2018 LEXUS NX300h sensor

184 4-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
AUTO mode can be used when
The power switch is in ON mode. ■
Daytime running light system●
The daytime running lights illuminate
using the same lights as the parking lights
and illuminate brighter than the parking
lights.●
To make your vehicle more visible to
other drivers during daytime driving, the
daytime running lights turn on automati-
cally when all of the following conditions
are met. (The daytime running lights are
not designed for use at night.)
• The hybrid system is started
• The parking brake is released
• The headlight switch is in the (type
B), or “AUTO” *
position*
: When the surroundings are bright
The daytime running lights remain on after
they illuminate, even if the parking brake is
set again. ●
For the U.S.A.: Dayt ime running lights
can be turned off by operating the switch.●
Compared to turning on the headlights,
the daytime running light system offers
greater durability and consumes less
electricity, so it can help improve fuel●
If a turn signal light is in use, the daytime
running light, on the same side, is turned
off. For emergency flashers, both are
turned off.■
Headlight control sensor
The sensor may not function properly if an
object is placed on th e sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detect-
ing the level of ambient light and may cause
the automatic headlight system to malfunc-
tion. ■
Automatic light off system ●
When the headlights come on: The head-
lights and tail lights turn off 30 seconds
after a door is opened and closed if the
power switch is turned to ACCESSORY
mode or turned off. (The lights turn off
immediately if on the key is
pressed after all the doors are locked.) ●
When only the tail lights come on: The tail
lights turn off automatically if the power
switch is turned to ACCESSORY mode
or turned off and the driver’s door is
opened.
To turn the lights on again, turn the power
switch to ON mode, or turn the light switch
off once and then back to or
.■
Light reminder buzzer
A buzzer sounds when the power switch is
turned off or turned to ACCESSORY
mode and the driver’s door is opened while
the lights are turned on. ■
Automatic headlight leveling system (if
equipped)
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loadin g condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
■
12-volt battery-saving function
In order to prevent the 12-volt battery of the
vehicle from discharging, if the headlights
and/or tail lights are on when the power
switch is turned off the 12-volt battery sav-
ing function will operate and automatically
turn off all the lights after approximately 20
minutes. When the power switch is turned
to ON mode, the 12-volt battery-saving
function will be disabled.

186 4-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1 Push the lever away from you with
the headlight switch in or
position.
2 Press the Automatic High Beam
switch.The Automatic High Beam indicator will
come on when the headlights are turned
on automatically to indicate that the system
is active. ■
Operating conditions
The power switch is in ON mode. ■
High beam automatic turning on or off
conditions
When all of the following conditions are ful-
filled, high beam will be automatically
turned on: ●
Vehicle speed is above approximately 21
mph (34 km/h). ●
The area ahead of the vehicle is dark. ●
There are no oncoming or preceding
vehicles with headlights or tail lights
turned on. ●
There are few streetlights on the road
ahead.
If any of the following conditions are ful-
filled, high beam will be automatically
turned off: ●
Vehicle speed drops below approxi-
mately 17 mph (27 km/h). ●
The area ahead of the vehicle is not dark. ●
Oncoming or preceding vehicles have
headlights or tail lights turned on. ●
There are many streetlights on the road
ahead. ■
Camera sensor dete ction information●
High beam may not be automatically
turned off in the following situations:
• When oncoming vehicles suddenly
appear from a curve
• When the vehicle is cut in front of by
another
• When oncoming or preceding vehicles
are hidden from sight due to repeated
curves, road dividers or roadside trees
●
High beam may be turned off if an
oncoming vehicle that is using fog lights
without using the headlights is detected.
●
House lights, street lights, red traffic sig-
nals, and illuminated billboards or signs
may cause the high beam to turn off.
●
The following factors may affect the
amount of time taken to turn high beam
on or off:
• The brightness of headlights, fog lights, Automatic High Beam The Automatic High Beam uses an
in-vehicle camera sensor to assess
the brightness of streetlights, the
lights of oncoming and preceding
vehicles, etc., and automatically
turns high beam on or off as neces-
sary.
Activating the Automatic High
Beam system

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.

188 4-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Switching to low beam
Pull the lever to original position. The Automatic High Beam indicator will
turn off.
Push the lever away from you to activate
the Automatic High Beam system again.
■
Switching to high beam
Press the Automatic High Beam
switch. The Automatic High Beam indicator will
turn off and the high beam indicator will
turn on.
Press the switch to activate the Automatic
High Beam system again. NOTICE●
Do not install a parking tag or any
other accessories near or around the
camera sensor.●
Do not overload the vehicle.●
Do not modify the vehicle.●
Do not replace windshield with non-
genuine windshield.
Contact your Lexus dealer.
Changing to manual control
mode

1914-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving 8 Washer/wiper dual operationThe wipers will automatically operate a
couple of times afte r the washer squirts.
Vehicles with headlight cleaners:
When the headlights are on and the lever is
pulled and held, the headlight cleaners will
operate once. After this, the headlight
cleaners will operate every 5th time the
lever is pulled. ■
Rain-sensing windshield wipers (if
equipped) 
Type A
1 Off
2 Rain-sensing operation 3 Low speed operation
4 High speed operation
5 Temporary operation When “AUTO” is selected, the wipers will
operate automatically when the sensor
detects falling rain. Th e system automati-
cally adjusts wiper timing in accordance
with rain volume and vehicle speed.
The sensor sensitivity can be adjusted
when “AUTO” is selected.
6 Increases the sensitivity
7 Decreases the sensitivity
8 Washer/wiper dual operation The wipers will automatically operate a
couple of times after the washer squirts.
Vehicles with headlight cleaners:
When the headlights are on and the lever is
pulled and held, the he adlight cleaners will
operate once. After this, the headlight
cleaners will operate every 5th time the
lever is pulled.

192 4-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_OM78212U 
Type B
1 Off
2 Rain-sensing operation
3 Low speed operation
4 High speed operation
5 Temporary operationWhen “AUTO” is selected, the wipers will
operate automatically when the sensor
detects falling rain. The system automati-
cally adjusts wiper timing in accordance
with rain volume and vehicle speed.
The sensor sensitivity can be adjusted
when “AUTO” is selected. 6 Increases the sensitivity
7 Decreases the sensitivity
8 Washer/wiper dual operation The wipers will automatically operate a
couple of times after the washer squirts.
Vehicles with headlight cleaners:
When the headlights are on and the lever is
pulled and held, the he adlight cleaners will
operate once. After this, the headlight
cleaners will operate every 5th time the
lever is pulled.
■
The windshield wipers and washer can
be operated when
The power switch is in ON mode. ■
Dripping prevention wiper sweep (vehi-
cles with rain-sensi ng windshield wip-
ers)
After washing and wipi ng operation several
times, the wipers operate one more time
after a short delay to prevent dripping.
However, this function will not operate while
driving.
■
Effects of vehicle speed on wiper opera-
tion (vehicles with rain-sensing wind-
shield wipers)
Vehicle speed affects the Intermittent wiper
interval.
■
Raindrop sensor (vehicles with rain-
sensing windshield wipers)
●
The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently

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.

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