brake sensor LEXUS NX300H 2019 Owners Manual

872-1. Instrument cluster
LEXUS NX300h Owners Manu-
al_USA_M78287_en
2
Vehicle status information and indicators
warning.
 Sway sensitivity
Select to set the vehicle sway warning sen-
sitivity.
■ PCS (Pre-Collision System)
(  P.202)
Select to set up the following items.
 PCS on/off
Select to enable/dis able the pre-collision
system.
 PCS sensitivity
Select to change the warning timing.
■PKSA (Parking Support Alert) (if
equipped) ( P.226)
Select to set up the following items.
 Intuitive parking assist sensor
Select to enable/disab le the intuitive park-
ing assist sensor.
 Volume
Select to set the volume of the buzzer
which sounds when the parking support
alert is operated.
■ PKSB (Parking Support
Brake System) (if equipped)
(  P.232)
 PKSB on/off
Select to enable/dis able the parking sup-
port brake function (for static objects).
■Clock
Select to switch between 12-hour dis-
play and 24-hour display.
■Vehicle Settings
 PBD (Power Back Door)
(  P.108)
*1
Select to set up the following items.
•System settings
Select to enable/disable the power back
door system.
•Volume
Select to set the volume of the buzzer
which sounds when the power back door
system.
• Kick Sensor
*2
Select to enable/dis able the kick sensor.
*1: Vehicles with power back door
*2:Vehicles with hands free power back
door
 TPMS (Tire Pressure Warning Sys-
tem) ( P.339)
Select to initialize the tire pressure warning
system.
 Scheduled Maintenance ( P.319)
Select to initialize the scheduled mainte-
nance.
 Oil maintenance ( P.330)
Select to reset the engine oil maintenance
information (message indicating mainte-
nance is required and distance until the
next oil change) after engine oil mainte-
nance is performed.
■Meter settings
 Language
Select to change the language on the dis-
play.
 Units
Select to change the unit of measure for
fuel consumption.
 EV Indicator ( P.62)
Select to set the EV indicator on/off.
 Switch settings ( P.84)

1133-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manu-
al_USA_M78287_en
3
Before driving
●When the wireless re mote control is
used*
●When the power switch is in ON mode,
in addition to the above for the opening
operations, the back door operates for
any of the following conditions:
• Parking brake is engaged
• The brake pedal is depressed
• The shift lever is in P
*: When configured with the customization
function so that it can be operated after
being unlocked, operate the back door
after it has been unlocked.
■Kick sensor (vehicles with hands free
power back door)
The power back door will open/close auto-
matically when the kick sensor operation is
enabled ( P.112) and the following condi-
tions are met:
●The power back door is fully closed/
opened.
●The electronic key is within the opera-
tional range. ( P.120)
●A foot is put near the lower center part of
the rear bumper and moved away from
the rear bumper.
The power back door may also be operated
by putting a hand, an elbow, a knee, etc.
near the lower center part of the rear
bumper and moving it away from the rear
b ump er. Ma ke sure to p ut it c lose e n ough t o
the center part of the rear bumper.
■Back door closer
In the event that the back door is left slightly
open, the back door closer will automati-
cally close it to the fully closed position.
Whatever the state of the power switch, the
back door closer operates.
■Operation of the power back door
●A buzzer sounds and the emergency
flashers flash twice to indicate that the
back door is opening/closing.
●When the power back door operations
are OFF, the power back door does not
operate but it can be opened and closed
by hand.
●When the power back door automati-
cally opens, if an abnormality due to peo-
ple or objects is de tected, operation will
stop.
■Close & lock function
When the power back door is open, this
function closes the power back door and
then locks all of the doors simultaneously.
When the following procedures are per-
formed and there are no electronic keys for
the vehicle within the vehicle, all of the
doors will lock when th e power back door is
completely closed.
1 Close all of the doors except the power
back door.
2 While carrying an electronic key, press
the switch on the lower part of
the power back door ( P.109).
A different buzzer than the normal one will
sound and then the power back door will
begin closing automatically. When the
power back door is closed, all of the doors
will lock simultaneously and operation sig-
nals will indicate that all of the doors have
been locked.
■Situations in which the close & lock
function may not operate properly
(vehicles with hands free power back
door)
In the following situations, the close & lock
function may not operate properly:
●If the switch on the lower part of
the power back door ( P.109) is
pressed by a hand which is holding an
electronic key
●If the switch on the lower part of
the power back door ( P.109) is
pressed when the electronic key is in a
bag, etc. that is placed on the ground
●If the switch on the lower part of
the power back door ( P.109) is
pressed with the electronic key not near
the vehicle.

1834-3. Operating the lights and wipers
LEXUS NX300h Owners Manu-
al_USA_M78287_en
4
Driving
■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.

