low oil pressure LEXUS NX300h 2018 Owners Manual

752-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_OM78212U 2
Vehicle status information and indicators Warning lights inform the driver of mal-
functions in any of the vehicle’s sys-
tems.
*1
: These lights turn on when the power
switch is turned to ON mode to indi-
cate that a system check is being per-
formed. They will turn off after the
hybrid system is on, or after a few sec-Warning lights (U.S.A.)
Brake system warning light *1

( → P.365)(Red)
(Canada)
Brake system warning light *1

( → P.365)
Charging system warning
light *2
( → P.365)
Low engine oil pressure warn-
ing light *2
( → P.365)
High coolant temperature
warning light *2
( → P.366)
(Yellow)
Brake system warning light *1

( → P.366)
(U.S.A.)
Malfunction indicator lamp *1

( → P.366)
(Canada)
Malfunction indicator lamp *1

( → P.366)
SRS warning light *1
( → P.366)
(U.S.A.)
ABS warning light *1
( → P.367)
(Canada)
ABS warning light *1
( → P.367)
(Yellow) Electric power steering sys-
tem warning light *1
( → P.367) (Red)
Electric power steering sys-
tem warning light *1
( → P.367)
PCS warning light *1
( → P.367)(if equipped)
PKSB OFF indicator *1, 3
( → P.368)(Orange)
LDA indicator *2
( → P.368)
Slip indicator light *1
( → P.368)
Brake hold operated indica-
tor *1, 3
( → P.368)(U.S.A.)
Parking brake indicator *3

( → P.369)
(Canada)
Parking brake indicator *3

( → P.369)
Low fuel level warning light
( → P.369)
Driver’s and front passenger’s
seat belt reminder light
( → P.369)
Rear passengers' seat belt
reminder light *4
( → P.370)
Master warning light *1

( → P.370)
Tire pressure warning light *1

( → P.370)
Brake Override System/
Drive-Start Control warning
light *2
( → P.371)

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)

2574-6. Driving tips
LEXUS NX300h Owners Manu-
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Driving  Use fluids that are appropriate to
the prevailing outside temperatures. •Engine oil
• Engine/power control unit coolant
•Washer fluid
 Have a service technician inspect
the condition of the 12-volt battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the front tires *
.Ensure that all tires are the same size and
brand, and that chains match the size of the
tires. *
: Tire chains cannot be mounted on the
225/60R18 tires.
Perform the following according to the
driving conditions:
 Do not try to forcibly open a window
or move a wiper that is frozen. Pour
warm water over the frozen area to
melt the ice. Wipe away the water Winter driving tips Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■
Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri-
ous injury.
●
Use tires of the specified size.
●
Maintain the recommended level of air
pressure. ●
Do not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used. ●
Use snow tires on all, not just some
wheels. ■
Driving with tire chains
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehicle
being unable to be driven safely, and may
cause death or serious injury. ●
Do not drive in excess of the speed
limit specified for the tire chains being
used, or 30 mph (50 km/h), which-
ever is lower. ●
Avoid driving on bumpy road surfaces
or over potholes. ●
Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking. ●
Slow down sufficiently before entering
a curve to ensure that vehicle control is
maintained.
NOTICE■
Repairing or replacing snow tires
Request repairs or replacement of snow
tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attach-
ment of snow tires affects the operation
of the tire pressure warning valves and
transmitters.
Before driving the vehicle

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

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

324 6-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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
12-volt Bat-
tery condition
( → P.333) •Grease
•Conventional wrench
(for terminal clamp
bolts)
Brake fluid
level
( → P.332) • FMVSS No.116 DOT 3
or SAE J1703 brake
fluid
• Rag or paper towel
• Funnel (used only for
adding brake fluid)
Engine/power
control unit
coolant level
( → P.330) • “Toyota Super Long Life
Coolant” or a similar
high quality ethylene gly-
col-based non-silicate,
non-amine, non-nitrite
and non-borate coolant
with long-life hybrid
organic acid technology
For the U.S.A.:
“Toyota Super Long Life
Coolant” is pre-mixed
with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life
Coolant” is pre-mixed
with 55% coolant and
45% deionized water.
• Funnel (used only for
adding coolant) Engine oil
level
( → P.328) •“Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
• Funnel (used only for
adding engine oil)
Fuses
( → P.349) • Fuse with same amper-
age rating as original
Light bulbs
( → P.353) •Bulb with same number
and wattage rating as
original
Headlight aim • Phillips-head screw-
driver
Radiator and
condenser
( → P.331) —
Tire inflation
pressure
( → P.343) • Tire pressure gauge
• Compressed air source
Washer fluid
( → P.332) • 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
●
Make sure that the indicator on the
power switch and the “READY” indi-
cator are both off.
●
Keep hands, clothing and tools away
from the moving fan and engine drive
belt. Items Parts and tools

3657-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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When trouble arises ■
Brake system warning light
■
Charging system warning light *
*
: This light illuminates on the multi-information display.
■
Low engine oil pressure warning light (warning buzzer) *
*
: This light illuminates on the multi-information display.If a warning light turns on or a warning buzzer soundsCalmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, bu t then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers Warning light Details/Actions(U.S.A.)
(Red)
(Canada) Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
→ Immediately stop the vehicl e in a safe place and con-
tact your Lexus dealer. Continuing to drive the vehicle
may be dangerous.
Warning light Details/Actions
Indicates a malfunction in the vehicle’s charging system
→ Immediately stop the vehicl e in a safe place and con-
tact your Lexus dealer. Continuing to drive the vehicle
may be dangerous.
Warning light Details/Actions
Indicates that the engine oil pressure is too low
→ Immediately stop the vehicl e in a safe place and con-
tact your Lexus dealer. Continuing to drive the vehicle
may be dangerous.

