horn LEXUS NX300h 2018 Owners Manual

1393-4. Adjusting the steering wheel and mirrors
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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
The power switch is in ACCESSORY or
ON mode *
. *
: If the driver’s seat belt is fastened, the
steering wheel can be adjusted regard-
less of power 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.134) ■
Power easy access system
The steering wheel and driver’s seat move
in accordance with power switch mode and
the driver’s seat belt condition. ( → P.134)
■
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

140 3-4. Adjusting the steering wheel and mirrors
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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/offWARNING■
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,
and resulting in deat h 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

2294-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving ■
Muting the buzzer sound●
To mute the buzzer sound
The buzzer can be temporarily muted by
pressing of the meter control
switches while an obstacle detection dis-
play is shown on the multi-information
display.●
To cancel the mute
Mute will be automatically cancelled in
the following situations.
• When the shift position is changed
• When the vehicle speed has reached or
exceeded approximately 6 mph (10 km/
h) with the shift lever in D
• When the intuitive par king assist is turned
off once and turned on again
• When the power switch is turned off once
and turned to ON mode again
• When a sensor is malfunctioning ■
Certification 
For vehicles sold in the U.S.A.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions; (1) this device may
not cause harmful interference, and (2) this
device must accept any interference
received, including interference that may
cause undesired operation. 
For vehicles sold in Canada
This ISM device complies with Canadian
ICES-001.
Cet appareil ISM est conforme a la norme
NMB-001 du Canada. ■
Intuitive parking assist display
When an obstacle is detected while the
Lexus parking assist monitor is in use, the
warning indicator will appear in the upper
corner of the screen even if the display set-
ting has been set to off.
■
If “Clean Parking Assist Sensor” is dis-
played on the multi-information display
A sensor may be dirty or covered with snow
or ice. In such cases, if it is removed from
the sensor, the system should return to nor-
mal.
Also, due to the sensor being frozen at low
temperatures, a malfunction display may
appear or an obstacle may not be detected. If the sensor thaws out, the system should
return to normal. ■
If “Parking Assist Malfunction” is dis-
played on the multi-information display
Depending on the malf unction of the sen-
sor, the device may not be working nor-
mally. Have the vehicle inspected by your
Lexus dealer. ■
Sensor detection information ●
The sensor’s detectio n 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-

238 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 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 fender pole or a wire-
less antenna) are inst alled 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 an obstacle that cannot be
detected between the vehicle and
another obstacle that can be detected
• An obstacle 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
• The wind is strong • 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 ■
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 obstacles. Once the ice
melts, the system wi ll 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

3857-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises
One of the following may be the cause
of the problem:
 The electronic key may not be func-
tioning properly. ( → P.387)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( → P.64)
 There may be a malfunction in the
immobilizer system. ( → P.69)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
( → P.385) One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( → P.390)
 The 12-volt battery terminal con-
nections may be lo ose or corroded.
( → P.333)
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( → P.390)
 One or both of the 12-volt battery
terminals may be disconnected.
( → P.333) Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the hybrid syst em does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure
except in cases of emergency.If the hybrid system will not
start Reasons for the hybrid system not
starting vary depending on the situ-
ation.
Check the following and perform
the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
( → P.168) The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.
The interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the hybrid system in an
emergency

445What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U 445What to do if... (Troubleshooting)
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON mode
( → P.174)
 It is locked automatically to prevent
theft of the vehicle. ( → P.169)
 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.145)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode (the
hybrid system is not operating) for a
period of time. ( → P.170)
 The seat belt reminder light is flash-
ing
Are the driver and the front passen-
ger wearing the seat belts?
( → P.369)
 The parking brake indicator is on
Is the parking brake released? ( → P.177)
Depending on the situation, other
types of warning buzzer may also
sound. ( → P.365, 374)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm
sounds. ( → P.71)
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.374)
 When a warning light turns on or a
warning message is displayed, refer
to P.365, 374.
 Stop the vehicle in a safe place and
replace the flat tire with the spare The steering wheel cannot be
turned after the hybrid system is
stopped
The windows do not open or
close by operating the power
window switches
The power 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
When a problem has occurred If you have a flat tire

451What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U Alphabetical Index
451Refueling ..........................................................196
When the fuel filler door cannot be
opened ........................................................ 387
Fuses ................................................................. 349 G
Garage door opener ................................. 298
Gas station information ............................ 460
Gauges ................................................................79
Glove box ....................................................... 282
Glove box light ............................................. 282
Grocery bag hooks .................................... 285 H
Head restraints ............................................... 137
Head-up display.............................................. 90
Headlights ....................................................... 183
Automatic headlight leveling ................ 184
Automatic High Beam ............................. 186
Light switch .................................................... 183
Replacing light bulbs................................ 353
Heated steering wheel ...............................276
Heaters
Automatic air conditioning system ...268
Heated steering wheel............................ 275
Outside rear view mirrors .................... 269
Seat heaters .................................................. 275
High mounted stoplight
Replacing light bulb..................................353
Hill-start assist control ............................... 250
Hood ................................................................. 325
Warning message........................... 107, 374
Hooks
Cargo hooks................................................ 284
Retaining hooks (floor mat)......................24
Horn ................................................................... 140
Hybrid battery (traction battery)
Location............................................................. 64
Specification ................................................. 402
Hybrid battery air vent ................................. 66
Hybrid system .................................................... 61 Emergency shut off system...................... 67
Energy monitor/consumption screen 94
EV drive mode............................................... 171
High voltage components ....................... 64
Hybrid System Indicator ........................... 82
Hybrid system precautions...................... 64
Hybrid vehicle driving tips ....................255
If the hybrid system will not start ....... 385
Overheating .................................................394
Power switch................................................. 168
Regenerative braking ................................. 62
Starting the hybrid system ...................... 168
Vehicle proximity noti fication system. 63
Hybrid System Indicator.............................. 82
Hybrid transmission...................................... 173
I
I/M test ............................................................ 322
Identification
Engine............................................................... 401
Vehicle ........................................................... 400
Ignition switch (Power switch) ................ 168
Illuminated entry system ........................... 278
Immobilizer system........................................ 69
Indicators ............................................................74
Initialization
Engine oil maintenance data................329
Items to initialize ......................................... 429
Tire pressure warning system ...............341
Inside rear view mirror ............................... 140
Instrument panel light control ................... 84
Interior lights.................................................. 278
Intuitive parking assist
Function .......................................................... 227
Warning message ..................................... 229