Lexus RX500h (2023 year). Manual in english

569

8-1. Specifications

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This number is also on the Certification
Label.

■

Engine number

The engine number is stamped on the

engine block as shown.



RX350h



RX500h



RX350h



RX500h

Engine

Model

A25A-FXS

Type

4-cylinder in line, 4-cycle, gasoline

Bore and stroke

3.44



4.07 in. (87.5



103.4 mm)

Displacement

151.8 cu. in. (2487 cm

)

Valve clearance (engine cold)

Automatic adjustment

Model

T24A-FTS

Type

4-cylinder in line, 4-cycle, gasoline (with tur-
bocharger)

Bore and stroke

3.44



3.92 in. (87.5



99.5 mm)

570

8-1. Specifications



Front



Rear



Front

Displacement

146.0 cu. in. (2393 cm

)

Valve clearance (engine cold)

Automatic adjustment

Drive belt tension

Automatic adjustment

Fuel

Fuel type

Unleaded gasoline only

Octane Rating



RX350h

91AKI (Research Octane Number 96) or
higher [recommended]
87AKI (Research Octane Number 91) or
higher [minimum]



RX500h

91AKI (Research Octane Number 96) or
higher

Fuel tank capacity
(Reference)

17.2 gal. (65 L, 14.3 Imp. gal.)

Electric motor (traction motor) (RX350h)

Type

Permanent magnet synchronous motor

Maximum output

134 kW

Maximum torque

199 ft•lbf (270 N•m, 27.5 kgf•m)

Type

Permanent magnet synchronous motor

Maximum output

40 kW

Maximum torque

89 ft•lbf (121 N•m, 12.3 kgf•m)

Electric motor (traction motor) (RX500h)

Type

Permanent magnet synchronous motor

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

Rear



RX350h



RX500h

■

Oil capacity (Drain and refill



ref-

erence

)



RX350h



RX500h

: The engine oil capacity is a reference

quantity to be used when changing the
engine oil. When actually adding the
engine oil, make sure that the oil level is

Maximum output

64 kW

Maximum torque

215 ft•lbf (292 N•m, 29.8 kgf•m)

Type

Permanent magnet synchronous motor

Maximum output

75.9 kW

Maximum torque

124 ft•lbf (168.5 N•m, 17.2 kgf•m)

Hybrid battery (traction battery)

Type

Nickel-Metal hydride battery

Voltage

1.2 V/cell

Capacity

5 Ah

Quantity

216 cells

Nominal voltage

259.2 V

Type

Nickel-Metal hydride battery

Voltage

1.2 V/cell

Capacity

5 Ah

Quantity

240 cells

Nominal voltage

288 V

Lubrication system

With filter

4.8 qt. (4.5 L, 4.0 Imp. qt.)

Without fil-
ter

4.4 qt. (4.2 L, 3.7 Imp. qt.)

With filter

5.6 qt. (5.3 L, 4.7 Imp. qt.)

Without fil-
ter

5.3 qt. (5.0 L, 4.4 Imp. qt.)

572

8-1. Specifications

between the low level mark and refill
upper limit mark (



P.476). Warm up

the engine and turn off the hybrid sys-
tem, wait about 5 minutes, and check the
oil level on the dipstick.

■

Engine oil selection (RX350h)

“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-6B multigrade
engine oil
Recommended viscosity: SAE 0W-16
SAE 0W-16 is the best choice for good
fuel economy and good starting in cold
weather.
If SAE 0W-16 is not available, SAE
0W-20 oil may be used. However, it
must be replaced with SAE 0W-16 at
the next oil change.

Outside temperature

Oil viscosity (0W-16 is explained here
as an example):
• The 0W in 0W-16 indicates the

characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather.

• The 16 in 0W-16 indicates the vis-

cosity characteristic of the oil when
the oil is at high temperature. An oil
with a higher viscosity (one with a
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.

How to read oil container label:
API registered marks is added to some
oil containers to help you select the oil
you should use.

■

Engine oil selection (RX500h)

“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil”
or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-6A multigrade
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good starting
in cold weather.
If SAE 0W-20 is not available, SAE
5W-20 oil may be used. However, it
must be replaced with SAE 0W-20 at
the next oil change.

