2021 LEXUS NX300h battery location

1293-2. Opening, closing and locking the doors
LEXUS NX300h Owners Manual_USA_M78578_en
3
Before driving
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 ca se, 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.127)
●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
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 system 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.412)
●Starting the hybrid system: P.413
■Customization
Settings (e.g. smart access system with
push-button start) can be changed. (Cus-
tomizable features: P.443)
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.110, 412)
●Starting the hybrid system and changing
power switch modes: P.413
●Stopping the hybrid system: P.176

2935-2. Using the air conditioning system and defogger
LEXUS NX300h Owners Manual_USA_M78578_en
5
Interior features
■When the outside temperature is low
The dehumidification function may not
operate even when “A/C” is pressed or
“A/C” is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning
system to the outside air mode.
●During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time imme-
diately after the air conditioning system is
started in automatic mode.
■Air conditioning filter
 P.368
■Air conditioning system refrigerant
●A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.
●The meaning of each symbol on the label
are as follows:
■Customization
Settings (e.g. A/C automatic mode switch
operation) can be changed.
(Customizable features: P. 443)
Caution
Air conditioning system
Air conditioning system lubri-
cant type
Requires registered techni-
cian to service air conditioning
system
Flammable refrigerant
WARNING
■To prevent the windshield from fog-
ging up
Do not use the front windshield defogger
switch during cool air operation in
extremely humid weather. The difference
between the temperature of the outside
air and that of the windshield can cause
the outer surface of the windshield to fog
up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror sur-
faces when the outside rear view mir-
ror defoggers are on.
●Vehicles with windshield wiper de-
icer: Do not touch the glass at lower
part of the windshield or to the side of
the front pillars when the windshield
wiper de-icer is on.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system
on longer than necessary when the
hybrid system is off.
■When repairing/replacing parts of
the air conditioning system
Have repair/replace ment performed by
your Lexus dealer. When a part of the air
conditioning system, such as the evapo-
rator, is to be re placed, it must be
replaced with a new one.

3326-1. Maintenance and care
LEXUS NX300h Owners Manual_USA_M78578_en
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 vehicle surface, parts
(wheel, etc.) 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
As water may enter the cabin, do not bring
the nozzle tip near the gaps around the
doors or perimeter of the windows, or spray
these areas continuously.
■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. 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.127)
■Wheels and wheel ornament
●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.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park-
Cleaning and protecting the
vehicle exterior
Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3546-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manual_USA_M78578_en
The 12-volt battery is located in the left-
hand side of luggage compartment.
■Before recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon-
nect the ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12-
volt battery
●The hybrid system may not start. Follow
the procedure below to initialize the sys-
tem.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
●Unlocking the doors using the smart
access system with pu sh-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
●Start the hybrid system with the power
switch in ACCESSORY mode. The
WARNING
■When adding washer fluid
Do not add washer fluid when the hybrid
system is hot or operating as washer fluid
contains alcohol and may catch fire if
spilled on the engine etc.
NOTICE
■Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

4097-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
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.412)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.70)
 There may be a malfunction in the
immobilizer system. ( P.75)
 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.410)
WARNING
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
■Be careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
■Driving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle body
and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
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.174)

LEXUS NX300h Owners Manual_USA_M78578_en
471Alphabetical Index
Alphabetical Index
A
A/C .....................................................................291
Air conditioning filter ...............................368
Automatic air conditioning system ..... 291
Micro dust and pollen filter................... 297
S-FLOW mode.......................................... 296
ABS (Anti-lock Brake System)...............272 Function ...........................................................272
Warning light ...............................................390
Active Sound Control (ASC) ................. 188
Adaptive Variable Suspension system (AVS) ............................................................ 273
AFS (Adaptive Front-lighting System) .192
Air conditioning filter ................................. 368
Air conditioning system ..............................291 Air conditioning filter ...............................368
Automatic air conditioning system ..... 291
Micro dust and pollen filter................... 297
S-FLOW mode.......................................... 296
Airbags ............................................................... 32 Airbag operating conditions................... 34
Airbag precautions for your child .........37
Airbag warning light ................................390
Correct driving posture ............................ 25
Curtain shield airbag operating condi-tions .................................................................. 34
Curtain shield airbag precautions ........37
Front passenger occupant 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 .........................................................458 SRS airbags...................................................... 32
SRS warning light...................................... 390
Alarm .................................................................... 77 Alarm....................................................................77
Warning buzzer ........................................ 388
Anchor brackets ..................................... 55, 57
Antenna (Smart access system with push- button start) ..................................................126
Anti-lock brake system (ABS) ................272 Function .......................................................... 272
Warning light .............................................. 390
Approach warning...................................... 243
Armrest..............................................................321
ASC (Active Sound Control) ................. 188
Assist grips .......................................................321
Automatic air conditioning system Air conditioning filter............................... 368
Automatic air conditioning system .....291
Micro dust and pollen filter ................... 297
S-FLOW mode ..........................................296
Automatic headlight leveling system ..... 191
Automatic High Beam ................................193
Automatic light control system................. 191
Auxiliary box.................................................. 307
B
Back door .......................................................... 114 Wireless remote control ........................... 117
Back-up lights Replacing light bulb ..................................375
Battery (12-volt battery) If the 12-volt battery is discharged ......414
Preparing and checking before winter.......................................................................... 279
Replacing ........................................................ 416
Warning light .............................................. 388
Battery (traction batter y) ............................ 70
Blind Spot Monitor (BSM)....................... 262 Blind Spot Monitor function .................265
Rear Cross Traffic Alert function ....... 267
Bottle holders ................................................ 306
Brake

