engine LEXUS NX300H 2019 Owners Manual

4TABLE OF CONTENTS
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5-5. Using the other interior featuresOther interior features .............. 286
Garage door opener.................. 296
Compass........................................... 301
Lexus Enform Safety Connect 304
Lexus Enform Remote ............... 309
Lexus Enform Service Connect ............................................................ 310
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior .................................... 312
Cleaning and protecting the vehi- cle interior ..................................... 315
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.................................................. 326
Positioning a floor jack............... 326
Engine compartment.................. 328
12-volt battery................................ 334
Tires ................................................... 337
Tire inflation pressure ................. 345
Wheels.............................................. 346
Air conditioning filter..................348
Electronic key battery ................ 349
Checking and replacing fuses . 351
Headlight aim................................. 353
Light bulbs ....................................... 3557-1. Essential information
Emergency flashers .................... 360
If your vehicle has to be stopped in an emergency ............................ 360
7-2. Steps to take in an emergency If your vehicle needs to be towed.......................................................... 362
If you think something is wrong .......................................................... 365
If a warning light turns on or a warn- ing buzzer sounds..................... 367
If a warning messa ge is displayed
.......................................................... 376
If you have a flat tire .................... 379
If the hybrid syst em will not start
.......................................................... 387
If you lose your keys.................... 388
If the fuel filler door cannot be opened .......................................... 389
If the electronic key does not oper- ate properly ................................. 389
If the 12-volt battery is discharged .......................................................... 392
If your vehicle overheats ........... 396
If the vehicle becomes stuck ... 399
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 40
2
Fuel information............................. 410
Tire information .............................. 412
6Maintenance and care
7When trouble arises
8Vehicle specifications

7
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appliances despite of their electro-
magnetic shielding.
Unwanted noise may occur in the
reception of the mobile two-way radio.
Your Lexus is equipped with several
sophisticated computers that will
record certain data, such as:
• Engine speed
• Electric motor speed (traction motor speed)
• Accelerator status
•Brake status
• Vehicle speed
•Shift position
• Hybrid battery (traction battery) status
The recorded data varies according to
the vehicle grade level and options
with which it is equipped. These com-
puters do not record conversations or
sounds, and only record images out-
side of the vehicle in certain situations.
 Data Transmission
Your vehicle may transmit the data
recorded in these computers to Lexus
without notification to you.
Data usage
Lexus may use the data recorded in these
computers to diagnose malfunctions, con-
duct research and development, and
improve quality.
Lexus will not disclose the recorded data to
a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehi-
cle is leased • In response to an official request by the
police, a court of law or a government
agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or vehicle
owner
 Usage of data collected through
Lexus Enform (U.S. mainland only)
If your Lexus has Lexus Enform and if you
have subscribed to those services, please
refer to the Lexus Enform Telematics Sub-
scription Service Ag reement for informa-
tion on data collected and its usage.
 To learn more abou t the vehicle data
collected, used and shared by
Lexus, please visit
www.lexus.com/privacyvts/
.
This vehicle is equipped with an event
data recorder (EDR). The main pur-
pose of an EDR is to record, in certain
crash or near crash-like situations, such
as an air bag deployment or hitting a
road obstacle, data that will assist in
understanding how a vehicle’s systems
performed. The EDR is designed to
record data related to vehicle dynam-
ics and safety systems for a short
period of time, typically 30 seconds or
less.
The EDR in this vehicle is designed to
record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and pas- senger safety belts were buckled/
fastened;
Vehicle data recordings
Event data recorder

13Pictorial index
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Precautions against winter season ............................................................................ P.256
To prevent freezing (windshield wiper de-icer) .................................................... P.271
Precautions against car wash ....................................................................................... P.313
Fuel filler door .......................................................................................................... P.195
Refueling method .............................................................................................................. P .195
Fuel type/fuel tank capacity ...... ...................................................................................P.403
Tires.......................................................................................................................... ..P.337
Tire size/inflation pressure ............................ ...............................................................P.408
Winter tires/tire chain .................................................................................................... P.256
Checking/rotation/tire pressure warning system.............................................. P.337
Coping with flat tires........................................................................................................ P .379
Hood ..........................................................................................................................P.326
Opening ........................................................................................................................ ....... P.326
Engine compartment cover ......................................................................................... P.329
Engine oil ..................................................................................................................... ......... P.404
Coping with overheat ..................................................................................................... P.396
Warning messages .......................................................................................................... P.376
Headlights .................................................................................................................P.18 2
Parking lights/daytime running lights...............................................................P.182
Fog lights................................................................................................................... P. 188
Turn signal lights ...................................................................................................... P.176
Tail lights .................................................................................................................... P.182
License plate lights .................................................................................................P.182
Back-up light
Shifting the shift lever to R ...............................................................................................P.1 73
Side marker lights ...................................................................................................P.182
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.355, Watts: P.409)
E
F
G
H
I
J
K
L
M
N
O