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8-1. Specifications

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Outside temperature

Oil viscosity (0W-20 is explained here
as an example):
• The 0W in 0W-20 indicates the

characteristic of the oil which allows
cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold
weather.

• The 20 in 0W-20 indicates the vis-

cosity characteristic of the oil when
the oil is at high temperature. An oil

with a higher viscosity (one with a
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.

How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you
should use.

: The coolant capacity is a reference quantity.

Cooling system

Capacity

RX350h



Gasoline engine

8.7 qt. (8.2 L, 7.2 Imp. qt.)



Power control unit

2.1 qt. (2.0 L, 1.8 Imp. qt.)

RX500h



Gasoline engine

9.9 qt. (9.4 L, 8.3 Imp. qt.)



Intercooler/Power control unit

5.6 qt. (5.3 L, 4.7 Imp. qt.)

Coolant type

Use either of the following:



“Toyota Super Long Life Coolant”



Similar high-quality ethylene glycol-based non-silicate,
non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology

Do not use plain water alone.

574

8-1. Specifications

If replacement is necessary, contact your Lexus dealer.

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

Ignition system (spark plug)

Make

RX350h

DENSO FC16HR-Q8

RX500h

NGK DILZKAR8E7H

Gap

RX350h

0.03 in. (0.8 mm)

RX500h

0.03 in. (0.7 mm)

NOTICE

■

Iridium-tipped spark plugs

Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

Electrical system (12-volt battery)

Open voltage at 68°F (20°C):

12.0 V or higher
(Turn the power switch off and turn on the head-
lights for 30 seconds.)

Charging rates:
Slow charge

5 A max.

Transmission

Fluid capacity

RX350h

4.6 qt. (4.4 L, 3.9 Imp. qt.)

RX500h

6.8 qt. (6.4 L, 5.6 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.

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8-1. Specifications

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atio

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

: Minimum pedal clearance when depressed with a force of 67.5 lbf (300 N, 30.6 kgf)

Rear differential (rear electric motor) (RX350h)

Fluid capacity

1.8 qt. (1.7 L, 1.5 Imp. qt.)

Fluid type

Toyota Genuine ATF WS

NOTICE

■

Rear differential fluid type

Using differential fluid other than the above type may cause abnormal noise or vibration,

or ultimately damage the differential of your vehicle.

Rear transaxle (rear electric motor) (RX500h)

Fluid capacity

3.2 qt. (3.1 L, 2.7 Imp. qt.)

Fluid type

e-Transaxle Fluid TE

NOTICE

■

Rear transaxle fluid type

Using transaxle fluid other than the above type may cause abnormal noise or vibration, or

ultimately damage the transaxle of your vehicle.

Brakes

Pedal clearance

4.8 in. (122 mm) Min.

Pedal free play

0.04



0.24 in. (1



6 mm)

Brake pad wear limit

0.04 in. (1.0 mm)

Parking brake indicator

When pushing the parking brake switch for 1 to 2
seconds: turns off
When pulling the parking brake switch for 1 to 2
seconds: comes on

Fluid type

FMVSS No. 116 DOT 3 or SAE J1703
FMVSS No. 116 DOT 4 or SAE J1704

576

8-1. Specifications

while the hybrid system is operating.

: Make sure to confirm that the brake warning light (yellow) does not illuminate. (If the

brake warning light illuminates, refer to P.516.)



Type A

Steering

Free play

Less than 0.59 in. (15 mm)

Tires and wheels

Tire size

235/60R19 103V, T165/90D18 107M (spare)

Tire inflation pressure
(Recommended cold tire
inflation pressure)



Front

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Rear

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 5 psi (30 kPa, 0.3 kgf/cm

or bar) to the front and rear

tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.

Wheel size



8J, 18



4T (spare)

Wheel bolt torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

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

Type B



Type C

Tire size

235/60R19 103V, T165/70D20 119M (spare)

Tire inflation pressure
(Recommended cold tire
inflation pressure)



Front

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Rear

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 5 psi (30 kPa, 0.3 kgf/cm

or bar) to the front and rear

tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.

Wheel size



8J, 20



4T (spare)

Wheel bolt torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Tire size

235/50R21 101V, T165/90D18 107M (spare)

Tire inflation pressure
(Recommended cold tire
inflation pressure)



Front

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Rear

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)

Add 8 psi (50 kPa, 0.5 kgf/cm

or bar) to the front and rear

tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.