1974-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
4
Driving
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.202
■LDA (Lane Departure Alert with
steering control)
 P.209
■Automatic High Beam
 P.185
■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

2024-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
■Pre-collision warning
When the system determines that the
possibility of a frontal collision is high, a
buzzer will sound and a warning mes-
sage will be displayed on the multi-
information display to urge the driver
to take evasive action.
■Pre-collision brake assist
When the system determines that the
possibility of a frontal collision is high,
the system applies greater braking
force in relation to how strongly the
brake pedal is depressed.
■Pre-collision braking
When the system determines that the
possibility of a frontal collision is high,
the system warns the driver. If the sys-
tem determines that the possibility of a
frontal collision is extremely high, the
brakes are automatically applied to
help avoid the collision or reduce the
collision speed.
PCS (Pre-Collision System)
The pre-collision system uses a
radar sensor and camera sensor to
detect vehicles and pedestrians in
front of your vehicle. When the sys-
tem determines that the possibility
of a frontal collision with a vehicle
or pedestrian is high, a warning
operates to urge the driver to take
evasive action and the potential
brake pressure is increased to help
the driver avoid the collision. If the
system determines that the possi-
bility of a frontal collision with a
vehicle or pedestrian is extremely
high, the brakes are automatically
applied to help avoid the collision
or help reduce the impact of the
collision.
The pre-collision system can be dis-
abled/enabled and the warning tim-
ing can be changed. ( P.204)
System functionsWARNING
■Limitations of the pre-collision system
●The driver is solely responsible for safe
driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-collision system
instead of normal braking operations
under any circumstances. This system
will not prevent collisions or lessen col-
lision damage or injury in every situa-
tion. Do not overly rely on this system.
Failure to do so may lead to an acci-
dent, resulting in death or serious
injury.

2084-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_enrounding brightness
changes suddenly,
such as at the entrance or exit of a tunnel
• When a very bright light, such as the sun
or the headlights of oncoming traffic,
shines directly in to the camera sensor
• When the surrounding area is dim, such
as at dawn or dusk, or while at night or in
a tunnel
• After the hybrid system has started the
vehicle has not been driven for a certain
amount of time
• While making a left/right turn and for a
few seconds after makin g a left/right turn
• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the front of the vehicle is raised or low- ered
• If the wheels are misaligned
• If a wiper blade is blocking the camera sensor
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on a hill
• If the radar sensor or camera sensor is misaligned
●In some situations such as the following,
sufficient braking force may not be
obtained, preventing the system from
performing properly:
• If the braking functions cannot operate to their full extent, such as when the brake
parts are extremely cold, extremely hot,
or wet
• If the vehicle is not properly maintained (brakes or tires are excessively worn,
improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery surface
●Some pedestrians such as the following
may not be detected by the radar sensor
and camera sensor, preventing the sys-
tem from operating properly: • Pedestrians shorter than approximately
3.2 ft. (1 m) or taller than approximately
6.5 ft. (2 m)
• Pedestrians wearing oversized clothing (a rain coat, long skirt, etc.), making their
silhouette obscure
• Pedestrians who are carrying large bag- gage, holding an umbrella, etc., hiding
part of their body
• Pedestrians who are bending forward or squatting
• Pedestrians who are pushing a stroller,
wheelchair, bicycle or other vehicle
• Groups of pedestrians which are close together
• Pedestrians who are wearing white and look extremely bright
• Pedestrians in the dark, such as at night
or while in a tunnel
• Pedestrians whose clothing appears to be nearly the same color or brightness as
their surroundings
• Pedestrians near walls, fences, guardrails, or large objects
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.) on the
road
• Pedestrians who are walking fast
• Pedestrians who are changing speed abruptly
• Pedestrians running out from behind a vehicle or a large object
• Pedestrians who are extremely close to
the side of the vehicle (outside rear view
mirror, etc.)
■If the PCS warning light flashes or illumi-
nates and a warning message is dis-
played on the multi-information display
The pre-collision system may be temporar-
ily unavailable or there may be a malfunc-
tion in the system.
●In the following situations, the warning
light will turn off, the message will disap-
pear and the system will become opera-
tional when normal operating conditions
return:
• When the radar sensor or camera sensor or the area around either sensor is hot,
such as in the sun
• When the radar sensor or camera sensor or the area around either sensor is cold,
such as in an extremely cold environment
• When a front sensor is dirty or covered

2094-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
4
Driving
with snow, etc.
• When the part of the windshield in front of the camera sensor is fogged up or cov-
ered with condensation or ice (Defog-
ging the windshield: P.267)
• If the camera sensor is obstructed, such
as when the hood is open or a sticker is
attached to the windshield near the cam-
era sensor
●If the PCS warning ligh t continues to flash
or remains illuminated or the warning
message does not disappear even
though the vehicle has returned to nor-
mal, the system may be malfunctioning.
Have the vehicle inspected by your Lexus
dealer immediately.
■If VSC is disabled
●If VSC is disabled ( P.251), the pre-col-
lision brake assist and pre-collision brak-
ing functions are also disabled.
●The PCS warning light will turn on and
“VSC Turned Off Pre-Collision Brake
System Unavailable” will be displayed on
the multi-information display.
■Lane departure alert function
When the system determines that the
vehicle might depart from its lane, a
warning is displayed on the multi-infor-
mation display, and either the warning
buzzer sounds or the steering wheel
vibrates to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the sur-
rounding road situation and carefully oper-
ate the steering wheel to move the vehicle
back to the center of the lane.
LDA (Lane Departure Alert
with steering control)
When driving on highways and
freeways with white (yellow) lines,
this function alerts the driver when
the vehicle might depart from its
lane and provides assistance by
operating the steering wheel to
keep the vehicle in its lane.
The LDA system recognizes visible
white (yellow) lines with the camera
sensor on the upper portion of the
windshield.
Functions included in LDA sys-
tem

