LEXUS NX 300 (2019 year). Manual — part 19

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6-1. Maintenance and care

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NOTICE

■

To prevent paint deterioration and

corrosion on the body and compo-

nents (aluminum wheels, etc.)

●

Wash the vehicle immediately in the

following cases:

• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the

paint surface

• If dead insects, insect droppings or

bird droppings are present on the

paint surface

• After driving in an area contaminated

with soot, oily smoke, mine dust, iron

powder or chemical substances

• If the vehicle becomes heavily soiled

with dust or mud

• If liquids such as benzene and gasoline

are spilled on the paint surface

●

If the paint is chipped or scratched,

have it repaired immediately.

●

To prevent the wheels from corroding,

remove any dirt and store in a place

with low humidity when storing the

wheels.

■

Cleaning the exterior lights

●

Wash carefully. Do not use organic

substances or scrub with a hard brush.

This may damage the surfaces of the

lights.

●

Do not apply wax to the surfaces of the

lights.

Wax may cause damage to the lenses.

■

To prevent damage to the windshield

wiper arms

When lifting the wiper arms away from

the windshield, pull the driver side wiper

arm upward first, and repeat for the pas-

senger side. When returning the wipers

to their original position, do so from the

passenger side first.

■

When using an automatic car wash

(vehicles with rain-sensing windshield

wipers)

Set the wiper switch to the off position.

If the wiper switch is in “AUTO”, the wip-

ers may operate and the wiper blades

may be damaged.

■

When using a high pressure car wash

●

When washing the vehicle, do not let

water of the high pressure washer hit

directly or the vicinity of the camera.

Due to the shock from the high pres-

sure water, it is possible the device may

not operate as normal.

●

Do not bring the nozzle tip close to

boots (rubber or resin manufactured

cover), connectors or the following

parts. The parts may be damaged if

they come into contact with high-pres-

sure water.

• Traction related parts
• Steering parts
• Suspension parts
• Brake parts

■

When raising the windshield wiper

arms

Make sure to hold the hook parts

of

the wiper arms to raise them.
Do not hold only the wiper blades when
raising them, or it may cause deformation
of the wiper blades.

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6-1. Maintenance and care

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 Remove dirt and dust using a vac-

uum cleaner. Wipe dirty surfaces
with a cloth dampened with luke-
warm water.

 If dirt cannot be removed, wipe it off

with a soft cloth dampened with
neutral detergent diluted to approx-
imately 1%. Wring out any excess
water from the cloth and thoroughly
wipe off remaining traces of deter-
gent and water.

■

Shampooing the carpets

There are several commercial foaming-type

cleaners available. Use a sponge or brush

to apply the foam. Rub in overlapping cir-

cles. Do not use water. Wipe dirty surfaces

and let them dry. Excellent results are

obtained by keeping the carpet as dry as

possible.

■

Handling the seat belts

Clean with mild soap and lukewarm water

using a cloth or sponge. Also check the

belts periodically for excessive wear, fraying

or cuts.

■

Front side windows with UV protective

coating (vehicles with UV protective

coating)

The front side windows have UV protective

coating. To prevent any damage to the UV

protective coating, observe the following:

●

If the windows are dirty, gently wipe them

with a cloth soaked in water or lukewarm

water as soon as possible.

●

If the windows are very dirty, do not open

and close them repeatedly.

Cleaning and protecting the
vehicle interior

Perform cleaning in a manner
appropriate to each component
and its material.

Protecting the vehicle interior

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in the vehi-

cle.

Doing so may cause electrical compo-

nents, etc. to malfunction or catch fire.

●

Do not get any of the SRS components

or wiring in the vehicle interior wet.

(

P.30)

An electrical malfunction may cause

the airbags to deploy or not function

properly, resulting in death or serious

injury.

■

Cleaning the interior (especially

instrument panel)

Do not use polish wax or polish cleaner.

The instrument panel may reflect off the

windshield, obstructing the driver’s view

and leading to an accident, resulting in

death or serious injury.

