2018 LEXUS NX300h warning

1814-2. Driving procedures
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving the instructions. ■
If the brake hold operated indicator
flashes
→ P.368 *
: If equipped
1 Louder
2 Lower
The indicator comes on when the ASC
system is on.
When the dial is turned to the lowest
volume, the ASC system will be turned
off and the indicator will go off.
■
Operating conditions
When the driving mode select switch is not WARNING■
When the vehicle is on a steep incline
When using the brake hold system on a
steep incline, exercise caution. The brake
hold function may not hold the vehicle in
such a situation. ■
When stopped on a slippery road
The system cannot stop the vehicle when
the gripping ability of the tires has been
exceeded. Do not use the system when
stopped on a slippery road.
NOTICE■
When parking the vehicle
The brake hold system is not designed
for use when parking the vehicle for a
long period of time. Turning the power
switch off while the system is holding the
brake may release the brake, which
would cause the vehicle to move. When
operating the power switch, depress the
brake pedal, shift the shift lever to P and
set the parking brake. ASC (Active Sound Con-
trol) *
The ASC system is an electronic
sound system that generates
engine sound, conveying the
kinetic situations of the vehicle’s
acceleration and deceleration to
the driver through the speakers
inside the instrument panel.
The vehicle’s response to the
driver’s acceleration behavior and
shift operations are also conveyed
in sound.
When sport mode is selected, the
sound conveyed to the driver will be
louder.
Controlling volume

1874-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving and tail lights of oncoming and preceding
vehicles
• The movement and direction of oncom-
ing and preceding vehicles
• When a oncoming or preceding vehicle
only has operational lights on one side
• When a oncoming or preceding vehicle
is a two-wheeled vehicle
• The condition of the road (gradient,
curve, condition of th e road surface, etc.)
• The number of passengers and amount of
luggage●
High beam may be turned on or off when
unexpected by the driver.●
In the situations below, the system may
not be able to correctly detect the sur-
rounding brightness levels, and may flash
or expose nearby pedestrians to the high
beam. Therefore, you should consider
turning the high beams on or off manually
rather than relying on the Automatic
High Beam system.
• In bad weather (rain, snow, fog, sand-
storms, etc.)
• The windshield is obscured by fog, mist,
ice, dirt, etc.
• The windshield is cracked or damaged.
• The camera sensor is deformed or dirty.
• The camera sensor temperature is
extremely high.
• Surrounding brightness levels are equal
to those of headlights, tail lights or fog
lights.
• Vehicles ahead have headlights or tail
lights that are either switched off, dirty,
are changing color, or are not aimed
properly.
• When driving through an area of inter-
mittently changing brightness and dark-
ness.
• When frequently and repeatedly driving
ascending/descending roads, or roads
with rough, bumpy or uneven surfaces
(such as stone-paved roads, gravel
tracks, etc.).
• When frequently and repeatedly taking
curves or driving on a winding road.
• There is a highly re flective object ahead
of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly
reflective, such as a container on a truck.
• The vehicle’s headlights are damaged or
dirty. • The vehicle is listing or titling, due to a flat
tire, a trailer being towed, etc.
• The driver believes that the high beam
may be causing problems or distress to
other drivers or pedestrians nearby.
WARNING■
Limitations of the Automatic High
Beam
Do not rely on the Automatic High
Beam. Always drive safely, taking care to
observe your surroundings and turning
high beam on or off manually if neces-
sary.
NOTICE■
Notes when using the Automatic
High Beam system
Observe the following to ensure that the
Automatic High Beam functions cor-
rectly. ●
Do not touch the camera sensor.
●
Do not subject the camera sensor to a
strong impact.
●
Do not disassemble the camera sen-
sor.
●
Do not spill liquids onto the camera
sensor.
●
Do not apply window tinting or stickers
to the camera sensor or the area of
windshield near the camera sensor.
●
Do not place items on the dashboard.
There is a possibility that the camera
sensor will mistake items reflected in
the windshield for streetlights, the
headlights of other vehicles, etc.

