Content .. 20 21 22 23 ..

Lexus RX L (2022 year). Manual in english - page 22

463

6-1. Maintenance and care

Ma
inte
na

e and care



Remove dirt and dust using a vac-
uum cleaner.



Wipe off any excess dirt and dust
with a soft cloth dampened with
diluted detergent.

Use a diluted water solution of approxi-
mately 5% neutral wool detergent.



Wring out any excess water from
the cloth and thoroughly wipe off all
remaining traces of detergent.



Wipe the surface with a dry, soft
cloth to remove any remaining
moisture. Allow the leather to dry in
a shaded and ventilated area.

■

Caring for leather areas

Lexus recommends cleaning the interior of

the vehicle at least twice a year to maintain

the quality of the vehicle’s interior.



Remove dirt and dust using a vac-
uum cleaner.



Wipe it off with a soft cloth damp-
ened with neutral detergent diluted
to approximately 1%.



Wring out any excess water from
the cloth and thoroughly wipe off
remaining traces of detergent and
water.

NOTICE

●

Be careful not to scratch or damage

the heater wires or antenna.

Cleaning the leather areas

Cleaning the synthetic leather
areas

464

6-2. Maintenance

6-2.Maintenance

■

Where to go for maintenance service?

In order to maintain your vehicle in the best

possible condition, Lexus recommends that

maintenance service operations as well as

other inspections and repairs be carried out

by authorized Lexus retailers or Lexus

authorized repairers, or any reliable repair-

ers. For repairs and services covered by

your warranty, please visit an authorized

Lexus retailer or repairer, who will use gen-

uine Lexus parts in repairing any difficulties

you may encounter. There can also be

advantages in utilizing authorized Lexus

retailers or repairers for non-warranty

repairs and services, as members of the

Lexus network will be able to expertly assist

you with any difficulties you may encounter.
Your Lexus retailer or Lexus authorized

repairer, or any reliable repairer will per-

form all of the scheduled maintenance on

your vehicle reliably and economically due

to their experience with Lexus vehicles.

Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.

For full details of your maintenance sched-
ule, refer to the “Lexus Service Booklet” or
“Lexus Warranty Booklet”.

What about do-it-yourself mainte-
nance?

Many maintenance items are easy to do
yourself if you have a little mechanical abil-
ity and a few basic automotive tools.
Note, however, that some maintenance
tasks require special tools and skills. These
are best performed by qualified techni-
cians. Even if you’re an experienced
do-it-yourself mechanic, we recommend
that repairs and maintenance be con-
ducted by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer. Any authorized Lexus retailer or
repairer will keep a record of maintenance,
which could be useful should you ever
require Warranty Service. Should you
choose to select a qualified and equipped
professional other than an authorized
Lexus repairer to service or maintain your
vehicle, we recommend that you request
that a record of maintenance be kept.

■

Does your vehicle need repairs?

Be on the alert for changes in performance

and sounds, and visual tip-offs that indicate

service is needed. Some important clues

are:

●

Engine missing, stumbling or pinging

Maintenance requirements

To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. Lexus
recommends the following mainte-
nance:

WARNING

■

If your vehicle is not properly main-

tained

Improper maintenance could result in

serious damage to the vehicle and possi-

ble death or serious injury.

■

Handling of the battery

Battery posts, terminals and related

accessories contain lead and lead com-

pounds which are known to cause brain

damage. Wash your hands after han-

dling. (



P.475)

Scheduled maintenance

Do-it-yourself maintenance

465

6-2. Maintenance

Ma
inte
na

e and care

●

Appreciable loss of power

●

Strange engine noises

●

A fluid leak under the vehicle (However,

water dripping from the air conditioning

system after use is normal.)

●

Change in exhaust sound (This may indi-

cate a dangerous carbon monoxide leak.

Drive with the windows open and have

the exhaust system checked immedi-

ately.)

