sensor LEXUS NX300h 2018 Workshop Manual

242 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U off. When the switch is set to on, the
switch’s indicator illuminates and the
buzzer sounds. This swit ch is for both Blind
Spot Monitor function and Rear Cross
Traffic Alert function.
BSM outside rear view mirror indi-
catorsBlind Spot Monitor function:
When a vehicle is detected in a blind spot
of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside rear
view mirror indicator will flash.
Rear Cross Traffic Alert function:
When a vehicle approaching from the right
or left at the rear of the vehicle is detected,
both outside rear view mirror indicators
will flash.
Rear Cross Traffic Alert buzzer
(Rear Cross Traffic Alert function
only)When a vehicle approaching from the right
or left rear of the vehicle is detected, a
buzzer sounds from behind the right-hand
rear seat.
Navigation/multimedia system screen (Rear Cross Traffic Alert
function only) If a vehicle approaching from the right or
left at the rear of th e vehicle is detected,
the Rear Cross Traffic Alert icon ( → P.246)
for the detected side will be displayed. ■
The BSM outside rear view mirror indi-
cators visibility
When under strong sunlight, the BSM out-
side rear view mirror indicator may be diffi-
cult to see. ■
Rear Cross Traffic Alert buzzer hearing
Rear Cross Traffic Alert function may be
difficult to hear over loud noises such as
high audio volume. ■
When “Blind Spot Monitor Unavailable”
is shown on the multi-information dis-
play
Water, snow mud, etc., may be built up in
the vicinity of the sensor area of bumper.
( → P.243) Removing the water, snow, mud,
etc., from the vicinity of the sensor area
bumper should return it to normal. Also, the
sensor may not function normally when
used in extremely hot or cold weather. ■
When “Blind Spot Monitor System Mal-
function Visit Your Dealer” is shown on
the multi-information display
There may be a sensor malfunction or volt-
age abnormality. Have the vehicle
inspected at a Lexus dealer.■
Certification for the B lind Spot Monitor system
For vehicles sold in the U.S.A. B
C
D

2434-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving 
For vehicles sold in Canada
The Blind Spot Monitor function uses
radar sensors to detect vehicles that WARNING■
Handling the radar sensor
One Blind Spot Monitor sensor is
installed inside the le ft and right side of
the vehicle rear bumper respectively.
Observe the following to ensure the
Blind Spot Monitor system can function
correctly. ●
Keep the sensor an d its surrounding
area on the bumper clean at all times. ●
Do not subject the sensor or surround-
ing area on the bumper to a strong
impact. If the sensor moves even
slightly off position, the system may
malfunction and vehicles that enter the
detection area may not be detected. If
the sensor or surrounding area is sub-
ject to a strong impact, always have the
area inspected by your Lexus dealer.
●
Do not disassemble the sensor.
●
Do not attach accessories or stickers
to the sensor or surrounding area on
the bumper.
●
Do not modify the sensor or surround-
ing area on the bumper.
●
Do not paint the rear bumper any
color other than an official Lexus color.
●
If the radar sensor needs to be
replaced, contact your Lexus dealer.
The Blind Spot Monitor function

