2019 LEXUS NX300H child lock

3907-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_M78287_en
■Unlocking the door
1 Insert the mechanical key while
pulling on the driver’s door handle.
2 Turn the key in order to perform the
following operations.
Unlocking the door
Opens the windows and moon
roof
* (turn and hold)
Closes the windows and moon
roof
* (turn and hold)
*: This setting must be customized at your Lexus dealer
3 Remove the key, return the handle,
and then pull the handle again.
■Locking the door
1 Move the inside lock button to the
lock position.
2 Close the door.
1 Ensure that the shift lever is in P and
depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the power switch.
When the electronic key is detected, a
buzzer sounds and the power switch will
turn to ON mode.
When the smart access system with push-
button start is deactivated in customization
setting, the power switch will turn to
A
B
C
WARNING
■When using the mechanical key and
operating the power windows or
moon roof
Operate the power window or moon
roof after checking to make sure that
there is no possibility of any passenger
having any of their body parts caught in
the window or moon roof.
Also, do not allow children to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window or moon roof.
Starting the hybrid system

444What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_M78287_en
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
 If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.388)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.388)
 Is the electronic key battery weak or
depleted? ( P.349)
 Is the power switch in ON mode?
When locking the doors, turn the
power switch off. ( P.170)
 Is the electronic key left inside the
vehicle?
When locking the doors, make sure
that you have the electronic key on
your person.
 The function may not operate prop- erly due to the condition of the radio
wave. (
P.121)
 Is the child-protector lock set?
The rear door cannot be opened
from inside the vehicle when the
lock is set. Open the rear door from
outside and then unlock the child-
protector lock. ( P.107)
 Did you press the power switch
while firmly depressing the brake
pedal? ( P.168)
 Is the shift lever in P? ( P.168)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.120)
 Is the steering wheel unlocked?
( P.169)
 Is the electronic key battery weak or
depleted?
In this case, the hybrid system can
be started in a temporary way.
( P.390)
 Is the 12-volt battery discharged?
( P.392)
If you have a problem, check the
following before contacting your
Lexus dealer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The electronic key does not oper-
ate properly
The doors cannot be locked or
unlocked
The rear door cannot be opened
If you think something is wrong
The hybrid system does not start

447What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_M78287_en447Alphabetical Index
Alphabetical Index
A
A/C ................................................................... 266 Air conditioning filter ...............................348
Automatic air conditioning system ... 266
Micro dust and pollen filter..................... 271
S-FLOW mode............................................ 271
ABS (Anti-lock Brake System).............. 249 Function .......................................................... 249
Warning light ...............................................369
Active Sound Control (ASC) ................... 181
AFS (Adaptive Front-lighting System) 184
Air conditioning filter ................................. 348
Air conditioning system ............................ 266 Air conditioning filter ...............................348
Automatic air conditioning system ... 266
Micro dust and pollen filter..................... 271
S-FLOW mode............................................ 271
Airbags ............................................................... 32 Airbag operating conditions................... 34
Airbag precautions for your child .........37
Airbag warning light ................................369
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 ......................................................... 434
SRS airbags ......................................................32
SRS warning light ......................................369 Alarm ..................................................................... 71
Alarm..................................................................... 71
Anchor brackets ..................................... 55, 57
Antenna (Smart access system with push- button start) ..................................................120
Anti-lock brake system (ABS) ............... 249 Function .......................................................... 249
Warning light .............................................. 369
Approach warning...................................... 222
Armrest............................................................ 295
ASC (Active Sound Control) ................... 181
Assist grips ..................................................... 295
Automatic air conditioning system Air conditioning filter............................... 348
Automatic air conditioning system ...266
Micro dust and pollen filter ..................... 271
S-FLOW mode ............................................ 271
Automatic headlight leveling system ... 183
Automatic High Beam ............................... 185
Automatic light control system............... 183
B
Back door ........................................................ 108 Wireless remote control ............................. 111
Back-up lights Replacing light bulb ................................. 355
Battery (12-volt battery) If the 12-volt battery is discharged ....392
Preparing and checking before winter..........................................................................256
Replacing .......................................................394
Warning light ............................................... 367
Battery (traction batter y) ............................ 64
Blind Spot Monitor (BSM)......................... 241 Blind Spot Monitor function ................. 243
Rear Cross Traffic Alert function .......245
Bottle holders ................................................280