●

Flat-looking tires, excessive tire squeal

when cornering, uneven tire wear

●

Vehicle pulls to one side when driven

straight on a level road

●

Strange noises related to suspension

movement

●

Loss of brake effectiveness, spongy feel-

ing brake pedal, pedal almost touches the

floor, vehicle pulls to one side when brak-

ing

●

Engine coolant temperature continually

higher than normal (



P.87)

If you notice any of these clues, take your

vehicle to any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer as soon as possible. Your vehicle

may need adjustment or repair.

466

6-3. Do-it-yourself maintenance

6-3.Do-it-yourself maintenance

Do-it-yourself service pre-
cautions

If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.

Maintenance

Items

Parts and tools

Battery condition
(



P.475)

• Warm water
• Baking soda
• Grease
• Conventional

wrench (for terminal
clamp bolts)

Engine/inter-
cooler coolant
level (



P.474)

• “Toyota Super Long

Life Coolant” or a
similar high quality
ethylene gly-
col-based non-sili-
cate, non-amine,
non-nitrite and
non-borate coolant
with long-life hybrid
organic acid tech-
nology
“Toyota Super Long
Life Coolant” is
pre-mixed with 50%
coolant and 50%
deionized water.

• Funnel (used only for

adding coolant)

Engine oil level
(



P.471)

• “Toyota Genuine

Motor Oil” or equiv-
alent

• Rag or paper towel
• Funnel (used only for

adding engine oil)

Fuses (



P.506)

• Fuse with same

amperage rating as
original

Light bulbs
(



P.508)

• Bulb with same num-

ber and wattage rat-
ing as original

• Flathead screw-

driver

• Wrench

Radiator, con-
denser and inter-
cooler radiator
(



P.475)



Tire inflation pres-
sure (



P.498)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(



P.477)

• Water or washer

fluid containing anti-
freeze (for winter
use)

• Funnel (used only for

adding water or
washer fluid)

WARNING

The engine compartment contains many

mechanisms and fluids that may move

suddenly, become hot, or become elec-

trically energized. To avoid death or seri-

ous injury, observe the following

precautions.

Items

Parts and tools

467

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

WARNING

■

When working on the engine com-

partment

●

Keep hands, clothing and tools away

from the moving fan and engine drive

belt.

●

Be careful not to touch the engine,

radiator, exhaust manifold, etc. right

after driving as they may be hot. Oil

and other fluids may also be hot.

●

Do not leave anything that may burn

easily, such as paper and rags, in the

engine compartment.

●

Do not smoke, cause sparks or expose

an open flame to fuel or the battery.

Fuel and battery fumes are flammable.

●

Be extremely cautious when working

on the battery. It contains poisonous

and corrosive sulfuric acid.

●

Take care because brake fluid can

harm your hands or eyes and damage

painted surfaces. If fluid gets on your

hands or in your eyes, flush the

affected area with clean water imme-

diately.

If you still experience discomfort, con-

sult a doctor.

■

When working near the electric cool-

ing fan or radiator grille

Be sure the engine switch is off.

With the engine switch in IGNITION

ON mode, the electric cooling fan may

automatically start to run if the air condi-

tioning is on and/or the coolant tempera-

ture is high. (



P.475)

■

Safety glasses

Wear safety glasses to prevent flying or

falling material, fluid spray, etc. from get-

ting in your eyes.

NOTICE

■

If you remove the air cleaner filter

Driving with the air cleaner filter

removed may cause excessive engine

wear due to dirt in the air.

■

If the fluid level is low or high

It is normal for the brake fluid level to go

down slightly as the brake pads wear or

when the fluid level in the accumulator is

high.

If the reservoir needs frequent refilling, it

may indicate a serious problem.

468

6-3. Do-it-yourself maintenance

Pull the hood lock release lever.

The hood will pop up slightly.

Pull up the auxiliary catch lever and
lift the hood.

