2020 LEXUS NX300h Owners Manual

329
LEXUS NX300h Owners Manual_USA_M78530_en
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 330
Cleaning and protecting the vehi- cle interior ................................. 333
6-2. Maintenance Maintenance requirements .. 337
General maintenance ............. 338
Emission inspection and mainte- nance (I/M) programs ......... 340
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 342
Hood............................................... 344
Positioning a floor jack............ 344
Engine compartment............... 346
12-volt battery............................. 352
Tires ................................................ 355
Tire inflation pressure .............. 363
Wheels........................................... 365
Air conditioning filter...............367
Electronic key battery ............. 368
Checking and replacing fuses ........................................................ 370
Headlight aim.............................. 372
Light bulbs .................................... 374

3306-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
6-1.Maintenance and care
Working from top to bottom, liber-
ally apply water to the vehicle body,
wheel wells and underside of the
vehicle to remove any dirt and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use car
wash soap and rinse thoroughly with
water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates.
If water does not bead on a clean surface,
apply wax when the vehicle body is cool.
■Self-restoring coat
The vehicle body has a self-restoring coat-
ing that is resistant to small surface
scratches caused in a car wash etc.
●The coating lasts for 5 to 8 years from
when the vehicle is delivered from the
plant.
●The restoration time differs depending on
the depth of the scratch and outside tem-
perature. The restoration time may
become shorter when the coating is
warmed by applying warm water.
●Deep scratches caused by keys, coins,
etc. cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Turn off the power back door (if equipped)
Start washing from the front of the vehicle.
Extend the mirrors before driving.
●Brushes used in automatic car washes
may scratch the vehicl e surface and harm
your vehicle’s paint.
●Rear spoiler may not be washable in
some automatic car washes. There may
also be an increased risk of damage to
vehicle.
■High pressure car washes
As water may enter the cabin, do not bring
the nozzle tip near the gaps around the
doors or perimeter of the windows, or spray
these areas continuously.
■Note for a smart access system with
push-button start
●If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In that case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft.
(2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving mode to disable the smart access system
with push-button start. ( P.127)
■Aluminum wheels
●Remove any dirt immediately by using a
neutral detergent.
●Wash detergent off with water immedi-
ately after use.
●To protect the paint from damage, make
sure to observe the following precau-
tions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when
they are hot, such as after driving or park-
ing in hot weather
Cleaning and protecting the
vehicle exterior
Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3316-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
6
Maintenance and care
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent
coating (vehicles with water-repellent
coating)
●The following precautions can extend the
effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate
on the windows for a long period.
Clean the windows with a soft, damp
cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance
has become insufficie nt, the coating can
be repaired. Contact your Lexus dealer.
WARNING
■When washing the vehicle
Do not apply water to the inside of the
engine compartment. Doing so may
cause the electrical components etc. to
catch fire.
■When cleaning the windshield (vehi-
cles with rain-sensing windshield wip-
ers)
Set the wiper switch to off.
If the switch is in “AUTO”, the wipers may
operate unexpectedly in the following sit-
uations, and may result in hands being
caught or other serious injuries and
cause damage to the wiper blades.
Off
AUTO
●When the upper part of the windshield
where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close
to the raindrop sensor
●If something bumps against the wind-
shield
●If you directly touch the raindrop sen-
sor body or if something bumps into
the raindrop sensor
■Precautions regarding the exhaust
pipe
Exhaust gasses cause the exhaust pipe to
become quite hot.
When washing the vehicle, be careful not
to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe
can cause burns.
■Precautions regarding the rear
bumper with Blind Spot Monitor (if
equipped)
If the paint of the re ar bumper is chipped
or scratched, the system may malfunc-
tion. If this occurs, consult your Lexus
dealer.
A
B

3326-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
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, in sect 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 chip ped 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
●Keep the cleaning nozzle at least 11.9
in. (30 cm) away from the vehicle
body. Otherwise resin section, such as
moldings and bumpers, may be
deformed and damaged. Also, do not
continuously hold the nozzle in the
same place.
●Do not spray the lower part of the
windshield continuously. If water
enters the air conditioning system
intake located near the lower part of
the windshield, the air conditioning
system may not operate correctly.

3336-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
6
Maintenance and care
 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.
NOTICE
■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.
A
Cleaning and protecting the
vehicle interior
Perform cleaning in a manner
appropriate to each component
and its material.
Protecting the vehicle interior

3346-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
●If the windows are very dirty, do not open
and close them repeatedly.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in the vehi-
cle, such as on the floor, in the hybrid
battery (traction battery) air vents, and
in the luggage compartment. Doing so
may cause the hybrid battery, electri-
cal components, etc. to malfunction or
catch fire.
●Do not get any of the SRS components
or wiring in the vehicle interior wet.
( P.32)
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.
■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+ 2.0)
Do not allow glass cleaner to contact the
lens. Also, do not touch the lens.
(  P.204)
■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.

3356-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
6
Maintenance and care
Clean the air intake vents by the follow-
ing procedures to prevent dust from
accumulating in them, or to prevent
them from clogging.
There are air intake vents on the both sides
of the seats.
■Cleaning the air intake vents
1 Remove the dust from the vents
with a vacuum cleaner etc.
Clean the vents of the both sides.
2Start the hybrid system and check
that the warning message on the multi-information display disap-
pears.
It may take about 20 minutes before the
warning message disappears.
■Cleaning the air intake vents
●Dust on the air inta
ke vents may inter-
feres cooling of the hybrid battery (trac-
tion battery) and results in poor fuel
consumption. Clean the air intake vents
periodically.
●If continuing to drive the vehicle with
“Maintenance required for Traction bat-
tery cooling parts See owner’s manual”
shown on the multi-information display,
the hybrid battery (traction battery) input
and output may be restricted, leading to a
reduction in hybrid battery (traction bat-
tery) output and a malfunction. It may
cause poor fuel consumption or a mal-
function. If the warning message is shown,
contact your Lexus dealer or clean the air
intake vents immediately.
●If the warning message on the multi-infor-
mation display does not disappear after
cleaning the air intake vents, have the
vehicle inspected by your Lexus dealer.
●Timing of cleaning air intake vents differs
depending on the use environment of the
vehicle.
NOTICE
■Cleaning the front side windows
Do not use any compound or abrasive
product (e.g., glass cleaner, detergent,
wax) to clean the wi ndows. It may dam-
age the coating.
Cleaning the air intake vents

3366-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78530_en
Remove dirt using a water-damp-
ened soft cloth or synthetic chamois.
 Wipe the surface with a dry, soft
cloth to remove any remaining
moisture.
■Cleaning the areas with satin-finish
metal accents
The metal areas use a layer of real metal for
the surface. It is necessary to clean them
regularly. If dirty areas are left uncleaned for long periods of time, they may be difficult to
clean.

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 cleani ng 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
■When cleaning the air intake vents
When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake ve nt, which may affect
the performance of the hybrid battery
(traction battery) and cause a malfunc-
tion.
■To prevent damage to the vehicle
Observe the following precautions. Fail-
ure to do so may cause damage to the
vehicle.
●Do not use water or other liquid to
clean the air intake vents
●Do not install anything but the filters
exclusive for this vehicle to the air
intake vents or use the vehicle without
installing the filters.
Cleaning the areas with satin-fin-
ish metal accents
Cleaning the leather areas
Cleaning the synthetic leather
areas