2018 LEXUS NX300h wheel

313
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6 6
Maintenance and care Maintenance and care 6-1. Maintenance and care
Cleaning and protecting the vehi-
cle exterior ................................. 314
Cleaning and protecting the vehi-
cle interior .................................. 317
6-2. Maintenance
Maintenance requirements ... 319
General maintenance ............. 320
Emission inspection and mainte-
nance (I/M) programs ......... 322
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
........................................................ 324
Hood............................................... 325
Positioning a floor jack............ 326
Engine compartment............... 327
12-volt battery............................. 333
Tires ................................................ 336
Tire inflation pressure .............. 343
Wheels........................................... 345
Air conditioning filter............... 346
Electronic key battery ............. 347
Checking and replacing fuses
........................................................ 349
Headlight aim............................... 351
Light bulbs .................................... 353

314 6-1. Maintenance and care
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 ●
Do not allow the nozzles of the car wash
to come within close proximity of the win-
dows. ●
Before using the car wash, check that the
fuel filler door on your vehicle is closed
properly. ■
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. Place the key in a position 6
ft. (2 m) or more separate from the vehi-
cle while the vehicle is being washed.
(Take care to ensure that the key is not
stolen.) ●
If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a buzzer will sound outside the
vehicle. To turn off the alarm, lock all the
doors.
●
Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( → P.123)
■
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.Cleaning and protecting the
vehicle exterior Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3156-1. Maintenance and care
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care • Do not use acidic, a lkaline 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■
Bumpers
Do not scrub with abrasive cleaners. ■
Front side windows water-repellent
coating (vehicles wi th 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

316 6-1. Maintenance and care
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 re sin 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. A

3216-2. Maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care Luggage compartment Items Check points
12-volt battery Check the connections.
( → P.333)
Vehicle interior Items Check points
Accelerator
pedal • The accelerator pedal
should move smoothly
(without uneven pedal
effort or catching).
Brake pedal • Does the brake pedal
move smoothly?
• Does the brake pedal
have appropriate clear-
ance from the floor?
• Does the brake pedal
have the correct amount
of free play?
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?
Hybrid trans-
mission “Park”
mechanism • When parked on a slope
and the shift lever is in P,
is the vehicle securely
stopped? 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 nor-
mally?
• When parked on a slope
and the parking brake is
on, is the vehicle
securely stopped?
Seat belts • Do the seat belts oper-
ate smoothly?
• The seat belts should not
be damaged.
Seats • Do the seat controls
operate properly?
Steering
wheel • Does the steering wheel
rotate smoothly?
• Does the steering wheel
have the correct 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?Items Check points

322 6-2. Maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 12-volt battery is discon-
nected 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.Fluid leaks • There should not be any
signs of fluid leakage
after the vehicle has
been parked.
Tires • Is the tire inflation pres-
sure correct?
• The tires should not be
damaged or excessively
worn.
• Have the tires been
rotated according to the
maintenance schedule?
• The wheel nuts should
not be loose.
Windshield
wipers/
rear window
wiper •The wiper blades should
not show any signs of
cracking, splitting, wear,
contamination or defor-
mation.
•The wiper blades should
clear the windshield/
rear window without
streaking or skipping.Items Check points
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:

3376-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care tires, be sure to replace all four tires.●
All season tires
All season tires are designed to provide
better traction in snow and to be ade-
quate for driving in most winter condi-
tions as well as for use year-round. All
season tires, however, do not have ade-
quate traction performance compared
with snow tires in heavy or loose snow.
Also, all season tires fall short in accelera-
tion and handling performance com-
pared with summer tires in highway
driving.●
Snow tires
For driving on snow-covered roads or icy
roads, we recommend using snow tires. If
you need snow tires, select tires of the
same size, construction and load capacity
as the originally insta lled tires. Since your
vehicle has radial tires as original equip-
ment, make sure your snow tires also
have radial construction. Do not install
studded tires without first checking local
regulations for possible restrictions.
Snow tires should be installed on all
wheels. ( → P.257)■
If the tread on snow tires wears down
below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is
lost.
Rotate the tires in the order shown. To equalize tire wear and extend tire life,
Lexus recommends that tire rotation is car-
ried out at the same in terval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.WARNING■
When inspecting or replacing tires
Observe the following precautions to
prevent accidents.
Failure to do so may cause damage to
parts of the drive train as well as danger-
ous handling characteristics, which may
lead to an accident resulting in death or
serious injury.
●
Do not mix tires of different makes,
models or tread patterns.
Also, do not mix tires of remarkably
different treadwear.
●
Do not use tire sizes other than those
recommended by Lexus. ●
Do not mix differently constructed
tires (radial, bias-belted or bias-ply
tires). ●
Do not mix summer, all season and
snow tires. ●
Do not use tires that have been used
on another vehicle.
Do not use tires if you do not know
how they were used previously. ●
Do not tow if your vehicle has a com-
pact spare tire installed.
NOTICE■
Driving on rough roads
Take particular care when driving on
roads with loose surfaces or potholes.
These conditions may cause losses in tire
inflation pressure, reducing the cushion-
ing ability of the tires. In addition, driving
on rough roads may cause damage to
the tires themselves, as well as the vehi-
cle’s wheels and body. ■
If tire inflation pressure of each tire
becomes low while driving
Do not continue driving, or your tires
and/or wheels may be ruined.
Tire rotation

340 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Situations in which the tire pressure
warning system may not operate prop-
erly●
In the following cases, the tire pressure
warning system may not operate prop-
erly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is
not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is
not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is
equipped.
• If a window tint that affects the radio wave
signals is installed.
• If there is a lot of snow or ice on the vehi-
cle, particularly around the wheels or
wheel housings.
• If the tire inflation pressure is extremely
higher than the specified level.
• If wheel without the tire pressure warning
valve and transmitter is used.
• If the ID code on the tire pressure warn-
ing valves and transmitters is not regis-
tered in the tire pressure warning
computer.●
Performance may be affected in the fol-
lowing situations.
• Near a TV tower, electric power plant,
gas station, radio stat ion, large display,
airport or other faci lity that generates
strong radio waves or electrical noise
• When carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
●
When the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
●
When tire inflation pressure declines rap-
idly for example when a tire has burst, the warning may not function.
When replacing tires or wheels, tire WARNING■
Caution regarding interference with
electronic devices ●
People with implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should not
come within 17.7 in. (450 mm) of the
tire pressure warning system initiators.
The radio waves may affect the opera-
tion of such devices.
●
Users of any electrical medical device
other than implantable cardiac pace-
makers, cardiac resynchronization
therapy-pacemakers or implantable
cardioverter defibrillators should con-
sult the manufacturer of the device for
information about its operation under
the influence of radio waves.
Radio waves could have unexpected
effects on the operation of such medi-
cal devices.
Installing tire pressure warning
valves and transmitters