2019 LEXUS NX300H battery

661-2. Hybrid system
LEXUS NX300h Owners Manu-
al_USA_M78287_en
The cooling air intake and discharge
vents for the hybrid battery (traction
battery) are located under the rear
seats and between the rear seats and
deck board, respectively. If the air
intake vents are blocked, it could lead
to a reduction in hybrid battery (trac-
tion battery) output.
The hybrid battery (traction battery) out-
put will not be reduced, even if the space
between the upper part of the air dis-
charge vents on the back of the rear seat
and deck board is blocked with luggage,
etc.
WARNING
●If your vehicle needs to be towed, do
so with four wheels raised. If the
wheels connected to the electric
motor (traction motor) are on the
ground when towing, the motor may
continue to generate electricity. This
may cause a fire. ( P.362)
●Carefully inspect the ground under the
vehicle. If you find that liquid has
leaked onto the ground, the fuel sys-
tem may have been damaged. Leave
the vehicle as soon as possible.
■Hybrid battery (traction battery)
●Never resell, hand over or modify the
hybrid battery. To prevent accidents,
hybrid batteries that have been
removed from a disposed vehicle are
collected through Lexus dealers. Do
not dispose of the battery yourself.
Unless the battery is properly collected,
the following may occur, resulting in
death or serious injury:
• The hybrid battery may be illegally dis- posed of or dumped, and it is hazard-
ous to the environment or someone
may touch a high voltage part, result-
ing in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid vehi-
cle. If the hybrid battery is used outside
of your vehicle or modified in any way,
accidents such as electric shock, heat
generation, smoke generation, an
explosion and electrolyte leakage may
occur.
When reselling or handing over your
vehicle, the possibility of an accident is
extremely high because the person
receiving the vehicle may not be aware
of these dangers.
●If your vehicle is disposed of without
the hybrid battery having been
removed, there is a danger of serious
electric shock if hi gh voltage parts,
cables and their connectors are
touched. In the event that your vehicle
must be disposed of, the hybrid battery
must be disposed of by your Lexus
dealer or a qualified service shop. If
the hybrid battery is not disposed of
properly, it may cause electric shock
that can result in death or serious
injury.
NOTICE
■Hybrid battery (traction battery)
Do not carry large amounts of water
such as water cooler bottles in the vehi-
cle. If water spills onto the hybrid battery
(traction battery), the battery may be
damaged.
Have the vehicle inspected by your
Lexus dealer.
Hybrid battery (traction bat-
tery) air intake and discharge
vents

671-2. Hybrid system
LEXUS NX300h Owners Manu-
al_USA_M78287_en
1
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-infor-
mation display, clean the air intake
vents ( P. 316). If the message is still
displayed 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

711-3. Theft deterrent system
LEXUS NX300h Owners Manu-
al_USA_M78287_en
1
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.394)
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

721-3. Theft deterrent system
LEXUS NX300h Owners Manu-
al_USA_M78287_en
■Alarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle
unlocks the door and the alarm is acti-
vated.
●While the alarm is activated, a person
remaining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt
battery.
NOTICE
■To ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.

822-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_en
■Operating condition
The power switch is in ON mode.
■Hybrid System Indicator
Power area
Shows that an Eco-friendly driving
range is being exceeded (during full
power driving etc.)
Eco area
Shows that the vehicle is being driven in
an Eco-friendly manner.
Hybrid Eco area
Shows that gasoline engine power is not
being used very often.
The gasoline engine will automatically
stop and restart under various condi-
tions.
Charge area
Shows that energy is being recovered
via the regenerative brake.
●Hybrid System Indicator is displayed
when the driving mode is in other than
the Sport mode.
●By keeping the indicator needle within
Eco area, more Eco-friendly driving can
be achieved.
●Charge area indicates regeneration* sta- tus. Regenerated energy will be used to
charge the hybrid battery (traction bat-
tery).
*: When used in this manual, “regeneration”
refers to the conversion of energy cre-
ated by the movement of the vehicle into
electrical energy.
■Tachometer
Hybrid System Indicator switches to the
tachometer when drivin g mode is in Sport
mode. The settings of the tachometer dis-
play can be changed on the multi-informa-
tion display.
■Engine speed
On hybrid vehicles, engine speed is pre-
cisely controlled in order to help improve
fuel efficiency and reduce exhaust emis-
sions, etc.
There are times when the engine speed that
is displayed may differ even when vehicle
operation and driving conditions are the
same.
■Outside temperature display
●In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change.
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system
may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Pop-up display
In some situations, a pop-up display will be
temporarily displayed on the multi-informa-
tion display or the odometer/trip meter/
maintenance required information screen.
The pop-up display function can be set on/
off. ( P.87)
■Liquid crystal display
Small spots or light sp ots may appear on the
display. This phenomen on is characteristic
of liquid crystal disp lays, and there is no
problem continuing to use the display.
A
B
C
D

