Lexus ES300H (2023 year). Manual in english

373

7-2. Steps to take in an emergency

When trouble

ari

ses

switch off with the shift lever in any position

other than P.
Shift the shift lever to P.

■

If “Shift is in N Release accelerator

before shifting” is displayed

The accelerator pedal has been depressed

when the shift lever is in N.
Release the accelerator pedal and shift the

shift lever to D or R.

■

If “Accelerator pedal is pressed” is dis-

played

The accelerator pedal has been depressed

when the shift lever is in P.
Release the accelerator pedal.

■

If “Press brake when vehicle is stopped

Hybrid system may overheat” is dis-

played

The message may be displayed when the

accelerator pedal is depressed to hold the

vehicle while the vehicle is stopped on an

incline, etc. The hybrid system may over-

heat. Release the accelerator pedal and

depress the brake pedal.

■

If “Auto Power Off to Conserve Bat-

tery” is displayed

Power was turned off due to the automatic

power off function. Next time when starting

the hybrid system, operate the hybrid sys-

tem for approximately 5 minutes to

recharge the 12-volt battery.

■

If “High Power Consumption Power to

Climate Temporarily Limited” is dis-

played

Turn off unnecessary electronic equipment

to reduce power consumption.
Please wait until the power supply returns

to normal.

■

If “Headlight System Malfunction Visit

Your Dealer” is displayed

The following systems may be malfunction-

ing. Have the vehicle inspected by your

Lexus dealer immediately.

●

The LED headlight system

●

The automatic headlight leveling system

(if equipped)

●

AHB (Automatic High Beam)

■

If “Radar Cruise Control Unavailable

See Owner’s Manual” is shown

The dynamic radar cruise control with full-

speed range system is suspended tempo-

rarily or until the problem shown in the mes-

sage is resolved. (causes and coping

methods:



P.180)

■

If “Radar Cruise Control Unavailable” is

shown

The dynamic radar cruise control with full-

speed range system cannot be used tempo-

rarily. Use the system when it becomes

available again.

■

If a message that indicates the malfunc-

tion of front camera is displayed

The following systems may be suspended

until the problem shown in the message is

resolved. (



P.180, 360)

●

PCS (Pre-Collision System)

●

LTA (Lane Tracing Assist)

●

AHB (Automatic High Beam)

●

RSA (Road Sign Assist) (if equipped)

●

Dynamic radar cruise control with full-

speed range

■

If a message that indicates the malfunc-

tion of radar sensor is displayed

The following systems may be suspended

until the problem shown in the message is

resolved. (



P.180, 360)

●

PCS (Pre-Collision System)

●

LTA (Lane Tracing Assist)

●

Dynamic radar cruise control with full-

speed range

■

If “Maintenance Required Soon” is dis-

played

Indicates that all maintenance according to

the driven distance on the maintenance
schedule

should be performed soon.

Comes on approximately 4500 miles

(7200 km) after the message has been

reset. If necessary, perform maintenance.

Please reset the message after the mainte-

nance is performed. (



P.310)

: Refer to the separate “Scheduled Main-

tenance” or “Owner’s Manual Supple-

374

7-2. Steps to take in an emergency

ment” for the maintenance interval
applicable to your vehicle.

■

If “Maintenance Required Visit Your

Dealer” is displayed

Indicates that all maintenance is required to

correspond to the driven distance on the
maintenance schedule

Comes on approximately 5000 miles

(8000 km) after the message has been

reset. (The indicator will not work properly

unless the message has been reset.) Per-

form the necessary maintenance. Please

reset the message after the maintenance is

performed. (



P.310)

: Refer to the separate “Scheduled Main-

tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.

■

If “Oil Maintenance Required Soon” is

displayed

Indicates that the engine oil should be

scheduled to be changed.
Check the engine oil and change it if neces-

sary. After changing the engine oil, make

sure to reset the message. (



P.310)

■

If “Oil Maintenance Required” is dis-

played

Indicates that the engine oil should be

changed.
Check and change the engine oil, and oil fil-

ter by your Lexus dealer. After changing

the engine oil, make sure to reset the mes-

sage. (



P.321)

■

If a message that indicates the need for

visiting your Lexus dealer is displayed

The system or part shown on the multi-

information display is malfunctioning. Have

the vehicle inspected by your Lexus dealer

immediately.

