2018 LEXUS NX300h alarm

122 3-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Antenna location
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the luggage compart-
ment
Antenna outside the luggage compart-
ment ■
Effective range (areas within which the
electronic key is detected)
When locking or unlocking the doors
The system can be operated when the
electronic key is within about 2.3 ft. (0.7
m) of an outside door handle. (Only the
doors detecting the key can be oper-
ated.)
When starting the hybrid system or
changing power switch modes
The system can be operated when the elec-
tronic key is inside the vehicle. ■
If an alarm sounds or a warning message
is displayed
A combination of exterior and interior
alarms as well as warning messages shown
on the multi-information display are used to
prevent theft of the vehicle and accidents
resulting from erroneous operation. Take
appropriate measures in response to any
warning message on the multi-information
display. ( → P.374)
When only an alarm sounds, circumstances
and correction procedures are as follows. ●
When an exterior alarm sounds once for
5 seconds
●
When an Interior alarm pings repeatedlySmart access system with
push-button start The following operations can be
performed simply by carrying the
electronic key (including the card
key) on your person, for example in
your pocket. The driver should
always carry the electronic key.
 Locks and unlocks the doors
( → P.106)
 Locks and unlocks the back door
( → P.110)
 Starts and stops the hybrid system
( → P.168)
A
B
C
D Situation Correction proce-
dure
An attempt was
made to lock the
vehicle while a door
was open. Close all of the
doors and lock the
doors again.A
B

124 3-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manu-
al_USA_OM78212U emit radio waves
• Portable radio, cellular phone, cordless
phone or other wireless communication
devices
• Another vehicle’s electronic key or a
wireless key that emits radio waves
• Personal computers or personal digital
assistants (PDAs)
• Digital audio players
• Portable game systems ●
If window tint with a metallic content or
metallic objects are attached to the rear
window●
When the electronic key is placed near a
battery charger or electronic devices■
Note for the entry function●
Even when the electronic key is within the
effective range (detection areas), the sys-
tem may not operate properly in the fol-
lowing cases:
• The electronic key is too close to the win-
dow or outside door handle, near the
ground, or in a high place when the doors
are locked or unlocked.
• The electronic key is near the ground or
in a high place, or too close to the rear
bumper center when the back door is
opened.
• The electronic key is on the instrument
panel, luggage room, floor, or in the door
pockets or glove box when the hybrid
system is started or power switch modes
are changed.●
Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the door
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●
As long as the electron ic key is within the
effective range, the doors may be locked
or unlocked by anyone.
●
Even if the electronic key is not inside the
vehicle, it may be possible to start the
hybrid system if the electronic key is near
the window.
●
The doors may unlock if a large amount
of water splashes on the door handle, such as in the rain or in a car wash when
the electronic key is within the effective
range. (The door will automatically be
locked after approximately 60 seconds if
the doors are not opened and closed.) ●
If the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.) ●
Touching the door lock sensor while
wearing gloves may delay or prevent lock
operation. Remove the gloves and touch
the lock sensor again. ●
When the lock operation is performed
using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given. ●
If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In that case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft.
(2 m) or more away from the vehicle.
(Take care to ensure that the key is not
stolen.)
• Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( → P.123)●
If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock all the doors.
●
The lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc. Clean the lock sensor and attempt to
operate it again.
●
A sudden approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
●
If there is another electronic key in the
detection area, it may take slightly longer

1253-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manu-
al_USA_OM78212U 3
Before driving to unlock the doors after the door handle
is gripped.■
When the vehicle is not driven for
extended periods●
To prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.●
The smart access syst em with push-but-
ton start can be deactivated in advance.■
To operate the system properly
Make sure to carry the electronic key when
operating the system. Do not get the elec-
tronic key too close to the vehicle when
operating the system from the outside of the
vehicle.
Depending on the position and holding
condition of the electronic key, the key may
not be detected correctly and the system
may not operate properly. (The alarm may
go off accidentally, or the door lock preven-
tion may not operate.) ■
If the smart access system with push-
button start does not operate properly ●
Locking and unlockin g the doors: Use
the mechanical key. ( → P.387)●
Starting the hybrid system: → P.388■
Customization
Settings (e.g. smart access system with
push-button start) can be changed. (Cus-
tomizable features: → P.419)
If the smart access system with push-button
start has been deactivated by a customized
setting, refer to the explanations for the fol-
lowing operations. ●
Locking and unlo cking the doors:
Use the wireless remote control or
mechanical key. ( → P.106, 387)●
Starting the hybrid system and changing
power switch modes: → P.388●
Stopping the hybrid system: → P.170
■
Certification for the smart access system with push-button start
For vehicles sold in the U.S.A.