Wheel size



8J, 18



4T (spare)

Wheel bolt torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

578

8-1. Specifications



Type D



Type E

A: Wedge base bulbs (amber)

Tire size

235/50R21 101V, T165/70D20 119M (spare)

Tire inflation pressure
(Recommended cold tire
inflation pressure)



Front

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Rear

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 8 psi (50 kPa, 0.5 kgf/cm

or bar) to the front and rear

tires. Never exceed the maximum cold tire inflation pres-

sure indicated on the tire sidewall.

Wheel size



8J, 20



4T (spare)

Wheel bolt torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Tire size

235/50R21 101W, T165/70D20 119M (spare)

Tire inflation pressure
(Recommended cold tire
inflation pressure)



Front

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Rear

33 psi (230 kPa, 2.3 kgf/cm

or bar)



Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Driving at high speeds (above 100 mph [160 km/h]) (in

countries where such speeds are permitted by law)
Add 6 psi (40 kPa, 0.4 kgf/cm

or bar) to the front and rear

tires. Never exceed the maximum cold tire inflation pres-

sure indicated on the tire sidewall.

Wheel size



8J, 20



4T (spare)

Wheel bolt torque

103 ft•lbf (140 N•m, 14.3 kgf•m)

Light bulbs

Bulb No.

Type

Exterior

Front turn signal lights (bulb type)

WY21W

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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 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 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%

ethanol [

]), E85 (85% ethanol [

])

(which are only some examples of fuel

containing more than 15% ethanol).

●

RX350h: If you use gasohol in your vehi-

cle, be sure that it has an octane rating no

lower than 87.

Fuel information

You must only use unleaded gaso-
line.

RX350h: Recommended to use
premium unleaded gasoline with
octane rating of 91 (Research
Octane Number of 96) or higher
for optimum engine performance.
You may use unleaded gasoline
with octane rating as low as 87
(Research Octane Number of 91).
In this case, engine performance
may be decreased. Use of octane
rating unleaded gasoline with an
octane rating lower than 87 may
result in engine knocking. Per-
sistent knocking can lead to engine
damage.

RX500h: Select premium
unleaded gasoline with an octane
rating of 91 (Research Octane
Number 96) or higher required for
optimum engine performance and
fuel economy. If the octane rating is
less than 91, damage to the engine
may occur and may void the vehicle
warranty.

At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.

580

8-1. Specifications

●

RX500h: If you use gasohol in your vehi-

cle, be sure that it has an octane rating no

lower than 91.

●

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 while accelerating or

driving uphill. This is normal and there is

no need for concern.

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

system 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 may cause

persistent heavy knocking.

At worst, this may lead to engine dam-

age and will void the vehicle warranty.

■

When refueling with gasohol

Take care not to spill gasohol. It can dam-

age your vehicle’s paint.

■

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.

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

Full-size tire



Compact spare tire

Tire size (



P.583)

DOT and Tire Identification Number (TIN) (



P.582)

Location of treadwear indicators (



P.483)

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

Tire information

Typical tire symbols

A
B
C
D

582

8-1. Specifications

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.483)

Maximum cold tire inflation pressure (



P.576)

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.483)

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
mark
Manufacturer’s code
Manufacturing week
Manufacturing year

: The DOT symbol certifies that the tire

conforms to applicable Federal Motor

Typical DOT and Tire Identifica-
tion Number (TIN)

A
B
C

E
F

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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
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.

Tire size

B
C

E
F

Tire section names

Uniform Tire Quality Grading

B
C

A
B
C
D

E
F

584

8-1. Specifications

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.
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.