NOTICE

■

Cleaning detergents

●

Do not use the following types of

detergent, as they may discolor the

vehicle interior or cause streaks or

damage to painted surfaces:

• Non-seat portions: Organic sub-

stances such as benzene or gasoline,

alkaline or acidic solutions, dye, and

bleach

• Seats: Alkaline or acidic solutions,

such as thinner, benzene, and alcohol

●

Do not use polish wax or polish

cleaner. The instrument panel’s or

other interior part’s painted surface

may be damaged.

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6-1. Maintenance and care

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 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

■

Preventing damage to leather sur-

faces

Observe the following precautions to

avoid damage to and deterioration of

leather surfaces:

●

Remove any dust or dirt from leather

surfaces immediately.

●

Do not expose the vehicle to direct

sunlight for extended periods of time.

Park the vehicle in the shade, espe-

cially during summer.

●

Do not place items made of vinyl, plas-

tic, or containing wax on the uphol-

stery, as they may stick to the leather

surface if the vehicle interior heats up

significantly.

■

Water on the floor

Do not wash the vehicle floor with water.

Vehicle systems such as the audio system

may be damaged if water comes into

contact with electrical components such

as the audio system above or under the

floor of the vehicle. Water may also

cause the body to rust.

■

When cleaning the inside of the wind-

shield (vehicles with Lexus Safety

System+)

Do not allow glass cleaner to contact the

lens. Also, do not touch the lens.

(

P.184)

■

Cleaning the inside of the rear win-

dow

●

Do not use glass cleaner to clean the

rear window, as this may cause dam-

age to the rear window defogger

heater wires or antenna. Use a cloth

dampened with lukewarm water to

gently wipe the window clean. Wipe

the window in strokes running parallel

to the heater wires or antenna.

●

Be careful not to scratch or damage

the heater wires or antenna.

■

Cleaning the front side windows

Do not use any compound or abrasive

product (e.g., glass cleaner, detergent,

wax) to clean the windows. It may dam-

age the coating.

Cleaning the leather areas

Cleaning the synthetic leather
areas

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6-2.Maintenance

■

Repair and replacement

It is recommended that genuine Lexus parts

be used for repairs to ensure performance

of each system. If non-Lexus parts are used

in replacement or if a repair shop other than

a Lexus dealer performs repairs, confirm

the warranty coverage.

■

Allow inspection and repairs to be per-

formed by a Lexus dealer

●

Lexus technicians are well-trained spe-

cialists and are kept up to date with the

latest service information. They are well

informed about the operation of all sys-

tems on your vehicle.

●

Keep a copy of the repair order. It proves

that the maintenance that has been per-

formed is under warranty coverage. If any

problem should arise while your vehicle is

under warranty, your Lexus dealer will

promptly take care of it.

General maintenance should be per-
formed on a daily basis. This can be
done by yourself or by a Lexus dealer.

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

For details about maintenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.

■

Resetting the message indicating main-

tenance is required (U.S.A. only)

After the required maintenance is pre-

formed according to the maintenance

schedule, please reset the message.

To reset the message, follow the procedures

described below:

1

Press

or

of the meter control

switches and select

.

Maintenance requirements

To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. It is the
owner’s responsibility to perform
regular checks. Lexus recommends
the following maintenance:

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

●

Engine exhaust, some of its constitu-

ents, and a wide variety of automobile

components contain or emit chemicals

known to the State of California to

cause cancer and birth defects and

other reproductive harm. Work in a

well ventilated area.

●

Oils, fuels and fluids contained in vehi-

cles as well as waste produced by

component wear contain or emit

chemicals known to the State of Cali-

fornia to cause cancer and birth

defects or other reproductive harm.

Avoid exposure and wash any affected

area immediately.

●

Battery posts, terminals and related

accessories contain lead and lead

compounds which are known to cause

brain damage. Wash your hands after

handling. (

P.317)

General maintenance

Scheduled maintenance

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6-2. Maintenance

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2

Press

or

of the meter control

switches, select the “Vehicle Settings”
and then press

.

3

Press

or

of the meter control

switches, select the “Scheduled Mainte-
nance” and then press and hold the

.

4

Select the “Yes” and push

.

“The Data Has Been Reset” is displayed
on the multi-information display.

You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage.

The use of Lexus repair manuals is recom-
mended.
For details about warranty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.