■

Front

Hood

Opening the hood

WARNING

■

Pre-driving check

Check that the hood is fully closed and

locked.

If the hood is not locked properly, it may

open while the vehicle is in motion and

cause an accident, which may result in

death or serious injury.

Positioning a floor jack

When using a floor jack, follow the
instructions in the manual provided
with the jack and perform the oper-
ation safely.
When raising your vehicle with a
floor jack, position the jack cor-
rectly. Improper placement may
damage your vehicle or cause
injury.

Location of the jack point

469

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

Rear

470

6-3. Do-it-yourself maintenance



RX300

Intercooler coolant reservoir (



P.474)

Engine oil filler cap (



P.472)

Engine oil level dipstick (



P.471)

Engine coolant reservoir (



P.474)

Battery (



P.475)

Fuse box (



P.506)

Radiator (



P.475)

Condenser (



P.475)

Electric cooling fans
Intercooler radiator (



P.475)

Washer fluid tank (



P.477)

Engine compartment

Components

A
B
C
D

E
F

471

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care



RX350/RX350L

Washer fluid tank (



P.477)

Engine oil filler cap (



P.472)

Engine oil level dipstick (



P.471)

Engine coolant reservoir (



P.474)

Battery (



P.475)

Fuse box (



P.506)

Radiator (



P.475)

Condenser (



P.475)

Electric cooling fans

With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.

■

Checking the engine oil

Park the vehicle on level ground.
After warming up the engine and
turning off the engine, wait more
than 5 minutes for the oil to drain
back into the bottom of the engine.

Holding a rag under the end, pull
the dipstick out.

A
B
C
D

E
F

Checking and adding the engine
oil

472

6-3. Do-it-yourself maintenance



RX300



RX350/RX350L

Wipe the dipstick clean.

Reinsert the dipstick fully.

Holding a rag under the end, pull
the dipstick out and check the oil
level.



Flat dipstick

Low
Normal
Excessive



Non-flat dipstick

Low
Normal
Excessive

The shape of the dipstick may differ

depending on the type of vehicle or

engine.

Wipe the dipstick and reinsert it
fully.

■

Checking the oil type and prepar-
ing the item needed

Make sure to check the oil type and
prepare the items needed before add-
ing oil.



Engine oil selection



P.585



Oil quantity (Low



Full)

RX300: 1.5 L (1.6 qt., 1.3 Imp. qt.)
RX350/RX350L: 1.8 L (1.9 qt., 1.6
Imp. qt.)



Item
Clean funnel

■

Adding engine oil

If the oil level is below or near the low
level mark, add engine oil of the same
type as that already in the engine.

A
B
C

473

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care



RX300



RX350/RX350L

Remove the oil filler cap by turning
it counterclockwise.

Add engine oil slowly, checking the
dipstick.

Install the oil filler cap by turning it
clockwise.

■

Engine oil consumption

A certain amount of engine oil will be con-

sumed while driving. In the following situa-

tions, oil consumption may increase, and

engine oil may need to be refilled in

between oil maintenance intervals.

●

When the engine is new, for example

directly after purchasing the vehicle or

after replacing the engine

●

If low quality oil or oil of an inappropriate

viscosity is used

●

When driving at high engine speeds or

with a heavy load, when towing, or when

driving while accelerating or decelerat-

ing frequently

●

When leaving the engine idling for a long

time, or when driving frequently through

heavy traffic

■

After changing the engine oil

The engine oil maintenance data should be

reset. Perform the following procedures:

Press

of the meter control

switch to select

on the multi-infor-

mation display.

Press

of the meter control

switch, select the “Vehicle Settings”

then “Oil Maintenance”. (To confirm
setting, press

Select the “Yes” and press

A message is displayed on the

multi-information display.

WARNING

■

Used engine oil

●

Used engine oil contains potentially

harmful contaminants which may

cause skin disorders such as inflamma-

tion and skin cancer, so care should be

taken to avoid prolonged and

repeated contact. To remove used

engine oil from your skin, wash thor-

oughly with soap and water.

