2018 LEXUS NX300h maintenance schedule

88 2-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_OM78212U warning.
 Sway sensitivity Select to set the vehicle sway warning sen-
sitivity. ■
PCS (Pre-Collision System)
( → P.203)
Select to set up the following items.
 PCS on/off Select to enable/dis able the pre-collision
system.
 PCS sensitivity Select to change the warning timing.■
Intuitive parking assist sensor
(if equipped) ( → P.227)
Select to set up the following items.
 Intuitive parking assist sensor Select to enable/disab le the intuitive park-
ing assist sensor.
 Volume Select to set the volume of the buzzer
which sounds when the intuitive parking
assist sensor is operated.
■
PKSB (Parking Support
Brake System) (if equipped)
( → P.232)
 PKSB on/off Select to enable/dis able the parking sup-
port brake function (for static objects).
■
Clock ( → P.288)
Select to switch between 12-hour dis-
play and 24-hour display. ■
Vehicle Settings
 PBD (Power Back Door)
( → P.110) *1 Select to set up the following items.
•System settings
Select to enable/disable the power back
door system.
•Volume
Select to set the volume of the buzzer
which sounds when the power back door
system.
• Kick Sensor *2
Select to enable/dis able the kick sensor. *1
: Vehicles with power back door *2
: Vehicles with power back door and kick
sensor
 TPMS (Tire Pressure Warning Sys-
tem) ( → P.338)Select to initialize the tire pressure warning
system.
 Scheduled Maintenance ( → P.319)Select to initialize the scheduled mainte-
nance.
 Oil maintenance ( → P.329)Select to reset the engine oil maintenance
information (message indicating mainte-
nance is required and distance until the
next oil change) after engine oil mainte-
nance is performed.
■
Meter settings
 Language Select to change the language on the dis-
play.
 Units Select to change the unit of measure for
fuel consumption.
 EV Indicator ( → P.62)Select to set the EV indicator on/off.
 Switch settings ( → P.85)

160 4-1. Before driving
LEXUS NX300h Owners Manu-
al_USA_OM78212U driven for over 500 miles (800 km).
After the vehicle has been driven for over
500 miles (800 km), you can start towing.
However, for the next 500 miles (800 km),
drive the vehicle at a speed of less than 50
mph (80 km/h) when towing a trailer, and
avoid full throttle acceleration. ■
Maintenance●
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. (See “Warranty
and Services Guide”, “Owner’s Manual
Supplement” or “Scheduled Mainte-
nance”.)●
Retighten the fixing bolts of the towing
ball and bracket after approximately 600
miles (1000 km) of trailer towing.■
If trailer sway occurs
One or more factors (crosswinds, passing
vehicles, rough roads, etc.) can adversely
affect handling of your vehicle and trailer,
causing instability. ●
If trailer swaying occurs:
• Firmly grip the steering wheel. Steer
straight ahead.
Do not try to control trailer swaying by
turning the steering wheel.
• Begin releasing the accelerator pedal
immediately but very gradually to reduce
speed.
Do not increase sp eed. Do not apply
vehicle brakes.
If you make no extreme correction with the
steering or brakes, your vehicle and trailer
should stabilize. ●
After the trailer swaying has stopped:
• Stop in a safe place. Get all occupants
out of the vehicle.
• Check the tires of the vehicle and the
trailer.
• Check the load in the trailer.
Make sure the load has not shifted.
Make sure the tongue weight is appropri-
ate, if possible.
• Check the load in the vehicle.
Make sure the vehicle is not overloaded
after occupants get in.
If you cannot find any problems, the speed
at which trailer swaying occurred is beyond
the limit of your particular vehicle-trailer combination. Drive at a lower speed to pre-
vent instability. Reme mber that swaying of
the towing vehicle-trailer increases as
speed increases.
WARNING■
Trailer towing precautions
To tow a trailer safely, use extreme care
and drive the vehicle in accordance with
the trailer’s characteristics and operating
conditions. Failure to do so could cause
an accident resulting in death or serious
injury. Vehicle stability and braking per-
formance are affected by trailer stability,
brake setting and performance, and the
hitch. Your vehicle will handle differently
when towing a trailer. ■
To avoid accident or injury ●
Do not exceed the TWR, unbraked
TWR, GCWR, GVWR or GAWR. ●
Adjust the tongue weight within the
appropriate range. Place heavier loads
as close to the trailer axle as possible. ●
Do not exceed 65 mph (104 km/h),
the posted towing speed limit or the
speed limit for your trailer as set forth
in your trailer owner’s manual, which-
ever is lowest. Slow down sufficiently
before making a turn, in cross winds,
on wet or slippery surface, etc. to help
avoid an accident. If you experience a
vehicle-trailer instability from reduc-
ing a certain speed, slow down and
make sure you keep your vehicle
speed under the speed of which you
experience the instability.
●
Do not make jerky, abrupt or sharp
turns.
●
Do not apply the brakes suddenly as
you may skid, resulting in jackknifing
and loss of vehicle control. This is
especially true on wet or slippery sur-
faces.
●
Do not exceed the trailer hitch assem-
bly weight, gross vehicle weight, gross
axle weight and tra iler tongue weight
capacities.