Do-it-yourself maintenance

General maintenance

Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice should be brought to
the attention of your Lexus dealer
or qualified service shop for advice.

WARNING

■

If the engine is running

Turn the engine off and ensure that there

is adequate ventilation before perform-

ing maintenance checks.

Engine compartment

Items

Check points

Battery

Check the connections.
(

P.317)

Brake fluid

Is the brake fluid at the
correct level? (

P.317)

Engine/inter-
cooler coolant

Is the engine/intercooler
coolant at the correct
level? (

P.315)

Engine oil

Is the engine oil at the
correct level? (

P.313)

Exhaust system

There should not be any
fumes or strange
sounds.

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Radiator/con-
denser

The radiator and con-
denser should be free
from foreign objects.
(

P.316)

Washer fluid

Is there sufficient washer
fluid? (

P.319)

Vehicle interior

Items

Check points

Accelerator
pedal

The accelerator pedal
should move smoothly
(without uneven pedal
effort or catching).

Automatic
transmission
“Park” mecha-
nism

When parked on a slope
and the shift lever is in P,
is the vehicle securely
stopped?

Brake pedal

• Does the brake pedal

move smoothly?

• Does the brake pedal

have appropriate
clearance from the
floor?

• Does the brake pedal

have the correct
amount of free play?

Items

Check points

Brakes

• The vehicle should not

pull to one side when
the brakes are
applied.

• The brakes should

work effectively.

• The brake pedal

should not feel
spongy.

• The brake pedal

should not get too
close to the floor
when the brakes are
applied.

Head restraints

Do the head restraints
move smoothly and lock
securely?

Indicators/
buzzers

Do the indicators and
buzzers function prop-
erly?

Lights

Do all the lights come
on?

Parking brake

• Does the parking

brake switch operate
normally?

• When parked on a

slope and the parking
brake is on, is the vehi-
cle securely stopped?

Seat belts

• Do the seat belts

operate smoothly?

• The seat belts should

not be damaged.

Items

Check points

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Seats

Do the seat controls
operate properly?

Steering wheel

• Does the steering

wheel rotate
smoothly?

• Does the steering

wheel have the cor-
rect amount of free
play?

• There should not be

any strange sounds
coming from the
steering wheel.

Vehicle exterior

Items

Check points

Doors

Do the doors operate
smoothly?

Engine hood

Does the engine hood
lock system work prop-
erly?

Fluid leaks

There should not be any
signs of fluid leakage
after the vehicle has
been parked.

Items

Check points

Tires

• Is the tire inflation

pressure correct?

• The tires should not be

damaged or exces-
sively worn.

• Have the tires been

rotated according to
the maintenance
schedule?

• The wheel nuts should

not be loose.

Windshield wip-
ers/rear win-
dow wiper

• The wiper blades

should not show any
signs of cracking,
splitting, wear, con-
tamination or defor-
mation.

• The wiper blades

should clear the wind-
shield/rear window
without streaking or
skipping.

Items

Check points

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The OBD system determines that a
problem exists somewhere in the emis-
sion control system. Your vehicle may
not pass the I/M test and may need to
be repaired. Contact your Lexus
dealer to service the vehicle.

 When the battery is disconnected

or discharged
Readiness codes that are set during
ordinary driving are erased.
Also, depending on your driving
habits, the readiness codes may not
be completely set.

 When the fuel tank cap is loose

The malfunction indicator lamp
comes on indicating a temporary
malfunction and your vehicle may
not pass the I/M test.

The error code in the OBD system will
not be cleared unless the vehicle is
driven 40 or more times.

Contact your Lexus dealer to prepare
the vehicle for re-testing.

Emission inspection and
maintenance (I/M) pro-
grams

Some states have vehicle emission
inspection programs which include
OBD (On Board Diagnostics)
checks. The OBD system monitors
the operation of the emission con-
trol system.

