sensor LEXUS NX300h 2015 Workshop Manual

3234-5. Using the driving support systems
4
Driving
NX300h_U_OM78007U ■
Conditions under which the Rear Cross Traffic Alert function may not function
correctly
The Rear Cross Traffic Alert function may not detect vehicles correctly in the following
conditions: ●
During bad weather such as heavy rain, fog, snow, etc. ●
When ice or mud, etc., is attached to the rear bumper ●
When multiple vehicles approach continuously ●
Shallow angle parking ●
When a vehicle is approaching at high speed ●
When parking on a steep incline, su ch as hills, a dip in the road, etc.●
Directly after the BSM main switch is set to on ●
Directly after the hybrid system is started with the BSM main switch on ●
Vehicles that the sensors cannot detect
because of obstacles

438 6-1. Using the air conditioning system and defogger
NX300h_U_OM78007U ■
Fogging up of the windows ●
The windows will easily fog up when the humidity in the vehicle is high. Pressing “A/C”
button or selecting “A/C” will dehumidify th e air from the outlets and defog the wind-
shield effectively. ●
If you turn “A/C” off, the windows may fog up more easily. ●
The windows may fog up if the recirculated air mode is used. ■
Windshield fog detection function
When automatic mode is set, the humidity sensor (  P. 4 3 9 ) d e t e c t s f o g o n t h e w i n d -
shield and controls the air conditioning system to prevent fog. ■
Outside/recirculated air mode ●
When driving on dusty roads such as tunnels or in heavy traffic, set to
the recirculated air mode. This is effective in preventing outside air from entering the
vehicle interior. During cooling operation, setting the recirculated air mode will also
cool the vehicle interior effectively. ●
Outside/recirculated air mode may automati cally switch depending on the tempera-
ture setting or the inside temperature. ■
When the outside temperature is low
The dehumidification function may not operat e even when “A/C” is pressed or “A/C” is
selected. ■
Operation of the air conditioning system in Eco drive mode ●
In the Eco drive mode, the air conditioning sy stem is controlled as follows to prioritize
fuel efficiency
• Engine speed and compressor operation controlled to restrict heating/cooling
capacity
• Fan speed restricted when automatic mode is selected ●
To improve air conditioning performa nce, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode ■
Ventilation and air conditioning odors ●
To let fresh air in, set the air conditio ning system to the outside air mode.●
During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents. ●
To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off.
• The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.■
Air conditioning filter
 P. 5 3 0 ■
Customization
Settings (e.g. A/C automatic mode switch operation) can be changed.
(Customizable features:  P. 6 3 9 )

4396-1. Using the air conditio ning system and defogger
6
Interior features
NX300h_U_OM78007U WA R N I N G ■
To prevent the windshield from fogging up ●
Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■
To prevent burns ●
Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on. ●
Do not touch the glass at lower part of the wi ndshield or to the si de of the front pillars
when the windshield wiper de-icer is on.
NOTICE ■
Humidity sensor
■
To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys-
tem is off. ●
Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.
In order to detect fog on the windshield, a sen-
sor which monitors the temperature of the
windshield, the surround humidity, etc. is
installed. (  P. 4 3 8 )
Follow these points to avoid damaging the sen-
sor: ●
Do not disassemble the sensor ●
Do not spray the glass cleaner on the sensor
or subject it to strong impacts ●
Do not stick anything on the sensor

476 6-4. Other interior features
NX300h_U_OM78007U WA R N I N G ■
While driving the vehicle
Do not adjust the display. Adjust the di splay only when the vehicle is stopped.■
When doing the circling calibration
Secure a wide space, and watch out for people and vehicles in the vicinity. Do not vio-
late any local traffic rules while performing circling calibration.
NOTICE ■
To avoid compass malfunctions
Do not place magnets or any metal object s near the inside rear view mirror.
Doing this may cause the compass sensor to malfunction. ■
To ensure normal operation of the compass ●
Do not perform a circling calibration of the compass in a place where the earth’s
magnetic field is subject to interfer ence by artificial magnetic fields.●
During calibration, do not operate electric systems (moon roof, power windows, etc.)
as they may interfere with the calibration.

486 7-1. Maintenance and care
NX300h_U_OM78007U WA R N I N G ■
When washing the vehicle
Do not apply water to the inside of the en gine compartment. Doing so may cause the
electrical components etc. to catch fire. ■
When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●
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 windshield ●
If you directly touch the raindrop sensor 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 rear bumper is chipped or scratched, the syst em may malfunction. If
this occurs, consult your Lexus dealer.Set the wiper switch to off.
If the switch is in “AUTO”, the wipers may oper-
ate unexpectedly in the following situations,
and may result in hands being caught or other
serious injuries and cause damage to the wiper
blades.
Off