314 6-1. Maintenance and care
LEXUS NX300h Owners Manu-
al_USA_OM78212U 6-1.Maintenance and care
 Working from top to bottom, liber-
ally apply water to the vehicle body,
wheel wells and underside of the
vehicle to remove any dirt and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use car
wash soap and rinse thoroughly with
water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates. If water does not bead on a clean surface,
apply wax when the vehicle body is cool.
■
Self-restoring coat
The vehicle body has a self-restoring coat-
ing that is resistant to small surface
scratches caused in a car wash etc.
●
The coating lasts for 5 to 8 years from
when the vehicle is delivered from the
plant.
●
The restoration time differs depending on
the depth of the scratch and outside tem-
perature. The restoration time may
become shorter when the coating is
warmed by applying warm water.
●
Deep scratches caused by keys, coins,
etc. cannot be restored.
●
Do not use wax that contain abrasives. ■
Automatic car washes ●
Before washing the vehicle:
• Fold the mirrors
• Turn off the power back door (if
equipped)
Start washing from the front of the vehicle.
Extend the mirrors before driving.●
Brushes used in automatic car washes
may scratch the vehicl e surface and harm
your vehicle’s paint. ●
Rear spoiler may not be washable in
some automatic car washes. There may
also be an increased risk of damage to
vehicle. ■
High pressure car washes ●
Do not allow the nozzles of the car wash
to come within close proximity of the win-
dows. ●
Before using the car wash, check that the
fuel filler door on your vehicle is closed
properly. ■
Note for a smart access system with
push-button start ●
If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. Place the key in a position 6
ft. (2 m) or more separate from the vehi-
cle while the vehicle is being washed.
(Take care to ensure that the key is not
stolen.) ●
If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a buzzer will sound outside the
vehicle. To turn off the alarm, lock all the
doors.
●
Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( → P.123)
■
Aluminum wheels
●
Remove any dirt immediately by using a
neutral detergent.
●
Wash detergent off with water immedi-
ately after use.
●
To protect the paint from damage, make
sure to observe the following precau-
tions.Cleaning and protecting the
vehicle exterior Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3897-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises ACCESSORY mode.
3 Firmly depress the brake pedal and
check that message shown on the
multi-information display.
4 Press the power switch.In the event that the hybrid system still can-
not be operated, contact your Lexus
dealer.
■
Stopping the hybrid system
Set the parking brake, shift the shift lever to
P and press the power switch as you nor-
mally do when stopping the hybrid system.
■
Electronic key battery
As the above procedure is a temporary
measure, it is recomme nded that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( → P.347)
■
Alarm
Using the mechanical key to lock the doors
will not set the alarm system. If a door is
unlocked using the mechanical key when
the alarm system is set, the alarm may be
triggered. ■
Changing power switch modes
Release the brake pe dal and press the
power switch in step 3 above.
The hybrid system does not start and modes
will be changed each time the switch is
pressed. ( → P.170)

390 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle by following the steps below.
1 Confirm that the electronic key is
being carried.When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and the doors may lock.
( → P.72) 2 Open the hood ( → P.325) and fuse
box cover.
3 Open the exclusive jump starting
terminal cover.
4 Remove the engine cover.If the 12-volt battery is dis-
charged The following procedures may be
used to start the hybrid system if the
vehicle’s 12-volt battery is dis-
charged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the hybrid system

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

447What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_OM78212U 447Alphabetical Index
Alphabetical Index A
A/C ................................................................... 268
Air conditioning filter ............................... 346
Automatic air conditioning system ...268
Micro dust and pollen filter................... 273
S-FLOW mode.......................................... 273
ABS (Anti-lock Brake System).............. 250
Function ..........................................................250
Warning light ............................................... 367
Active Sound Control (ASC) ................... 181
Air conditioning filter ................................. 346
Air conditioning system ............................ 268
Air conditioning filter ............................... 346
Automatic air conditioning system ...268
Micro dust and pollen filter................... 273
S-FLOW mode.......................................... 273
Airbags ............................................................... 32
Airbag operating conditions................... 34
Airbag precautions for your child .........37
Airbag warning light ................................366
Correct driving posture ............................ 25
Curtain shield airbag operating condi-
tions .................................................................. 34
Curtain shield airbag precautions ........37
Front passenger occupa nt classification
system ............................................................... 41
General airbag precautions ....................37
Locations of airbags.....................................32
Modification and disposal of airbags . 40
Seat cushion airbag ......................................32
Side airbag operating conditions ......... 34
Side airbag precautions .............................37
Side and curtain shield airbags operating
conditions...................................................... 34
Side and curtain shield airbags precau-
tions ...................................................................37
SRS airbag instruct ions for Canadian
owners ......................................................... 434
SRS airbags ......................................................32
SRS warning light ......................................366
Alarm ..................................................................... 71 Alarm..................................................................... 71
Warning buzzer ......................................... 372
Anchor brackets ..................................... 55, 57
Antenna (Smart access system with push-
button start) ................................................. 122
Anti-lock brake system (ABS) ............... 250
Function ......................................................... 250
Warning light ............................................... 367
Approach warning...................................... 223
Armrest............................................................ 297
ASC (Active Sound Control) ................... 181
Assist grips ..................................................... 297
Automatic air conditioning system
Air conditioning filter................................346
Automatic air conditioning system .. 268
Micro dust and pollen filter ................... 273
S-FLOW mode .......................................... 273
Automatic headlight leveling system ... 184
Automatic High Beam ............................... 186
Automatic light control system............... 184
B
Back door .......................................................... 110
Wireless remote control ........................... 113
Back-up lights
Replacing light bulb ..................................353
Battery (12-volt battery)
If the 12-volt battery is discharged ... 390
Preparing and checking before winter
.......................................................................... 257
Replacing .......................................................392
Warning light .............................................. 365
Battery (traction batter y) ............................ 64
Blind Spot Monitor (BSM)
Blind Spot Monitor function ................. 243
Rear Cross Traffic Alert function ....... 246
Bottle holders ................................................ 282