Lexus UX250h (2023 year). Manual in english — page 25
412
8-1. Specifications
■
Spark plug
■
12-volt battery
*
: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Ignition system
Make
DENSO FC16HR-Q8
Gap
0.031 in. (0.8 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Open voltage at 68°F (20°C):
12.0 V or higher
If the voltage is lower than the standard value,
charge the battery.
(After charging the battery, turn on the high beam
headlights for 30 seconds with the power switch
OFF, and turn the headlights off.)
Charging rates:
Quick charge
Slow charge
15 A max.
5 A max.
Hybrid transmission
Fluid capacity
*
4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid type
Toyota Genuine ATF WS
NOTICE
■
Hybrid transmission fluid type
Using transmission fluid other than the above type may cause abnormal noise or vibra-
tion, or ultimately damage the transmission of your vehicle.
413
8-1. Specifications
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*
: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
*1
: Minimum pedal clearance when depressed with a force of 67.4 lbf (300N, 30.6 kgf)
while the hybrid system is operating.
*2
: Make sure to confirm that the brake system warning light (yellow) does not illuminate. (If
the brake system warning light illuminates, refer to P.379.)
Rear differential (rear electric motor) (AWD models)
Fluid capacity
*
1.3 qt. (1.2 L, 1.1 Imp.qt.)
Fluid type
Toyota Genuine ATF WS
NOTICE
■
Transmission fluid type
Using transmission fluid other than the above type may cause abnormal noise or vibra-
tion, or ultimately damage the transmission of your vehicle.
Brakes
Pedal clearance
*1
4.29 in. (109 mm) Min.
Brake pad wear limit
0.04 in. (1.0 mm)
Pedal free play
0.04
0.24 in. (1.0
6.0 mm)
Parking brake indicator
*2
When pushing the parking brake switch for 1 to 4
seconds: comes on
When pulling the parking brake switch for 1 to 4
seconds: turns off
Fluid type
SAE J1703 or FMVSS No. 116 DOT 3
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free play
Less than 1.2 in. (30 mm)
414
8-1. Specifications
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
Tires and wheels
Tire size
225/50RF18 95V
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Front: 33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm
2
or bar)
Wheel size
18
7 J
Wheel nut torque
76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbs
Bulb No.
W
Type
Exterior
Front turn signal lights (vehicles
with single-beam headlights)
WY21W
21
A
Interior
Vanity lights
8
B
415
8-1. Specifications
8
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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 additives concentration
program.
●
Lexus strongly recommends the use of
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gas-
oline and a list of marketers, please go to
the official website 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% eth-
anol
), E85 (85% ethanol
)
(which are only some examples of fuel
containing 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 (Methylcyclo-
pentadienyl 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 while accelerating or
driving uphill. This is normal and there is
no need for concern.
Fuel information
You must only use unleaded gaso-
line.
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
B
C
416
8-1. Specifications
NOTICE
■
Notice on fuel quality
●
Do not use improper fuels. If improper
fuels are used, the engine will be dam-
aged.
●
Do not use leaded gasoline.
Leaded gasoline can cause damage to
your vehicle’s three-way catalytic con-
verters causing the emission control sys-
tem to malfunction.
●
Do not use gasohol other than the type
previously stated.
Other gasohol may cause fuel system
damage or vehicle performance prob-
lems.
●
Using unleaded gasoline with an
octane number or rating lower than
the level previously stated will cause
persistent heavy knocking.
At worst, this will lead to engine damage
and will void the vehicle warranty.
■
Fuel-related poor driveability
If poor driveability (poor hot starting,
vaporization, engine knocking, etc.) is
encountered after using a different type
of fuel, discontinue the use of that type of
fuel.
■
When refueling with gasohol
Take care not to spill gasohol. It can
damage your vehicle’s paint.
417
8-1. Specifications
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Tire size (
P.418)
Run-flat tire (RFT) or standard tire (
P.392)
This vehicle can be equipped with either run-flat tires (RFT) or standard tires. A
mark is molded on the sidewall of the run-flat tire.
DOT and Tire Identification Number (TIN) (
P.418)
Location of treadwear indicators (
P.339)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
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.421)
Maximum cold tire inflation pressure (
P.421)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Tire information
Typical tire symbols
A
B
C
D
E
F
G
H
I
J
418
8-1. Specifications
Summer tires or all season tires (
P.339)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.
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
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.
K
Typical DOT and Tire Identifica-
tion Number (TIN)
A
B
C
D
E
F
G
Tire size
A
B
C
D
E
F
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8-1. Specifications
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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)
Run-flat tire code
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
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
A
B
C
D
E
F
G
H
A
B
C
Tire section names
Uniform Tire Quality Grading
A
B
C
D
E
F
G
H
I
J
K
420
8-1. Specifications
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 con-
ditions 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.
