LEXUS NX300h 2021 Owners Manual
Page 201 of 484
2014-3. Operating the lights and wipers
LEXUS NX300h Owners  Manual_USA_M78578_en
4
Driving
Operating the   switch operates 
the rear wiper as follows:
Type A
1  Off
2  Intermittent operation
3  Normal operation
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 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.
Rear window wiper and 
washer
NOTICE
■When the rear window is dry
Do not use the wiper, as it may damage 
the rear window.
Operating the wiper lever 
Page 202 of 484
2024-3. Operating the lights and wipers
LEXUS NX300h Owners Manual_USA_M78578_en
4 Washer/wiper dual opera-
tion
Pushing the lever operates the wiper and 
washer.
The wiper will automatically operate a cou-
ple of times after the washer squirts.
Type B
1  Off
2  Intermittent operation
3  Normal operation 4
 Washer/wiper dual opera-
tion
Pushing the lever oper ates the wiper and 
washer.
The wiper will automatically operate a cou-
ple of times after the washer squirts.
■The rear window wiper and washer can 
be operated when
The power switch is in ON mode.
NOTICE
■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 wiper on longer than 
necessary when the hy brid system is off. 
Page 203 of 484
2034-4. Refueling
LEXUS NX300h Owners  Manual_USA_M78578_en
4
Driving
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.432
■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.
■If the malfunction indicator lamp illumi-
nates
The malfunction indicator lamp may illumi-
nate erroneously if refueling is performed 
repeatedly when the fuel tank is nearly full.
1 With all 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 vehicle 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 
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2044-4. Refueling
LEXUS NX300h Owners Manual_USA_M78578_en
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.411
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
■Warning buzzer for loose fuel cap
When the power switch  is in ON mode and 
the cap is loose, th e buzzer sounds and a 
message is displayed on the multi-informa-
tion display.
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. 
Page 205 of 484
2054-5. Using the driving support systems
LEXUS NX300h Owners  Manual_USA_M78578_en
4
Driving
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.211
■LTA (Lane Tracing Assist) (if 
equipped)
 P.218
■LDA (Lane Departure Alert with 
steering control) (if equipped)
 P.227
■AHB (Automatic High Beam)
 P.193
■RSA (Road Sign Assist) (if 
equipped)
 P.235
■Dynamic radar cruise control with 
full-speed range
 P.237 Two types of sensors, located behind 
the front grille and windshield, detect 
information necessary to operate the 
drive assist systems.
Radar sensor
Front camera
Lexus Safety System + 2.0
The Lexus Safety System + 2.0 con-
sists of the following drive assist sys-
tems and contributes to a safe and 
comfortable driving experience:
Driving assist system
WARNING
■Lexus Safety System + 2.0
The Lexus Safety System + 2.0 is 
designed to operate under the assump-
tion 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 conditions.
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 surroundings and driving 
safely.
Sensors
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 
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2064-5. Using the driving support systems
LEXUS NX300h Owners Manual_USA_M78578_en
WARNING
●Keep the radar sensor and the radar 
sensor cover clean at all times.
Radar sensor
Radar sensor cover
If the front of the rada r sensor or the front 
or back of the radar  sensor cover is dirty 
or covered with water droplets, snow, 
etc., clean it. 
Clean the radar sensor and radar sensor 
cover with a soft cloth to avoid damaging 
them.
●Do not attach accessories, stickers 
(including transpar ent stickers) or 
other items to the radar sensor, radar 
sensor cover or surrounding area.
●Do not subject the radar sensor or its 
surrounding area to a strong impact. 
If the radar sensor, front radar sensor, 
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 or radar sensor cover.
●In the following cases, the radar sensor 
must be recalibrated. Contact your 
Lexus dealer for details.
• When the radar sensor or front grille  are removed and installed, or replaced
• When the front bumper is replaced
A
B
■To avoid malfunction of the front cam-
era
Observe the following precautions.
Otherwise, the front camera may not 
operate properly, possibly leading to an 
accident resulting in death or serious 
injury.
●Keep the windshield clean at all times.
• If the windshield is dirty or covered  with an oily film, water droplets, snow, 
etc., clean 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 front 
camera.
• If the inner side of the windshield  where the front camera is installed is 
dirty, contact your Lexus dealer.
