Lexus NX300h (2021 year). Manual in english

435

8-1. Specifications

Vehi

cle

spec

ifi

tions

Radial tires or bias-ply tires

A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.

Load limit at maximum cold tire inflation pressure (



P.357)

Maximum cold tire inflation pressure (



P.430)

This means the pressure to which a tire may be inflated.

Uniform tire quality grading

For details, see “Uniform Tire Quality Grading” that follows.

Summer tires or all season tires (



P.357)

An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.

“TEMPORARY USE ONLY”

A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its
sidewall. This tire is designed for temporary emergency use only.



Type A

DOT symbol

Tire Identification Number (TIN)

Tire manufacturer’s identification
mark

Tire size code

Manufacturer’s optional tire type

code (3 or 4 letters)

Manufacturing week

Manufacturing year

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.



Type B

DOT symbol

Tire Identification Number (TIN)

Tire manufacturer’s identification

Typical DOT and Tire Identifica-
tion Number (TIN)

A
B
C

436

8-1. Specifications

mark

Manufacturer’s code

Manufacturing week

Manufacturing year

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor
Vehicle Safety Standards.

■

Typical tire size information

The illustration indicates typical tire
size.

Tire use
(P = Passenger car,
T = Temporary use)

Section width (millimeters)

Aspect ratio
(tire height to section width)

Tire construction code
(R = Radial, D = Diagonal)

Wheel diameter (inches)

Load index (2 digits or 3 digits)

Speed symbol (alphabet with one
letter)

■

Tire dimensions

Section width

Tire height

Wheel diameter

Bead

Sidewall

Shoulder

Tread

Belt

Inner liner

Reinforcing rubber

Carcass

Rim lines

Bead wires

Tire size

E
F

B
C

E
F

Tire section names

A
B
C

A
B
C
D

E
F

437

8-1. Specifications

Vehi

cle

spec

ifi

tions

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 performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations 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 sudden tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal 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, underinflation, or exces-
sive loading, either separately or in combi-

Uniform Tire Quality Grading

438

8-1. Specifications

nation, can cause heat buildup and
possible tire failure.

Glossary of tire terminology

Tire related

term

Meaning

Cold tire
inflation
pressure

Tire pressure when the vehi-
cle has been parked for
three hours or more, or has
not been driven more than 1
mile or 1.5 km under that
condition

Maximum
inflation
pressure

The maximum cold inflated
pressure to which a tire may
be inflated, shown on the
sidewall of the tire

Recom-
mended
inflation
pressure

Cold tire inflation pressure
recommended by a manu-
facturer

Accessory
weight

The combined weight (in
excess of those standard
items which may be
replaced) of transmission,
power steering, power
brakes, power windows,
power seats, radio and
heater, to the extent that
these items are available as
factory-installed equipment
(whether installed or not)

Curb weight

The weight of a motor vehi-
cle with standard equip-
ment, including the
maximum capacity of fuel,
oil and coolant, and if so
equipped, air conditioning
and additional weight
optional engine

Maximum
loaded vehi-
cle weight

The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options
weight

Normal
occupant
weight

150 lb. (68 kg) times the
number of occupants speci-
fied in the second column of
Table 1

that follows

Occupant
distribution

Distribution of occupants in
a vehicle as specified in the
third column of Table 1

below

Production
options
weight

The combined weight of
installed regular production
options weighing over 5 lb.
(2.3 kg) in excess of the
standard items which they
replace, not previously con-
sidered in curb weight or
accessory weight, including
heavy duty brakes, ride lev-
elers, roof rack, heavy duty
12-volt battery, and special
trim

Rim

A metal support for a tire or
a tire and tube assembly
upon which the tire beads
are seated

Rim diame-
ter
(Wheel
diameter)

Nominal diameter of the
bead seat

Rim size des-
ignation

Rim diameter and width

Tire related

term

Meaning

439

8-1. Specifications

Vehi

cle

spec

ifi

tions

Rim type
designation

The industry manufac-
turer’s designation for a rim
by style or code

Rim width

Nominal distance between
rim flanges

Vehicle
capacity
weight
(Total load
capacity)

The rated cargo and lug-
gage load plus 150 lb. (68
kg) times the vehicle’s des-
ignated seating capacity

Vehicle max-
imum load
on the tire

The load on an individual
tire that is determined by
distributing to each axle its
share of the maximum
loaded vehicle weight, and
dividing by two