■

If a message that indicates the need for

referring to Owner’s Manual is dis-

played

●

If any of the following messages are

shown on the multi-information display,

follow the instructions.

• “Engine Coolant Temp High” (



P.391)

●

If any of the following messages are

shown on the multi-information display, it

may indicate a malfunction. Have the

vehicle inspected by your Lexus dealer

immediately.

• “Access System with Elec. Key Malfunc-

tion”

• “Hybrid system malfunction”

• “Check Engine”

• “Hybrid battery system malfunction”

• “Accelerator system malfunction”

●

If any of the following messages are

shown on the multi-information display, it

may indicate a malfunction. Immediately

stop the vehicle and contact your Lexus

dealer.

• “Braking Power Low”

• “Charging System Malfunction”

• “Oil Pressure Low”

●

If any of the following messages are

shown on the multi-information display,

the vehicle may have run out of fuel. Stop

the vehicle in a safe place and, if the fuel

level is low, refuel the vehicle. (



P.62)

• “Hybrid system stopped”

• “Engine stopped”

●

If “Maintenance required for Traction

battery cooling parts” is shown, the filter

may be clogged, the air intake vent may

be blocked, or there may be a gap in the

duct. Therefore, perform the following

correction procedure.

• If the air intake vent and filter of the

hybrid battery (traction battery) are dirty,

perform the procedure on P.340 to

clean them.

• If the warning message is shown when

the air intake vent and filter of the hybrid

battery (traction battery) are not dirty,

have the vehicle inspected by your Lexus

dealer.

NOTICE

■

If “High Power Consumption Power

to Climate Temporarily Limited” is

displayed frequently

There is a possible malfunction relating

to the charging system or the 12-volt bat-

tery may be deteriorating. Have the vehi-

cle inspected by your Lexus dealer.

375

7-2. Steps to take in an emergency

n t

ris



Stop the vehicle in a safe place on a
hard, flat surface.



Set the parking brake.



Shift the shift lever to P.



Stop the hybrid system.



Turn on the emergency flashers.
(



P.354)

NOTICE

■

If “Maintenance Required For Trac-

tion Battery At Your Dealer” is dis-

played (for vehicles sold in except

Canada)

The hybrid battery (traction battery) is

scheduled to be inspected or replaced.

Have the vehicle inspected by your

Lexus dealer immediately.

●

Continuing to drive the vehicle without

having the hybrid battery (traction bat-

tery) inspected will cause the hybrid

system not to start.

●

If the hybrid system does not start,

contact your Lexus dealer immedi-

ately.

If you have a flat tire

Your vehicle is equipped with a
spare tire. The flat tire can be
replaced with the spare tire.
For details about tires:



P.327

WARNING

■

If you have a flat tire

Do not continue driving with a flat tire.

Driving even a short distance with a flat

tire can damage the tire and the wheel

beyond repair, which could result in an

accident.

Before jacking up the vehicle

376

7-2. Steps to take in an emergency

Wheel nut wrench

Wheel lock key

(if equipped)

Jack

Jack handle

Spare tire

: Documentation relating to the wheel lock key, such as the registration and I.D. card, is

inside the glove box.

Location of the spare tire, jack and tools

WARNING

■

Using the tire jack

Observe the following precautions.

Improper use of the tire jack may cause

the vehicle to suddenly fall off the jack,

leading to death or serious injury.

●

Do not use the tire jack for any pur-

pose other than replacing tires or

installing and removing tire chains.

●

Only use the tire jack that comes with

this vehicle for replacing a flat tire.

Do not use it on other vehicles, and do

not use other tire jacks for replacing

tires on this vehicle.

●

Put the jack properly in its jack point.

●

Do not put any part of your body under

the vehicle while it is supported by the

jack.

●

Do not start the hybrid system or drive

the vehicle while the vehicle is sup-

ported by the jack.