448Alphabetical Index
LEXUS NX300h Owners Manu-
al_USA_M78287_en
Brake Brake Hold ..................................................... 179
Fluid .................................................................. 407
Parking brake ................................................ 177
Regenerative braking ................................. 62
Warning light ...............................................368
Brake assist .................................................... 249
Brake Hold ....................................................... 179
Break-in tips...................................................... 151
Brightness control Instrument panel light control ................ 83
BSM (Blind Spot Monitor)......................... 241 Blind Spot Monitor function................. 243
Rear Cross Traffic Alert function....... 245
BSM (Blind Spot Monitor) main switch241
C
Card key .......................................................... 100
Care Aluminum wheels ........................................ 312
Exterior .............................................................315
Interior ...............................................................315
Seat belts..........................................................315
Cargo capacity.........................155, 158, 402
Cargo hooks ................................................. 282
Cargo net hooks .......................................... 282
Chains .............................................................. 257
Child restraint system....................................47 Booster seats installation .......................... 53
Convertible seats installation.................. 52
Front passenger occupant classification system ............................................................... 41
Infant seats installation .................................. 51
Installing CRS with LATCH anchors . 55
Installing CRS with seat belts.................... 51
Installing CRS with top tether strap..... 57
LATCH anchors ........................................... 55 Child safety ....................................................... 46
12-volt battery precautions ...... 335, 395
Airbag precautions ...................................... 37
Back door precautions ............................ 108
Child restraint system ................................. 47
How your child should wear the seat belt............................................................................. 28
Installing child restraints............................. 47
Moon roof precautions............................ 146
Power window lock switch .....................143
Power window precautions ...................143
Rear door child-protectors ................... 107
Removed key battery precautions... 350
Seat belt extender precautions.............. 28
Seat belt precautions .................................. 46
Seat heater precautions.......................... 273
Child-protectors............................................107
Cleaning ..................................................312, 315 Aluminum wheels ........................................312
Exterior..............................................................312
Interior .............................................................. 315
Seat belts ......................................................... 315
Clock ................................................................ 286
Compass .......................................................... 301
Condenser ..................................................... 332
Console box ..................................................280
Consumption screen .................................... 93
Coolant Capacity ........................................................ 405
Checking ........................................................ 331
Preparing and checking before winter..........................................................................256
Warning light .............................................. 368
Cooling system...............................................331 Hybrid system overheating ................. 396
Cornering lights ............................................ 184
Cruise control Dynamic radar cruise control with full-
speed range ................................................ 217
Cup holders ...................................................280
Curtain shield airbags .................................. 32
Customizable features ................................ 421