1934-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving strikes the windshield, or if bugs, etc. are
present on the windshield.
●
If the wiper switch is turned to the
“AUTO” position while the power switch
is in ON mode, the wipers will operate
once to show that AUTO mode is acti-
vated.●
If the temperature of the raindrop sensor
is 194°F (90°C) or higher, or 5°F (-15°C)
or lower, automatic operation may not
occur. In this case, operate the wipers in
any mode other than AUTO mode.■
If no windshield washer fluid sprays
Check that the washer nozzles are not
blocked, if there is washer fluid in the
washer fluid tank.
WARNING■
Caution regarding the use of wind-
shield wipers in AUTO mode (vehi-
cles with rain-sen sing windshield
wipers)
The windshield wipers may operate
unexpectedly if the sensor is touched or
the windshield is subject to vibration in
AUTO mode. Take care that your fingers,
etc. do not become caught in the wind-
shield wipers.
■
Caution regarding the use of washer
fluid
When it is cold, do not use the washer
fluid until the windshield becomes warm.
The fluid may freeze on the windshield
and cause low visibility. This may lead to
an accident, resulting in death or serious
injury. NOTICE■
When the windshield is dry
Do not use the wipers, as they may dam-
age the windshield. ■
When the washer fluid tank is empty
Do not operate the switch continually as
the washer fluid pump may overheat. ■
When a nozzle becomes blocked
In this case, contact your Lexus dealer.
Do not try to clear it with a pin or other
object. The nozzle will be damaged. ■
To prevent 12-volt battery discharge
Do not leave the wipers on longer than
necessary when the hy brid system is off.

196 4-4. Refueling
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4-4.Refueling
 Turn the power switch off and
ensure that all the doors and win-
dows are closed.
 Confirm the type of fuel. ■
Fuel types
→ P.408■
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi-
cle has a fuel tank opening that only accom-
modates the special nozzle on unleaded
fuel pumps.
1 With the doors unlocked, press the
center of the rear edge of the fuel
filler door. Push inward and take your hand away to
slightly open the fuel filler door. Then open Opening the fuel tank cap
Before refueling the vehicle
WARNING■
When refueling the vehicle
Observe the following precautions while
refueling the vehicle. Failure to do so may
result in death or serious injury. ●
After exiting the ve hicle and before
opening the fuel door, touch an
unpainted metal surface to discharge
any static electricity. It is important to
discharge static electricity before refu-
eling because sparks resulting from
static electricity can cause fuel vapors
to ignite while refueling.
●
Always hold the grips on the fuel tank
cap and turn it slowly to remove it.
A whooshing sound may be heard
when the fuel tank cap is loosened.
Wait until the sound cannot be heard
before fully removing the cap. In hot
weather, pressurized fuel may spray
out of the filler neck and cause injury.
●
Do not allow anyone that has not dis-
charged static electricity from their
body to come close to an open fuel
tank. ●
Do not inhale vaporized fuel.
Fuel contains substances that are
harmful if inhaled. ●
Do not smoke while refueling the vehi-
cle.
Doing so may cause the fuel to ignite
and cause a fire. ●
Do not return to the vehicle or touch
any person or object that is statically
charged. This may cause static elec-
tricity to build up, re sulting in a possible
ignition hazard. ■
When refueling
Observe the following precautions to
prevent fuel overflowing from the fuel
tank: ●
Securely insert the fuel nozzle into the
fuel filler neck. ●
Stop filling the tank after the fuel noz-
zle automatically clicks off. ●
Do not top off the fuel tank.
NOTICE■
Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such
as causing the emission control system to
operate abnormally, damaging fuel sys-
tem components or the vehicle’s painted
surface.
Opening the fuel tank cap

1974-4. Refueling
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving the door fully by hand.
2 Turn the fuel tank cap slowly to
open and put it into the holder on
the fuel filler door.
■
When the fuel filler door cannot be
opened
→ P.387
1 After refueling, turn the fuel tank
cap until you hear a click. Once the
cap is released, it will turn slightly in
the opposite direction. 2 Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door. When you lock the doors, the fuel filler
door will lock also.
■
Fuel filler door lock condition
The fuel filler door may not be locked even
when the vehicle’s doors are locked in the
following conditions: ●
When operating the door lock button
inside the vehicle ●
When the automatic door locking system
is operated ●
When the fuel filler door is closed after
the vehicle’s doors are locked
Closing the fuel tank cap WARNING■
When replacing the fuel tank cap
Do not use anything but a genuine Lexus
fuel tank cap designed for your vehicle.
Doing so may cause a fire or other inci-
dent which may result in death or serious
injury.

