2020 LEXUS NX300 horn

1333-4. Adjusting the steering wheel and mirrors
LEXUS NX300 Owners Manual_USA_M78389_en
3
Before driving
3-4.Adjusting the steering wheel and mirrors
Manual type
1 Hold the steering wheel and push
the lever down.
2 Adjust to the ideal position by mov-
ing the steering wheel horizontally
and vertically.
After adjustment, pull the lever up to
secure the steering wheel.
Power type
Operating the switch moves the steer-
ing wheel in the following directions: 1
Up
2 Down
3 Toward the driver
4 Away from the driver
■The steering wheel can be adjusted
when (power type)
The engine switch is in ACCESSORY or
IGNITION ON mode
*.
*: If the driver’s seat belt is fastened, the
steering wheel can be adjusted regard-
less of engine switch mode.
■Automatic adjustment of the steering
position (if equipped)
A desired steering posi tion can be entered
to memory and recalled automatically by
the driving position memory system.
(  P.128)
■Power easy access system (if equipped)
The steering wheel and driver’s seat move
in accordance with engine switch mode and
the driver’s seat belt condition. ( P.128)
■After adjusting the steering wheel
(manual type)
Make sure that the steering wheel is
securely locked.
The horn may not sound if the steering
wheel is not securely locked.
Steering wheel
Adjustment procedure

1343-4. Adjusting the steering wheel and mirrors
LEXUS NX300 Owners Manual_USA_M78389_en
To sound the horn, press on or close to
the mark. The height of the rear view mirror can
be adjusted to suit your driving pos-
ture.
Adjust the height of the rear view mir-
ror by moving it up and down.
Responding to the level of brightness
of the headlights of vehicles behind, the
reflected light is automatically
reduced.
Type A
Changing automatic anti-glare func-
tion mode on/off
WARNING
■Caution while driving
Do not adjust the steering wheel while
driving.
Doing so may cause the driver to mis-
handle the vehicle and cause an acci-
dent, resulting in death or serious injury.
■After adjusting the steering wheel
(manual type)
Make sure that the steering wheel is
securely locked.
Otherwise, the steering wheel may move
suddenly, possibly causing an accident,
resulting in death or serious injury.
Sounding the horn
Inside rear view mirror
The rear view mirror’s position can
be adjusted to enable sufficient
confirmation of the rear view.
Adjusting the heig ht of rear view
mirror
WARNING
■Caution while driving
Do not adjust the position of the mirror
while driving.
Doing so may lead to mishandling of the
vehicle and cause an accident, resulting
in death or serious injury.
Anti-glare function

2384-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
■If “Parking Assist Malfunction Visit Your
Dealer” is displayed on the multi-infor-
mation display
Depending on the malfunction of the sen-
sor, the device may not be working nor-
mally. Have the vehicle inspected by your
Lexus dealer.
■Sensor detectio n information
●The sensor’s detection areas are limited
to the areas around the vehicle’s bumper.
●Certain vehicle conditions and the sur-
rounding environment may affect the
ability of a sensor to correctly detect an
obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor.
(Wiping the sensors will resolve this
problem.)
• The sensor is frozen. (Thawing the area
will resolve this problem.)
In especially cold weather, if a sensor is
frozen the screen may show an abnormal
display, or obstacles may not be
detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one
side.
• On an extremely bumpy road, on an
incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines, air
brakes of large vehicles, or other loud
noises producing ultrasonic waves.
• There is another vehicle equipped with
parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong
impact.
• A backlit license plate, license plate
holder, etc., are installed.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is
not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (low- ered suspension, etc.) is installed. • People may not be detected if they are
wearing certain types of clothing.
In addition to the examples above, there are
instances in which, be cause of their shape,
signs and other objects may be judged by a
sensor to be closer than they are.
●The shape of the obstacle may prevent a
sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections pro- jecting outwards in the direction of your
vehicle
●The following situations may occur
during use.
• Depending on the shape of the obstacle and other factors, the detection distance
may shorten, or detection may be impos-
sible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at
slow speeds, there is a possibility that the
obstacle will come within the sensor’s
detection areas befo re the display is
shown and the buzzer sounds.
• Thin posts or object s lower than the sen-
sor may not be detected when
approached, even if they have been
detected once.
• It might be difficult to hear beeps due to the volume of audio system or air flow
noise of the air conditioning system.
■Customization
Some functions can be customized.
(Customizable features: P.427)