377

7-2. Steps to take in an emergency

n t

ris

When replacing tires on a vehicle with
wheel lock nuts, use the following pro-
cedures to remove and install the
wheel lock nuts. The wheel lock key is
stored in the tray inside the luggage
compartment. Always return the wheel
lock key to its original position after
use, so that it does not get lost.

■

Removal

For ease of removal, the wheel lock nut
should always be the first one loos-
ened.

Place the wheel lock key on top of
the wheel lock nut, turning until the
wheel lock key and wheel lock nut
patterns engage.

Place the wheel nut wrench on the
wheel lock key, and while applying
pressure on the wheel lock key,
loosen the wheel lock nut.

■

Installation

For ease of installation, the wheel lock
nut should always be the last one tight-
ened.

By hand, Install a wheel lock nut on
the wheel to be installed.

Place the wheel lock key on top of
the wheel lock nut, turning until the
wheel lock key and wheel lock nut
patterns engage.

Place the wheel nut wrench on the
wheel lock key, and while applying
pressure on the wheel lock key,
tighten the wheel lock nut to the
recommended torque.

Open the trunk.

Pull the lever upwards when lifting
the luggage mat up.

WARNING

●

Do not raise the vehicle while some-

one is inside.

●

When raising the vehicle, do not put an

object on or under the jack.

●

Do not raise the vehicle to a height

greater than that required to replace

the tire.

●

Use a jack stand if it is necessary to get

under the vehicle.

●

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

Wheel lock nut (if equipped)

NOTICE

Do not use an impact wrench. Using an

impact wrench may cause permanent

damage to wheel lock nut and wheel lock

key. If in doubt about wheel lock applica-

tion, contact your Lexus dealer.

Taking out the jack

378

7-2. Steps to take in an emergency

The lever can be hooked on the
edge of the trunk.

Remove the jack.

Remove the auxiliary box.

Loosen the center fastener that
secures the spare tire.

Chock the tires.

NOTICE

■

To prevent damage to luggage mat

When closing the trunk lid, do not leave

the luggage mat lever hooked on the

edge of the trunk.

Taking out the spare tire

WARNING

■

When storing the spare tire

Be careful not to catch fingers or other

body parts between the spare tire and

the body of the vehicle.

Replacing a flat tire

Flat tire

Wheel chock positions

Front left-
hand side

Behind the rear right-hand
side tire

Front right-
hand side

Behind the rear left-hand
side tire

Rear left-
hand side

In front of the front right-
hand side tire

Rear right-
hand side

In front of the front left-
hand side tire

379

7-2. Steps to take in an emergency

n t

ris

Slightly loosen the wheel nuts (one
turn).

Turn the tire jack portion

hand until the notch of the jack is in
contact with the jack point.

The jack point guides are located under

the rocker panel. They indicate the jack

point positions.

Assemble the jack handle.

Raise the vehicle until the tire is
slightly raised off the ground.

Remove all the wheel nuts and the
tire.

When resting the tire on the ground, place

the tire so that the wheel design faces up to

avoid scratching the wheel surface.

WARNING

■

Replacing a flat tire

●

Do not touch the disc wheels or the

area around the brakes immediately

after the vehicle has been driven.

After the vehicle has been driven the

disc wheels and the area around the

brakes will be extremely hot. Touching

these areas with hands, feet or other

body parts while changing a tire, etc.

may result in burns.

380

7-2. Steps to take in an emergency

Remove any dirt or foreign matter
from the wheel contact surface.

If foreign matter is on the wheel contact

surface, the wheel nuts may loosen while

the vehicle is in motion, causing the tire to

come off.

Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount.

Tighten the wheel nuts until the tapered
portion

comes into loose contact with

the disc wheel seat

Lower the vehicle.

Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.

Tightening torque:

WARNING

●

Failure to follow these precautions

could cause the wheel nuts to loosen

and the tire to fall off, resulting in death

or serious injury.

• Never use oil or grease on the wheel

bolts or wheel nuts.

Oil and grease may cause the wheel

nuts to be excessively tightened, lead-

ing to bolt or disc wheel damage. In

addition, the oil or grease can cause

the wheel nuts to loosen and the wheel

may fall off, causing a serious accident.

