi-

mately 10 to 30 minutes, continue driving

for a while.
If the inflation pressure of each tire is not

displayed after driving for approximately 1

hour, perform the following procedure.

●

Park the vehicle in a safe place for

approximately 20 minutes. Then drive

straight (with occasional left and right

turns) at approximately 40 km/h (25

mph) or more for approximately 10 to 30

minutes.

However, in the following situations, the tire

inflation pressure will not be recorded and

the system will not operate properly. Per-

form initialization again.

●

When operating the tire pressure warn-

ing reset switch, the tire pressure warning

light does not blink 3 times.

●

After performing initialization, the tire

pressure warning light blinks for 1 minute

then stays on while driving.

If the inflation pressure of each tire is still not

displayed, have the vehicle inspected by

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer.

The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
Have the ID code registered by any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

WARNING

■

When initializing the tire pressure

warning system

Do not initializing tire inflation pressure

without first adjusting the tire inflation

pressure to the specified level. Other-

wise, the tire pressure warning light may

not come on even if the tire inflation pres-

sure is low, or it may come on when the

tire inflation pressure is actually normal.

Registering ID codes

387

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

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 any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer.

■

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 1.5 km or 1 mile, 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.

●

Passengers and luggage weight should

be placed so that the vehicle is balanced.

Tire inflation pressure

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

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.

388

6-3. Do-it-yourself maintenance

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

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

: Conventionally referred to as offset.

Lexus does not recommend using the
following:



Wheels of different sizes or types



Used wheels



Bent wheels that have been straight-
ened

■

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.384)



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

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

loss of handling control.

●

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 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 relia-

ble repairer.

●

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

389

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care



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.

Turn the engine switch off.

Open the glove box. Slide off the
damper.

Push in the glove box on the vehi-
cle’s outer side to disconnect the
claws. Then pull out the glove box
and disconnect the lower claws.

Air conditioning filter

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

Removing the air conditioning
filter

390

6-3. Do-it-yourself maintenance

Remove the cover.

Unlock the filter cover ( ), pull the
filter cover out of the claws ( ),
and remove the filter cover.

Remove the filter case.

There may be foreign objects on top of the

air conditioning filter.

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 “Lexus Service Booklet”

or “Lexus Warranty Booklet”.)

■

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.

391

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

Change the rest position of the
windshield wipers to the service
position using the wiper lever and
then lift a windshield wiper.
(



P.205)

While pressing and holding the
wiper blade lock release button,
remove the wiper blade.

When performing this operation, make

sure to hold the hook portion of the wiper

arm securely.

Hook portion

While disengaging the cap lock,
using a tool such as a flathead
screwdriver if necessary, remove
the wiper insert.

Hold the cap on the end of the wiper insert

when removing the wiper insert. (The cap

is integrated into the wiper insert.)
If using a screwdriver, make sure to wrap its

NOTICE

■

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.

Windshield wiper inserts

Replacing a windshield wiper
insert

392

6-3. Do-it-yourself maintenance

tip with tape to protect the wiper blade.

Cap lock

Install a new wiper insert.

Make sure to push the wiper insert firmly

until the cap lock is engaged.
After installation, check that the cap lock is

locked securely.

Install the wiper blade to the wiper
arm.

Make sure to push the wiper blade until it is

locked.
When performing this operation, make

sure to hold the hook portion of the wiper

arm securely.
After installation, check that the wiper

blade is locked securely.

After replacing the wiper inserts,
place the windshield wipers on the
windshield and lower them to the
retracted position. (



P.206)

Do not drive the vehicle with the wind-

shield wipers lifted.

■

Replacing the rear wiper insert

Have the rear wiper insert replaced by any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

■

Handling of the windshield wiper blades

and inserts

Improper handling of the windshield wiper

blades and inserts may cause them to be

damaged. If it is difficult to follow the wiper

blade and insert replacement procedure

precisely, contact any authorized Lexus

retailer or Lexus authorized repairer, or any

reliable repairer.

393

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart entry & start system and wire-

less 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 your Lexus dealer. Your Lexus dealer can

replace the battery for you.



Flathead screwdriver



Lithium battery CR2032

■

Use a CR2032 lithium battery

●

Batteries can be purchased at any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer, 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.

Take out the mechanical key.

Remove the cover.

To prevent damage to the key, cover the tip

of the flathead screwdriver with a tape.

Remove the battery cover.