2464-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
objects or waving objects
●Low objects
●Thin objects such as wires, fences, ropes
and signposts
●Objects that are extremely close to the
bumper
■Situations in which the Parking Support
Brake function (for static objects) may
not operate
When driving with the shift lever in N
■Situations when the system may operate
even though there is no possibility of a
collision
In the following situations, the system may
operate even though there is no possibility
of a collision.
●Environmental influence
• The vehicle is driven on a narrow road
• The vehicle is driven on a gravel road or in an area with tall grass
• The vehicle is driven toward a banner or flag, a low-hanging branch or a boom
barrier (such as those used at railroad
crossings, toll gates and parking lots).
• There is a static obje ct on the shoulder of
the road (when the vehicle is driven in a
narrow tunnel, on a narrow bridge or on a
narrow road)
• The vehicle is being parallel parked
• There is a rut or hole in the surface of the road • When the vehicle is driven on a metal
cover (grating), such as those used for
drainage ditches
• The vehicle is driven on a steep slope
• The sensor is covered by water on a flooded road
●Influence from the weather
• Ice, snow, dirt, etc., has adhered to the
sensor (if removed, the system returns to
normal)
• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a
sand storm
●Influence from other sonic waves
• An ultrasonic wave source is nearby, such as the horn or clearance sonar of another
vehicle, a vehicle detector, a motorcycle
engine or the air brake of a large vehicle
• Electronic components (such as a backlit
license plate (especially fluorescent
types), fog lights, a fe nder pole or a wire-
less antenna) are installed near the sen-
sors
●Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load (the
nose tilts up or down)
• The direction of the sensor has deviated due to a collision or other impact
■Situations in which the system may not
operate normally
In the following situations, the system may
not operate normally.
●Environmental influence
• There is a static object that cannot be detected between the vehicle and
another static object that can be
detected
• A static object such as another vehicle, a motorcycle, a bicycle or a pedestrian cuts
in front of the vehicle or jumps out from
the side.
●Influence from the weather
• The area around the sensor is extremely hot or cold

2474-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
4
Driving
• The vehicle is driven on a gravel road or
in an area with tall grass
• Ice, snow, dirt, etc., has adhered to the sensor (if removed, the system returns to
normal)
• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a sand storm
●Influence from other sonic waves
• An ultrasonic wave source is nearby, such
as the horn or clearance sonar of another
vehicle, a vehicle detector, a motorcycle
engine or the air brake of a large vehicle
• Electronic components (such as a backlit license plate (especially fluorescent
types), fog lights, a fender pole or a wire-
less antenna) are installed near the sen-
sors
●Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load (the
nose tilts up or down)
• The direction of the sensor has deviated
due to a collision or other impact
■When “Parking Support Brake Unavail-
able” is displayed on the multi-informa-
tion display and the PKSB OFF indicator
flashes
●Ice, snow, dirt, etc., may have adhered to
the sensor. If this occurs, remove the ice,
snow, dirt, etc., from the sensor to return
the system to normal. Also, a warning message may be dis-
played at low temperatures due to ice
forming on the sensor, and the sensor
may not detect static objects. Once the
ice melts, the system will return to normal.
●If this message is
shown even after
removing dirt from the sensor, or shown
when the sensor was not dirty to begin
with, have the vehicle inspected by your
Lexus dealer.
●System initialization may not have been
performed after remova l and installation
of the battery. Perform system initializa-
tion.
■When removing and installing the bat-
tery
The system needs to be initialized.
The system can be initialized by driving the
vehicle straight ahead for 5 seconds or
more at a speed of approximately 22 mph
(35 km/h) or higher.
■When “Parking Support Brake Mal-
function Visit Your Dealer” is displayed
on the multi-information display, the
PKSB OFF indicator flashes and the
buzzer sounds
The system may not be operating properly.
Have the vehicle inspected by your Lexus
dealer.
WARNING
■In order for the system to operate
properly
Make sure to observe the following pre-
cautions regarding the sensors
(  P.239). Failure to observe these pre-
cautions may cause the sensors not to
operate properly, and may result in an
unexpected accident.
●Do not perform work such as modifi-
cation, disassembly or painting
●Only perform replacements using
genuine parts
●Do not subject the area around the
sensors to any impacts

