2019 LEXUS NX300H stop start

691-3. Theft deterrent system
LEXUS NX300h Owners Manu-
al_USA_M78287_en
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For safety and security
1-3.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

711-3. Theft deterrent system
LEXUS NX300h Owners Manu-
al_USA_M78287_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.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

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

912-1. Instrument cluster
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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

1003-1. Key information
LEXUS NX300h Owners Manu-
al_USA_M78287_en
3-1.Key information
The following keys are provided with
the vehicle.
Electronic keys
• Operating the smart access system with push-button start ( 
P.120)
• Operating the wireless remote control function
Mechanical keys
Key number plate
Card key (electronic key) (if
equipped)
Operating the smart access system with
push-button start ( P.120)
■Card key (if equipped)
●The mechanical key that is stored inside
the card key should be used only if a
problem arises, such as when the card
key does not operate properly.
●If the battery cover is not installed and the
battery falls out or if the battery was
removed because the key got wet, rein-
stall the battery with the positive terminal
facing the Lexus emblem.
●The card key is not waterproof.
■When riding in an aircraft
When bringing an electronic key onto an
aircraft, make sure you do not press any
buttons on the electronic key while inside
the aircraft cabin. If you are carrying an
electronic key in your bag, etc., ensure that
the buttons are not likely to be pressed acci-
dentally. Pressing a button may cause the
electronic key to emit radio waves that
could interfere with the operation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
(The card key battery life is about a year
and a half.)
●If the battery becomes low, an alarm will
sound in the cabin wh en the hybrid sys-
tem stops.
●As the electronic key always receives
radio waves, the battery will become
depleted even if the electronic key is not
used. The following symptoms indicate
that the electronic key battery may be
depleted. Replace the battery when nec-
essary.
• The smart access system with push-but- ton start or the wireless remote control
does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious dete rioration, do not
leave the electronic key within 3 ft. (1 m)
of the following electrical appliances that
produce a magnetic field:
Keys
Key types
A
B
C
D

1013-1. Key information
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Before driving
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless
phones
• Induction cookers
• Table lamps
■Replacing the battery
 P.349
■Confirmation of the registered key
number
The number of keys already registered to
the vehicle can be confirmed. Ask your
Lexus dealer for details.
The electronic keys are equipped with
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to
strong shocks or bend them.
●Do not expose the keys to high tem-
peratures for long periods of time.
●Do not get the keys wet or wash them
in an ultrasonic washer, etc.
●Do not attach metallic or magnetic
materials to the keys or place the keys
close to such materials.
●Do not disassemb le the keys.
●Do not attach a sticker or anything else
to the surface of the electronic key.
●Do not place the keys near objects that
produce magnetic fields, such as TVs,
audio systems and induction cookers,
or medical electrical equipment, such
as low-frequency therapy equipment.
■Carrying the electronic key on your
person
Carry the electronic key 3.9 in. (10 cm)
or more away from electric appliances
that are turned on. Radio waves emitted
from electric applianc es within 3.9 in. (10
cm) of the electronic key may interfere
with the key, causing the key to not func-
tion properly.
■In case of a smart access system with
push-button start malfunction or
other key related problems
 P.389
■When an electronic key is lost
 P.388
■Handling the card key
●If the battery or card key terminals get
wet, the battery may corrode and the
card key may stop working.
If the key is dropped into water, or if
drinking water, etc., is spilled on the
key, immediately remove the battery
cover and wipe the battery and termi-
nals. (To remove the battery cover,
lightly grasp and pull it.) If the battery is
corroded, have your Lexus dealer
replace the battery.
●Do not crush the battery cover or use
a screwdriver to remove the battery
cover.
Forcibly removing the battery cover
may bend or damage the key.
●If the battery cover is frequently
removed, the battery cover may
become loose.
●When installing the battery, make sure
to check the direction of the battery.
Installing the battery in the wrong
direction may cause the battery to
deplete rapidly.
●The surface of the card key may be
damaged, or its coating may peel off in
the following situations:
• The card key is ca rried together with
hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical
pencil.
• The surface of the card key is wiped with thinner or benzene.
Wireless remote control