●

Dispose of used oil and filters only in a

safe and acceptable manner. Do not

dispose of used oil and filters in house-

hold trash, in sewers or onto the

ground.

Call any authorized Lexus retailer or

Lexus authorized repairer, or any relia-

ble repairer, service station or auto

parts store for information concerning

recycling or disposal.

●

Do not leave used engine oil within the

reach of children.

474

6-3. Do-it-yourself maintenance

■

Engine coolant reservoir

The coolant level is satisfactory if it is
between the “FULL” and “LOW” lines
on the reservoir when the engine is
cold.



RX300

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the “LOW” line,
add coolant up to the “FULL” line.
(



P.577)



RX350/RX350L

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the “LOW” line,
add coolant up to the “FULL” line.
(



P.577)

■

Intercooler coolant reservoir
(RX300)

The coolant level is satisfactory if it is
between the “FULL” and “LOW” lines
on the reservoir when the engine is
cold.

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the “LOW” line,
add coolant up to the “FULL” line.
(



P.577)

NOTICE

■

To prevent serious engine damage

Check the oil level on a regular basis.

■

When replacing the engine oil

●

Be careful not to spill engine oil on the

vehicle components.

●

Avoid overfilling, or the engine could

be damaged.

●

Check the oil level on the dipstick

every time you refill the vehicle.

●

Be sure the engine oil filler cap is prop-

erly tightened.

Checking the coolant

A
B
C

475

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

Coolant selection

Only use “Toyota Super Long Life Coolant”

or a similar high quality ethylene glycol

based non-silicate, non-amine, non-nitrite,

and non-borate coolant with long-life

hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mix-

ture of 50% coolant and 50% deionized

water. (Minimum temperature: -35°C

[-31°F])
For more details about coolant, contact any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

■

If the coolant level drops within a short

time of replenishing

Visually check the radiator, hoses, engine

coolant reservoir caps, drain cock and

water pump.

If you cannot find a leak, have any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer, test the

cap and check for leaks in the cooling sys-

tem.

Check the radiator, condenser and
intercooler radiator and clear away
any foreign objects.
If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, have your vehicle inspected by
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

Check the battery as follows.

■

Battery exterior

Make sure that the battery terminals
are not corroded and that there are no
loose connections, cracks, or loose
clamps.

WARNING

■

When the engine is hot

Do not remove the engine coolant reser-

voir cap, intercooler coolant reservoir

cap and radiator cap.
The cooling system may be under pres-

sure and may spray hot coolant if the cap

is removed, causing serious injuries, such

as burns.

NOTICE

■

When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct mixture

of water and antifreeze must be used to

provide proper lubrication, corrosion

protection and cooling. Be sure to read

the antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to pre-

vent it from damaging parts or paint.

Checking the radiator, con-
denser and intercooler radiator
(if equipped)

WARNING

■

When the engine is hot

Do not touch the radiator or condenser

as they may be hot and cause serious

injuries, such as burns.

Battery

476

6-3. Do-it-yourself maintenance

Terminals
Hold-down clamp

■

Checking battery fluid

Check that the level is between the
“UPPER LEVEL” and “LOWER
LEVEL” lines.

“UPPER LEVEL” line
“LOWER LEVEL” line

If the fluid level is at or below the “LOWER
LEVEL” line, add distilled water.

■

Adding distilled water

Remove the vent plug.

Add distilled water.

If the “UPPER LEVEL” line cannot be seen,

check the fluid level by looking directly at

the cell.

Put the vent plug back on and close
it securely.

■

Before recharging

When recharging, the battery produces

hydrogen gas which is flammable and

explosive. Therefore, observe the following

precautions before recharging:

●

If recharging with the battery installed on

the vehicle, be sure to disconnect the

ground cable.