●Do not attach objects, such as stickers, 
transparent stickers, etc., to the outer 
side of the windshield in front of the 
front camera (shaded area in the illus-
tration).
From the top of the windshield to 
approximately 0.4 in. (1 cm) below 
the bottom of the front camera
Approximately 7.9 in. (20 cm) 
(Approximately 4.0 in. [10 cm] to the 
right and left from the center of the 
front camera)
A
B 
Page 207 of 484
2074-5. Using the driving support systems
LEXUS NX300h Owners  Manual_USA_M78578_en
4
Driving
WARNING
●If the part of the windshield in front of 
the front camera is fogged up or cov-
ered with condensation or ice, use the 
windshield defogger to remove the 
fog, condensation or ice. (P.292)
●If water droplets cannot be properly 
removed from the area of the wind-
shield in front of the front camera by 
the windshield wipers, replace the 
wiper insert or wiper blade.
●Do not attach window tint to the wind-
shield.
●Replace the windshield  if it is damaged 
or cracked. 
After replacing the windshield, the 
front camera must be recalibrated. 
Contact your Lexus dealer for details.
●Do not allow liquids to contact the 
front camera.
●Do not allow bright lights to shine into 
the front camera.
●Do not dirty or damage the front cam-
era. 
When cleaning the inside of the wind-
shield, do not allow glass cleaner to 
contact the lens of the front camera. 
Also, do not touch the lens. 
If the lens is dirty or damaged, contact 
your Lexus dealer.
●Do not subject the front camera to a 
strong impact.
●Do not change the installation position 
or direction of the front camera or 
remove it.
●Do not disassemble the front camera.
●Do not modify any components of the 
vehicle around the front camera 
(inside rear view mirror, etc.) or ceiling.
●Do not attach any accessories to the 
hood, front grille or  front bumper that 
may obstruct the front camera. Con-
tact 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 front cam-
era.
●Do not modify the headlights or other 
lights. 
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2084-5. Using the driving support systems
LEXUS NX300h Owners Manual_USA_M78578_en
■Certification
For vehicles sold in the U.S.A.
For vehicles sold in Canada 
Page 209 of 484
2094-5. Using the driving support systems
LEXUS NX300h Owners  Manual_USA_M78578_en
4
Driving
■If a warning message is displayed  on the multi-information display
A system may be temporarily unavailable or  there may be a malfunction in the system.
●In the following situations, perform the actions specified in the table. When the normal 
operating conditions are detected, the message will disappear and the system will 
become operational.
If the message does not disappea r, contact your Lexus dealer.
SituationActions
When the area around a sensor is covered 
with dirt, moisture (fogged up, covered with 
condensation, ice, etc. ), or other foreign 
matterTo clean the part of the windshield in front of 
the front camera, use the windshield wipers 
or the windshield defogger of the air condi-
tioning system ( P.292). 
Page 210 of 484
2104-5. Using the driving support systems
LEXUS NX300h Owners Manual_USA_M78578_en
●In the following situations, if the situation has changed (or the vehicle has been driven for 
some time) and the normal operating conditio ns are detected, the message will disappear 
and the system will  become operational.
If the message does not disappea r, contact your Lexus dealer.
• When the temperature around the radar sensor is outside of the operational range, such  as when the vehicle is in the sun or in an extremely cold environment
• When the front camera cannot detect objects in  front of the vehicle, such as when driving 
in the dark, snow, or fog, or when brig ht lights are shining into the front camera
When the temperature around the front 
camera is outside of th e operational range, 
such as when the vehicle is in the sun or in an 
extremely cold environment
If the front camera is hot, such as after the 
vehicle had been parked in the sun, use the 
air conditioning system  to decrease the tem-
perature around the front camera.
If a sunshade was used when the vehicle was 
parked, depending on its type, the sunlight 
reflected from the surface of the sunshade 
may cause the temperature of the front cam-
era to become excessively high.
If the front camera is  cold, such after the 
vehicle is parked in an extremely cold envi-
ronment, use the air conditioning system to 
increase the temperature around the front 
camera.
The area in front of the front camera is 
obstructed, such as when the hood is open 
or a sticker is attached  to the part of the 
windshield in front of the front camera.
Close the hood, remove the sticker, etc. to 
clear the obstruction.
SituationActions