244 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U are traveling in an adjacent lane in the
area that is not reflected in the outside
rear view mirror (the blind spot), and
advises the driver of the vehicles exis-
tence via the BSM outside rear view
mirror indicator. ■
The Blind Spot Monitor function detec-
tion areas
The areas that vehicles can be detected in
are outlined below.
The range of the detection area extends to:
Approximately 11.5 ft . (3.5 m) from the
side of the vehicle
The first 1.6 ft. (0.5 m) from the side of the
vehicle is not in the detection area
Approximately 9.8 ft. (3 m) from the
rear bumper
Approximately 3.3 ft. (1 m) forward of
the rear bumper
■
The Blind Spot Monitor function is oper-
ational when
●
The BSM main switch is set to on
●
Vehicle speed is greater than approxi-
mately 10 mph (16 km/h). ■
The Blind Spot Monitor function will
detect a vehicle when ●
A vehicle in an adjacent lane overtakes
your vehicle. ●
Another vehicle enters the detection
area when it changes lanes. ■
Conditions under which the Blind Spot
Monitor function will not detect a vehi-
cle
The Blind Spot Monitor function is not
designed to detect the following types of
vehicles and/or objects: ●
Small motorcycles, bicycles, pedestrians,
etc. *
●
Vehicles traveling in the opposite direc-
tion ●
Guardrails, walls, signs, parked vehicles
and similar stationary objects *
●
Following vehicles that are in the same
lane *
●
Vehicles driving 2 lanes across from your
vehicle *
*
: Depending on conditions, detection of a
vehicle and/or object may occur. ■
Conditions under which the Blind Spot
Monitor function may not function cor-
rectly
The Blind Spot Monitor function may not
detect vehicles correctly in the following
conditions: ■
Conditions under which the Blind Spot
Monitor function may not function cor-
rectly ●
The Blind Spot Monitor function may not
detect vehicles correctly in the following
situations:
• When the sensor is misaligned due to a
strong impact to the sensor or its sur-
rounding area
• When mud, snow, ice, a sticker, etc. is
covering the sensor or surrounding area
on the rear bumper
• When driving on a road surface that is
wet with standing water during bad
weather, such as heavy rain, snow, or fog
• When multiple vehicles are approaching
with only a small gap between each vehi-
cleA
B
C

2454-5. Using the driving support systems
LEXUS NX300h Owners Manu-
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Driving • When the distance between your vehicle
and a following vehicle is short
• When there is a significant difference in
speed between your vehicle and the vehi-
cle that enters the detection area
• When the difference in speed between
your vehicle and another vehicle is
changing
• When a vehicle enters a detection area
traveling at about the same speed as your
vehicle
• As your vehicle starts from a stop, a vehi-
cle remains in the detection area
• When driving up an d down consecutive
steep inclines, such as hills, dips in the
road, etc.
• When driving on roads with sharp bends,
consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when
driving on the edge of a lane, and the
vehicle in an adjacent lane is far away
from your vehicle
• When towing a trailer (vehicles with tow-
ing package)
• When items such as a bicycle carrier are
installed on the rear of the vehicle
• When there is a significant difference in
height between your vehicle and the
vehicle that enters the detection area
• Immediately after the Blind Spot Monitor
function is turned on●
Instances of the Blind Spot Monitor func-
tion unnecessarily detecting a vehicle
and/or object may increase in the follow-
ing situations:
• When the sensor is misaligned due to a
strong impact to the sensor or its sur-
rounding area
• When the distance between your vehicle
and a guardrail, wall, etc. that enters the
detection area is short
• When driving up an d down consecutive
steep inclines, such as hills, dips in the
road, etc.
• When vehicle lanes are narrow, or when
driving on the edge of a lane, and a vehi-
cle traveling in a lane other than the adja-
cent lanes enters the detection area
• When driving on roads with sharp bends,
consecutive curves, or uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle
and a following vehicle is short
• When a bicycle carrier or other acces- sory is installed to the rear of the vehicle
• When towing a trailer (vehicles with tow-
ing package)
WARNING■
Cautions regarding the use of the sys-
tem
The driver is solely responsible for safe
driving. Always drive safely, taking care
to observe your surroundings.
The Blind Spot Monitor function is a sup-
plementary function which alerts the
driver that a vehicle is present in the blind
spot. Do not overly re ly on the Blind Spot
Monitor function. The function cannot
judge if it is safe to change lanes, there-
fore over reliance could cause an acci-
dent resulting in death or serious injury.
According to conditions, the system may
not function correctly. Therefore the
driver’s own visual confirmation of safety
is necessary.