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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
manufacturer

Accessory weight

The combined weight (in excess of those standard
items which may be replaced) of hybrid transmis-
sion, power steering, power brakes, power win-
dows, 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 equip-
ment, 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 fol-

lows

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 produc-
tion options weighing over 5 lb. (2.3 kg) in excess of
the standard items which they replace, not previ-
ously considered in curb weight or accessory
weight, including heavy duty brakes, ride levelers,
roof rack, heavy duty 12-volt battery, and special
trim

586

8-1. Specifications

Rim

A metal support for a tire or a tire and tube assem-
bly upon which the tire beads are seated

Rim diameter (Wheel diameter)

Nominal diameter of the bead seat

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
distributing 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
distributing 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 substan-
tially 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 com-
pounds

Tire related term

Meaning

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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

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 carcass

Intended outboard sidewall

(a) The sidewall that contains 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 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 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 permissi-
ble inflation pressure for that tire

Maximum permissible inflation pres-
sure

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

Measuring rim

The rim on which a tire is fitted for physical dimen-
sion requirements

Open splice

Any parting at any junction of tread, sidewall, or
innerliner that extends to cord material

Tire related term

Meaning

588

8-1. Specifications

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, 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 separation

A parting of rubber compound between adjacent
plies

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 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, decoration, 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-Cov-
ered Surfaces, and which is marked with an Alpine

Symbol (

) on at least one sidewall

Tire related term

Meaning

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: Table 1 -Occupant loading and distribution for vehicle normal load for various desig-

nated seating capacities

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

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 in front

5 through 10

2 in front, 1 in second seat

11 through 15

2 in front, 1 in second seat, 1 in

third seat, 1 in fourth seat

16 through 20

2 in front, 2 in second seat, 2

in third seat, 1 in fourth seat

590

8-2. Customization

8-2.Customization

■

To change setting with

Select

on the center display.

Select “Vehicle customize” or
“Driving assist”.

Select the item to change the set-
tings of from the list.

For functions that can be turned on/off,
select

(ON) /

(OFF).

For functions whose level can be adjusted,

such as volume, sensor sensitivity, etc.,

slide the icon on the bar.

■

To change setting with

Select

on the center display.

Select “Driving assist”.

Select the item to change the set-
tings of from the list.

Each time the switch is selected, the setting
will be enabled/disabled.
When enabling is selected, the item display
will be emphasized.

■

During customization

Stop the vehicle in a safe place, apply the

parking brake, and shift the shift position to

P. Also, to prevent 12-volt battery discharge,

leave the hybrid system operating while

customizing the features.

■

Using the

icon

Some vehicle customize settings can also
be changed through the

icon.

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 by your Lexus dealer

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 by using the center dis-
play or at your Lexus dealer.

Some of the customizable features
are changed in conjunction with the
settings of My Settings. (



P.182)

Customizing vehicle features

WARNING

■

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

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

■

Gauges, meters and multi-information display (



P.86, 90, 104)

The language, units of measure, etc. of some items displayed on the meter or
multi-information display will be changed according to settings on the center dis-
play. Refer to “MULTIMEDIA OWNER'S MANUAL”.

: This setting changes in accordance with My Settings

: F SPORT models

: RX350h

: RX500h

■

Head-up Display

(



P.101)

: If equipped

Function

Default setting

Customized setting

Meter display type

Type 1

Type 2

—

Type 3

Tachometer setting

Change according

to driving mode

Always tachometer

—

Always Hybrid Sys-

tem Indicator

EV indicator

Off

—

Rev indicator

4000 rpm

5000 rpm

2000 - 6000

rpm

2000 - 6200 rpm

—

Off

Rev peak

Off

—

Suggestion function

On (when the vehi-

cle is stopped)

—

Off

Stop light indicator

Off

—

Function

Default setting

Customized setting

Head-up display

Off

—

Head-up display type

Standard

Full

—

Minimum

592

8-2. Customization

: This setting changes in accordance with My Settings

■

Steering wheel switches (vehicles with a head-up display) (



P.104)

: This setting changes in accordance with My Settings

■

Door lock (



P.119, 549)

Function

Default setting

Customized setting

Right steering wheel switch
favorite functions

Display control

Driving mode select

switch

—

Custom

Left steering wheel switch
favorite functions

Audio

Climate

—

Custom

Switch sensor high sensitivity
mode (winter glove mode)

Off

—

Sensitivity for starting display

Standard

High

—

OFF

Time-out period

Standard

Short

—

Long

Function

Default setting

Customized setting

Door lockswitch indicatorillu-
mination time

30 seconds

60 seconds

—

600 seconds

1200 seconds

Inside door opener switch
operation adjustment (door
opening function adjustment)

Short

Mid

—

Long

Multi-information dis-
play/buzzer operation when a
door opener switch inside the
vehicle is operated

Off

—

593

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: This setting changes in accordance with My Settings

■

Power back door (



P.124)