198 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4-5.Using the driving support systems
■
PCS (Pre-Collision System)
→ P.203 ■
LDA (Lane Departure Alert with
steering control)
→ P.210 ■
Automatic High Beam
→ P.186 ■
Dynamic radar cruise control with
full-speed range
→ P.217
The pre-collision system is equipped with a sophisticated computer that will
record certain data, such as:
• Accelerator status
•Brake status
• Vehicle speed
• Operation status of the pre-collision
system functions
• Information (such as the distance
and relative speed between your
vehicle and the vehicle ahead or
other objects)
• Images from the camera sensor
(available only when the pre-colli-
sion braking function or the pre-col-
lision brake assist function was
operating)
The pre-collision system does not
record conversations, sounds or
images of the inside of the vehicle.
 Data usage Lexus may use the data recorded in this
computer 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
 Recorded images can be erased
using a specialized device.
The image recording function can be dis-Lexus Safety System+ The Lexus Safety System+ consists
of the following drive assist systems
and contributes to a safe and com-
fortable driving experience:
Drive assist systems of Lexus
Safety System+
WARNING■
Lexus Safety System+
The Lexus Safety System+ is designed to
operate under the assumption that the
driver will drive safely, and is designed to
help reduce the impact to the occupants
and the vehicle in the case of a collision
or assist the driver in normal driving con-
ditions.
As there is a limit to the degree of recog-
nition accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surro undings and driving
safely.
Vehicle data recording

1994-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving abled. However, if the function is disabled,
data from when the pre-collision system
operates will not be available.
Two types of sensors, located behind
the front grille and windshield, detect
information necessary to operate the
drive assist systems.
Radar sensor
Camera sensorSensors
WARNING■
To avoid malfunction of the radar sen-
sor
Observe the following precautions.
Otherwise, the radar sensor may not
operate properly, possibly leading to an
accident resulting in death or serious
injury. A
B ●
Keep the radar sensor and front grille
emblem clean at all times.
Radar sensor
Front grille emblem
If the front of the rada r sensor or the front
or back of the front grille emblem is dirty
or covered with water droplets, snow,
etc., clean it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not
mark or damage them. ●
Do not attach accessories, stickers
(including transparent stickers) or
other items to the radar sensor, front
grille emblem or surrounding area. ●
Do not subject the radar sensor or sur-
rounding area to a strong impact.
If the radar sensor, front grille, or front
bumper has been subjected to a
strong impact, have the vehicle
inspected by your Lexus dealer.
●
Do not disassemble the radar sensor.
●
Do not modify or paint the radar sen-
sor, front grille emblem or surrounding
area.
●
If the radar sensor, front grille, or front
bumper needs to be removed and
installed, or replaced, contact your
Lexus dealer.
■
To avoid malfunction of the camera
sensor
Observe the following precautions.
Otherwise, the camera sensor may not
operate properly, possibly leading to an
accident resulting in death or serious
injury. A
B

200 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U WARNING●
Keep the windshield clean at all times.
• If the windshield is dirty or covered
with an oily film, water droplets, snow,
etc., clear the windshield.
• If a glass coating agent is applied to the
windshield, it will still be necessary to
use the windshield wipers to remove
water droplets, etc. from the area of
the windshield in front of the camera
sensor.
• If the inner side of the windshield
where the camera sensor is installed is
dirty, contact your Lexus dealer.●
Do not attach objects, such as stickers,
transparent stickers, etc., and so forth,
to the outer side of the windshield in
front of the camera sensor (shaded
area in the illustration).
From the top of the windshield to
approximately 0.4 in. (1 cm) below
the bottom of the camera sensor
Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. (10 cm) to the
right and left from the center of the
camera sensor)
●
If the part of the windshield in front of
the camera sensor is fogged up or
covered with condensation or ice, use
the windshield defogger to remove the
fog, condensation or ice. ( → P.269)A
B ●
If water droplets cannot be properly
removed from the area of the wind-
shield in front of the camera sensor by
the windshield wipers, replace the
wiper insert or wiper blade.
If the wiper inserts or wiper blades
need to be replaced, contact your
Lexus dealer. ●
Do not attach window tinting to the
windshield. ●
Replace the windshield if it is damaged
or cracked.
If the windshield ne eds to be replaced,
contact your Lexus dealer. ●
Do not get the camera sensor wet. ●
Do not allow bright lights to shine into
the camera sensor. ●
Do not dirty or damage the camera
sensor.
When cleaning the inside of the wind-
shield, do not allow glass cleaner to
contact the lens. Also, do not touch the
lens.
If the lens is dirty or damaged, contact
your Lexus dealer. ●
Do not subject the camera sensor to a
strong impact.
●
Do not change the installation position
or direction of the camera sensor or
remove it.
●
Do not disassemble the camera sen-
sor.
●
Do not modify any components of the
vehicle around the camera sensor
(inside rear view mirror, etc.) or ceiling.
●
Do not attach any accessories that
may obstruct the camera sensor to the
hood, front grille or front bumper.
Contact your Lexus dealer for details.
●
If a surfboard or other long object is to
be mounted on the roof, make sure
that it will not obstruct the camera sen-
sor.