2614-6. Driving tips
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving WARNING●
Always check your brakes for effec-
tiveness immediately after driving in
sand, mud, water or snow.●
After driving through tall grass, mud,
rock, sand, water, etc., check that there
is no grass, bush, paper, rags, stone,
sand, etc. adhering or trapped to the
underbody. Clear off any such matter
from the underbody. If the vehicle is
used with these materials trapped or
adhering to the underbody, a break-
down or fire could occur.●
When driving off-road or in rugged
terrain, do not drive at excessive
speeds, jump, make sh arp turns, strike
objects, etc. This may cause loss of
control or vehicle rollover causing
death or serious injury. You are also
risking expensive damage to your
vehicle’s suspension and chassis.
NOTICE■
To prevent water damage
Take all necessary sa fety measures to
ensure that water da mage to the hybrid
battery (traction battery), hybrid system
or other components does not occur. ●
Water entering the engine compart-
ment may cause severe damage to the
hybrid system. Water entering the inte-
rior may cause the hybrid battery
stowed under the rear seats to short
circuit.
●
Water entering the hybrid transmis-
sion and rear electr ic motor (traction
motor) will cause deterioration in
transmission quality. The malfunction
indicator may come on, and the vehi-
cle may not be drivable.
●
Water can wash the grease from wheel
bearings, causing rusting and prema-
ture failure, and may also enter the
hybrid transmission case, reducing the
gear oil’s lubricating qualities. ■
When you drive through water
If driving through water, such as when
crossing shallow streams, first check the
depth of the water and the bottom of the
riverbed for firmness. Drive slowly and
avoid deep water. ■
Inspection after off-road driving ●
Sand and mud that has accumulated
around brake discs may affect braking
efficiency and may damage brake sys-
tem components. ●
Always perform a maintenance
inspection after each day of off-road
driving that has taken you through
rough terrain, sand, mud, or water. For
scheduled maintena nce information,
refer to the “Warranty and Services
Guide/Owner’s Manual Supplement/
Scheduled Maintenance”.

3196-2. Maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6
Maintenance and care 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 perfor ms 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 repa ir order. It proves
that the maintenance that has been per-
formed is under warra nty 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 ma intenance 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 maintenanc e could result in
serious damage to the vehicle and possi-
ble serious injury or death.
■
Handling of the 12-volt 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 re productive harm.
Avoid exposure and wash any affected
area immediately. ●
12-volt Battery post s, terminals and
related accessories contain lead and
lead compounds which are known to
cause brain damage. Wash your hands
after handling. ( → P.333)
General maintenance
Scheduled maintenance

320 6-2. Maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 2 Press or of the meter control
switches, sele ct 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 warra nty 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 hybrid system is operating
Turn the hybrid system off and ensure
that there is adequate ventilation before
performing maintenance checks.
Engine compartment Items Check points
Brake fluid Is the brake fluid at the cor-
rect level? ( → P.332)
Engine/power
control unit
coolant Is the engine coolant at the
correct level? ( → P.330)
Engine oil Is the engine oil at the cor-
rect level? ( → P.328)
Exhaust sys-
tem There should not be any
fumes or strange sounds.
Radiator/con-
denser The radiator and con-
denser should be free from
foreign objects. ( → P.331)
Washer fluid Is there sufficient washer
fluid? ( → P.332)

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:

336 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 indicatorThe location of treadwear indicators is
shown by a “TWI” or “ ” mark, etc.,
molded into the sidewall of each tire.
Replace the tires if the treadwear indica-
tors are showing on a tire. ■
When to replace your vehicle’s tires
Tires should be replaced if: ●
The treadwear indicators are showing on
a tire. ●
You have tire damage such as cuts, splits,
cracks deep enough to expose the fabric,
and bulges indicating internal damage. ●
A tire goes flat repe atedly or cannot be
properly repaired due to the size or loca-
tion of a cut or other damage.
If you are not sure, consult with your Lexus
dealer. ■
Tire life
Any tire over 6 years old must be checked
by a qualified technician even if it has sel-
dom or never been used or damage is not
obvious. ■
Maximum load of tire
Check that the maximum load of the
replacement tire is greater than 1/2 of the
Gross Axle Weight Ratings (GAWR) of
either the front axle or the rear axle, which-
ever is greater.
For the GAWR, see the Certification Label.
For the maximum load of the tire, see the
load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the
tire. ( → P.410)
■
Tire types
●
Summer tires
Summer tires are high-speed perfor-
mance tires best suited to highway driv-
ing under dry conditions. Since summer
tires do not have the same traction per-
formance as snow tires, summer tires are
inadequate for driving on snow-covered
or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is
recommended. When installing snow Tires Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C

346 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1 Turn the power switch off.
2 Open the glove box. Slide off the
damper.
3 Push in the glove box on the vehi-
cle’s outer side to disconnect the
claws. Then pull out the glove box
and disconnect the lower claws. 4 Remove the filter cover.
5 Remove the air conditioning filter
and replace it with a new one. The “ UP” marks shown on the filter
should be pointing up.
■
Checking interval
Inspect and replace the air conditioning fil-
ter according to the maintenance schedule.
In dusty areas or areas with heavy traffic
flow, early replacement may be required.
(For scheduled maintenance information,
please refer to the “Owner’s Manual Sup-
plement” or “Scheduled Maintenance”.)
■
If air flow from the vents decreases dra-
matically
The filter may be clogged. Check the filter
and replace if necessary.
■
Air conditioning filt er with deodorizing
function
When fragrances are placed in your vehi-
cle, the deodorizing effect may become
significantly weakened in a short period:
When an air conditioning odor comes out
continuously, replace the conditioning filter.Air conditioning filter The air conditioning filter must be
changed regularly to maintain air
conditioning efficiency.
Removal method