2021 LEXUS NX300h fuel type

13Pictorial index
LEXUS NX300h Owners Manual_USA_M78578_en
Windshield wipers ........................................................................................ P.196, 201
Precautions against winter season ................... ......................................................... P.279
To prevent freezing (windshield wiper de-icer) .................................................. P.296
Precautions against car wash ...................................................................................... P.333
Fuel filler door ........................................................................................................ P.203
Refueling method .............................................................................................................P. 203
Fuel type/fuel tank capacity ...... ................................................................................... P.425
Tires.......................................................................................................................... ..P.357
Tire size/inflation pressure ...........................................................................................P.430
Winter tires/tire chain .................................................................................................... P.27 9
Checking/rotation/tire pressure warning system.............................................. P.357
Coping with flat tires........................................................................................................ P .402
Hood ..........................................................................................................................P.346
Opening ........................................................................................................................ ....... P.346
Engine compartment cover ......................................................................................... P.349
Engine oil ..................................................................................................................... ......... P.426
Coping with overheat ...................................................................................................... P.418
Warning messages ..........................................................................................................P.398
Headlights .................................................................................................................P.19 0
Parking lights/daytime running lights...............................................................P.190
Fog lights.................................................................................................................... P .196
Cornering lights
*.................................................................................................................P.192
Turn signal lights ......................................................................................................P.183
Tail lights .................................................................................................................... P.190
License plate lights .................................................................................................P.190
Back-up light
Shifting the shift lever to R .............................................................................................. P.18 0
Light bulbs of the exterior lights for driving
(Replacing method: P.375, Watts: P.431)
D
E
F
G
H
I
J
K
L
M
N

341-1. For safe use
LEXUS NX300h Owners Manual_USA_M78578_en
Front passenger’s seat belt buckle switch
Front impact sensors
Airbag sensor assembly
Your vehicle is equipped with ADVANCED AIRBAGS designed based on the US motor
vehicle safety standards (FMVSS208). The airbag sensor assembly (ECU) controls airbag
deployment based on information obtained from the sensors etc. shown in the system com-
ponents diagram above. This in formation includes crash severity and occupant information.
As the airbags deploy, a chemical reaction in the inflators quickly fills the airbags with non-
toxic gas to help restrain the motion of the occupants.
■If the SRS airbags deploy (inflate)
●Slight abrasions, burn s, bruising, etc., may
be sustained from SRS airbags, due to the
extremely high speed deployment (infla-
tion) by hot gases.
●A loud noise and white powder will be
emitted.
●Parts of the airbag module (steering
wheel hub, airbag cover and inflator) as
well as the front seat s, parts of the front
and rear pillars, and roof side rails, may
be hot for several minutes. The airbag
itself may also be hot.
●The windshield may crack.
●The hybrid system will be stopped and
fuel supply to the engine will be stopped.
(  P.73)
●All of the doors will be unlocked. ( P.111)
●For Lexus Enform Safety Connect sub-
scribers, if any of the following situations
occur, the system is designed to send an
emergency call to the response center,
notifying them of the vehicle’s location
(without needing to push the “SOS” but-
ton) and an agent will attempt to speak
with the occupants to ascertain the level
of emergency and assi stance required. If
the occupants are unable to communi-
cate, the agent automatically treats the
call as an emergency and helps to dis-
patch the necessary emergency services.
(  P.60)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear- end collision.
■SRS airbag deployment conditions (SRS
front airbags)
●The SRS front airbags will deploy in the
event of an impact that exceeds the set
threshold level (the level of force corre-
sponding to an approximately 12-18 mph
[20-30 km/h] frontal collision with a
fixed wall that does not move or deform).
However, this threshold velocity will be con-
siderably higher in the following situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can
move or deform on impact
• If the vehicle is involved in an underride
collision, such as a collision in which the
front of the vehicle underrides, or goes
under, the bed of a truck
●Depending on the type of collision, it is
possible that only the seat belt preten-
sioners will activate.
●The SRS front airbags for the front pas-
senger will not activate if there is no pas-
senger sitting in the front passenger seat.
However, the SRS front airbags for the
front passenger may deploy if luggage is
put in the seat, even if the seat is unoccu-
pied.
●The SRS seat cushion airbag on the front
passenger seat will not operate if the
occupant is not wearing a seat belt.
■SRS airbag deployment conditions (SRS
side and curtain shield airbags)
●The SRS side and curtain shield airbags
will deploy in the event of an impact that
exceeds the set threshold level (the level
of force corresponding to the impact
force produced by an approximately
3300 lb. [1500 kg] vehicle colliding with
P
Q
R