Vehicle nor-
mal load on
the tire

The load on an individual
tire that is determined by
distributing to each axle its
share of curb weight, acces-
sory weight, and normal
occupant weight (distrib-
uted in accordance with
Table 1

below), and dividing

by two

Weather
side

The surface area of the rim
not covered by the inflated
tire

Bead

The part of the tire that is
made of steel wires,
wrapped or reinforced by
ply cords and that is shaped
to fit the rim

Bead sepa-
ration

A breakdown of the bond
between components in the
bead

Tire related

term

Meaning

Bias ply tire

A pneumatic tire in which
the ply cords that extend to
the beads are laid at alter-
nate angles substantially
less than 90 degrees to the
centerline of the tread

Carcass

The tire structure, except
tread and sidewall rubber
which, when inflated, bears
the load

Chunking

The breaking away of
pieces of the tread or side-
wall

Cord

The strands forming the
plies in the tire

Cord sepa-
ration

The parting of cords from
adjacent rubber com-
pounds

Cracking

Any parting within the
tread, sidewall, or innerliner
of the tire extending to cord
material

A pneumatic tire with an
inverted flange tire and rim
system in which the rim is
designed with rim flanges
pointed radially inward and
the tire is designed to fit on
the underside of the rim in a
manner that encloses the
rim flanges inside the air
cavity of the tire

Extra load
tire

A tire designed to operate
at higher loads and at
higher inflation pressures
than the corresponding
standard tire

Tire related

term

Meaning

440

8-1. Specifications

Groove

The space between two
adjacent tread ribs

Innerliner

The layer(s) forming the
inside surface of a tubeless
tire that contains the inflat-
ing medium within the tire

Innerliner
separation

The parting of the innerliner
from cord material in the
carcass

Intended
outboard
sidewall

(a) The sidewall that con-
tains a whitewall, bears
white lettering, or bears
manufacturer, brand, and/or
model name molding that is
higher or deeper than the
same molding on the other
sidewall of the tire, or
(b) The outward facing side-
wall of an asymmetrical tire
that has a particular side
that must always face out-
ward when mounted on a
vehicle

Light truck
(LT) tire

A tire designated by its
manufacturer as primarily
intended for use on light-
weight trucks or multipur-
pose passenger vehicles

Load rating

The maximum load that a
tire is rated to carry for a
given inflation pressure

Maximum
load rating

The load rating for a tire at
the maximum permissible
inflation pressure for that
tire

Tire related

term

Meaning

Maximum
permissible
inflation
pressure

The maximum cold inflation
pressure to which a tire may
be inflated

Measuring
rim

The rim on which a tire is fit-
ted for physical dimension
requirements

Open splice

Any parting at any junction
of tread, sidewall, or inner-
liner that extends to cord
material

Outer diam-
eter

The overall diameter of an
inflated new tire

Overall
width

The linear distance between
the exteriors of the sidewalls
of an inflated tire, including
elevations due to labeling,
decorations, or protective
bands or ribs

Passenger
car tire

A tire intended for use on
passenger cars, multipur-
pose passenger vehicles,
and trucks, that have a gross
vehicle weight rating
(GVWR) of 10,000 lb. or
less.

Ply

A layer of rubber-coated
parallel cords

Ply separa-
tion

A parting of rubber com-
pound between adjacent
plies

Tire related

term

Meaning

441

8-1. Specifications

Vehi

cle

spec

ifi

tions

: Table 1



Occupant loading and distri-

bution for vehicle normal load for vari-
ous designated seating capacities

Pneumatic
tire

A mechanical device made
of rubber, chemicals, fabric
and steel or other materials,
that, when mounted on an
automotive wheel, provides
the traction and contains
the gas or fluid that sustains
the load

Radial ply
tire

A pneumatic tire in which
the ply cords that extend to
the beads are laid at sub-
stantially 90 degrees to the
centerline of the tread

Reinforced
tire

A tire designed to operate
at higher loads and at
higher inflation pressures
than the corresponding
standard tire

Section
width

The linear distance between
the exteriors of the sidewalls
of an inflated tire, excluding
elevations due to labeling,
decoration, or protective
bands

Sidewall

That portion of a tire
between the tread and bead

Sidewall sep-
aration

The parting of the rubber
compound from the cord
material in the sidewall

Tire related

term

Meaning

Snow tire

A tire that attains a traction
index equal to or greater
than 110, compared to the
ASTM E-1136 Standard
Reference Test Tire, when
using the snow traction test
as described in ASTM F-
1805-00, Standard Test
Method for Single Wheel
Driving Traction in a
Straight Line on Snow-and
Ice-Covered Surfaces, and
which is marked with an
Alpine Symbol (