If the malfunction indicator lamp
comes on

Your vehicle may not pass the I/
M test in the following situations:

When the malfunction indicator
lamp still remains on after sev-
eral driving trips

If your vehicle does not pass the
I/M test

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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 condi-
tion (

P.317)

• Warm water
• Baking soda
• Grease
• Conventional wrench

(for terminal clamp
bolts)

Brake fluid level
(

P.317)

• FMVSS No.116 DOT

3 or SAE J1703;
FMVSS No.116 DOT
4 or SAE J1704 brake
fluid

• Rag or paper towel
• Funnel (used only for

adding brake fluid)

Engine/inter-
cooler coolant
level (

P.315)

• “Toyota Super Long

Life Coolant” or a sim-
ilar high quality eth-
ylene glycol-based
non-silicate, non-
amine, non-nitrite and
non-borate coolant
with long-life hybrid
organic acid technol-
ogy
For the U.S.A.:
“Toyota Super Long
Life Coolant” is pre-
mixed with 50% cool-
ant and 50% deion-
ized water.
For Canada:
“Toyota Super Long
Life Coolant” is pre-
mixed with 55% cool-
ant and 45% deion-
ized water.

• Funnel (used only for

adding coolant)

Engine oil level
(

P.313)

• “Toyota Genuine

Motor Oil” or equiva-
lent

• Rag or paper towel
• Funnel (used only for

adding engine oil)

Fuses
(

P.334)

Fuse with same amper-
age rating as original

Light bulbs
(

P.337)

Bulb with same number
and wattage rating as
original

Headlight aim

Phillips-head screw-
driver

Radiator and
condenser
(

P.316)

—

Items

Parts and tools

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Tire inflation
pressure
(

P.328)

• Tire pressure gauge
• Compressed air

source

Washer fluid
(

P.319)

• Water or washer fluid

containing antifreeze
(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.

■

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 cautions when working

on the battery. It contains poisonous

and corrosive sulfuric acid.

Items

Parts and tools

■

When working near the electric cool-

ing fans or radiator grille

Be sure the engine switch is off.

With the engine switch in IGNITION

ON mode, the electric cooling fans may

automatically start to run if the air condi-

tioning is on and/or the coolant tempera-

ture is high. (

P.316)

■

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.

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1

Pull the hood lock release lever.

The hood will pop up slightly.

2

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

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■

Rear

1

Remove the bolt and then
remove the cover .

2

Raising your vehicle with a floor
jack.

A

B

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Fuse box (

P.334)

Engine coolant reservoir (

P.315)

Engine oil filler cap (

P.313)

Engine oil level dipstick (

P.313)

Intercooler coolant reservoir (

P.315)

Battery (

P.317)

Brake fluid reservoir (

P.317)

Radiator (

P.316)

Condenser (

P.316)

Electric cooling fans
Washer fluid tank (

P.319)

Engine compartment

Components

A
B
C
D

E
F

G

H

I

J

K

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■

Removing the engine compart-
ment cover

■

Installing the clips

1

Insert

2

Press

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

■

Checking the engine oil

1

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.

2

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

3

Wipe the dipstick clean.

4

Reinsert the dipstick fully with its
protruding areas ( in the illustra-
tion) pointing towards engine.

Engine compartment cover

NOTICE

■

After installing an engine compart-

ment cover

Make sure that the cover is securely

installed in its original position.

Checking and adding the engine
oil

A

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5

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

Low
Normal
Excessive
Measuring side

6

Wipe the dipstick and reinsert it
fully.

■

Checking the oil type and prepar-
ing the items needed

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

P.384

 Oil quantity (Low

 Full)

1.6 qt. (1.5 L, 1.3 Imp.qt.)

 Items

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.

1

Remove the oil filler cap by turning
it counterclockwise.

2

Add engine oil slowly, checking the
dipstick.

3

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:

1

Press

or

of the meter control

switches and select

.

A
B
C
D

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2

Press

or

of the meter control

switches, select the “Vehicle Settings”
and then press

.

3

Press

or

of the meter control

switches, select the “Oil Maintenance”
and then press and hold the

.

4

Select the “Yes” and push

.

“The Data Has Been Reset” is displayed
on the multi-information display.

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

■

Engine coolant reservoir

Reservoir cap
“FULL” line
“LOW” line

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

P.377)

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 your Lexus dealer, ser-

vice station or auto parts store for

information concerning recycling or

disposal.

●

Do not leave used engine oil within the

reach of children.

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 engine coolant

A
B
C