1032-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78578_en
2
Vehicle status information and indicators
■Resetting the data
The fuel consumption data can be deleted
by selecting “Clear”.
■Cruising range
Displays the estimated maximum distance
that can be driven with the quantity of fuel
remaining.
This distance is comp uted based on your
average fuel consumption.
As a result, the actual distance that can be
driven may differ from that displayed.
Display the vehicle information on the
side display ( P.289), and then select
or to display the desired
screen.
■Trip information (type A)
Displays the average fuel consumption
and regenerated energy for the past 10
minutes in 1 minute intervals, as well as
the cruising range.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump-
tion as a reference.
■Trip information (type B)
Displays the cruising range, latest fuel
consumption and the amount of time elapsed since the hybrid system was
started.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump-
tion as a reference.
■History
Displays the average fuel consumption
and highest fuel consumption.
The image is an example only, and may
vary slightly from actual conditions.
Use the displayed average fuel consump-
tion as a reference.
■Energy monitor
Displays the hybrid system operation
and energy recovery states.
Displayed content is th e same as that dis-
played on the multi-information display.
(  P.100)
Using the side display (vehicles
with navigation system)

2034-4. Refueling
LEXUS NX300h Owners Manual_USA_M78578_en
4
Driving
4-4.Refueling
Turn the power switch off and
ensure that all the doors and win-
dows are closed.
 Confirm the type of fuel.
■Fuel types
 P.432
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi-
cle has a fuel tank opening that only accom-
modates the special nozzle on unleaded
fuel pumps.
■If the malfunction indicator lamp illumi-
nates
The malfunction indicator lamp may illumi-
nate erroneously if refueling is performed
repeatedly when the fuel tank is nearly full.
1 With all doors unlocked, press the
center of the rear edge of the fuel
filler door.
Push inward and take your hand away to
slightly open the fuel filler door. Then open
Opening the fuel tank cap
Before refueling the vehicle
WARNING
■When refueling the vehicle
Observe the following precautions while
refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before
opening the fuel door, touch an
unpainted metal surface to discharge
any static electricity. It is important to
discharge static electricity before refu-
eling because sparks resulting from
static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank
cap and turn it slowly to remove it.
A whooshing sound may be heard
when the fuel tank cap is loosened.
Wait until the sound cannot be heard
before fully removing the cap. In hot
weather, pressurized fuel may spray
out of the filler neck and cause injury.
●Do not allow anyone that has not dis-
charged static electricity from their
body to come close to an open fuel
tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are
harmful if inhaled.
●Do not smoke while refueling the vehi-
cle.
Doing so may cause the fuel to ignite
and cause a fire.
●Do not return to the vehicle or touch
any person or object that is statically
charged. This may cause static elec-
tricity to build up, re sulting in a possible
ignition hazard.
■When refueling
Observe the following precautions to
prevent fuel overflowing from the fuel
tank:
●Securely insert the fuel nozzle into the
fuel filler neck.
●Stop filling the tank after the fuel noz-
zle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such
as causing the emission control system to
operate abnormally, damaging fuel sys-
tem components or the vehicle’s painted
surface.
Opening the fuel tank cap

4097-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.412)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.70)
 There may be a malfunction in the
immobilizer system. ( P.75)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system. ( P.410)
WARNING
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
■Be careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
■Driving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle body
and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
If the hybrid system will not
start
Reasons for the hybrid system not
starting vary depending on the situ-
ation.
Check the following and perform
the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
(  P.174)

4258-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
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Vehicle specifications
This number is also stamped under the
right-hand front seat.
■Engine number
The engine number is stamped on the
engine block as shown.
Engine
Model2.5 L 4-cylinder (2AR-FXE)
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.54  3.86 in. (90.0  98.0 mm)
Displacement152.2 cu.in. (2494 cm3)
Valve clearance (engine cold)Automatic adjustment
Drive belt tensionAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or higher
Fuel tank capacity (Reference)14.8 gal. (56 L, 12.3 Imp.gal.)

4268-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
Front
Rear
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine oil.
Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and check
the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity. Oil grade: ILSAC GF-5 multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
Electric motor (traction motor)
TypePermanent magnet synchronous motor
Maximum output105 kW
Maximum torque199 ft•lbf (270 N•m, 27.5 kgf•m)
TypePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque103 ft•lbf (139 N•m, 14.2 kgf•m)
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity34 modules
Nominal voltage244.8 V
Lubrication system
With filter4.6 qt. (4.4 L, 3.9 Imp.qt.)
Without filter4.2 qt. (4.0 L, 3.5 Imp.qt.)

4338-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
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Vehicle specifications
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper
fuels are used, the engine will be dam-
aged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to
your vehicle’s three-way catalytic con-
verters causing the emission control sys-
tem to malfunction.
●Do not use gasohol other than the type
previously stated.
Other gasohol may cause fuel system
damage or vehicle performance prob-
lems.
●Using unleaded gasoline with an
octane number or rating lower than
the level previously stated will cause
persistent he avy knocking.
At worst, this will lead to engine dam-
age.
■Fuel-related poor driveability
If poor driveability (poor hot starting,
vaporization, engine knocking, etc.) is
encountered after using a different type
of fuel, discontinue the use of that type of
fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can dam-
age your vehicle’s paint.