246 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U The Rear Cross Traffic Alert function operat es when your vehicle is in reverse. It
can detect other vehicles approaching from th e right or left rear of the vehicle. It
uses radar sensors to alert the driver of the other vehicle’s existence through flash-
ing the BSM outside rear view mirror indicators and sounding a buzzer.
Approaching vehicles
Detection areas ■
Rear Cross Traffic Alert icon dis-
play (if equipped)
When a vehicle approaching from the
right or left at the rear of the vehicle is
detected, the following will be dis-
played on the navigation/multimedia
system screen. 
Lexus parking assist monitor
A vehicle is approaching from the left
or right at the rear of the vehicle 
Panoramic view monitor
A vehicle is approaching from the left
or right at the rear of the vehicle
■
The Rear Cross Traffic Alert function detection areas
The areas that vehicles can be detected in are outlined below.The Rear Cross Traffic Alert function
A
B

248 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U ●
When backing out of a sharp angle park-
ing spot
●
When parking on a steep incline, such as
hills, a dip in the road, etc.●
Directly after the BSM main switch is set
to on●
Vehicles that the sensors cannot detect
because of obstacles
●
Instances of the Rear Cross Traffic Alert
function unnecessary detecting a vehicle
and/or object may increase in the follow-
ing situations:
• When a vehicle passes by the side of your
vehicle
• When the parking space faces a street
and vehicles are being driven on the
street • When the distance between your vehicle
and metal objects, such as a guardrail,
wall, sigh, or parked vehicle, which may
reflect electrical waves toward the rear of
the vehicle, is short
WARNING■
Cautions regarding the use of the sys-
tem
The driver is solely responsible for safe
driving. Always drive safely, taking care
to observe your surroundings.
The Rear Cross Traffic Alert function is
only an assist and is not a replacement for
careful driving. Driv er must be careful
when backing up, even when using Rear
Cross Traffic Alert function. The driver’s
own visual confirmation of behind you
and your vehicle is necessary and be sure
there are no pedestrians, other vehicles,
etc., before backing up. Failure to do so
could cause death or serious injury.
According to conditions, the system may
not function correctly. Therefore the
driver’s own visual confirmation of safety
is necessary.

2735-2. Using the air conditio ning system and defogger
LEXUS NX300h Owners Manu-
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Interior features “A/C” button or selecting “A/C” will
dehumidify the air from the outlets and
defog the windshield effectively.●
If you turn “A/C” off, the windows may
fog up more easily.●
The windows may fog up if the recircu-
lated air mode is used.■
Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from
building up on the wi ndshield and wiper
blades.
Select on the option control screen.
When the windshield wiper de-icer on,
is displayed on the air conditioning
control screen.
The windshield wiper de-icer will automati-
cally turn off after a period of time. ■
Eco air conditioning mode
When Eco mode is selected using the drive
mode select switch, eco air conditioning
mode turns on. When a drive mode other
than Eco mode is selected, eco air condi-
tioning mode may turn off. ■
S-FLOW mode
Priority for airflow is given to the front seats,
and the airflow and air conditioning for the
rear seats is effectively controlled.
Select on the option control screen.
The indicator comes on when S-FLOW
mode is on.
Press again to return to the previ-
ous mode. ■
Micro dust and pollen filter
Pollen is removed from the air and the air
flows to the upper part of the body.
Select on the option control screen.
When the micro dust and pollen filter is on,
is displayed on the air conditioning
control screen.
In order to prevent the windshield from fog-
ging up when the outside air is cold, the
dehumidification function may operate.
The pollens are filtered out even if the micro
dust and pollen filter is turned off. 1 Press the “AUTO” button.
2 Adjust the temperature setting.
3 To stop the operation, press the
“OFF” button.
If the fan speed setting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained. ■
Using automatic mode
Fan speed is adjusted automatically accord-
ing to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until
warm or cool air is ready to flow immedi-
ately after the “AUTO” button is pressed or
“AUTO” is selected. ■
Windshield fog detection function
When automatic mode is set, the humidity
sensor ( → P.274) detects fog on the wind-
shield and controls the air conditioning sys-
tem to prevent fog.
■
Air conditioning filter
→ P.346
■
Customization
Settings (e.g. A/C automatic mode switch
operation) can be changed.
(Customizable features: → P.424)WARNING■
To prevent burns (vehicles with wind-
shield wiper de-icer)
Do not touch the glass at lower part of
the windshield or to the side of the front
pillars when the windshield wiper de-icer
is on.
Using automatic mode