Remove any oil or grease from the

wheel bolts or wheel nuts.

• Have the wheel nuts tightened with a

torque wrench to 76 ft•lbf (103 N•m,

10.5 kgf•m) as soon as possible after

changing wheels.

• When installing a tire, only use wheel

nuts that have been specifically

designed for that wheel.

• If there are any cracks or deformations

in the bolt screws, nut threads or bolt

holes of the wheel, have the vehicle

inspected by your Lexus dealer.

• Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

Installing the spare tire

381

7-2. Steps to take in an emergency

n t

ris

76 ft•lbf (103 N•m, 10.5 kgf•m)

Stow the flat tire, tire jack and all
tools.

■

The compact spare tire

●

The compact spare tire is identified by

the label “TEMPORARY USE ONLY”

on the tire sidewall.

Use the compact spare tire temporarily,

and only in an emergency.

●

Make sure to check the tire inflation

pressure of the compact spare tire.

(



P.403)

■

After completing the tire change

The tire pressure warning system must be

reset. (



P.331)

■

When using the compact spare tire

As the compact spare tire is not equipped

with a tire pressure warning valve and

transmitter, low inflation pressure of the

spare tire will not be indicated by the tire

pressure warning system. Also, if you

replace the compact spare tire after the tire

pressure warning light comes on, the light

remains on.

■

When the compact spare tire is

attached

The vehicle becomes lower when driving

with the compact spare tire compared to

when driving with standard tires.

■

If you have a flat front tire on a road cov-

ered with snow or ice (vehicles with 17-

inch tires)

Install the compact spare tire on one of the

rear wheels of the vehicle. Perform the fol-

lowing steps and fit tire chains to the front

tires:

Replace a rear tire with the compact

spare tire.

Replace the flat front tire with the tire

removed from the rear of the vehicle.

Fit tire chains to the front tires.

WARNING

■

When using the compact spare tire

●

Remember that the compact spare tire

provided is specifically designed for

use with your vehicle. Do not use your

compact spare tire on another vehicle.

●

Do not use more than one compact

spare tire simultaneously.

●

Replace the compact spare tire with a

standard tire as soon as possible.

●

Avoid sudden acceleration, abrupt

steering, sudden braking and shifting

operations that cause sudden engine

braking.

■

When the compact spare tire is

attached

The vehicle speed may not be correctly

detected, and the following systems may

not operate correctly:
• ABS & Brake assist
• VSC
• TRAC
• Dynamic radar cruise control with full-

speed range

• PCS (Pre-Collision System)
• EPS
• Adaptive Variable Suspension system

(if equipped)

• LTA (Lane Tracing Assist)
• Panoramic view monitor (if equipped)
• Lexus parking assist monitor

(if equipped)

• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
• BSM (Blind Spot Monitor)
• AHB (Automatic High Beam)

382

7-2. Steps to take in an emergency

One of the following may be the cause
of the problem:



The electronic key may not be func-
tioning properly. (



P.386)



There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. (



P.174)



There may be a malfunction in the
immobilizer system. (



P.67)



The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.



For vehicles sold in except Canada:
There is a possibility that the tem-
perature of the hybrid battery (trac-
tion battery) is extremely low
(approximately below -22°F [-
30°C]). (



P.63, 148)

WARNING

■

Speed limit when using the compact

spare tire

Do not drive at speeds in excess of 50

mph (80 km/h) when a compact spare

tire is installed on the vehicle.

The compact spare tire is not designed

for driving at high speeds. Failure to

observe this precaution may lead to an

accident causing death or serious injury.

■

After using the tools and jack

Before driving, make sure all the tools

and jack are securely in place in their

storage location to reduce the possibility

of personal injury during a collision or

sudden braking.

NOTICE

■

Be careful when driving over bumps

with the compact spare tire installed

on the vehicle

The vehicle becomes lower when driving

with the compact spare tire compared to

when driving with standard tires. Be

careful when driving over uneven road

surfaces.

■

Driving with tire chains and the com-

pact spare tire

Do not fit tire chains to the compact

spare tire.