LEXUS NX300h Owners Manual_USA_M78578_en
Alphabetical Index473
rideau ...........................................................460
Précautions générales avec les coussins gonflables ...................................................460
Cruise control Dynamic radar cruise control with full-speed range .............................................. 237
Cup holders ................................................... 306
Curtain shield airbags .................................. 32
Customizable features .............................. 443
D
Daytime running light system .................... 191
Deck board .................................................... 309
Deck under tray ........................................... 309
Defogger Outside rear view mirrors .................... 292
Rear window ................................................ 292
Windshield .................................................... 292
Differential ...................................................... 429
Dimension ...................................................... 424
Dinghy towing................................................. 173
Display BSM (Blind Spot Monitor) ................... 262
Drive information .......................................... 90
Dynamic radar cruise control with full-speed range .............................................. 237
Energy monitor.............................................. 99
Head-up display ........................................... 95
Intuitive parking assist.............................. 248
LDA (Lane Departure Alert with steering control) .........................................................227
LTA (Lane Tracing Assist)......................218
Multi-information display .......................... 89
Warning messages ..................................398
Do-it-yourself maintenance .................... 344
Door lock Back door......................................................... 115
Side doors ........................................................ 110
Smart access system with push-button start .................................................................. 126
Wireless remote control..........................107 Doors
Automatic door lock ing and unlocking
system.............................................................. 113
Back door ......................................................... 114
Door glasses ................................................. 148
Door lock .......................................................... 110
Outside rear view mirrors...................... 146
Rear door child-protectors ..................... 113
Side doors ........................................................ 110
Drive information ........................................... 90
Drive-start control ............................. 157, 180
Driver’s seat belt remi nder light ............ 393
Driver’s seat position memory ................ 138
Driving Break-in tips ...................................................157
Correct posture............................................. 25
Driving mode select switch .................. 270
Hybrid vehicle driving tips .................... 277
Procedures .................................................... 156
Winter drive tips ......................................... 279
Driving position memory........................... 138 Memory recall function............................ 139
Dynamic radar cruise control with full- speed rangeFunction .......................................................... 237
E
E-Four .............................................................. 273
ECB (Electronically Controlled Brake Sys-
tem) .................................................................272
Eco mode........................................................ 270
EDR (Event data recorder) ........................... 8
Electric motor Location ............................................................. 67
Specification ................................................. 426
Electric Power Steering (EPS) Function .......................................................... 272
Warning light .............................................. 390
Electronic key Battery-saving function............................. 127
If the electronic key does not operate properly .........................................................412

LEXUS NX300h Owners Manual_USA_M78578_en
Alphabetical Index475
Replacing light bulbs................................ 376
Wattage............................................................ 431
Front turn signal lights Replacing light bulbs.................... 375, 376
Turn signal lever .......................................... 183
Wattage............................................................ 431
Fuel Capacity ......................................................... 425
Fuel gauge ....................................................... 84
Gas station information..........................484
Information .................................................... 432
Refueling ........................................................ 203
Type.................................................................. 425
Warning light ............................................... 393
Fuel filler door ............................................... 203 Refueling ........................................................ 203
When the fuel filler door cannot be opened ............................................................411
Fuses ................................................................... 371
G
Garage door opener ................................. 322
Gas station information ............................ 484
Gauges ............................................................... 84
Glove box ....................................................... 306
Glove box light ............................................. 306
Grocery bag hooks .................................... 309
H
Head restraints ................................................ 141
Head-up display.............................................. 95
Headlights ....................................................... 190 Automatic headlight leveling .................. 191
Automatic High Beam ..............................193
Light switch .................................................... 190
Replacing light bulbs................................ 375
Heated steering wheel ..............................300
Heaters Automatic air conditioning system ..... 291
Heated steering wheel............................ 299
Outside rear view mirrors .................... 292 Seat heaters ................................................. 300
High mounted stoplight Replacing light bulb ..................................375
Hill-start assist control ............................... 273
Hood ................................................................. 346 Open................................................................346
Hooks Cargo hooks............................................... 308
Retaining hooks (floor mat) ..................... 24
Horn ....................................................................144
Hybrid battery (traction battery) Location ............................................................. 70
Specification ................................................. 426
Hybrid battery air vent ..................................72
Hybrid system ...................................................67 Acoustic vehicle alerting system...........69
Emergency shut off system...................... 73
Energy monitor/consumption screen99
EV drive mode............................................. 178
High voltage components ....................... 70
Hybrid System Indicator ........................... 87
Hybrid system precautions...................... 70
Hybrid vehicle driving tips .................... 277
If the hybrid system will not start ....... 409
Overheating .................................................. 418
Power switch..................................................174
Regenerative braking .................................68
Starting the hybrid system .......................174
Warning lights ............................................ 388
Hybrid System Indicator......................84, 87
Hybrid transmission..................................... 180
I
I/M test ............................................................ 342
Identification Engine..............................................................425
Vehicle ............................................................ 424
Ignition switch (Power switch) ................. 174
Illuminated entry system ........................... 302
Immobilizer system........................................ 75
Indicators ........................................................... 82