service LEXUS NX300h 2021 Owner's Guide

3847-2. Steps to take in an emergency
LEXUS NX300h Owners Manual_USA_M78578_en
The following may indicate a problem
with your hybrid transmission. Contact
your Lexus dealer or commercial tow-
ing service before towing. ( P.383)
 The hybrid system warning message
is shown on the multi-information
display and the vehicle does not
move.
 The vehicle makes an abnormal
sound.
From the front
Use a towing dolly under the rear
wheels.
From the rear
Use a towing dolly under the front
wheels.
When using a flat-bed truck to trans-
port the vehicle, use tire strapping
belts. Refer to the owner’s manual of
the flat-bed truck for the tire strapping
method.
NOTICE
■Recreational towing (behind motor
home, etc.)
Never dinghy tow your vehicle to pre-
vent causing serious damage to the
Hybrid AWD system and transmission.
(  P.173)
Situations when it is necessary to
contact dealers before towing
Towing with a wheel-lift type
truck
NOTICE
■Towing with a sling-type truck
Do not tow with a sling-type truck to pre-
vent body damage.
Using a flatbed truck

4328-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
■Gasoline quality
In very few cases, driveability problems may
be caused by the brand of gasoline you are
using. If driveability problems persist, try
changing the brand of gasoline. If this does
not correct the problem, consult your Lexus
dealer.
■Recommendation of the use of gasoline
containing detergent additives
●Lexus recommends the use of gasoline
that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains
minimum detergent additives to clean
and/or keep clean intake systems, per
EPA’s lowest additive s concentration pro-
gram.
●Lexus strongly recommends the use of
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to
the official websit e www.toptiergas.com.
■Recommendation of the use of low
emissions gasoline
Gasolines containing oxygenates such as
ethers and ethanol, as well as reformulated
gasolines, are available in some cities.
These fuels are typically acceptable for use,
providing they meet other fuel require-
ments. Lexus recommends these fuels, since the
formulations allow for reduced vehicle
emissions.
■Non-recommendation of the use of
blended gasoline
●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from
any pump labeled
E30 (30% ethanol ), E50 (50% etha-
nol ), E85 (85% ethanol ) (which
are only some examples of fuel contain-
ing more than 15% ethanol).
●If you use gasohol in your vehicle, be sure
that it has an octane rating no lower than
87.
●Lexus does not recommend the use of
gasoline containing methanol.
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
ing for a short time wh ile accelerating or
driving uphill. This is normal and there is
no need for concern.
Fuel information
You must only use unleaded gaso-
line in your vehicle.
Select octane rating 87 (Research
Octane Number 91) or higher. Use
of unleaded gasoline with an octane
rating lower than 87 may result in
engine knocking. Persistent knock-
ing can lead to engine damage.
At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.
A
BC

4378-1. Specifications
LEXUS NX300h Owners Manual_USA_M78578_en
8
Vehicle specifications
Chafer
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Your Lexus dealer will help answer any
questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performa nce of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades for this
tire are established for a tire that is prop-
erly inflated and not overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
Uniform Tire Quality Grading
K

