2020 LEXUS NX300h battery

731-4. Hybrid system
LEXUS NX300h Owners Manual_USA_M78530_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-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

771-5. Theft deterrent system
LEXUS NX300h Owners Manual_USA_M78530_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.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

781-5. Theft deterrent system
LEXUS NX300h Owners Manual_USA_M78530_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.

872-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_en
2
Vehicle status information and indicators
■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.93)
■Liquid crystal display
Small spots or light sp ots may appear on the
display. This phenomenon is characteristic
of liquid crystal disp lays, and there is no
problem continuing to use the display.
■Customization
The meter display can be customized on
A
B
C
D

912-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_en
2
Vehicle status information and indicators
■Vehicle sway warning
Detects the sway of the vehicle within a
lane, which is often associated with a
decrease in the driver’s attention level,
and displays the decrease in attention
using a bar display.
The shorter the bar length, the more
the driver may need to rest.
This display is a part of the LTA (Lane
Tracing Assist) system or LDA (Lane
Departure Alert with steering control)
system. The display is enabled when
the operating conditions of the vehicle
sway warning are met. ( P.221, 230)
■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 se lection of an audio
source or track on the display using the
meter control switches.
Select to display the operational status
of the following systems:
 LTA (Lane Tracing Assist) ( P.217)
 LDA (Lane Departure Alert with
steering control) ( P.226)
 Dynamic radar cruise control with
full-speed range ( P.236)
 RSA (Road Sign Assist) ( P. 234)
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.396)
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.
Navigation system-linked dis-
play (if equipped)
Audio system-linked display
Driving assist system information
Warning message display
Settings display

942-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_enSelect 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.247)
*: If equipped
Head-up display
Display brightness will change automati-
cally according to the brightness of the sur-
rounding area.
Display position adjustment switch
Display brightness adjustment
switch
Display brightness can be adjusted to the
desired level.
“HUD” button
“DISP” button
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, exhaust 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)
Head-up display*
The head-up display can be used to
project vehicle speed and other
information onto the windshield.
System components
A
B
C
D
E

962-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_en
■Head-up display
●The head-up display may seem dark and
hard to see when viewed through sun-
glasses, especially polarized sunglasses.
Adjust the brightness of the head-up dis-
play or remove your sunglasses.
●When the head-up display is turned off, it
will not display anything until it is turned
on again.
■Adjusting the display position
1 Higher
WARNING
■Before using the head-up display
Check that the position and brightness of
the head-up display image does not
interfere with safe driving. Incorrect
adjustment of the image’s position or
brightness may obstruct the driver’s view
and lead to an accident, resulting in
death or serious injury.
■Caution for changing settings of the
head-up display
As the hybrid system needs to be operat-
ing while changing th e settings of the
head-up display, ensure that the vehicle
is parked in a place with adequate venti-
lation. In a closed area such as a garage,
exhaust gases includ ing harmful carbon
monoxide (CO) may collect and enter
the vehicle. This may lead to death or a
serious health hazard.
NOTICE
■To prevent damage to components
●Do not place any drinks near the head-
up display projector. If the projector
gets wet, electrical malfunctions may
result.
●Do not place anything on or put stick-
ers onto the head-up display projector.
Doing so could interrupt head-up dis-
play indications.
●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 see

982-1. Instrument cluster
LEXUS NX300h Owners Manual_USA_M78530_en
Select to display/non-display the fol-
lowing items:
• Route guidance to destination
• Driving assist system information
• Audio system operation status
•Lane display
When customizing vehicle features,
ensure that the vehicle is parked in a
safe place with the shift lever in P and
the parking brake set.
1Until the screen changes, continue
pressing the “DISP” button, and it
will repeat until the item desired to
be changed is displayed.
Customization can be performed when
the head-up display is on.
2 Press the “DISP” button to switch
between on and off.
On and off will be switched between each
time the button is pressed. If the button is left alone without being
operated for a short time, setting will be
finished automatically.
■When the 12-volt battery is discon-
nected
The customize settings of the head-up dis-
play will be reset.
Display customization