449What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_M78287_en449Alphabetical Index
D
Daytime running light system .................. 183
Deck board .................................................... 283
Deck under tray ........................................... 283
Defogger Outside rear view mirrors .................... 267
Rear window ................................................ 267
Windshield .................................................... 267
Differential ...................................................... 407
Dimension ...................................................... 402
Dinghy towing................................................. 167
Display BSM (Blind Spot Monitor) ..................... 241
Drive information ..........................................85
Dynamic radar cruise control with full-speed range ................................................ 217
Energy monitor.............................................. 93
Head-up display ........................................... 89
Intuitive parking assist...............................227
LDA (Lane Departure Alert with steering control) ........................................................209
Multi-information display .......................... 84
Warning messages .................................. 376
Do-it-yourself maintenance .................... 324
Door lock Back door....................................................... 109
Side doors ...................................................... 104
Smart access system with push-button start ..................................................................120
Wireless remote control........................... 101
Doors Automatic door lock ing and unlocking
system ............................................................107
Back door....................................................... 108
Door glasses .................................................. 142
Door lock........................................................ 104
Outside rear view mirrors ..................... 140
Rear door child-protectors ....................107
Side doors ...................................................... 104
Drive information ........................................... 85
Drive-start control ............................... 151, 173 Driver’s seat belt reminder light .............. 371
Driver’s seat position memory .................132
Driving
Break-in tips .................................................... 151
Correct posture............................................. 25
Driving mode select switch ..................248
Hybrid vehicle driving tips ....................254
Procedures .................................................... 150
Winter drive tips .........................................256
Driving position memory............................132 Memory recall function............................ 133
Dynamic radar cruise control with full- speed rangeFunction ............................................................ 217
Warning message ..................................... 224
E
E-Four .............................................................. 250
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 249
Eco mode........................................................ 248
EDR (Event data recorder) ............................7
Electric motor Location ...............................................................61
Specification ................................................ 403
Electric Power Steering (EPS) Function .......................................................... 249
Warning light .............................................. 369
Electronic key Battery-saving function.............................. 121
If the electronic key does not operate properly ...................................................... 389
Replacing the battery ...............................349
Electronically Controlled Brake System (ECB) ............................................................ 249
Emergency flashers .................................... 360

455What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
al_USA_M78287_en455Alphabetical Index
R
Radar cruise control (dynamic radar cruise control with full-speed range)............... 217
Radiator ........................................................... 332
Rear Cross Traffic Alert ........................... 245
Rear seat Folding down the rear seatbacks........128
Rear side marker lights Light switch .....................................................182
Replacing light bulbs................................355
Rear turn signal lights Replacing light bulb..................................355
Turn signal lever ........................................... 176
Rear view mirror Inside rear view mirror............................. 138
Outside rear view mirrors ..................... 140
Rear window defogger ..............................267
Rear window wiper.......................................193
Refueling ...........................................................195 Capacity .........................................................403
Fuel types.......................................................403
Opening the fuel tank cap ..................... 195
When the fuel filler door cannot be opened ........................................................389
Regenerative braking ................................... 62
Remote Touch .............................................. 262
Replacing Electronic key battery.............................. 349
Fuses ..................................................................351
Light bulbs.....................................................355
Tires .................................................................. 379
Reporting safety defects for U.S. owners .......................................................................... 432
Resetting the message indicating mainte- nance is required ........................................319
Road accident cautions ............................... 65
S
S-FLOW mode .............................................. 271
Safety Connect............................................. 304
Seat belts............................................................ 26 Adjusting the seat belt shoulder anchor height .................................................................31
Automatic Locking Retractor................. 28
Child restraint system installation ......... 47
Cleaning and maintaining the seat belt ........................................................................... 315
Emergency Locking Retractor .............. 28
How to wear your seat belt ..................... 27
How your child should wear the seat belt ............................................................................. 28
Pregnant women, proper seat belt use ............................................................................. 27
Reminder light and buzzer ......... 371, 372
Seat belt extender......................................... 28
Seat belt instructions for Canadian own- ers ................................................................... 432
Seat belt pretensioners ................................31
SRS warning light...................................... 369
Seat heaters ................................................... 273
Seat position memory..................................132
Seat ventilators ............................................. 275
Seating capacity............................................ 158
Seats Adjustment ............................................126, 127
Adjustment precautions ................ 126, 128
Child seats/child restraint system installa-tion .................................................................... 47
Cleaning .......................................................... 315
Driving position memory .........................132
Folding down the rear seatbacks ....... 128
Front seat heaters ...................................... 274
Head restraint ............................................... 135
Power easy access system .....................132
Properly sitting in the seat ........................ 25
Rear seat heaters ....................................... 274
Seat position memory ...............................132
Seat ventilators ............................................ 275