611-2. Hybrid system
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For safety and security
1-2.Hybrid system
The illustration is an example for explanation and may differ from the actual item.
Gasoline engine
Front electric motor (traction motor)
Rear electric motor (traction motor)
■When stopped/during start off
The gasoline engine stops
* when the
vehicle is stopped. During start off, the
electric motor (traction motor) drives
the vehicle. At slow speeds or when
traveling down a gentle slope, the engine is stopped
* and the electric
motor (traction motor) is used.
When the shift lever is in N, the hybrid
battery (traction battery) is not being
charged. When the vehicle is stopped,
always put the shift lever to P.
Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics different from conven-
tional vehicles. Be sure you are closely fa miliar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) according to driving conditions, improving fuel effi-
ciency and reducing exhaust emissions.
System components
A
B
C

621-2. Hybrid system
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Also, even in heavy traffic conditions,
drive the vehicle in D or S.
*: When the hybrid battery (traction bat-tery) requires charging or the engine is
warming up, etc., the gasoline engine will
not automatically stop. ( P.62)
■During normal driving
The gasoline engine is predominantly
used. The electric motor (traction
motor) charges the hybrid battery
(traction battery) as necessary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of the
hybrid battery (traction battery) is
added to that of the gasoline engine via
the electric motor (traction motor).
■When braking (regenerative brak-
ing)
The wheels operate the electric motor
(traction motor) as a power generator,
and the hybrid battery (traction bat-
tery) is charged.
■Regenerative braking
In the following situations, kinetic energy is
converted to electric energy and decelera-
tion force can be obta ined in conjunction
with the recharging of the hybrid battery
(traction battery).
●The accelerator pedal is released while
driving with the shift lever in D or S.
●The brake pedal is depressed while driv-
ing with the shift lever in D or S.
■EV indicator
The EV indicator comes on when the vehi-
cle is driven using only the electric motor
(traction motor) or th e gasoline engine is
stopped.
■Conditions in which the gasoline engine
may not stop
The gasoline engine starts and stops auto-
matically. However, it may not stop auto-
matically in the following conditions
*:
●During gasoline engine warm-up
●During hybrid battery (traction battery)
charging
●When the temperature of the hybrid bat-
tery (traction battery) is high or low
●When the heater is switched on
*: Depending on the circumstances, the gasoline engine may also not stop auto-
matically in other situations.
■Charging the hybrid battery (traction
battery)
As the gasoline engine charges the hybrid
battery (traction battery), the battery does
not need to be charged from an outside
source. However, if the vehicle is left parked
for a long time the hybrid battery (traction
battery) will slowly discharge. For this rea-
son, be sure to drive the vehicle at least
once every few months for at least 30 min-
utes or 10 miles (16 km ). If the hybrid bat-
tery (traction battery) becomes fully
discharged and you are unable to start the
hybrid system, contact your Lexus dealer.
■Charging the 12-volt battery
 P.394
■After the 12-volt battery has discharged
or when the terminal has been removed
and installed during exchange, etc.
The gasoline engine may not stop even if
the vehicle is being driven by the hybrid bat-
tery (traction battery). If this continues for a
few days, contact your Lexus dealer.

631-2. Hybrid system
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For safety and security
■Sounds and vibrations specific to a
hybrid vehicle
There may be no engine sound or vibration
even though the vehicle is able to move with
the “READY” indicator is illuminated. For
safety, make sure to sh ift the shift lever to P
and apply the parking brake when parked.
The following sounds or vibrations may
occur when the hybrid system is operating
and are not a malfunction:
●Motor sounds may be heard from the
engine compartment.
●Sounds may be heard from the hybrid
battery (traction battery) behind the rear
seats when the hybrid system starts or
stops.
●Relay operating sounds such as a snap or
soft clank will be emitted from the hybrid
battery (traction battery), behind the rear
seats, when the hybrid system is started
or stopped.
●Sounds from the hybrid system may be
heard when the back door is open.
●Sounds may be heard from the transmis-
sion when the gasoline engine starts or
stops, when driving at low speeds, or
during idling.
●Engine sounds may be heard when
accelerating sharply.
●Sounds may be heard due to regenera-
tive braking when the brake pedal is
depressed or as the accelerator pedal is
released.
●Vibration may be felt when the gasoline
engine starts or stops.
●Cooling fan sounds may be heard from
the air intake vents under the rear seats.
■Maintenance, repair, recycling, and dis-
posal
Contact your Lexus dealer regarding main-
tenance, repair, recycling and disposal. Do
not dispose of the vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV
indicator) can be changed.
(Customizable features:  P.421)
When driving with the gasoline engine
stopped, a sound, which changes in
accordance with the driving speed, will
be played in order to warn people
nearby of the vehicle’s approach. The
sound will stop when the vehicle speed
exceeds approximately 15 mph (25
km/h).
■Vehicle proximity notification system
In the following cases, the vehicle proximity
notification system may be difficult for sur-
rounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the vehicle proximity notification
system is installed on the front of the vehicle,
it may be more difficult to hear from the rear
of the vehicle compared to the front.
Vehicle proximity notification
system