Tire chains may damage the vehicle

body and adversely affect driving perfor-

mance.

■

When replacing the tires

When removing or fitting the wheels,

tires or the tire pressure warning valve

and transmitter, contact your Lexus

dealer as the tire pressure warning valve

and transmitter may be damaged if not

handled correctly.

If the hybrid system will not
start

Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:

The hybrid system will not start
even though the correct starting
procedure is being followed.
(



P.148)

383

7-2. Steps to take in an emergency

When trouble

ari

ses

One of the following may be the cause
of the problem:



The 12-volt battery may be dis-
charged. (



P.387)



The 12-volt battery terminal con-
nections may be loose or corroded.
(



P.326)

One of the following may be the cause
of the problem:



The 12-volt battery may be dis-
charged. (



P.387)



One or both of the 12-volt battery
terminals may be disconnected.
(



P.326)

Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.

When the hybrid system does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure
except in cases of emergency.

Press the parking brake switch to
check that the parking brake is set.
(



P.159)

Parking brake indicator will come on.

Shift the shift lever to P.

Turn the power switch to ACCES-
SORY mode.

Press and hold the power switch for
about 15 seconds while depressing
the brake pedal firmly.

Even if the hybrid system can be
started using the above steps, the sys-
tem may be malfunctioning. Have the
vehicle inspected by your Lexus
dealer.

The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

The interior lights and head-
lights do not turn on, or the horn
does not sound.

Starting the hybrid system in an
emergency

384

7-2. Steps to take in an emergency

Remove the cover inside the trunk and
pull the lever.

If you lose your keys

New genuine mechanical keys can
be made by your Lexus dealer using
another mechanical key and the
key number stamped on your key
number plate. Keep the plate in a
safe place such as your wallet, not in
the vehicle.

NOTICE

■

When an electronic key is lost

If the electronic key remains lost, the risk

of vehicle theft increases significantly.

Visit your Lexus dealer immediately with

all remaining electronic keys and the

card key (if equipped) that were pro-

vided with your vehicle.

If the fuel filler door cannot
be opened

If the fuel filler door opener switch
cannot be operated, contact your
Lexus dealer to service the vehicle.
In case where refueling is urgently
necessary, the following proce-
dure can be used to open the fuel
filler door.

Opening the fuel filler door

NOTICE

■

When opening the fuel filler door

manually

●

Do not open the fuel filler door manu-

ally except in an emergency. Fuel may

overflow.

●

Using the lever to open the fuel filler

door may not allow for an adequate

reduction in fuel tank pressure before

refueling. To prevent fuel from spilling

out, turn the cap slowly when remov-

ing it.

●

During refueling, fuel may spill out

from the filler opening due to air being

discharged from inside the fuel tank.

Therefore, fill the fuel tank carefully

and slowly.

385

7-2. Steps to take in an emergency

n t

ris

■

When the electronic key does not work

properly

●

Make sure that the smart access system

with push-button start has not been deac-

tivated in the customization setting. If it is

off, turn the function on. (Customizable

features:



P.420)

●

Check if battery-saving mode is set. If it is

set, cancel the function. (



P.117)

●

The electronic key function may have

stopped. (



P.117)

Use the mechanical key (



P.102) in

order to perform the following opera-

tions:

■

Unlocking the door

Pull the driver’s door handle and
insert the mechanical key.

Unlock the door.

Remove the key, return the handle,
and then pull the handle again.

■

Locking the door

With the door open, push down the
inside lock button.

Close the door.

If the electronic key does not
operate properly

If communication between the
electronic key and vehicle is inter-
rupted (



P.117) or the electronic

key cannot be used because the
battery is depleted, the smart
access system with push-button
start and wireless remote control
cannot be used. In such cases, the
doors and trunk can be opened and
the hybrid system can be started by
following the procedure below.

NOTICE

■

In case of a smart access system with

push-button start malfunction or

other key-related problems

Take your vehicle with all the electronic

keys provided with your vehicle (includ-

ing the card key) to your Lexus dealer as

soon as possible.