Performance may differ 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 of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, underinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
421
8-1. Specifications
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Glossary of tire terminology
Tire related term
Meaning
Cold tire inflation pressure
Tire pressure when the vehicle 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
Recommended inflation
pressure
Cold tire inflation pressure recommended by a manufac-
turer
Accessory weight
The combined weight (in excess of those standard items
which may be replaced) of hybrid 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 vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant, and
if so equipped, air conditioning and additional weight
optional engine
Maximum loaded vehicle
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 specified 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 stan-
dard items which they replace, not previously considered in
curb weight or accessory weight, including heavy duty
brakes, ride levelers, 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 diameter
(Wheel diameter)
Nominal diameter of the bead seat
422
8-1. Specifications
Rim size designation
Rim diameter and width
Rim type designation
The industry manufacturer’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 luggage load plus 150 lb. (68 kg) times
the vehicle’s designated seating capacity
Vehicle maximum load on
the tire
The load on an individual tire that is determined by distribut-
ing to each axle its share of the maximum loaded vehicle
weight, and dividing by two
Vehicle normal load on the
tire
The load on an individual tire that is determined by distribut-
ing to each axle its share of curb weight, accessory weight,
and normal occupant weight (distributed 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 separation
A breakdown of the bond between components in the bead
Bias ply tire
A pneumatic tire in which the ply cords that extend to the
beads are laid at alternate 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 sidewall
Cord
The strands forming the plies in the tire
Cord separation
The parting of cords from adjacent rubber compounds
Cracking
Any parting within the tread, sidewall, or innerliner of the tire
extending to cord material
CT
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
423
8-1. Specifications
8
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Groove
The space between two adjacent tread ribs
Innerliner
The layer(s) forming the inside surface of a tubeless tire that
contains the inflating medium within the tire
Innerliner separation
The parting of the innerliner from cord material in the car-
cass
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears white letter-
ing, 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 sidewall of an asymmetrical tire that
has a particular side that must always face outward when
mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily intended
for use on lightweight trucks or multipurpose 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 infla-
tion pressure for that tire
Maximum permissible infla-
tion pressure
The maximum cold inflation pressure to which a tire may be
inflated
Measuring rim
The rim on which a tire is fitted for physical dimension
requirements
Open splice
Any parting at any junction of tread, sidewall, or innerliner
that extends to cord material
Outer diameter
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, decora-
tions, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipurpose
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 separation
A parting of rubber compound between adjacent plies
Tire related term
Meaning
424
8-1. Specifications
*
: Table 1
Occupant loading and distribution for vehicle normal load for various desig-
nated seating capacities
Pneumatic tire
A mechanical device made of rubber, chemicals, fabric and
steel or other materials, that, when mounted on an automo-
tive 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 substantially 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, decora-
tion, or protective bands
Sidewall
That portion of a tire between the tread and bead
Sidewall separation
The parting of the rubber compound from the cord material
in the sidewall
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-Cove-
red Surfaces, and which is marked with an Alpine Symbol
(
) on at least one sidewall
Test rim
The rim on which a tire is fitted for testing, and may be any
rim listed as appropriate for use with that tire
Tread
That portion of a tire that comes into contact with the road
Tread rib
A tread section running circumferentially around a tire
Tread separation
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-holding fixture
The fixture used to hold the wheel and tire assembly
securely during testing
Tire related term
Meaning
425
8-1. Specifications
8
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Designated seating capac-
ity, Number of occupants
Vehicle normal load, Num-
ber of occupants
Occupant distribution in a
normally loaded vehicle
2 through 4
2
2 in front
5 through 10
3
2 in front, 1 in second seat
11 through 15
5
2 in front, 1 in second seat, 1 in
third seat, 1 in fourth seat
16 through 20
7
2 in front, 2 in second seat, 2
in third seat, 1 in fourth seat
426
8-2. Customization
8-2.Customization
■
Changing using the meter control
switches
1
Press
or
of the meter con-
trol switches, and select
.
2
Press
or
of the meter con-
trol switches, select the item, and
press “OK”.
3
Press
or
of the meter con-
trol switches, select the desired set-
ting, and press “OK”.
To go back to the previous screen or
exit the customize mode, press
.
■
Changing using the Center Dis-
play
1
Select
on the main menu.
2
Select “Vehicle customize” on the
sub menu.
Various setting can be changed. Refer to
the list of settings that can be changed for
details.
■
When customizing using the Center
Display
Stop the vehicle in a safe place, apply the
parking brake, and shift the shift lever to P.
Also, to prevent 12-volt battery discharge,
leave the hybrid system operating while
customizing the features.
Some function settings are changed simultaneously with other functions being cus-
tomized. Contact your Lexus dealer for further details.
Settings that can be changed using the Center Display
Settings that can be changed using the meter control switches
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available,
= Not available
Customizable features
Your vehicle includes a variety of
electronic features that can be per-
sonalized to your preferences. The
settings of these features can be
changed by using the meter control
switches, the Center Display 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
A
B
C
427
8-2. Customization
8
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■
Gauges, meters and multi-information display (
P.79, 83, 89)
Function
*1
Default setting
Customized set-
ting
Language
English
French
O
*2
O
Spanish
Units
*3
miles (MPG)
km (km/L)
O
*2
O
km (L/100 km)
miles (MPG Impe-
rial)
Speedometer display
*4
Digital
Analog
O
Drive information 1
Current fuel con-
sumption
*5
O
Average fuel econ-
omy (after reset)
Drive information 2
Distance (driving
range)
*5
O
Average vehicle
speed (after reset)
Pop-up display
On
Off
O
Accent color
Color 1
Color 2
O
Tachometer setting
Change according
to driving mode
Always tachome-
ter
O
Always Hybrid
System Indicator
Rev indicator
*6
On
Off
O
Rev indicator red zone set-
ting
*6
4000 rpm
2000 - 6200 rpm
O
Rev peak
*6
On
Off
O
EV indicator
On
Off
O
Suggestion function
On
On (when the vehi-
cle is stopped)
O
*7
O
Off
Rear seat reminder function
On
Off
O
A
B
C
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