376 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U charged” ( → P.390).*
: Displays for about 6 seconds ■
If “Traction Battery Needs to be Pro-
tected Refrain From the Use of N Posi-
tion” is shown
This message may be displayed when the
shift lever is in N.
As the hybrid battery (traction battery) can-
not be charged when the shift lever is in N,
when the vehicle is to be stopped for a long
period of time, shift the shift lever to P. ■
If “Traction battery needs to be pro-
tected. Shift into P to restart.” is shown
Message is displayed when the remaining
charge for the hybrid battery (traction bat-
tery) is low, because vehicle has been
shifted N for a long period of time.
When operating the vehicle, restart the
hybrid system. ■
If “Shift to P Before Exiting Vehicle” is
shown
Message is displayed when the driver’s
door is opened with out turning the power
switch to OFF with the shift lever in any
position other than P.
Shift the shift lever to P. ■
If “Shift Is in N Release Accelerator
Before Shifting” is shown
Message is displayed when the accelerator
pedal has been depressed and the shift
lever is in N. Releas e the accelerator pedal
and shift the shift lever to D, S or R. ■
If “Depress Brake When Vehicle Is
Stopped Hybrid Syst em May Overheat”
is shown
Message is displayed when the accelerator
pedal is depressed to maintain the vehicle
position when stopped on a upward slope,
etc.
If this continues, th e hybrid system may
overheat.
Release the accelerator pedal and depress
the brake pedal.
■
If “Front Camera Unavailable” or “Front
Camera Unavailable Remove Debris
On Windshield” is shown
The following systems may be suspended
until the problem shown in the message is resolved. ( → P.209, 367)●
PCS (Pre-Collision System) ●
LDA (Lane Departure Alert with steering
control) ●
Dynamic radar cruise control with full-
speed range ●
Adaptive High-beam System ●
Automatic High Beam ■
If “Oil Maintenance Required Soon” is
shown
Indicates that the engine oil is scheduled to
be changed. (The indicator will not work
properly unless the oi l maintenance data
has been reset.)
Check the engine oil, and change if neces-
sary. After changing th e engine oil, the oil
change system should be reset. ( → P.329)■
If “Oil Maintenance Required” is shown
Indicates that the engine oil should be
changed. (After the engine oil is changed
and the oil maintenance data has been
reset.)
Check and change the en gine oil, and oil fil-
ter by your Lexus dealer. After changing the
engine oil, the oil change system should be
reset. ( → P.329)■
If “See Owner’s Manual” is shown ●
If the following messages are shown, fol-
lowing the instruct ions, accordingly.
• “Engine Coolant Temp High” ( → P.394)
• “Aux Battery Low” ( → P.375)●
If the following messages are shown,
there may be a malfunction.
Immediately have the vehicle inspected
by your Lexus dealer.
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Braking Power Low”
• “Smart Access System Malfunction”
●
If the following messages are shown,
there may be a malfunction.
Immediately stop the vehicle in a safe
place and contact your Lexus dealer.
Continuing to drive the vehicle may be
dangerous.
• “Oil Pressure Low”

414 8-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U Glossary of tire terminology Tire related
term Meaning
Cold tire
inflation
pressure Tire pressure when the vehi-
cle has been parked for
three hours or more, or has
not been driven more than 1
mile or 1.5 km under that
condition
Maximum
inflation
pressure The maximum cold inflated
pressure to which a tire may
be inflated, shown on the
sidewall of the tire
Recom-
mended
inflation
pressure Cold tire inflation pressure
recommended by a manu-
facturer
Accessory
weight The combined weight (in
excess of those standard
items which may be
replaced) of transmission,
power steering, power
brakes, power windows,
power seats, radio and
heater, to the extent that
these items are available as
factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehi-
cle with standard equip-
ment, including the
maximum capacity of fuel,
oil and coolant, and if so
equipped, air conditioning
and additional weight
optional engine Maximum
loaded vehi-
cle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options
weight
Normal
occupant
weight 150 lb. (68 kg) times the
number of occupants speci-
fied in the second column of
Table 1 *
that follows
Occupant
distribution Distribution of occupants in
a vehicle as specified in the
third column of Table 1 *

below
Production
options
weight The combined weight of
installed regular production
options weighing over 5 lb.
(2.3 kg) in excess of the
standard items which they
replace, not previously con-
sidered in curb weight or
accessory weight, including
heavy duty brakes, ride lev-
elers, roof rack, heavy duty
12-volt battery, and special
trim
Rim A metal support for a tire or
a tire and tube assembly
upon which the tire beads
are seated
Rim diame-
ter
(Wheel
diameter) Nominal diameter of the
bead seat
Rim size des-
ignation Rim diameter and widthTire related
term Meaning

4298-3. Initialization
LEXUS NX300h Owners Manu-
al_USA_OM78212U 8
Vehicle specifications 8-3.Initialization
*
:If equippedItems to initialize The following items must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle.
List of the items to initialize Item When to initialize Reference
Message indicating maintenance is
required (U.S.A. only) • After the maintenance is per-
formed P.319
Tire pressure warning system • When rotating the tires on vehi-
cles with differing front and rear
tire inflation pressures
• When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
•When changing the tire size P.341
Oil maintenance • After the maintenance is per-
formed P.329
Lexus parking assist monitor *
• After reconnecting or changing
the 12-volt battery
• After changing a fuse Refer to the
“NAVIGA-
TION AND
MULTIME-
DIA SYS-
TEM
OWNER’S
MANUAL”.Panoramic view monitor *
Power back door *
P.116
Power window
• When functioning abnormally P.144
Moon roof *
P.147