1063-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manu-
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■Door lock buzzer
If an attempt to lock the doors is made when
a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the
door to stop the buzzer, and lock the vehi-
cle once more.
■Setting the alarm
Locking the doors will set the alarm system.
(  P.71)
■Conditions affecting the operation of
the smart access system with push-but-
ton start or wireless remote control
 P.121
■If the smart access system with push-
button start or the wireless remote con-
trol does not operate properly
●Use the mechanical key to lock and
unlock the doors. ( P.389)
●Replace the key battery with a new one if
it is depleted.
■Customization
Settings (e.g. unloc king function using a
key) can be changed. (Customizable fea-
tures:  P.421)
■Using the door lock switch
1 Locks all the doors
2 Unlocks all the doors
WARNING
■To prevent an accident
Observe the following precautions while
driving the vehicle.
Failure to do so may result in a door
opening and an occupant falling out,
resulting in death or serious injury.
●Ensure that all doors are properly
closed and locked.
●Do not pull the inside handle of the
doors while driving.
Be especially care ful for the front
doors, as the door s may be opened
even if the inside lock buttons are in
locked position.
●Set the rear door ch ild-protector locks
when children are seated in the rear
seats.
■When opening or closing a door
Check the surroundings of the vehicle
such as whether the vehicle is on an
incline, whether there is enough space
for a door to open and whether a strong
wind is blowing. When opening or clos-
ing the door, hold the door handle tightly
to prepare for any unpredictable move-
ment.
■When using the wireless remote con-
trol and operating the power windows
or moon roof (if equipped)
Operate the power window or moon
roof after checking to make sure that
there is no possibility of any passenger
having any of their body parts caught in
the window or moon roof. Also do not let
a child operate window by the mechani-
cal key. It is possible for children and
other passengers to get caught in the
power window or moon roof.
Unlocking and locking the doors
from the inside

1153-2. Opening, closing and locking the doors
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Before driving
2 Move the lever.
■Customization
Settings (e.g. back door automatic open
and stop position) can be changed. (Cus-
tomizable features: P.421)
WARNING
■Back door closer
●In the event that the back door is left
slightly open, the back door closer will
automatically close it to the fully closed
position. It takes several seconds
before the back door closer begins to
operate. Be careful not to catch fingers
or anything else in the back door, as
this may cause bone fractures or other
serious injuries.
●Use caution when using the back door
closer as it still operates when the
power back door system is canceled.
■Power back door
Observe the following precautions when
operating the power back door.
Failure to do so may cause death or seri-
ous injury.
●Check the safety of the surrounding
area to make sure there are no obsta-
cles or anything that could cause any
of your belongings to get caught.
●If anyone is in the vicinity, make sure
they are safe and let them know that
the back door is about to open or
close.
●If the power back door system is
turned off with the main switch while
the back door is operating automati-
cally, the automatic operation is
stopped. The back door then has to be
operated manually. Take extra care
when on an incline, as the back door
may open or close unexpectedly.
●If the operating conditions of the
power back door are no longer met, a
buzzer may sound and the back door
may stop opening or closing. The back
door then has to be operated manu-
ally. Take extra care when on an incline,
as the back door may open or close
abruptly.
●On an incline, the back door may sud-
denly shut after it opens. Make sure
the back door is fully open and secure.
●In the following situations, the power
back door may detect an abnormality
and automatic operation may be
stopped. In this case, the back door
has to be operated manually. Take
extra care when on an incline, as the
back door may open or close abruptly.
• When the back door contacts an obstacle
• When the 12-volt battery voltage sud- denly drops, such as when the power
switch is turned to power ON mode or
the hybrid system is started during
automatic operation