2021 LEXUS NX300h reset

3516-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manual_USA_M78578_en
6
Maintenance and care
2Press or of the meter control
switches, sele ct the “Vehicle Settings”
and then press .
3 Press or of the meter control
switches, select the “Oil Maintenance”
and then press and hold .
4 Select the “Yes” and push .
“The Data Has Been Reset” is displayed
on the multi-information display.
The coolant level is satisfactory if it is
between the “FULL” and “LOW” lines
on the reservoir when the hybrid sys-
tem is cold.
■Engine coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW” line,
add coolant up to the “FULL” line.
(  P.418)
WARNING
■Used engine oil
●Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as inflamma-
tion and skin cancer, so care should be
taken to avoid prolonged and
repeated contact. To remove used
engine oil from your skin, wash thor-
oughly with soap and water.
●Dispose of used oil and filters only in a
safe and acceptable manner. Do not
dispose of used oil and filters in house-
hold trash, in sewers or onto the
ground. Call your Lexus dealer, ser-
vice station or auto parts store for
information concerning recycling or
disposal.
●Do not leave used engine oil within the
reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the
vehicle components.
●Avoid overfilling, or the engine could
be damaged.
●Check the oil level on the dipstick
every time you re fill the vehicle.
●Be sure the engine o il filler cap is prop-
erly tightened.
Checking the coolant
A
B
C

3636-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manual_USA_M78578_en
6
Maintenance and care
■The tire pressure warning system
must be initialized in the following
circumstances:
 When adjusting the tire inflation
pressure.
 When the tire inflation pressure is
changed such as when changing
traveling speed.
 When rotating the tires.
 When changing the tire.
When the tire pressure warning system
is initialized, the cu rrent tire inflation
pressure is set as the benchmark pres-
sure.
■How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
turn the power switch off.
Initialization cannot be performed while
the vehicle is moving.
2 Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure level.
Make sure to adjust th e tire pressure to the
specified cold tire infl ation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3 Turn the power switch to ON
mode. 4
Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches, select the “Vehicle
Settings” and then press .
6 Press or of the meter con-
trol switches, select the “TPMS”
and then press and hold the .
The “Tire Pressure Recalibrating. Please
Wait Until Complete” will be displayed on
the multi-information display and the tire
pressure warning light will blink slowly 3
times.
When the message di sappears, initializa-
tion is complete.
■Initializing the tire pressure warning sys-
tem
Initialize the system wi th the tire inflation
pressure adjusted to the specified level
■The initialization operation
●Make sure to carry out initialization after
adjusting the tire inflation pressure. Also,
make sure the tires are cold before carry-
ing out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the power
switch off during initialization, it is not
necessary to press the reset switch again
as initialization will restart automatically
when the power switch has been turned
to ON mode for the next time.
Initializing the tire pressure
warning system

3646-3. Do-it-yourself maintenance
LEXUS NX300h Owners Manual_USA_M78578_en
●If you accidentally press the reset switch
when initialization is not necessary, adjust
the tire inflation pres sure to the specified
level when the tires are cold, and conduct
initialization again.
■Warning performance of the tire pres-
sure warning system
The warning of the tire pressure warning
system will change in accordance with the
conditions under which it was initialized. For
this reason, the system may give a warning
even if the tire pressure does not reach a
low enough level, or if the pressure is higher
than the pressure that was adjusted to when
the system was initialized.
■When initialization of the tire pressure
warning system has failed
Initialization can be completed in a few min-
utes. However, in the following cases, the
settings have not been recorded and the
system will not operate properly. If repeated
attempts to record tire inflation pressure
settings are unsuccessful, have the vehicle
inspected by your Lexus dealer.
●When initializing the tire pressure warn-
ing system, the tire pressure warning light
does not blink 3 times.
●After carrying out the initialization proce-
dure, the tire pressure warning light
blinks for 1 minute then stays on after
driving for 20 minutes.
The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres- sure warning valve and
transmitter, it is
necessary to register the ID code.
Have the ID code registered by your
Lexus dealer.
WARNING
■When initializing the tire pressure
warning system
Do not initializing tire inflation pressure
without first adjusting the tire inflation
pressure to the spec ified level. Other-
wise, the tire pressure warning light may
not come on even if the tire inflation pres-
sure is low, or it may come on when the
tire inflation pressure is actually normal.
Registering ID codes