274 5-2. Using the air conditio ning system and defogger
LEXUS NX300h Owners Manu-
al_USA_OM78212U To turn on the “DUAL” mode, perform
any of the following procedures:
 Press the “DUAL” button.
 Select “DUAL” on the option con-
trol screen.
 Adjust the temperature setting of
the passenger side with the passen-
ger side temperature adjustment
button. The indicator comes on when the “DUAL”
mode is on. ■
Location of air outlets
The air outlets and air volume changes
according to the selected air flow
mode.
■
Adjusting the position of and open-
ing and closing the air outlets 
Front
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
ventNOTICE■
Humidity sensor
In order to detect fog on the windshield,
a sensor which monitors the temperature
of the windshield, the surround humidity,
etc., is installed.
Follow these points to avoid damaging
the sensor:
●
Do not disassemb le the sensor●
Do not spray the glass cleaner on the
sensor or subject it to strong impacts●
Do not stick anything on the sensor
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode) Air outlet layout and operations

3156-1. Maintenance and care
LEXUS NX300h Owners Manu-
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Maintenance and care • Do not use acidic, a lkaline or abrasive
detergent
• Do not use hard brushes
• Do not use detergent on the wheels when
they are hot, such as after driving or park-
ing in hot weather■
Bumpers
Do not scrub with abrasive cleaners. ■
Front side windows water-repellent
coating (vehicles wi th water-repellent
coating)●
The following precautions can extend the
effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side
windows regularly.
• Do not allow dirt and dust to accumulate
on the windows for a long period.
Clean the windows with a soft, damp
cloth as soon as possible.
• Do not use wax or glass cleaners that
contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to
remove condensation build up.●
When the water-repellent performance
has become insufficie nt, the coating can
be repaired. Contact your Lexus dealer.
WARNING■
When washing the vehicle
Do not apply water to the inside of the
engine compartment. Doing so may
cause the electrical components etc. to
catch fire. ■
When cleaning the windshield (vehi-
cles with rain-sensing windshield wip-
ers)
Set the wiper switch to off.
If the switch is in “AUTO”, the wipers may
operate unexpectedly in the following sit-
uations, and may result in hands being
caught or other serious injuries and
cause damage to the wiper blades.
Off
AUTO ●
When the upper part of the windshield
where the raindrop sensor is located is
touched by hand ●
When a wet rag or similar is held close
to the raindrop sensor ●
If something bumps against the wind-
shield ●
If you directly touch the raindrop sen-
sor body or if something bumps into
the raindrop sensor
■
Precautions regarding the exhaust
pipe
Exhaust gasses cause the exhaust pipe to
become quite hot.
When washing the vehicle, be careful not
to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe
can cause burns.
■
Precautions regarding the rear
bumper with Blind Spot Monitor (if
equipped)
If the paint of the re ar bumper is chipped
or scratched, the system may malfunc-
tion. If this occurs, consult your Lexus
dealer. A
B

368 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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LDA indicator
■
PKSB OFF indicator
■
Slip indicator light
■
Brake hold operated indicator Warning light Details/Actions
(Orange)
Indicates a malfunction in the LDA (Lane Departure Alert
with steering control)
→ When “Lane Departure Alert Unavailable” is dis-
played on the multi-information display, turn the LDA
system off, drive the vehicle for a short time, and then
turn the LDA system back on. ( → P.210)
When a message other than above is displayed, follow
the instructions displayed in the message.
Warning light Details/Actions
(Flashes) When a buzzer sounds: Indicates a malfunction in the PKSB
(Parking Support Brake) system
→ Have the vehicle inspected by your Lexus dealer
immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, pos-
sibly due to a sensor being di rty or covered with ice, etc.
→ Clear the dirt, etc.
Warning light Details/Actions
Indicates a malfunction in:
 The VSC system;
 The TRAC system; or
 The hill-start assist control system
The light will flash when the ABS, VSC or TRAC system is
operating.
→ Have the vehicle inspected by your Lexus dealer
immediately.
Warning light Details/Actions
(Flashes) Indicates a malfunction in the brake hold system
→ Have the vehicle inspected by your Lexus dealer
immediately.