Remove the depleted battery.

Insert a new battery with the “+” terminal

Electronic key battery

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

You will need the following items:

Replacing the battery

394

6-3. Do-it-yourself maintenance

facing up.

WARNING

■

Battery precautions

Observe the following precautions.

Failure to do so may result in death or

serious 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 any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

●

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.

■

Certification for the smart entry &

start system

CAUTION

RISK OF EXPLOSION IF BATTERY IS

REPLACED BY AN INCORRECT

TYPE.

DISPOSE OF USED BATTERIES

ACCORDING TO THE INSTRUC-

TIONS

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.

395

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

Turn the engine switch off.

Open the fuse box cover.



Engine compartment

Push the tab in and lift the lid off.



Left side instrument panel

Remove the lid.

Remove the fuse with the pullout
tool.

Only some fuses can be removed
using the pullout tool.

Check if the fuse is blown.

Normal fuse
Blown fuse

Replace the blown fuse with a new fuse of
an appropriate amperage rating. The
amperage rating can be found on the fuse
box lid.
Many types of fuse are used on this vehicle.
This illustration shows a common type of
fuse used on this vehicle.

■

After a fuse is replaced

●

If the lights do not turn on even after the

fuse has been replaced, a bulb may need

replacement. (



P.396)

●

If the replaced fuse blows again, have the

vehicle inspected by any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

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
B

396

6-3. Do-it-yourself maintenance

■

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.

Check the wattage of the light bulb to
be replaced. (



P.478)



P.118

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 any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer as soon

as possible.

Light bulbs

You may replace the following bulbs
by yourself. The difficulty level of
replacement varies depending on
the bulb. 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.

Preparing for light bulb replace-
ment

Canceling the power back door
system

397

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

Front

Front turn signal light (vehicles with
single-beam headlights)

■

Rear

Back-up light (bulb type)
Rear turn signal light (bulb type)

■

Replacing the following bulbs

If any of the lights listed below has
burnt out, have it replaced by any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.



Headlight



Front position lights and daytime
running lights



Front turn signal lights (vehicles
without single-beam headlights)



Front fog lights (if equipped)



Cornering lights (if equipped)



Side turn signal lights



Stop/tail lights



Back-up lights (LED type)

Bulb locations

A
B

398

6-3. Do-it-yourself maintenance



Rear turn signal light (LED type)



Rear fog lights



Rear side marker lights



High mounted stoplight



License plate lights



Outer foot lights

■

LED Lights

The lights other than the front turn signal

lights (vehicles with single-beam head-

lights), rear turn signal lights (bulb type) and

back-up lights (bulb type) each consist of a

number of LEDs. If any of the LEDs has

burned out, take your vehicle to any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer to have the

light replaced.

■

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:

●

Large drops of water have built up on the

inside of the lens.

●

Water has built up inside the headlight.

■

When replacing light bulbs



P.396

■

Front turn signal lights (vehicles
with single-beam headlights)

Removing the engine compartment
cover.

Push the center of the clip.

Remove the clip.

Replacing light bulbs

399

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

For the right side only: Remove the
bolt, and move the washer fluid
inlet.

Turn the bulb base
counterclockwise and remove it.

Remove the light bulb.

Install a new light bulb and then
install the bulb base to the light unit
by inserting it and turning it clock-
wise.

After installing the bulb base, wiggle it

lightly to make sure it is securely installed

and turn the lights on to visually check that

there is no light leaking from between the

bulb base and light unit.

400

6-3. Do-it-yourself maintenance

For the right side only: Fix the
washer fluid inlet.

Align the tab position and install
washer fluid inlet.

Fasten the bolt.

Install the engine compartment
cover.

Push up center portion

Insert

Press

■

Rear turn signal lights (bulb type)

Open the back door and apply pro-
tective tape to the vehicle body
around the taillight.

Use masking tape, etc. Do not use duct

tape, as it may leave residue or damage the

paint when removed.

401

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

Using a flathead screwdriver,
remove the cover.

To prevent scratching the vehicle, wrap the

tip of the flathead screwdriver with a cloth,

etc.

Remove the 2 screws.

Remove the taillight unit.

Attach 2 long pieces of masking
tape to the taillight unit and fold the
excess in half.

Hold the folded portion and pull it
toward the rear of the vehicle to
remove the light unit.

Turn the bulb base
counterclockwise and remove it.

Content .. 21 22 23 24 ..