752-1. Instrument cluster
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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-
Warning lights
(U.S.A.)
Brake system warning light*1
(  P.367)
(Red)
(Canada)
Brake system warning light*1
(  P.367)
Charging system warning
light
*2 (  P.367)
Output control warning light
*2
(  P.367, 377)
Low engine oil pressure warn-
ing light
*2 (  P.368)
High coolant temperature
warning light
*2 (  P.368)
(Yellow)
Brake system warning light*1
(  P.368)
(U.S.A.)
Malfunction indicator lamp*1
(  P.368)
(Canada)
Malfunction indicator lamp*1
(  P.368)
SRS warning light
*1 (  P.369)
(U.S.A.)
ABS warning light*1 ( P.369)
(Canada)
ABS warning light*1 ( P.369)
(Yellow)
Electric power steering sys-
tem warning light
*1 ( P.369)
(Red)
Electric power steering sys-
tem warning light
*1 ( P.369)
PCS warning light
*1 (  P.369)
(Orange)
LDA indicator*2 ( P.370)
(if equipped)
PKSB OFF indicator*1, 3
(  P.370)
Slip indicator light
*1 (  P.370)
Brake hold operated indica-
tor
*1, 3 (  P.370)
(U.S.A.)
Parking brake indicator*3
(  P.371)
(Canada)
Parking brake indicator*3
(  P.371)
Low fuel level warning light
(  P.371)
Driver’s and front passenger’s
seat belt reminder light
(  P.371)
Rear passengers’ seat belt
reminder light
*4 (  P.372)
Master warning light
*1
(  P.372)
Tire pressure warning light
*1
(  P.372)
Brake Override System/
Drive-Start Control warning
light
*2 (  P.373)

792-1. Instrument cluster
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Vehicle status information and indicators
When driving mode is in other than Sport mode ( P.248)
The units used on the meters may differ depending on the target region.
Engine coolant temperature gauge
Displays the engine coolant temperature
Hybrid System Indicator
Displays hybrid system outp ut or regeneration level (P.82)
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C). Low
outside temperature indicator comes on when the ambient temperature is 37°F (3°C) or
lower.
Background color of driving mode
Background color changes acco rding to the driving mode. (P.248)
•Sport mode: Red
•Eco mode: Blue
When in Normal mode, the background color is black.
Clock
Time displayed is linked to the analog clock on the instrument panel. (P.286)
Multi-information display
Presents the driver with a variety of vehicle data ( P.84)
Gauges and meters
The meters display various drive information.
Meter display
A
B
C
D
E
F

802-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_enDisplays warning messages in
case of a malfunction (P.376)
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Shift position and shift range
Displays the selected shift posi tion or selected shift range (P.173)
Odometer, trip meter and maintena nce required information display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset.
Trip meters “A” and “B” can be used to record and display different distances inde-
pendently.
Maintenance required information:
Displays the remaining distance until the engine oil should be changed.
• Displays the maintenance requ ired information when the power switch is ON mode.
• It can be reset on of the multi-information display. ( 
P.86)
When driving mode is in Sport mode (P.248)
The units used on the meters may differ depending on the target region.
Engine coolant temperature gauge
Displays the engine coolant temperature
Tachometer
Displays the engine speed in revolutions per minute
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F (50°C). Low
G
H
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A
B
C

812-1. Instrument cluster
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Vehicle status information and indicators
outside temperature indicator comes on when the ambient temperature is 37°F (3°C) or
lower.
Background color of driving mode
Background color changes acco rding to the driving mode. (P.248)
•Sport mode: Red
•Eco mode: Blue
When in Normal mode, the background color is black.
Clock
Time displayed is linked to the analog clock on the instrument panel. (P.286)
Multi-information display
Presents the driver with a variety of vehicle data ( P.84)
Displays warning messages in case of a malfunction (P.376)
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Shift position and shift range
Displays the selected shift posi tion or selected shift range (P.173)
Odometer, trip meter and maintena nce required information display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset.
Trip meters “A” and “B” can be used to record and display different distances inde-
pendently.
Maintenance required information:
Displays the remaining distance until the engine oil should be changed.
• Displays the maintenance requ ired information when the power switch is ON mode.
•It can be reset on
of the multi-information display. ( P.86)
D
E
F
G
H
I
J