2194-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
4
Driving
This mode employs a radar sensor to detect the presence of vehicles up to approx-
imately 328 ft. (100 m) ahead, determines the current vehicle-to-vehicle following
distance, and operates to maintain a suit able following distance from the vehicle
ahead.
Note that vehicle-to-vehicle distance will close in when traveling on downhill slopes.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-to-vehicle distance
can also be set by operating the vehicle-to-vehicle distance switch.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at this time). The sy stem will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when th e system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehi cle will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pushing the cruise control lever up or
depressing the accelerator pedal will resume follow-up cruising.
Example of acceleration
When there are no longer any preceding vehicles driving slower than the set
speed
The system accelerates until the set speed is re ached. The system then returns to constant
speed cruising.
Driving in vehicle-to-vehicle distance control mode
A
B
C

2244-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
●Vehicle speed is at or above approxi-
mately 30 mph (50 km/h).
However, when a preceding vehicle is
detected, the dynamic radar cruise con-
trol with full-speed range can be set even
if the vehicle speed is below approxi-
mately 30 mph (50 km/h).
■Accelerating after setting the vehicle
speed
The vehicle can accelerate by operating the
accelerator pedal. After accelerating, the
set speed resumes. However, during vehi-
cle-to-vehicle distance control mode, the
vehicle speed may decrease below the set
speed in order to maintain the distance to
the preceding vehicle.
■When the vehicle stops while follow-up
cruising
●Pushing the lever up while the vehicle
ahead stops will resume follow-up cruis-
ing if the vehicle ahead starts off within
approximately 3 seconds after the lever
is pushed up.
●If the vehicle ahead starts off within 3 sec-
onds after your vehicle stops, follow-up
cruising will be resumed.
■Automatic cancelation of vehicle-to-
vehicle distance control mode
Vehicle-to-vehicle dist ance control mode is
automatically canceled in the following situ-
ations:
●Actual vehicle speed falls at or below
approximately 25 mph (40 km/h) when
there are no vehicles ahead.
●The preceding vehicle leaves the lane
when your vehicle is following at a vehicle
speed at or below approximately 25 mph
(40 km/h). Otherwise, the sensor can
not properly detect the vehicle.
(“CRUISE NOT AVAILABLE No pre-
ceding vehicle” is displayed on the multi-
information display.)
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is
turned off.
●The sensor cannot detect correctly
because it is covered in some way.
●Pre-collision braking is activated.
●The parking brake is operated.
●The vehicle is stopped by system control
on a steep incline.
●The following are detected when the
vehicle has been stopped by system con-
trol:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes
If vehicle-to-vehicle distance control mode
is automatically canceled for any other rea-
son, there may be a malfunction in the sys-
tem. Contact your Lexus dealer.
■Automatic cancelation of constant
speed control mode
Constant speed control mode is automati-
cally canceled in the following situations:
●Actual vehicle speed is more than
approximately 10 mph (16 km/h) below
the set vehicle speed.
●Actual vehicle speed falls below approxi-
mately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is
turned off.
●Pre-collision braking is activated.
If constant speed control mode is automati-
cally canceled for any other reason, there
may be a malfunction in the system. Con-
tact your Lexus dealer.
■Brake system operation sound
If the brakes are app lied automatically while
the vehicle is in vehicle-to-vehicle distance
control mode, a brake system operation
sound may be heard. This does not indicate
a malfunction.
■Warning messages and buzzers for
dynamic radar cruise control with full-
speed range
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution while driv-
ing. If a warning messa ge is shown on the
multi-information displa y, read the message

2254-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_M78287_en
4
Driving
and follow the instructions.
■When the sensor may not be correctly
detecting the vehicle ahead
In the case of the following and depending
on the conditions, operate the brake pedal
when deceleration of the system is insuffi-
cient or operate the accelerator pedal
when acceleration is required.
As the sensor may not be able to correctly
detect these types of vehicles, the approach
warning ( P.222) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same
lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles travelin g in the same lane
●When water or snow thrown up by the
surrounding vehicles hinders the detect-
ing of the sensor
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
●Preceding vehicle has an extremely high
ground clearance
■Conditions under which the vehicle-to-
vehicle distance control mode may not
function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator
pedal, depending on the situation) as nec-
essary.
As the sensor may not be able to correctly
detect vehicles ahead, the system may not
operate properly.
●When the road curves or when the lanes
are narrow
●When steering wheel operation or your
position in the lane is unstable
●When the vehicle ahead of you deceler-
ates suddenly
●When driving on a road surrounded by a
structure, such as in a tunnel or on a
bridge
●While the vehicle speed is decreasing to
the set speed after the vehicle acceler-
ates by depressing the accelerator pedal