LEXUS NX300H 2019 Owners Manual
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1814-2. Driving procedures
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Driving
*:If equipped
1 Louder
2 Lower
The indicator comes on when the ASC 
system is on.
When the dial is turned to the lowest 
volume, the ASC system will be turned 
off and the indicator will go off.
■Operating conditions
When the driving mode select switch is not  in Eco mode or EV drive mode.
■Temporary cancelation of the ASC sys-
tem functions
The ASC system may be temporarily can-
celed depending on the driving conditions, 
such as when the tires slip due to sudden 
acceleration.ASC (Active Sound Con-
trol)*
The ASC system is an electronic 
sound system that generates 
engine sound, conveying the 
kinetic situations of the vehicle’s 
acceleration and deceleration to 
the driver throug h the speakers 
inside the instrument panel.
The vehicle’s response to the 
driver’s accelerati on behavior and 
shift operations are also conveyed 
in sound. 
When Sport mode is selected, the 
sound conveyed to the driver will be 
louder.
Controlling volume 
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1824-3. Operating the lights and wipers
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4-3.Operating the lights and wipers
Turning the   switch turns on the 
lights as follows:
Type A
1  The side marker, parking, tail, 
license plate, instrument panel 
lights, and daytime running lights 
( P.183) turn on.
2  The headlights and all the 
lights listed above (except daytime 
running lights) turn on.
3  The headlights, daytime run-
ning lights ( P.183) and all the 
lights listed above  turn on and off  automatically.
4  The daytime running lights 
turn off.
Type B
1  The side marker, parking, tail, 
license plate, instrument panel 
lights, and daytime running lights 
( P.183) turn on.
2  The headlights and all the 
lights listed above (except daytime 
running lights) turn on.
3  The headlights, daytime run-
ning lights ( P.183) and all the 
lights listed above turn on and off 
automatically (when the power 
switch is in ON mode).
4  The daytime running lights 
turn on. ( P.183)
Headlight switch
The headlights can be operated 
manually or automatically.
Turning on the headlights 
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1834-3. Operating the lights and wipers
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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. 
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1844-3. Operating the lights and wipers
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al_USA_M78287_enWhen any of the following are performed, 
the 12-volt battery-saving function is can-
celed once and then reactivated. All the 
lights will turn off automatically 20 minutes 
after the 12-volt battery-saving function has 
been reactivated:
●When the headlight switch is operated
●When a door is opened or closed
■Customization
Settings (e.g. light sens or sensitivity) can be 
changed. (Customizable features:  P.421)
1 With the headlights on, push the 
lever away from you to turn on the 
high beams.
Pull the lever toward you to the center 
position to turn the high beams off.
2Pull the lever toward you and 
release it to flash the high beams 
once.
You can flash the high beams with the 
headlights on or off.
When the following conditions are met, 
while the headlights (low beam) are on, 
the cornering lights will additionally 
turn on and light up the direction of 
movement for the vehicle. This is to 
ensure excellent visibility when either 
driving at intersections or parking at 
night.
The steering wheel is operated
 The turn signal lever is operated
 The shift lever is in R
■Cornering light control
●However, when vehicle speed is 25 mph 
(40 km/h) or above, the cornering lights 
do not turn on.
●After the lights remain illuminated for 30 
minutes, they automatically turn off.
AFS (Adaptive Front-lighting System) 
secures excellent visibility at intersec-
tions and on curves by automatically 
adjusting the direction of the light axis 
of the headlights according to vehicle 
speed and the degree of the tire’s angle 
as controlled by steering input.
AFS operates at speeds of 6 mph (10 km/
h) or higher.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than 
necessary when the hy brid system is off.
Turning on the high beam head-
lights
Cornering lights (if equipped)
AFS (Adaptive Front-lighting 
System) (if equipped) 
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1854-3. Operating the lights and wipers
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Driving
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 
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.
WARNING
■Limitations of the Automatic High 
Beam
Do not rely on the Automatic High 
Beam. Always drive sa fely, taking care to 
observe your surroundings and turning 
high beam on or off manually if neces-
sary.
Activating the Automatic High 
Beam system 
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1864-3. Operating the lights and wipers
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al_USA_M78287_encurves, road dividers or roadside trees
●High beam may be turned off if an 
oncoming vehicle that is using fog lights 
without using the head
lights 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,  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.
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. 
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1874-3. Operating the lights and wipers
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Driving
■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 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.
●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 
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1884-3. Operating the lights and wipers
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1 Turns the fog lights off
2  Turns the fog lights on
■Fog lights can be used when
The headlights are on in low beam.
Operate   lever as follows to select 
the wiper operation.
■Intermittent windshield wipers with 
interval adjuster (if equipped)
Type A
1  Off
2  Intermittent operation
Fog light switch
When in difficult driving conditions, 
such as in rain and fog, turn on the 
front fog lights to secure front visi-
bility and turn on  the rear fog lights 
to notify following vehicles the exis-
tence of your vehicle.
Operating procedure
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than 
necessary when the hy brid system is off.
Windshield wipers and 
washer
Operating the lever can switch 
between automatic operation and 
manual operation, or can use the 
washer.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may dam-
age the windshield.
Operating the wiper lever 
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1894-3. Operating the lights and wipers
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3  Low speed operation
4  High speed operation
5  Temporary operation
Wiper intervals can be adjusted when 
intermittent operation is selected.
6 Increases the intermittent wind-
shield wiper frequency
7 Decreases the intermittent wind-
shield wiper frequency
8 Washer/wiper dual operation
The 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.
Type B
1  Off
2  Intermittent operation
3  Low speed operation
4  High speed operation
5  Temporary operation
Wiper intervals can be adjusted when 
intermittent operation is selected.
6 Increases the intermittent wind-
shield wiper frequency
7 Decreases the intermittent wind-
shield wiper frequency 
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1904-3. Operating the lights and wipers
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8Washer/wiper dual operation
The 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.