2020 LEXUS NX300h maintenance

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LEXUS NX300h Owners Manual_USA_M78530_en
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before drivingOpening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
DrivingOperations and advice which are necessary for driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat belt,
SRS airbag and headlight aim instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

4TABLE OF CONTENTS
LEXUS NX300h Owners Manual_USA_M78530_en
Luggage compartment features........................................................... 306
5-5. Using the other interior features Other interior features ............... 310
Garage door opener.................. 320
Compass.......................................... 326
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 330
Cleaning and protecting the vehi- cle interior .................................... 333
6-2. Maintenance Maintenance requirements ..... 337
General maintenance ................ 338
Emission inspection and mainte- nance (I/M) programs ............ 340
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 342
Hood.................................................. 344
Positioning a floor jack............... 344
Engine compartment.................. 346
12-volt battery................................ 352
Tires ................................................... 355
Tire inflation pressure ................. 363
Wheels.............................................. 365
Air conditioning filter..................367
Electronic key battery ................ 368
Checking and replacing fuses 370
Headlight aim................................. 372
Light bulbs ....................................... 3747-1. Essential information
Emergency flashers .................... 378
If your vehicle has to be stopped in an emergency ............................ 378
If the vehicle is trapped in rising water .............................................. 379
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 381
If you think something is wrong .......................................................... 384
If a warning light turns on or a warn- ing buzzer sounds..................... 386
If a warning messa ge is displayed
.......................................................... 396
If you have a flat tire .................... 400
If the hybrid syst em will not start
.......................................................... 407
If you lose your keys.................... 409
If the fuel filler door cannot be opened .......................................... 409
If the electronic key does not oper- ate properly .................................. 410
If the 12-volt battery is discharged ............................................................ 412
If your vehicle overheats ............ 416
If the vehicle becomes stuck .... 419
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................................. 422
Fuel information .

........................... 430
Tire information ............................ 432
6Maintenance and care
7When trouble arises
8Vehicle specifications

661-3. Lexus Enform
LEXUS NX300h Owners Manual_USA_M78530_en
*:If equipped
■Availability of service
Lexus Enform Service Connect is not avail-
able in some countries or areas.
■Lexus Enform Serv ice Connect Infor-
mation
Availability of functions of the Lexus Enform
Service Connect is dependent on network
reception level.
■Safety information for Lexus Enform
Service Connect
Refer to the safety information for Safety
Connect: P.64
Lexus Enform Service Con-
nect*
Lexus Enform Service Connect
uses embedded telematics hard-
ware to collect an d transmit vehicle
data that allows Lexus to provide:
 Vehicle Health Report (VHR)
(Safety Recalls, Service Cam-
paigns, Current Vehicle Alerts,
Required Maintenance, and Vehi-
cle Condition Status)
 Maintenance Notifications
 Vehicle Alert Notifications
For details about this service and
how to register, refer to
http://www.lexus.com/enform/
.
The Lexus Enform Service Con-
nect is achieved by using a Data
Communication Module (DCM)
built in the vehicle.

691-4. Hybrid system
LEXUS NX300h Owners Manual_USA_M78530_en
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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.441)
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

731-4. Hybrid system
LEXUS NX300h Owners Manual_USA_M78530_en
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For safety and security
Air intake vents
Air discharge vents When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks the
high voltage current and stops the fuel
pump to minimize the risk of electrocu-
tion and fuel leakage. If the emergency
shut off system activates, your vehicle
will not restart. To restart the hybrid
system, contact your Lexus dealer.
A message is automatically displayed
when a malfunction occurs in the
hybrid system or an improper opera-
tion is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
NOTICE
■Hybrid battery (traction battery) air
intake and discharge vents
●Do not place objects
that will block the
air intake vents. The hybrid battery
(traction battery) may have a reduc-
tion in hybrid battery (traction battery)
output as well as be damaged.
●Clean the air intake and discharge
vents regularly to prevent the hybrid
battery (traction battery) from over-
heating.
●Do not get water or foreign materials
in either the air intake and discharge
vents as this may cause a short circuit
and damage the hybrid battery (trac-
tion battery).
A
B
●If “Maintenance required for Traction
battery cooling parts See owner’s
manual” is shown on the multi-informa-
tion display, clean the air intake vents
(  P. 335). If the me ssage is still dis-
played after cleaning the air intake
vents, have the vehicle inspected by
your Lexus dealer.
●A filter is installed to the air intake vent.
When the filter re mains noticeably
dirty even after cleaning the air intake
vent, filter cleaning or replacement is
recommended. For information
regarding filter cleaning or replace-
ment, contact your Lexus dealer.
Emergency shut off system
Hybrid warning message

751-5. Theft deterrent system
LEXUS NX300h Owners Manual_USA_M78530_en
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For safety and security
1-5.Theft deterrent system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to ACCESSORY or ON mode to indi-
cate that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free type
immobilizer system.
■Conditions that may cause the system to
malfunction
●If the grip portion of the key is in contact
with a metallic object
●If the key is in close proximity to or touch-
ing a key registered to the security sys-
tem (key with a built-in transponder chip)
of another vehicle
■Certification for the immobilizer system
For vehicles sold in the U.S.A.
Immobilizer system
The vehicle’s keys have built-in tran-
sponder chips that prevent the
hybrid system from starting if a key
has not been previously registered
in the vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all
vehicle thefts.
Operating the system

771-5. Theft deterrent system
LEXUS NX300h Owners Manual_USA_M78530_en
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For safety and security
■Items to check before locking the
vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make sure
of the following:
 Nobody is in the vehicle.
 The windows and moon roof (if
equipped) are closed before the
alarm is set.
 No valuables or other personal
items are left in the vehicle.
■Setting
Close the doors and hood, and lock all
the doors. The system will be set auto-
matically after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Canceling or stopping
Do one of the following to deactivate
or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACCES-
SORY or ON mode, or start the
hybrid system. (The alarm will be
deactivated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free type
alarm system.
■Triggering of the alarm
The alarm may be triggered in the following
situations:
(Stopping the alarm deactivates the alarm
system.)
●A person inside the vehicle opens a door
or hood, or unlocks the vehicle using an
inside lock button.
●The 12-volt battery is recharged or
replaced when the vehicle is locked.
(  P.414)
Alarm
The alarm uses light and sound to
give an alert when an intrusion is
detected.
The alarm is triggered in the follow-
ing situations when the alarm is set:
 A locked door is unlocked or
opened in any way other than
using the entry function, wireless
remote control or mechanical
key. (The doors will lock again
automatically.)
 The hood is opened.
Setting/canceling/stopping the
alarm system

852-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_en
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Vehicle status information and indicators
Presents the driver with a variety of vehicle data ( P.89)
Displays warning messages in case of a malfunction (P.396)
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.179)
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.91)
When driving mode is in Sport mode ( P.269)
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
G
H
I
J
A
B