Inside/outside door opener
switch operating method

Unlatch while Push-

ing switch

0.6 Seconds

—

Operating from

inside the cabin: 0.6

Seconds

Operating from out-

side: Unlatch while

Pushing switch

Operating from
inside the cabin:

Unlatch while Push-

ing switch

Operating from out-

side: 0.6 Seconds

Unlocking using a mechanica
lkey

Driver’s door

unlocked in one step,

all doors unlocked in

two step

All doors unlocked in

one step

—

Shift position linked door lock-
ing function*

Off

Automatic door unlocking
function

Shift position linked

door unlocking

operation

OFF

Driver’s door linked

door unlocking

operation

Function

Default setting

Customized setting

Power back door

Off

—

Power back door opening
position

1 to 5

—

User setting

Buzzer volume

Level 3

Level 1

—

Level 2

Kick sensor

Off

—

Kick operation buzzer

Off

—

Function

Default setting

Customized setting

594

8-2. Customization

: Configured by operating the

switch of the lower back door.

: If equipped

■

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



P.119, 139)

: This setting changes in accordance with My Settings

■

Smart access system with push-button start (



P.119, 139)

The function that validates the

switch of the wireless

remote control when locking
the door

Off

—

Close & lock (walk away) func-
tion

Off

—

Hands free close & lock func-
tion

Off

—

Function

Default setting

Customized setting

Operation buzzer volume

Off

1 to 7

Operation signal (Emergency
flashers)

Off

Time elapsed before automatic
door lock function is activated
if door is not opened after
being unlocked

60 seconds

Off

30 seconds

120 seconds

Open door warning buzzer

Off

—

Function

Default setting

Customized setting

Smart access system with
push-button start

Off

—

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

Driver’s door

All the doors

Function

Default setting

Customized setting

595

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tions

■

Wireless remote control (



P.114, 119, 124)

: This setting changes in accordance with My Settings

■

Driving position memory

(



P.178)

: If equipped

Number of consecutive door
lock operations

2 times

As many as desired

—

Time elapsed before unlocking
all the door when gripping and
holding the driver’s door han-
dle

2 seconds

Off

—

1.5 seconds

2.5 seconds

Function

Default setting

Customized setting

Unlocking operation

Driver’s door

unlocked in one step,

all doors unlocked in

two step

All doors unlocked in

one step

Panic function

Off

—

Power back door unlocking
operation

Press and hold

(short)

One short press

—

Push twice

Press and hold (long)

Off

Locking operation when door
opened

Off

Function

Default setting

Customized setting

Driver’s seat movement when
exiting the vehicle

Standard

Off

Partial

Driver’s seat upward move-
ment when exiting the vehi-
cle

Standard

Off

Partial

Steering wheel movement

Tilt only

Telescopic only

—

Tilt and telescopic

Off

Function

Default setting

Customized setting

596

8-2. Customization

: This setting changes in accordance with My Settings

■

Outside rear view mirrors (



P.166)

■

Power windows, and moon roof

or panoramic moon roof

(



P.169, 171, 174)

: If equipped

■

Moon roof

or panoramic moon roof

(



P.171, 174)

: If equipped

■

Automatic light control system (



P.232)

: This setting changes in accordance with My Settings

Function

Default setting

Customized setting

Automatic mirror folding and
extending operation

Linked to the lock-

ing/unlocking of the

doors

Off

—

Linked to operation

of the power switch

Function

Default setting

Customized setting

Mechanical key linked opera-
tion

Off

—

Wireless remote control linked
operation

Off

On (open only)

—

Function

Default setting

Customized setting

Linked operation of compo-
nents when mechanical key is
used (open only)

Slide only

Tilt only

—

Linked operation of compo-
nents when wireless remote
control is used

Slide only

Tilt only

—

Function

Default setting

Customized setting

Light sensor sensitivity

Standard

-2 to 2

Time elapsed before head-
lights automatically turn off
after doors are closed

30 seconds

Off

60 seconds

90 seconds

Windshield wiper linked head-
light illumination

Off

—

597

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tions

■

Lights (



P.232)

: This setting changes in accordance with My Settings

: Except for Canada

■

Adaptive High-beam System

(



P.234)

: If equipped

: The headlights will operate under Automatic High Beam control. (



P.237)

