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2174-2. Driving procedures
4
Driving
NX300h_U_OM78007U ■
If “Brake Hold Fault Depress Brake to Deacti vate Visit Your Dealer” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer. ■
Warning messages and buzzers
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution. If a warn ing message is shown on the multi-information
display, read the message and follow the instructions.■
If the brake hold operated indicator flashes
P. 5 6 6
WA R N I N G ■
When the vehicle is on a steep incline
When using the brake hold system on a stee p incline exercise caution. The brake hold
function may not hold the vehicle in such a situation. ■
When stopped on a slippery road
The system cannot stop the vehicle when the gripping ability of the tires has been
exceeded. Do not use the system when stopped on a slippery road.
NOTICE ■
When parking the vehicle
The brake hold system is not designed for use when parking the vehicle for a long
period of time. Turning the power switch off while the system is holding the brake may
release the brake, which would cause the vehicle to move. When operating the power
switch, depress the brake pedal, shift the shift lever to P and set the parking brake.
Page 218 of 681

218 4-2. Driving procedures
NX300h_U_OM78007UASC (Active Sound Control)
Louder
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. ■
The ASC system can be operated when
The driving mode select switch is in normal mode or sport mode.■
Temporary cancelation of the ASC system functions
The ASC system may be temporarily cancele d depending on the driving conditions,
such as when the tires slip due to sudden acceleration.
: If equippedThe ASC system is an electronic sound system that generates engine sound,
conveying the kinetic situations of the vehicle’s accelerati on and deceleration
to the driver through the speake rs inside the instrument panel.
The vehicle’s response to the driver’s acceleration behavior and shift opera-
tions are also conveyed in sound.
When sport mode is selected, the sound co nveyed to the driver will be louder.
Controlling volume 1
2
Page 219 of 681
2194-3. Operating the lights and wipers
4
Driving
NX300h_U_OM78007UHeadlight switch Turning the end of the lever turns on the lights as follows:
Ty p e A
The side marker, parking,
tail, license plate, daytime
running lights, instrument
panel and switch lights turn
on.
The headlights and all the
lights listed above (except
daytime running lights) turn
on.
The headlights and all the
lights listed above turn on
and off automatically (when
the power switch is in ON
mode).
The daytime running lights
turn off.The headlights can be operated manually or automatically.
Operating instructions 1
2
3
4
Page 220 of 681
220 4-3. Operating the lights and wipers
NX300h_U_OM78007U
Ty p e B
The side marker, parking,
tail, license plate, daytime
running lights, instrument
panel and switch lights turn
on.
The headlights and all the
lights listed above (except
daytime running lights) turn
on.
The headlights and all the
lights listed above turn on
and off automatically (when
the power switch is in ON
mode).
The daytime running lights
turn on.
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.
Pull 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. 1
2
3
4
Turning on the high beam headlights 1
2
Page 221 of 681

2214-3. Operating the lights and wipers
4
Driving
NX300h_U_OM78007U ■
Daytime running light system ●
To make your vehicle more visible to other dr ivers, the front parking lights turn on auto-
matically (at an increased inte nsity) whenever the hybrid system is started and the park-
ing brake is released. Daytime running lights are not designed for use at night.
Type A only: Daytime running lights can be tu rned off by operating the headlight switch
to “DRL OFF” position. ●
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
■
Automatic light off system ●
When the headlights come on: The headlights 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 . ■
Automatic headlight leveling system (if equipped)
The level of the headlights is automatically ad justed according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users. ■
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. ■
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 swit ch is turned off the 12-volt battery saving
function will operate and automatically turn off all the lights after approximately 20 min-
utes. When the power switch is turned to ON mode, the 12-volt battery-saving function
will be disabled.
When any of the following are performed, the 12-volt battery-saving function is canceled
once and then reactivated. All the lights w ill 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 closedThe sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.
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222 4-3. Operating the lights and wipers
NX300h_U_OM78007U ■
Customization
Settings (e.g. light sensor se nsitivity) can be changed.
(Customizable features: P. 636)
NOTICE ■
To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.
Page 223 of 681
2234-3. Operating the lights and wipers
4
Driving
NX300h_U_OM78007UAutomatic High Beam
Push the lever away from you with
the headlight switch in or
position.
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 sys-
tem is active.
: If equippedThe Automatic High Beam uses an in-v ehicle camera sensor to assess the
brightness of streetlights, the lights of oncoming and preceding vehicles, etc.,
and automatically turns high be am on or off as necessary.
Activating the Automatic High Beam system 1
2
Page 224 of 681

224 4-3. Operating the lights and wipers
NX300h_U_OM78007U When all of the following conditions are fulfilled, high beam will be automatically
turned on: ●
Vehicle speed is above approximately 34 km/h (21 mph). ●
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 fulfilled, high beam will be automatically
turned off: ●
Vehicle speed drops below approximately 27 km/h (17 mph). ●
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. ■
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 acti-
vate the Automatic High Beam sys-
tem again.
■
Switching to high beam
Press the Automatic High Beam
switch. The Automatic High Beam indicator
will turn off and the high beam indi-
cator will turn on.
Press the switch to activate the Auto-
matic High Beam system again.High beam automatic turning on or off conditions
Turning the high beam on/off manually