6089-1. Specifications
NX300h_OM_USA_OM78082U
■Engine number
The engine number is stamped on
the engine block as shown.
Front
Rear (AWD models)
Engine
Model2.5 L 4-cylinder (2AR-FXE)
Ty p e4-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.)
Electric motor (traction motor)
Ty p ePermanent magnet synchronous motor
Maximum output105 kW
Maximum torque199 ft•lbf (270 N•m, 27.5 kgf•m)
Ty p ePermanent magnet synchronous motor
Maximum output50 kW
Maximum torque103 ft•lbf (139 N•m, 14.2 kgf•m)
6109-1. Specifications
NX300h_OM_USA_OM78082U
■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 start-
ing in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20
at the next oil change.
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows cold startability. Oils with a lower value before the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscos ity characteristic of the oil when the
oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use.
Outside temperature
6169-1. Specifications
NX300h_OM_USA_OM78082U
Fuel information
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you are
using. If driveability problems persist, try changing the brand of gasoline. If this does not
correct the problem, consult your Lexus dealer.
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Eu rope and Japan have developed a specifi-
cation for fuel quality called the World-Wi de Fuel Charter (WWFC), which is expected
to be applied worldwide.
●The WWFC consists of four cat egories that are based on required emission levels. In
the U.S., category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and improves
customer satisfaction through better performance.
■Recommendation of the use of gasoli ne containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid the
build-up of engine deposits.
●All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/or
keep clean intake systems, per EPA’s lowest additives concentration program.
●Lexus strongly recommends the use of Top Ti er Detergent Gasoline. For more informa-
tion on Top Tier Detergent Gasoline and a list of marketers, please go to the official
website www.toptiergas.com.
You must only use unleaded gasoline in your vehicle.
Select octane rating 87 (Research Octane Number 91) or higher. Use of
unleaded gasoline with an octane rating lower than 87 may result in engine
knocking. Persistent knocking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications of ASTM
D4814 in the U.S.A.
6179-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated
gasolines, are available in some cities. These fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the fo rmulations allow for reduced vehicle emis-
sions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure th at it has an octane rating no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasolin e that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking fo r a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)
6189-1. Specifications
NX300h_OM_USA_OM78082U
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic converters
causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system da mage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than the level previ-
ously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is encoun-
tered 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 damage your vehicle’s paint.
6259-1. Specifications
9
Vehicle specifications
NX300h_OM_USA_OM78082U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle 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 pres-
sureThe maximum cold inflated pressure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold 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 steer-
ing, power brakes, power wi ndows, 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 vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1* below
6369-2. Customization
NX300h_OM_USA_OM78082U
■Multi-information display ( P. 9 7 , 1 0 2 )
*1: The default setting varies according to countries.
*2: Some status screens cannot be registered (indicated on the multi-information display)
*3: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank
*4: Intersection guidance, Incoming calls, Adjust brightness
FunctionDefault settingCustomized setting
Changeover to tachometer
when sport mode is selected AutoHybrid system
indicator (always) –O– –
Tachometer (always)
EV indicatorOnOff–O––
Language*1EnglishFrench–O––Spanish
Units*1miles (MPG US)
miles
(MPG Imperial)
–O––km (L/100km)
km (km/L)
switch settingsDrive
information 1Desired status screen
*2–O––
Drive information screen dis-
played on the first screen of
(Drive information 1)Current fuel
consumption
*3–O––Average fuel
consumption (after reset)
Drive information screen dis-
played on the second screen
of
(Drive information 2)Distance (range)
*3–O––Average speed
(after reset)
Po p - u p d i s p l a y*4OnOff–O––
Accent colorColor 1Color 2OO––
1234
666Alphabetical index
NX300h_OM_USA_OM78082U
Flat tire ...................................................... 575
Floor mats ................................................... 28
FluidBrake ......................................................... 612
Transmission.......................................... 612
Washer ...................................................... 511
Fog lights Replacing light bulbs ....................... 552
Switch....................................................... 227
Front passenger occupant classification system ............................ 53
Front passenger’s seat belt reminder light ..................................... 567
Front seats .................................................146 Adjustment ............................................. 146
Cleaning ................................................ 488
Correct driving posture ....................30
Driving position memory ................ 154
Head restraints ..................................... 158
Power easy access system ............ 154
Seat heaters ......................................... 440
Seat position memory....................... 154
Front side marker lights Light switch ............................................ 219
Replacing light bulbs ........... 545, 552
Wattage ................................................... 615 Front turn signal lights
Replacing light bulbs .......................545
Turn signal lever ................................... 212
Wattage ...................................................615
Fuel Capacity ................................................ 608
Fuel gauge ................................................97
Gas station information................. 680
Information..............................................616
Refueling ................................................ 236
Type......................................................... 608
Fuel filler door.........................................236 Refueling ................................................ 236
When the fuel filler door cannot be opened ......................... 238
Fuses.......................................................... 534
Garage door opener........................... 467
Gas station information ..................... 680
Gauges......................................................... 97
Glove box ................................................ 447
Grocery bag hooks............................... 451
F
G