) on at

least one sidewall

Test rim

The rim on which a tire is fit-
ted for testing, and may be
any rim listed as appropri-
ate for use with that tire

Tread

That portion of a tire that
comes into contact with the
road

Tread rib

A tread section running cir-
cumferentially around a tire

Tread sepa-
ration

Pulling away of the tread
from the tire carcass

Treadwear
indicators
(TWI)

The projections within the
principal grooves designed
to give a visual indication of
the degrees of wear of the
tread

Wheel-hold-
ing fixture

The fixture used to hold the
wheel and tire assembly
securely during testing

Tire related

term

Meaning

443

8-2. Customization

Vehi

cle

spec

ifi

tions

8-2.Customization

When customizing vehicle features,
ensure that the vehicle is parked in a
safe place with the shift lever in P and
the parking brake set.

■

Changing using the Remote Touch

Press the “MENU” button on the
Remote Touch.

Select

on the menu screen and

select “Vehicle”.

Select “Vehicle Customization”.

Various setting can be changed. Refer
to the list of settings that can be
changed for details.

■

Changing using the multi-informa-
tion display

Press

of the meter con-

trol switches and select

Press

of the meter con-

trol switches, select the item, and
then press

Press

of the meter con-

trol switches, select the desired set-
ting, and then press

To go back to the previous screen or
exit the customize mode, press

Some function settings are changed simultaneously with other functions being cus-
tomized. Contact your Lexus dealer.

Settings that can be changed using the Remote Touch

Settings that can be changed using the multi-information display

Customizable features

Your vehicle includes a variety of
electronic features that can be per-
sonalized to suit your preferences.
The settings of these features can
be changed using the multi-infor-
mation display, the Remote Touch,
or at your Lexus dealer.

Customizing vehicle features

WARNING

■

Cautions during customization

As the hybrid system needs to be operat-

ing during customization, ensure that the

vehicle is parked in a place with ade-

quate ventilation. In a closed area such as

a garage, exhaust gases including harm-

ful carbon monoxide (CO) may collect

and enter the vehicle. This may lead to

death or a serious health hazard.

NOTICE

■

During customization

To prevent 12-volt battery discharge,

ensure that the hybrid system is operat-

ing while customizing features.

Customizable features

444

8-2. Customization

Settings that can be changed by your Lexus dealer

Settings that can be changed using the vehicle switch

Definition of symbols: O = Available, – =Not available

■

Door lock (



P.110, 412)

■

Smart access system with push-button start and wireless remote control
(



P.110, 126)

Function

Default setting

Customized 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

—

Automatic door locking func-
tion

Shift position
linked door lock-
ing operation

Off

—

Speed linked
door locking
operation

—

Automatic door unlocking
function

Shift position
linked door
unlocking opera-
tion

Off

—

Driver’s door
linked door
unlocking opera-
tion

—

Function

Default setting

Customized set-

ting

Operation signal (emergency
flashers)

Off

—

Operation buzzer volume

Off

—

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

—

30 seconds

120 seconds

Open door reminder buzzer
(When locking the vehicle)

Off

—

445

8-2. Customization

Vehi

cle

spec

ifi

tions

■

Smart access system with push-button start (



P.126)

■

Wireless remote control (



P.107)

■

Automatic light control system (



P.190)

Function

Default setting

Customized set-

ting

The doors that are unlocked
using the smart access sys-
tem with push-button start
can be selected

Driver’s door

All the doors

—

Smart access system with
push-button start

Off

—

Number of consecutive door
lock operations

2 times

As many as

desired

—

Function

Default setting

Customized set-

ting

Wireless remote control

Off

—

Unlocking operation

Driver’s door

unlocked in first

step, all doors

unlocked in sec-

ond step

All doors
unlocked in first
step

—

Panic function

Off

—

The function that validates the

switch of the wireless

remote control when locking
the door (



P.117)

When locking the

door

When unlocking
the door

—

Function

Default setting

Customized set-

ting

Light sensor sensitivity

Standard

-2 to 2

—

Adjust the time elapsed
before the headlights auto-
matically turn off

30 seconds

Off

—

60 seconds

90 seconds

446

8-2. Customization

■

Lights (



P.190)

■

Illumination (



P.302)

■

Multi-information display (



P.84, 89)

Function

Default setting

Customized set-

ting

Daytime Running Lights
(Daytime running lights can
be disabled)