862-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_en
the operating conditions of the vehicle
sway warning are met. (P.210)
■Display off
A blank screen is displayed.
■Tire inflation pressure
●It may take a few minutes to display the
tire inflation pressure after the power
switch is turned to ON mode. It may also
take a few minutes to display the tire infla-
tion pressure after inflation pressure has
been adjusted.
●“---” may be displayed if the tire informa-
tion cannot be determined due to unfa-
vorable radio wave conditions.
●Tire inflation pressure changes with tem-
perature. The displayed values may also
be different from the values measured
using a tire pressure gauge.
■When disconnecting and reconnecting
12-volt battery terminals
The drive information will be reset.
Select to display the following naviga-
tion system-linked information.
 Route guidance
 Compass display (heading-up dis-
play)
Select to enable selection of an audio
source or track on the display using the
meter control switches.
Select to display the operational status
of the following systems: 
LDA (Lane Departure Alert with
steering control) ( P.209)
 Dynamic radar cruise control with
full-speed range ( P.217)
The displayed icon changes depending
on the system used.
Select to display warning messages
and measures to be taken if a malfunc-
tion is detected. ( P.376)
The settings of the following items can
be changed using the meter control
switches.
For functions that can be enabled or
disabled, the function switches
between on and off each time is
pressed.■LDA (Lane Departure Alert
with steering control) ( P.209)
Select to set up the following items.
 Steering Assist
Select to enable/dis able steering wheel
assistance.
 Alert
Select to set a vibrator or buzzer as the
notification method used to warn the
driver.
Alert sensitivity
Select to set the warning sensitivity.
Sway warning
Select to enable/disable the vehicle sway
Navigation system-linked dis-
play (if equipped)
Audio system-linked display
Driving assist system information
Warning message display
Settings display

882-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_enDisplays a procedure to register a desired
screen to
.
You can register 1 screen as a shortcut,
which can be displayed by pressing
.
 Drive information screen ( P.85)
Select to choose betwee n 2 items that will
be displayed on each drive information
screen (“
Drive info 1”, “Drive info 2” and
“Drive info 3
”) respectively.
 Pop-up display ( P.82)
Select to set the foll owing pop-up displays,
which may appear in some situations, on/
off.
• Intersection guidance display of the nav- igation system-linked system
• Incoming call display of the hands-free phone system
• Instrument panel brightness adjustment display
 Accent color
Select to change the accent colors on the
screen, such as the cursor color.
Tachometer settings
Select to set the display of the tachometer
or Hybrid System Indicator to automati-
cally change according to the driving
mode or static.
Initialization
Select to reset the me ter display settings.
■Suspension of the settings display
In the following situations, the settings dis-
play using the meter control switches will be
suspended.
●When a warning message appears on the
multi-information display
●When the vehicle begins to move
Automatically displayed when the sys-
tem is used. ( P.227)
WARNING
■Cautions during setting up the dis-
play
As the hybrid system needs to be operat-
ing during setting up the display, ensure
that the vehicle is parked in a place with
adequate ventilation. In a closed area
such as a garage, ex haust gases includ-
ing harmful carbon monoxide (CO) may
collect and enter the vehicle. This may
lead to death or a serious health hazard.
NOTICE
■During setting up the display
To prevent 12-volt battery discharge,
ensure that the hybrid system is operat-
ing while setting up the display features.
Intuitive parking assist (if
equipped)

912-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_en
2
Vehicle status information and indicators
■Adjusting the display position
1 Higher
2 Lower
■Setting the brightness
The brightness of the display is auto-
matically adjusted in accordance with
the brightness of the surrounding envi-
ronment. However, the brightness can
also be manually ad justed in 9 stages. 1
Brighter
2 Darker
Charge area
Shows regenerative charging.
Hybrid Eco area
Shows that gasoline en gine power is not
being used very often.
The gasoline engine will automatically stop
and restart under various conditions.
Eco area
Shows that the vehicle is being driven in an
Eco-friendly manner.
Power area
Shows that an Eco-frie ndly driving range is
being exceeded (during full power driving,
etc.)
NOTICE
●Do not touch the inside of the head-up
display projector or thrust sharp edges
or the like into the projector.
Doing so could cause mechanical mal-
functions.
■When changing the settings of the
head-up display
To prevent 12-volt battery discharge,
ensure that the hybrid system is operat-
ing while changing th e settings of the
head-up display.
Making the display easier to seeHybrid System Indicator
A
B
C
D