490 7-1. Maintenance and care
NX300h_U_OM78007U NOTICE ■
Cleaning detergents ●
Do not use the following types of detergent, as they may discolor the vehicle interior
or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or
acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol ●
Do not use polish wax or polish cleaner. The instrument panel’s or other interior part’s
painted surface may be damaged. ■
Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces: ●
Remove any dust or dirt from leather surfaces immediately. ●
Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer. ●
Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather su rface if the vehicle interior heats up significantly.■
Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system ma y be damaged if water comes into contact
with electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust. ■
When cleaning the inside of the windshield (vehicles with LDA [Lane Departure
Alert] or Automatic High Beam)
Be careful not to touch the camera sensor (  P. 2 7 0 ) .
If the camera is accidentally scratched or hit, LDA and Automatic High Beam may not
operate properly or may cause a malfunction. ■
Cleaning the inside of the rear window ●
Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window cl ean. Wipe the window in strokes running
parallel to the heater wires or antenna. ●
Be careful not to scratch or damage the heater wires or antenna. ■
Cleaning the front side windows
Do not use any compound or abrasive product (e.g., glass cleaner, detergent, wax) to
clean the windows. It may damage the coating.

568 8-2. Steps to take in an emergency
NX300h_U_OM78007U * 1
: This light illuminates on the multi-information display.
* 2
: Driver’s and front passenger’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the power switch is turned to ON mode, the buzzer sounds for
6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer sounds
once. If the seat belt is st ill unfastened after 24 second s, the buzzer will sound inter-
mittently for 10 seconds. Then, if the seat be lt is still unfastened, the buzzer will sound
in a different tone for 20 more seconds.
The front passenger’s seat be lt warning buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches
a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the
buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 20 more seconds. ■
SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front), side impact sensors (r ear), driver’s seat position sensor, driver’s
seat belt buckle switch, front passenger occupant classification system (ECU and sen-
sors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passenger’s
seat belt buckle switch, driver’s seat belt pr etensioner, front passenger’s seat belt preten-
sioner and force limiter, airbags, interconnecting wiring and power sources. (  P. 4 0 )■
Front passenger detection sensor, seat belt reminder and warning buzzer●
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.●
If a cushion is placed on th e seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly. ■
Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient of the voltage temporarily drops,
the electric power steering system warning light may come on and the warning buzzer
may sound. ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel tank empty?
If it is, fill the fuel tank immediately. ●
Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.

636 9-2. Customization
NX300h_U_OM78007U ■
Wireless remote control (  P. 1 2 4 )
■
Automatic light control system (  P. 2 1 9 )
■
Lights ( 
P. 2 1 9 ) Function Default
setting Customized
setting
Wireless remote control On Off – – O –
Unlocking operation Driver’s door
unlocked in first
step, all doors
unlocked in
second step All doors
unlocked in first
step O–O–
Panic function On Off – – O –
The function that validates the
switch of the wireless
remote control when locking
the door (  P. 1 2 9 ) When locking
the door When unlock-
ing the door ––O– 1 2 3 4
Function Default
setting Customized
setting
Light sensor sensitivity Standard -2 to 2 O – O –
Adjust the time elapsed
before the headlights auto-
matically turn off 30 seconds Off
O–O–
60 seconds
90 seconds 1 2 3 4
Function Default
setting Customized
setting
Daytime Running Lights
(Daytime running lights can
be disabled) On Off O – O – 1 2 3 4

640 9-2. Customization
NX300h_U_OM78007U ■
Intuitive parking assist (  P. 2 7 9 )
* : If equipped ■
Driving position memory
* (  P. 1 5 4 )
* : If equipped ■
Outside rear view mirrors (  P. 1 6 3 )
■
LDA (Lane Departure Alert with steering control)
* (  P. 2 7 0 )
* : If equipped Function Default
setting Customized
setting
Detection distance of the
front center sensor Long Short O – O –
Detection distance of the rear
center sensor Long Short O – O –
Display setting (When intui-
tive parking assist is operat-
ing) On Off O – O –
Buzzer volume 3 1 to 5 O – O – 1 2 3 4
Function Default
setting Customized
setting
Driver’s seat movement when
exiting the vehicle Standard Off
O – O –
Pa r t i a l
Selection the door linking
driving position memory with
door unlock operation Driver’s door All doors – – O – 1 2 3 4
Function Default
setting Customized
setting
Linked mirror function when
reversing On Off – – O – 1 2 3 4
Function Default
setting Customized
setting
Steerage assist On Off – O – –
Sensitivity adjustment for the
lane deviation alert buzzer Standard High – O – – 1 2 3 4

660 What to do if... (Troubleshooting)
NX300h_U_OM78007U ●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (  P. 5 6 7 )●
The parking brake indicator is on
Is the parking brake released? (  P. 2 1 3 )
Depending on the situation, other type s of warning buzzer may also sound.
(  P. 5 6 5 , 5 7 2 ) ●
Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (  P. 8 8 )
To stop the alarm, turn the power switch to ON mode or start the hybrid system.●
Is the message displayed on the multi-information display?
Check the message on the multi-information display. (  P. 5 7 2 )●
When a warning light turns on or a warning message is displayed, refer to
P. 5 6 5 , 5 7 2 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed