key LEXUS NX300H 2019 Workshop Manual

3917-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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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.
■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)

3927-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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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.
1Confirm 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.326) 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

3947-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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■Starting the hybrid system when the 12-
volt battery is discharged
The hybrid system cannot be started by
push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio sys-
tem while the hybrid system is off.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradua lly even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the hybrid system may be
unable to start. (The 12-volt battery
recharges automatically while the hybrid
system is operating.)
■When the 12-volt battery is removed or
discharged
●In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.
●The hybrid system may not start on the
first attempt after the 12-volt battery has
recharged but will start normally after the
second attempt. This is not a malfunction.
●The power switch mode is memorized by
the vehicle. When the 12-volt battery is
reconnected, the system will return to the
mode it was in before the 12-volt battery
was discharged. Before disconnecting
the 12-volt battery, turn the power switch
off.
If you are unsure what mode the power
switch was in before the 12-volt battery
discharged, be especially careful when
reconnecting the 12-volt battery.
●Some systems may require initialization.
■When replacing the 12-volt battery
●Use a 12-volt battery that the case size is
same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent
(60Ah) or greater, and performance rat-
ing (CCA) is equivalent (460A) or
greater.
• If the sizes differ, the 12-volt battery can-
not be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, the 12-volt battery
may discharge and hybrid system may
not be able to start.
●After exchanging, firmly attach the fol-
lowing items to the exhaust hole of the 12-
volt battery.
• Use the exhaust hose that was attached to the 12-volt battery before
exchanging and confirm that it is firmly
connected to the hole section of the vehi-
cle.
• Use the exhaust hole plug included
with the 12-volt battery exchanged or the
one installed on the battery prior to the
exchange. (Depending on the 12-volt
battery to be exchanged, the exhaust
hole may be plugged.)
For details, consult your Lexus dealer.
C
A
B

4228-2. Customization
LEXUS NX300h Owners Manu-
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Definition of symbols: O = Available, – =Not available
■Door lock (P.104, 389)
■Smart access system with push-butto n start and wireless remote control
(  P.104, 120)
FunctionDefault settingCustomized set-
ting
Unlocking using a mechani-
cal key
Driver’s door
unlocked in first
step, all doors
unlocked in sec-
ond step
All doors
unlocked in first
step
——O—
Automatic door locking func-
tionShift position
linked door lock-
ing operationOffO—O—
Speed linked
door locking
operation
O—O—
Automatic door unlocking
function
Shift position
linked door
unlocking opera-
tionOffO—O—
Driver’s door
linked door
unlocking opera-
tion
O—O—
FunctionDefault settingCustomized set-ting
Operation signal (emergency
flashers)OnOffO—O—
Operation buzzer volume5OffO—O—1 to 7
Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked
60 seconds
Off
O—O—30 seconds
120 seconds
Open door reminder buzzer
(When locking the vehicle)OnOff——O—
ABCD
ABCD

4248-2. Customization
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■Lights (P.182)
■Illumination ( P.276)
■Multi-information display ( P.79, 84)
FunctionDefault settingCustomized set-
ting
Daytime Running Lights
(Daytime running lights can
be disabled)
OnOffO—O—
FunctionDefault settingCustomized set-ting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O—7.5 seconds
30 seconds
Time elapsed before the exte-
rior lights turn off15 seconds
Off
O—O—7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff——O—
Operation when the doors
are unlockedOnOff——O—
Operation when you
approach the vehicle with the
electronic key on your person
OnOff——O—
Footwell lightingOnOff——O—
Fading out of the outer foot
lights when they turn offLongShort——O—
FunctionDefault settingCustomized set-ting
Changeover to tachometer
when Sport mode is selectedAuto
Hybrid system
indicator (always)
—O——Tachometer (always)
EV indicatorOnOff—O——
ABCD
ABCD
ABCD

4268-2. Customization
LEXUS NX300h Owners Manu-
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■Automatic air conditioning system (P.266)
■Eco mode ( P.248)
■Power windows ( P.142)
■Moon roof*1 ( P.144)
*1: If equipped
*2: This function cannot be cust omized unless power window op erations, using the wireless
remote control or mechanical key, is enabled.
FunctionDefault settingCustomized set- ting
Switching between outside
air and recirculated air mode
linked to “AUTO” switch
operation
OnOffO—O—
A/C Auto switch operationOnOffO—O—
FunctionDefault settingCustomized set-ting
Heating/coolin g operation
minimized in Eco modeOnOff——O—
FunctionDefault settingCustomized set- ting
Mechanical key linked opera-
tionOffOn——O—
Wireless remote control
linked open operationOffOn——O—
FunctionDefault settingCustomized set-ting
Mechanical key linked opera-
tion
*2OffOn——O—
Wireless remote control
linked open or Tilt up opera-
tions
*2OffOn——O—
ABCD
ABCD
ABCD
ABCD

4298-2. Customization
LEXUS NX300h Owners Manu-
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Vehicle specifications
*1: If equipped
*2: Configured by operating the sw itch of the lower back door. (P.118)
*3: While carrying the electronic key on your person, press the back door opener switch.
*4: When the towing hitch is installed, the kick sensor does not work
■Vehicle customization
●When the speed linked door locking function and shift po sition linked door locking func-
tion are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be locked.
• If the vehicle is started with all the doors locked, the speed linked door locking function
would not operate.
• If the vehicle is started with any door unlock ed, the speed linked door locking function will
operate.
●When the smart access system with push-button start is off, smart door unlocking cannot
be customized.
●When the doors remain closed after unlock ing the doors and the automatic door lock
function is activat ed, the signals will be generated in accordance with the Operation sig-
nal (buzzer) and the Operation sign al (emergency flashers) settings.
■In the following situations, customize mode in which the settings can be changed
through the multi-information display will automatically be turned off.
●A warning message appears after the cu stomize mode screen is displayed.
●The power switch is turned off.
●The vehicle begins to move while the customize mode screen is displayed.
Back door opener switch
operationsWhen the back
door is locked
*3When the back
door is unlocked——O—
Power back door operationsOnOff—O——
Operation buzzer volume31—O——2
Kick Sensor*1, 4OnOff—O——
FunctionDefault settingCustomized set- tingABCD

444What to do if... (Troubleshooting)
LEXUS NX300h Owners Manu-
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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

448Alphabetical Index
LEXUS NX300h Owners Manu-
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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