■

Pre-Collision System (



P.261)

: This setting changes in accordance with My Settings

■

Front Cross Traffic Alert

(



P.290)

: If equipped

Function

Default setting

Customized setting

Daytime running lights

Off

—

Welcome lighting

Off

—

Function

Customized setting

Adaptive High-beam System

ON/OFF

—

Brightness and illuminated area
adjustment of the high beams accord-
ing to the vehicle speed

9 mph (15 km/h) / 19 mph (30 km/h)

/ 50 mph (80 km/h)

—

Projection distance adjustment of the
low beams according to the distance
to a preceding vehicle

ON/OFF

—

Upper level high beam light distribu-
tion control

ON/OFF

—

Function

Customized setting

Pre-Collision System

ON/OFF

—

Warning timing

Later/Default/Earlier

—

Function

Customized setting

Front Cross Traffic Alert

ON/OFF

—

Alert timing

Later/Default/Earlier

—

598

8-2. Customization

: This setting changes in accordance with My Settings

■

Lane Departure Alert system (



P.279)

: This setting changes in accordance with My Settings

■

Lane Change Assist

(



P.276)

: If equipped

: This setting changes in accordance with My Settings

■

Dynamic Radar Cruise Control (



P.295)

: This setting changes in accordance with My Settings

■

Proactive Driving Assist (



P.285)

Function

Customized setting

Lane Departure Alert system

ON/OFF

—

Alert timing

Default/Earlier

—

Alert options

Vibration/Audible

—

Function

Customized setting

Lane Change Assist

ON/OFF

—

Function

Customized setting

Extended Resume Time

ON/OFF

—

Acceleration setting

High/Mid/Low

—

Guide message

ON/OFF

—

Curve speed reduction

High/Mid/Low/OFF

—

Function

Customized setting

Proactive Driving Assist

ON/OFF

—

Support sensitivity

Low/Mid/High

—

Steering Assist

ON/OFF

—

Deceleration Assist

ON/OFF

—

Obstacle Anticipation Assist

ON/OFF

—

599

8-2. Customization

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cle

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ifi

tions

: This setting changes in accordance with My Settings

■

Road Sign Assist

(



P.293)

: If equipped

: This setting changes in accordance with My Settings

■

Driver break suggestion (



P.281)

■

Traffic Jam Assist

(



P.313)

: If equipped

: This setting changes in accordance with My Settings

■

Driver monitor

(



P.259)

: If equipped

: This setting changes in accordance with My Settings

Function

Customized setting

Road Sign Assist

ON/OFF

—

Excess speed notification method

None/Visual/Visual and Audible

—

Other notifications method

None/Visual/Visual and Audible

—

Excess speed notification level

5 mph (10 km/h) / 3 mph (5 km/h) / 1

mph (2 km/h)

—

Function

Customized setting

Driver break suggestion

ON/OFF

—

Function

Customized setting

Traffic Jam Assist

ON/OFF

—

Driver Monitor Camera Recording

ON/OFF

—

Function

Customized setting

Warning function

ON/OFF

—

600

8-2. Customization

■

BSM (Blind Spot Monitor) (



P.319)

: This setting changes in accordance with My Settings

■

Intuitive parking assist

(



P.328)

: If equipped

: This setting changes in accordance with My Settings

: The sound volume is linked among the intuitive parking assist, RCTA, and RCD.

■

RCTA (Rear cross traffic alert) function (



P.337)

: The sound volume is linked among the intuitive parking assist, RCTA, and RCD.

: This setting changes in accordance with My Settings

Function

Default setting

Customized setting

BSM (Blind Spot Monitor)

Off

—

Outside rear view mirror indi-
cator brightness

Bright

Dim

—

Alert timing for presence of
approaching vehicle (sensitiv-
ity)

Intermediate

Early

—

Late

Buzzer warning

OFF

—

Function

Default setting

Customized setting

Intuitive parking assist

OFF

—

Buzzer volume of Intuitive
parking assist when operat-
ing

*2, 3

Level 2

Level 1

Level 3

Function

Default setting

Customized setting

RCTA (Rear cross traffic alert)
function

Off

—

Buzzer volume of RCTA when
operating

*1, 2

Level 2

Level 1

—

Level 3

Lexus RX500h (2023 year). Manual in english - page 18