service LEXUS NX300h 2020 Owner's Guide

4308-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_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

4358-1. Specifications
LEXUS NX300h Owners Manual_USA_M78530_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_M78530_en
L
Lane Departure Alert wi th steering control
(LDA) ............................................................ 226
Lane Tracing Assist (LTA) ......................... 217
Language (multi-information display) 444
LATCH anchors ............................................. 55
LDA (Lane Departure Alert with steering control) ......................................................... 226
Lever Auxiliary catch lever ................................. 344
Hood lock release lever......................... 344
Shift lever.......................................................... 179
Turn signal lever ...........................................182
Wiper lever.................................................... 195
Lexus Enform Remote.................................. 65
Lexus Enform Safety Connect.................. 60
Lexus Enform Service Connect ............... 66
Lexus Safety System+ 2.0 Automatic High Beam .............................. 192
Dynamic radar cruise control with full-speed range .............................................. 236
LDA (Lane Departure Alert with steering control) ........................................................ 226
LTA (Lane Tracing Assist)...................... 217
PCS (Pre-Collision System)..................210
RSA (Road Sign Assist) ......................... 234
License plate lights Light switch .................................................... 189
Replacing light bulbs................................ 374
Light Automatic High Beam system.............. 192
Cornering lights ............................................ 191
Fog light switch ............................................ 195
Headlight switch ......................................... 189 Illuminated entry system ........................ 300
Interior light list ........................................... 300
Interior lights .................................................. 301
Luggage compartment light ................... 116
Personal lights .............................................. 301
Replacing light bulbs ................................ 374
Turn signal lever .......................................... 182
Vanity lights ................................................... 310
Wattage .......................................................... 429
Welcome light illumination control ....... 111
Light bulbs Replacing ........................................... 374, 375
Wattage .......................................................... 429
LTA (Lane Tracing Assist) ......................... 217
Luggage cover .............................................308
M
Maintenance Do-it-yourself maintenance ................. 342
General maintenance ............................. 337
Maintenance data ...................................... 422
Maintenance requirements .................. 337
Malfunction indicator la mp ..................... 387
Meter Head-up display............................................ 94
Indicators.......................................................... 80
Instrument panel light control................ 88
Meters.................................................................84
Multi-information display ..........................89
Warning lights ............................................ 386
Warning messages.................................. 396
Micro dust and pollen filter ..................... 294

LEXUS NX300h Owners Manual_USA_M78530_en
Alphabetical Index479
S
S-FLOW mode ............................................ 294
Safety Connect................................................ 60
Seat belts............................................................ 26Adjusting the seat belt shoulder anchor height................................................................. 31
Automatic Locking Retractor ................ 28
Child restraint system installation ..........47
Cleaning and maintaining the seat belt ......................................................................... 333
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 .....................391
Seat belt extender ........................................ 28
Seat belt instructions for Canadian own- ers................................................................... 454
Seat belt pretensioners ................................ 31
SRS warning light ..................................... 388
Seat heaters ................................................... 297
Seat position memory................................. 138
Seat ventilators ............................................. 298
Seating capacity.............................................164
Seats Adjustment............................................132, 133
Adjustment precautions .................132, 134
Child seats/child restraint system installa-tion .....................................................................47
Cleaning......................................................... 333
Driving position memory........................ 138 Folding down the rear seatbacks ........134
Front seat heaters ...................................... 297
Head restraint ................................................. 141
Power easy access system .................... 138
Properly sitting in the seat ........................ 25
Rear seat heaters ....................................... 297
Seat position memory .............................. 138
Seat ventilators ........................................... 298
Sécurité de l’enfant Précautions avec les coussins gonflables......................................................................... 458
Sensor Automatic High Beam system ..............192
BSM (Blind Spot Monitor)....................263
Inside rear view mirror ............................. 145
Intuitive parking assist .............................. 247
Kick sensor ....................................................... 118
LDA (Lane Departure Alert with steering control) ........................................................204
LTA (Lane Tracing Assist) ....................204
Radar sensor ................................................204
Rain-sensing windshield wipers .......... 199
Service plug ...................................................... 70
Service reminder message ..................... 337
Shift lever .......................................................... 179
Shift lock system............................................ 180
Side airbags ...................................................... 32
Side doors.......................................................... 110
Side marker lights Light switch .................................................... 189
Replacing light bulbs .................... 374, 375
Wattage .......................................................... 429