LEXUS NX 300 (2019 year). Instruction - 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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 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

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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

315

6-3. Do-it-yourself maintenance

LEXUS NX300 Owners Manu-

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6

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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