476Alphabetical Index
LEXUS NX300h Owners Manual_USA_M78578_en
Initialization
Items to initialize ......................................... 454
Inside rear view mirror ................................144
Instrument panel light control ................... 88
Interior lights.................................................. 302
Intuitive parking assist Enabled/disabled on the system ....... 248
Function .......................................................... 248
Warning message..................................... 249
J
JackPositioning a floor jack............................ 346
Vehicle-equipped jack ........................... 402
Jack handle .................................................... 402
Jam protection function Moon roof ........................................................ 151
Power back door closer ............................121
Power windows........................................... 148
Rear seats ........................................................ 137
K
Keyless entrySmart access system with push-button start .................................................................. 126
Wireless remote control..........................107
Keys.................................................................... 106 Battery-saving function ............................ 127
Electronic key ............................................... 106
Engine switch................................................. 174
If the electronic key does not operate properly......................................................... 412
If you lose your keys.....................................411
Key number plate ....................................... 106
Keyless entry ......................................... 110, 126
Mechanical key............................................ 106
Power switch ................................................. 174
Replacing the battery...............................369
Warning buzzer ........................................... 127
Wireless remote control key .................107
Knee airbags .................................................... 32
L
Lane Departure Alert with steering control (LDA) .............................................................227
Lane Tracing Assist (LTA) .........................218
Language (multi-information display) 446
LATCH anchors ............................................. 55
LDA (Lane Departure Alert with steering control) ..........................................................227
Lever Auxiliary catch lever .................................346
Hood lock release lever .........................346
Shift lever .........................................................180
Turn signal lever .......................................... 183
Wiper lever .................................................... 196
Lexus Enform Remote.................................. 65
Lexus Enform Safety Connect.................. 60
Lexus Enform Service Connect ............... 66
Lexus Safety System+ 2.0 Automatic High Beam ............................. 193
Dynamic radar cruise control with full-
speed range .............................................. 237
LDA (Lane Departure Alert with steering control) ........................................................ 227
LTA (Lane Tracing Assist) ..................... 218
PCS (Pre-Collision System) ................... 211
RSA (Road Sign Assist)..........................235
License plate lights Light switch .................................................... 190
Replacing light bulbs ................................375
Light Automatic High Beam system ............. 193
Cornering lights ...........................................192
Fog light switch ............................................ 196
Headlight switch.......................................... 190
Illuminated entry system .........................302
Interior light list ............................................302
Interior lights ................................................ 303
Luggage compartment light ................... 116
Personal lights ............................................ 303
Replacing light bulbs ................................375
Turn signal lever .......................................... 183

LEXUS NX300h Owners Manual_USA_M78578_en
Alphabetical Index479
How to wear your seat belt ......................27
How your child should wear the seat belt
.............................................................................27
Pregnant women, proper seat belt use ............................................................................ 26
Reminder light and buzzer ................... 393
Seat belt extender .........................................27
Seat belt instructions for Canadian own- ers...................................................................456
Seat belt pretensioners .............................. 30
SRS warning light ......................................390
Seat heaters ................................................... 299
Seat position memory................................. 138
Seat ventilators .............................................. 301
Seating capacity................................. 164, 424
Seats Adjustment............................................132, 133
Adjustment precautions .................132, 134
Child seats/child restraint system installa-tion .....................................................................47
Cleaning......................................................... 335
Driving position memory........................ 138
Folding down the rear seatbacks........134
Front seat heaters ..................................... 300
Head restraint..................................................141
Power easy access system .................... 138
Properly sitting in the seat ........................ 25
Rear seat heaters ...................................... 300
Seat position memory .............................. 138
Seat ventilators............................................. 301
Sécurité de l’enfant Précautions avec les coussins gonflables.........................................................................460
Sensor Automatic High Beam system..............193
BSM (Blind Spot Monitor) ................... 265
Inside rear view mirror..............................145
Intuitive parking assist.............................. 248
Kick sensor....................................................... 118
Radar sensor................................................205
Rain-sensing windshield wipers.........200
Service plug ...................................................... 70 Service reminder message ..................... 339
Shift lever ......................................................... 180
Shift lock system.............................................. 181
Side airbags ...................................................... 32
Side doors.......................................................... 110
Side marker lights
Light switch .................................................... 190
Replacing light bulbs ....................375, 376
Wattage ............................................................431
Side mirrors .....................................................146 Adjusting and folding................................ 146
Blind Spot Monitor (BSM).................... 262
Heaters............................................................ 292
Side turn signal lights Replacing light bulbs ................................375
Turn signal lever .......................................... 183
Smart access system with push-button start...................................................................126Antenna location ..........................................126
Entry functions ....................................... 110, 115
Starting the hybrid system .......................174
Warning message .................................... 398
Snow tires ....................................................... 279
Spare tire Inflation pressure ....................................... 430
Storage location .........................................402
Spark plug ...................................................... 428
Specifications ................................................ 424
Speedometer ................................................... 84
Sport mode .................................................... 270
Steering wheel Adjustment ......................................................143
Heated steering wheel ............................299
Power easy access system .................... 138
Stop lights Replacing light bulbs ................................375
Storage feature ............................................305
Storage precautions...................................305
Stuck If the vehicle becomes stuck ..................421
Sun visors ..........................................................312