Locking and unlocking the
doors, opening the trunk and
using the key linked functions

386

7-2. Steps to take in an emergency

■

Opening the trunk

Turn the mechanical key clockwise to
open.

■

Key linked functions

Closes the windows and the moon roof
(turn and hold)

Opens the windows and the moon roof
(turn and hold)

These settings must be customized at your

Lexus dealer.

Ensure that the shift lever is in P and
depress the brake pedal.

Touch the Lexus emblem side of
the electronic key to the power
switch.

When the electronic key is detected, a

buzzer sounds and the power switch will

turn to ON mode.
When the smart access system with push-

button start is deactivated in customization

setting, the power switch will turn to

ACCESSORY mode.

Firmly depress the brake pedal and

check that

is shown on the

multi-information display.

Press the power switch shortly and
firmly.

In the event that the hybrid system still
cannot be started, contact your Lexus
dealer.

■

Stopping the hybrid system

Set the parking brake, shift the shift lever to

P and press the power switch as you nor-

mally do when stopping the hybrid system.

■

Electronic key battery

As the above procedure is a temporary

measure, it is recommended that the elec-

tronic key battery be replaced immediately

when the battery is depleted. (



P.343)

WARNING

■

When using the mechanical key and

operating the power windows or

moon roof

Operate the power window after check-

ing to make sure that there is no possibil-

ity of any passenger having any of their

body parts caught in the window or

moon roof.

Also, do not allow children to operate the

mechanical key. It is possible for children

and other passengers to get caught in

the power window or moon roof.

Starting the hybrid system

387

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Alarm (for Canada)

Using the mechanical key to lock the doors

will not set the alarm system.
If a door is unlocked using the mechanical

key when the alarm system is set, the alarm

may be triggered.

■

Changing power switch modes

Release the brake pedal and press the

power switch in step

above.

The hybrid system does not start and modes

will be changed each time the switch is

pressed. (



P.151)

If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle using the following procedure.

Confirm that the electronic key is
being carried.

When connecting the jumper (or booster)

cables, depending on the situation, the

alarm may activate and doors locked.

(

Open the hood (

open the fuse box cover.

If the 12-volt battery is dis-
charged

The following procedures may be
used to start the hybrid system if the
12-volt battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.

Restarting the hybrid system

388

7-2. Steps to take in an emergency

Push the tab in and lift the lid off.

Open the exclusive jump starting
terminal cover.

Connect a positive jumper cable clamp to

on your vehicle and connect the

clamp on the other end of the positive cable to

on the second vehicle.

Then, connect a negative cable clamp to

on the second vehicle and con-

nect the clamp at the other end of the negative cable to

Use jumper cables that can reach the specified terminals and connecting point.

Exclusive jump starting terminal (your vehicle)

Positive (+) battery terminal (second vehicle)

Negative (-) battery terminal (second vehicle)

Metallic point shown in the illustration

Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to

recharge the 12-volt battery of your
vehicle.

Maintain the engine speed of the
second vehicle and start the hybrid

A
B
C
D

389

7-2. Steps to take in an emergency

When trouble

ari

ses

system of your vehicle by turning
the power switch to ON mode.

Make sure the “READY” indicator
comes on. If the indicator does not
come on, contact your Lexus
dealer.

Once the vehicle’s hybrid system
has started, remove the jumper
cables in the exact reverse order
from which they were connected.

Close the exclusive jump starting
terminal cover, and reinstall the
fuse box cover to its original posi-
tion.

Once the hybrid system starts, have the

vehicle inspected at your Lexus dealer as

soon as possible.

■

Starting the hybrid system when the 12-

volt battery is discharged

The hybrid system cannot be started by

push-starting.

■

To prevent 12-volt battery discharge

●

Turn off the headlights and the audio sys-

tem while the hybrid system is stopped.

●

Turn off any unnecessary electrical com-

ponents when the vehicle is running at a

low speed for an extended period, such

as in heavy traffic.

■

When the 12-volt battery is removed or

discharged

●

Information stored in the ECU is cleared.

When the 12-volt battery is depleted,

have the vehicle inspected at your Lexus

dealer.

●

Some systems may require initialization.