3957-2. Steps to take in an emergency
LEXUS NX300 Owners Manual_USA_M78389_en
7
When trouble arises
One of the following may be the cause
of the problem:
There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle.
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting proce-
dures.( P.165)
 There may be a malfunction in the
engine immobilizer system.
( P.68)
One of the following may be the cause
of the problem:
 The battery terminal connections
may be loose or corroded.
 The battery may be discharged.
( P.400) The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine. (
P.395)
One of the following may be the cause
of the problem:
 One or both of the battery terminals
may be disconnected.
 The battery may be discharged.
( P.400)
 There may be a malfunction in the
steering lock system.
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally.
Do not use this starting procedure
except in cases of emergency.
1 Set the parking brake.
If the engine will not start
If the engine will not start even
though correct starting procedures
are being followed ( P.165), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the engine in an emer-
gency

LEXUS NX300 Owners Manual_USA_M78389_en
453What to do if... (Troubleshooting)
Is the engine switch in IGNITION
ON mode?
If you cannot release the shift lever
by depressing the brake pedal with
the engine switch in IGNITION ON
mode ( P.169)
 It is locked automatically to prevent
theft of the vehicle. ( P.165)
 Is the window lock switch pressed?
The power window except for the
one at the driver’s seat cannot be
operated if the window lock switch
is pressed. ( P.139)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not operating)
for a period of time. ( P.167)
 The seat belt reminder light is flash-
ing Are the driver and the passengers
wearing the seat belts? (
P.379,
380)
 The parking brake indicator is on
Is the parking brake released?
( P.172)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.375, 384)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm
sounds. ( P.70)
To stop the alarm, turn the engine switch to
IGNITION ON mode or start the engine.
 Is the message displayed on the
multi-information display?
Check the message on the multi-
information display. ( P.384)
 When a warning light turns on or a
warning message is displayed, refer
to P.375, 384.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
The steering wheel cannot be
turned after the engine is stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
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

460Alphabetical Index
LEXUS NX300 Owners Manual_USA_M78389_en
Heated steering wheel .............................. 287
Heaters
Automatic air conditioning system ... 279
Heated steering wheel............................ 287
Outside rear view mirrors ......................136
Seat heaters .................................................. 287
High mounted stoplight Replacing light bulb.................................. 362
Hill-start assist control ............................... 260
Hood ................................................................. 333 Open ............................................................... 333
Hooks Cargo hooks................................................ 295
Retaining hooks (floor mat)......................24
Horn ....................................................................134
I
I/M test ............................................................ 330
Identification Engine .............................................................409
Vehicle ........................................................... 408
Ignition switch (Engine switch) ................165
Illuminated entry system ........................... 289
Immobilizer system ........................................ 68
Indicators ............................................................74
Initialization Items to initialize .........................................438
Inside rear view mirror ................................134
Instrument panel light control .....................81
Interior lights.................................................. 289
Intuitive parking assist Function .......................................................... 236
Warning message..................................... 238
J
JackPositioning a floor jack............................ 333
Vehicle-equipped jack .......................... 388 Jack handle ....................................................388
Jam protection function
Moon roof ........................................................ 141
Power back door closer ............................. 111
Power windows ........................................... 138
Rear seats ........................................................ 127
K
Keyless entrySmart access system with push-button start ................................................................... 116
Wireless remote control ........................... 97
Keys...................................................................... 96 Battery-saving function.............................. 117
Electronic key .................................................96
Engine switch ................................................ 165
If the electronic key does not operate properly ....................................................... 397
If you lose your keys ................................ 396
Key number plate .........................................96
Keyless entry ........................................ 100, 116
Mechanical key .............................................. 96
Replacing the battery .............................. 356
Warning buzzer ............................................ 117
Wireless remote control key .................. 97
Knee airbags .................................................... 32
L
Lane Departure Alert with steering control (LDA) ..............................................................215
Lane Tracing Assist (LTA) ....................... 206
Language (multi-information display) 430
LATCH anchors ............................................. 57
LDA (Lane Departure Alert with steering control) ...........................................................215