4007-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
pedal has been depressed and the shift
lever is in N. Release the accelerator pedal
and shift the shift lever to D, S or R.
■If “Depress Brake When Vehicle Is
Stopped Hybrid Syst
em May Overheat”
is shown
Message is displayed when the accelerator
pedal is depressed to maintain the vehicle
position when stopped on a upward slope,
etc.
If this continues, th e hybrid system may
overheat.
Release the accelerator pedal and depress
the brake pedal.
■If a message that indicates the malfunc-
tion of front camera is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.209, 391)
●PCS (Pre-Collision System)
●LTA (Lane Tracing Assist) (if equipped)
●LDA (Lane Departure Alert with steering
control) (if equipped)
●Automatic High Beam
●RSA (Road Sign Assist) (if equipped)
●Dynamic radar cruise control with full-
speed range
■If “RSA malfunction Visit Your Dealer” is
shown
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
■If “Radar Cruise Control Unavailable
See Owner’s Manual” is shown
The dynamic radar cruise control with full-
speed range system is suspended tempo-
rarily or until the problem shown in the mes-
sage is resolved. (causes and coping
methods: P.209)
■If “Radar Cruise Control Unavailable” is
shown
The dynamic radar cruise control with full-
speed range system cannot be used tempo-
rarily. Use the system when it becomes
available again.
■If “Oil Maintenance Required Soon” is
shown
Indicates that the engine oil is scheduled to
be changed. (The indicator will not work
properly unless the oil maintenance data
has been reset.)
Check the engine oil, and change if neces-
sary. After changing th e engine oil, the oil
change system should be reset. ( P.350)
■If “Oil Maintenance Required” is shown
Indicates that the engine oil should be
changed. (After the engine oil is changed
and the oil maintenance data has been
reset.)
Check and change the en gine oil, and oil fil-
ter by your Lexus dealer. After changing the
engine oil, the oil change system should be
reset. ( P.350)
■If “See Owner’s Manual” is shown
●If the following messages are shown, fol-
lowing the instruct ions, accordingly.
• “Engine Coolant Temp High” ( P.418)
●If the following messages are shown,
there may be a malfunction.
Immediately have the vehicle inspected
by your Lexus dealer.
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Braking Power Low”
• “Smart Access System Malfunction”
●If “Aux Battery Low” is shown
• When the display goes off after several
seconds
*
Maintain the hybrid system operation for
more than 15 minutes and charge the 12-
volt battery.
• When the display does not go off Start up the hybrid system using the pro-
cedures for “If the 12-volt battery is dis-
charged” ( P.414).
*: Displays for about 6 seconds
●If “Maintenance required for Traction bat-
tery cooling parts” is shown, the filters
may be clogged, the air intake vents may
be blocked, or there may be a gap in the
duct. Therefore, perform the following
correction procedure.
• If the air intake vents of the hybrid battery

4077-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
7
When trouble arises
come off.
2Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount.
Tighten the wheel nuts until the tapered
portion comes into loose contact with
the disc wheel seat .
3Install the wheel nut wrench in jack
handle. 4
Lower the vehicle.
5 Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
6Stow the flat tire, tire jack and all
tools.
■The compact spare tire
●The compact spare tire is identified by the
label “TEMPORARY USE ONLY” on
the tire sidewall.
Use the compact spar e tire temporarily,
and only in an emergency.
●Make sure to check the tire inflation pres-
sure of the compact spare tire. ( P.430)
■After completing the tire change
The tire pressure warn ing system must be
reset. ( P.363)
■When using the compact spare tire
As the compact spare tire is not equipped
with a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare
tire will not be indicated by the tire pressure
A
B

4478-2. Customization
LEXUS NX300h Owners Manual_USA_M78578_en
8
Vehicle specifications
*1: The default setting varies according to countries.
*2: Some status screens cannot be registered (i ndicated on the multi-information display)
*3: 2 of the following items: current fuel consumption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehicle
speed (after reset), average vehicle speed (after start), distance (driving range), dis-
tance (after start), elapsed time (after reset), elapsed time (after start), blank
*4: Intersection guidance, Incoming calls, Adjust brightness
Language*1EnglishFrenchOO——Spanish
Units*1miles (MPG US)
miles
(MPG Imperial)
OO——km (L/100 km)
km (km/L)
switch settingsDrive information 1Desired status
screen
*2—O——
Drive information 1
Current fuel con- sumption
*3—O——Average fuel con-sumption (after reset)
Drive information 2
Distance (range)
*3—O——Average speed (after reset)
Drive information 3
Average fuel con-sumption (after refuel)
*3—O——
Elapsed time (after start)
Pop-up display*4OnOff—O——
Accent colorColor 1Color 2OO——
Clock24-hour display12-hour display—O——
FunctionDefault settingCustomized set- tingABCD

478Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78578_en
Indicator ...................................................80, 82
Warning light ............................................... 392
Warning messages .................................. 259
PCS (Pre-Collision System) Changing settings of the system ......... 213
Function ..............................................................211
Warning light .................................................391
Warning message.....................................398
Personal lights............................................... 302 Switch ..............................................................303
PKSA (Parking Support Alert) ...............247
Power back door open er and closer ..... 117
Power control unit coolant Capacity ......................................................... 427
Checking .........................................................351
Preparing and checking before winter......................................................................... 279
Radiator .......................................................... 352
Power easy access system ....................... 138
Power outlets ..................................................313
Power steering (Electric Power Steering system)...........................................................272Warning light ...............................................390
Power switch ................................................... 174
Power windows Door lock linked window operation..149
Jam protection function........................... 148
Operation....................................................... 148
Window lock switch ..................................149
Pre-Collision System (PCS) Changing settings of the system ......... 213
Function ..............................................................211
Warning light .................................................391
Warning message.....................................398
R
Radar cruise control (dynamic radar cruise control with full-speed range)............. 237
Radiator ........................................................... 352
Rear Cross Traffic Alert ............................267
Rear seat Folding down the rear seatbacks........134 Rear side marker lights
Light switch .................................................... 190
Replacing light bulbs ................................375
Rear turn signal lights Replacing light bulb ..................................375
Turn signal lever .......................................... 183
Rear view mirror Inside rear view mirror ..............................144
Outside rear view mirrors...................... 146
Rear window defogger ............................. 292
Rear window wiper.......................................201
Refueling ......................................................... 203 Capacity .........................................................425
Fuel types .......................................................425
Opening the fuel tank cap ....................203
When the fuel filler door cannot be
opened............................................................ 411
Regenerative braking ................................... 68
Remote Touch .............................................. 286
Replacing Electronic key battery ............................. 369
Fuses...................................................................371
Light bulbs .....................................................375
Tires ..................................................................402
Reporting safety defects for U.S. owners .......................................................................... 456
Resetting the message indicating mainte- nance is required ...................................... 339
Road accident cautions ................................. 71
RSA (Road Sign Assist) ............................ 235
S
S-FLOW mode ............................................ 296
Safety Connect................................................ 60
Seat belts............................................................ 26 Adjusting the seat belt shoulder anchor height ...............................................................30
Automatic Locking Retractor................. 28
Child restraint system installation ......... 47
Cleaning and maintaining the seat belt ..........................................................................335
Emergency Locking Retractor .............. 28

480Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78578_en
Switch
ASC (Active Sound Control) dial ..... 188
Automatic High Beam switch ...............193
Brake hold switch........................................187
BSM (Blind Spot Monitor) main switch......................................................................... 262
Cruise control switch .............................. 237
Door lock switch............................................112
Driving mode select switch .................. 270
Driving position memory switches .... 138
Emergency flashers switch .................. 380
EV drive mode switch ..............................178
Fog light switch .............................................196
Garage door opener switches .......... 322
Heated steering wheel............................ 299
HUD (Head-up display) switches ....... 95
Ignition switch................................................ 174
LDA switch ..................................................... 231
Light switches ............................................... 190
LTA switch .................................................... 223
Meter control switches .............................. 89
Moon roof switches .................................. 150
Outside rear view mirror switches .....146
Paddle shift switches ..................................182
Parking brake switch ................................ 184
Power back door opener and closer switch................................................................117
Power switch ................................................. 174
Power window switch .............................. 148
Rear window and outside rear view mir- ror defoggers switch ............................ 292
Rear window wiper and washer switch ...........................................................................201
Seat heater switches ................................ 299
“SOS” button .................................................. 60
Tire pressure warning reset switch .. 363
Vehicle-to-vehicle distance switch .. 237
VSC off switch ............................................ 273
Window lock switch ..................................149
Windshield wipers and washer switch ................................................................ 196, 201T
Tachometer....................................................... 84
Tail lights Light switch .................................................... 190
Replacing light bulbs ................................375
Theft deterrent system Alarm....................................................................77
Immobilizer system ...................................... 75
Tire inflation pressure Maintenance data ..................................... 430
Warning light ...............................................394
Tire information ............................................ 434 Glossary ........................................................ 438
Size ....................................................................436
Tire identification number......................435
Uniform Tire Quality Grading ............ 437
Tire pressure warning system Function ......................................................... 359
Initializing........................................................363
Installing tire pres sure warning valves
and transmitters.......................................362
Registering ID codes ...............................364
Warning light ...............................................394
Tires................................................................... 357 Chains ............................................................ 280
Checking .......................................................357
Glossary ........................................................ 438
If you have a flat tire ..................................402
Inflation pressure ........................... 365, 430
Replacing .......................................................402
Rotating tires ............................................... 358
Size ................................................................... 430
Snow tires ...................................................... 279
Spare tire ........................................... 402, 430
Tire identification number......................435
Tire pressure warning system ............ 359
Uniform Tire Quality Grading ............ 437
Warning light ...............................................394
Tools.................................................................. 402
Top tether strap............................................... 57
Total load capacity ...................................... 424