(



P.429)

■

When removing the 12-volt battery ter-

minals

When the 12-volt battery terminals are

removed, the information stored in the

ECU is cleared. Before removing the 12-

volt battery terminals, contact your Lexus

dealer.

■

Charging the 12-volt battery

The electricity stored in the 12-volt battery

will discharge gradually even when the

vehicle is not in use, due to natural dis-

charge and the draining effects of certain

electrical appliances. If the vehicle is left for

a long time, the 12-volt battery may dis-

charge, and the hybrid system may be

unable to start. (The 12-volt battery

recharges automatically while the hybrid

system is operating.)

■

When recharging or replacing the 12-

volt battery

●

In some cases, it may not be possible to

unlock the doors using the smart access

system with push-button start when the

12-volt battery is discharged. Use the

wireless remote control or the mechani-

cal key to lock or unlock the doors.

●

The hybrid system may not start on the

first attempt after the 12-volt battery has

recharged but will start normally after the

second attempt. This is not a malfunction.

●

The power switch mode is memorized by

the vehicle. When the 12-volt battery is

reconnected, the system will return to the

mode it was in before the 12-volt battery

was discharged. Before disconnecting

the 12-volt battery, turn the power switch

off.

If you are unsure what mode the power

switch was in before the 12-volt battery

discharged, be especially careful when

reconnecting the 12-volt battery.

■

When replacing the 12-volt battery

●

Use a 12-volt battery that conforms to

European regulations.

●

Use a 12-volt battery that the case size is

same as the previous one (LN2), 20 hour

rate capacity (20HR) is equivalent

(60Ah) or greater, and performance rat-

ing (CCA) is equivalent (563A) or

greater.

• If the sizes differ, the 12-volt battery can-

not be properly secured.

• If the 20 hour rate capacity is low, even if

the time period where the vehicle is not

used is a short time, the 12-volt battery

may discharge and hybrid system may

390

7-2. Steps to take in an emergency

not be able to start.

●

Use a 12-volt battery with a handle. If a

12-volt battery without a handle is used,

removal is more difficult.

●

After exchanging, firmly attach the fol-

lowing items to the exhaust hole of the

12-volt battery.

• Use the exhaust hose that was attached

to the 12-volt battery before exchanging.

• Use the exhaust hole plug included with

the new 12-volt battery or the one

installed on the battery prior to the

replacement. (Depending on the new 12-

volt battery installed, the exhaust hole

may be plugged.)

Exhaust hole plug

Exhaust hole

Exhaust hose

For details, consult your Lexus dealer.

WARNING

■

When removing the 12-volt battery

terminals

Always remove the negative (-) terminal

first. If the positive (+) terminal contacts

any metal in the surrounding area when

the positive (+) terminal is removed, a

spark may occur, leading to a fire in addi-

tion to electrical shocks and death or

serious injury.

■

Avoiding 12-volt battery fires or

explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the 12-

volt battery:

●

Make sure each jumper cable is con-

nected to the correct terminal and that

it is not unintentionally in contact with

any other than the intended terminal.

●

Do not allow the other end of the

jumper cable connected to the “+” ter-

minal to come into contact with any

other parts or metal surfaces in the

area, such as brackets or unpainted

metal.

●

Do not allow the + and - clamps of the

jumper cables to come into contact

with each other.

●

Do not smoke, use matches, cigarette

lighters or allow open flame near the

12-volt battery.

■

12-volt battery precautions

The 12-volt battery contains poisonous

and corrosive acidic electrolyte, while

related parts contain lead and lead com-

pounds. Observe the following precau-

tions when handling the 12-volt battery:

●

When working with the 12-volt battery,

always wear safety glasses and take

care not to allow any battery fluids

(acid) to come into contact with skin,

clothing or the vehicle body.

●

Do not lean over the 12-volt battery.

●

In the event that battery fluid comes

into contact with the skin or eyes,

immediately wash the affected area

with water and seek medical attention.

Place a wet sponge or cloth over the

affected area until medical attention

can be received.

●

Always wash your hands after han-

dling the 12-volt battery support, ter-

minals, and other battery-related

parts.