●

Make sure the power switch on the

charger is off when connecting and dis-

connecting the charger cables to the bat-

tery.

■

After recharging/reconnecting the bat-

tery

●

The engine may not start. Follow the pro-

cedure below to initialize the system.

Shift the shift lever to P.

Open and close any of the doors.

Restart the engine.

●

Unlocking the doors using the smart

entry & start system may not be possible

immediately after reconnecting the bat-

tery. If this happens, use the wireless

remote control or the mechanical key to

lock/unlock the doors.

●

Start the engine with the engine switch in

ACCESSORY mode. The engine may

not start with the engine switch turned off.

A
B

477

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

However, the engine will operate nor-

mally from the second attempt.

●

The engine switch mode is recorded by

the vehicle. If the battery is disconnected

and reconnected, the vehicle will return

the engine switch mode to the status it

was in before the battery was discon-

nected. Make sure to turn off the engine

switch before disconnecting the battery.

Take extra care when connecting the bat-

tery if the engine switch mode prior to the

battery being disconnected is unknown.

If the system will not start even after multiple

attempts at all the methods above, contact

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer.

If any washer does not work or the
warning message appears on the
multi-information display, the washer

WARNING

■

Chemicals in the battery

Batteries contain poisonous and corro-

sive sulfuric acid and may produce

hydrogen gas which is flammable and

explosive. To reduce the risk of death or

serious injury, take the following precau-

tions while working on or near the bat-

tery:

●

Do not cause sparks by touching the

battery terminals with tools.

●

Do not smoke or light a match near the

battery.

●

Avoid contact with eyes, skin and

clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when

working near the battery.

●

Keep children away from the battery.

■

Where to safely charge the battery

Always charge the battery in an open

area. Do not charge the battery in a

garage or closed room where there is

insufficient ventilation.

■

Emergency measures regarding

electrolyte

●

If electrolyte gets in your eyes

Flush your eyes with clean water for at

least 15 minutes and get immediate

medical attention. If possible, continue

to apply water with a sponge or cloth

while traveling to the nearest medical

facility.

●

If electrolyte gets on your skin

Wash the affected area thoroughly. If

you feel pain or burning, get medical

attention immediately.

●

If electrolyte gets on your clothes

It can soak through clothing on to your

skin. Immediately take off the clothing

and follow the procedure above if nec-

essary.

●

If you accidentally swallow electrolyte

Drink a large quantity of water or milk.

Get emergency medical attention

immediately.

■

When there is insufficient battery

fluid

Do not use if there is insufficient fluid in

the battery. There is a possible danger

that the battery may explode.

NOTICE

■

When recharging the battery

Never recharge the battery while the

engine is running. Also, be sure all acces-

sories are turned off.

■

When adding distilled water

Avoid overfilling. Water spilled during

battery recharging may cause corrosion.

Washer fluid

478

6-3. Do-it-yourself maintenance

tank may be empty. Add washer fluid.

Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as excessive
wear on one side of the tread.
Check the spare tire condition and
pressure if not rotated.

New tread
Worn tread
Treadwear indicator

The location of treadwear indicators is
shown by a “TWI” or “

” mark, etc.,

molded into the sidewall of each tire.

WARNING

■

When adding washer fluid

Do not add washer fluid when the engine

is hot or running as washer fluid contains

alcohol and may catch fire if spilled on

the engine, etc.

NOTICE

■

Do not use any fluid other than

washer fluid

Do not use soapy water or engine anti-

freeze instead of washer fluid.
Doing so may cause streaking on the

vehicle’s painted surfaces, as well as

damaging the pump leading to problems

of the washer fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as neces-

sary.
Refer to the freezing temperatures listed

on the label of the washer fluid bottle.

Tires

Replace or rotate tires in accord-
ance with maintenance schedules
and treadwear.

Checking tires

A
B
C

Content .. 20 21 22 23 ..