Off

—

Function

Default setting

Customized set-

ting

Time elapsed before the inte-
rior lights turn off

15 seconds

Off

—

7.5 seconds

30 seconds

Time elapsed before the exte-
rior lights turn off

15 seconds

Off

—

7.5 seconds

30 seconds

Operation after the power
switch is turned off

Off

—

Operation when the doors
are unlocked

Off

—

Operation when you
approach the vehicle with the
electronic key on your person

Off

—

Footwell lighting

Off

—

Fading out of the outer foot
lights when they turn off

Long

Short

—

Function

Default setting

Customized set-

ting

Changeover to tachometer
when Sport mode is selected

Auto

Hybrid system

indicator (always)

—

Tachometer

(always)

EV indicator

Off

—

447

8-2. Customization

Vehi

cle

spec

ifi

tions

: The default setting varies according to countries.

: Some status screens cannot be registered (indicated on the multi-information display)

: 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

: Intersection guidance, Incoming calls, Adjust brightness

Language

English

French

—

Spanish

Units

miles (MPG US)

miles

(MPG Imperial)

—

km (L/100 km)

km (km/L)

switch settings

Drive information

Desired status

screen

—

Drive information 1

Current fuel con-

sumption

—

Average fuel con-

sumption (after

reset)

Drive information 2

Distance (range)

—

Average speed

(after reset)

Drive information 3

Average fuel con-

sumption (after

refuel)

—

Elapsed time

(after start)

Pop-up display

Off

—

Accent color

Color 1

Color 2

—

Clock

24-hour display

12-hour display

—

Function

Default setting

Customized set-

ting

448

8-2. Customization

■

Head-up display

(



P.95)

: If equipped

■

Automatic air conditioning system (



P.291)

■

Eco mode (



P.270)

■

Power windows (



P.148)

Function

Default setting

Customized set-

ting

Route guidance to destina-
tion

Off

—

Driving assist system informa-
tion

Off

—

Audio system operation sta-
tus

Off

—

Lane display

Off

—

Function

Default setting

Customized set-

ting

Switching between outside
air and recirculated air mode
linked to “AUTO” switch
operation

Off

—

A/C Auto switch operation

Off

—

Function

Default setting

Customized set-

ting

Heating/cooling operation
minimized in Eco mode

Off

—

Function

Default setting

Customized set-

ting

Mechanical key linked opera-
tion

Off

—

Wireless remote control
linked open operation

Off

—

449

8-2. Customization

Vehi

cle

spec

ifi

tions

■

Moon roof

(



P.150)

: If equipped

: This function cannot be customized unless power window operations, using the wireless

remote control or mechanical key, is enabled.

■

Turn signal lever (



P.183)

■

PKSA (Parking Support Alert)

(



P.247)

: If equipped

■

Intuitive parking assist

(



P.248)

: If equipped

Function

Default setting

Customized set-

ting

Mechanical key linked opera-
tion

Off

—

Wireless remote control
linked open or Tilt up opera-
tions

Off

—

Function

Default setting

Customized set-

ting

The number of times the turn
signal lights flash automati-
cally when the turn signal
lever is moved to the first
position during a lane change

—

Off

Function

Default setting

Customized set-

ting

Buzzer volume

—

Function

Default setting

Customized set-

ting

Display setting (When intui-
tive parking assist is operat-
ing)

Off

—

450

8-2. Customization

■

Parking Support Brake function (for static objects)

(



P.253)

: If equipped

■

Driving position memory

(



P.138)

: If equipped

■

Outside rear view mirrors (



P.146)

■

LTA (Lane Tracing Assist)

(



P.218)

Function

Default setting

Customized set-

ting

Parking Support Brake func-
tion (for static objects)

Off

—

Function

Default setting

Customized set-

ting

Driver’s seat movement when
exiting the vehicle

Standard

Off

—

Partial

Selection the door linking
driving position memory with
door unlock operation

Driver’s door

All doors

—

Function

Default setting

Customized set-

ting

Automatic mirror folding and
extending operation

Linked to the

locking/unlock-

ing of the doors

Off

—

Linked to opera-

tion of the power

switch

Linked mirror function when
reversing

Off

—

Function

Default setting

Customized set-

ting

Lane centering function

Off

—

Steering assist function

Off

—

Alert types

Steering wheel

vibration

Buzzer

—

Alert sensitivity

High

Standard

—

Lexus NX300h (2021 year). Manual in english - page 26