391

7-2. Steps to take in an emergency

n t

ris



If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop in
a Safe Place See Owner’s Manual”
is shown on the multi-information
display

Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the hybrid system.

If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.

After the hybrid system has cooled
down sufficiently, inspect the hoses
and cooling system for leaks.

WARNING

●

Do not allow children near the 12-volt

battery.

■

After recharging the 12-volt battery

Have the 12-volt battery inspected at

your Lexus dealer as soon as possible. If

the 12-volt battery is deteriorating, con-

tinued use may cause the 12-volt battery

to emit a malodorous gas, which may be

detrimental to the health of passengers.

■

When exchanging the 12-volt battery

After replacing, securely attach the

exhaust hose and exhaust hole plug to

the exhaust hole of the replaced 12-volt

battery. If not properly installed, gases

(hydrogen) may leak into the vehicle

interior, and there is the possible danger

of the gas igniting and exploding.

NOTICE

■

When handling jumper cables

When connecting the jumper cables,

ensure that they do not become entan-

gled in the cooling fan or engine drive

belt.

■

When connecting jumper cables

Make sure to connect jumper cables to

the specified terminals and connecting

point. Failure to do so may adversely

affect the electronic devices or damage

to them.

■

To prevent damaging the vehicle

The exclusive jump starting terminal is to

be used when charging the 12-volt bat-

tery from another vehicle in an emer-

gency. It cannot be used to jump start

another vehicle.

If your vehicle overheats

The following may indicate that
your vehicle is overheating.



The engine coolant temperature
gauge (



P.76, 80) is in the red

zone or a loss of hybrid system
power is experienced. (For exam-
ple, the vehicle speed does not
increase.)



“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” or “Hybrid system over-
heated Output power reduced” is
shown on the multi-information
display.



Steam comes out from under the
hood.

Correction procedures

392

7-2. Steps to take in an emergency

If a large amount of coolant leaks, immedi-

ately contact your Lexus dealer.

Radiator

Cooling fan

The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.

Reservoir

“F” line

“L” line

Coolant inlet cap

Add coolant if necessary.

Water can be used in an emergency if

engine coolant is unavailable.
If water was added in an emergency, have

the vehicle inspected at your Lexus dealer

as soon as possible.

Start the hybrid system and turn the
air conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.

The fan operates when the air conditioning

system is turned on immediately after a

cold start. Confirm that the fan is operating

by checking the fan sound and air flow. If it

is difficult to check these, turn the air con-

ditioning system on and off repeatedly.

(The fan may not operate in freezing tem-

peratures.)

If the fan is not operating:
Stop the hybrid system immediately
and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.



If “Hybrid system overheated Out-
put power reduced” is shown on the
multi-information display

Stop the vehicle in a safe place.

Stop the hybrid system and care-
fully lift the hood.

A
B

A
B
C
D

393

7-2. Steps to take in an emergency

n t

ris

After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiator) for any leaks.

Radiator

Cooling fan

If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.

The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir.

Reservoir

“FULL” line

“LOW” line

Add coolant if necessary.

Water can be used in an emergency if

power control unit coolant is unavailable.
If water was added in an emergency, have

the vehicle inspected at your Lexus dealer

as soon as possible.

After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check if “Hybrid system over-
heated Output power reduced” is
shown on the multi-information dis-
play.

If the message does not disappear:

Stop the hybrid system and contact your

Lexus dealer.
If the message is not displayed:

The hybrid system temperature has

dropped and the vehicle may be driven

normally.
However, if the message appears again

frequently, contact your Lexus dealer.

WARNING

■

When inspecting under the hood of

your vehicle

Observe the following precautions.

Failure to do so may result in serious

injury such as burns.

●

If steam is seen coming from under the

hood, do not open the hood until the

steam has subsided. The engine com-

partment may be very hot.

394

7-2. Steps to take in an emergency

Stop the hybrid system. Set the
parking brake and shift the shift
lever to P.

Remove the mud, snow or sand
from around the front wheels.

Place wood, stones or some other
material under the front wheels to
help provide traction.

Restart the hybrid system.

Shift the shift lever to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.

■

When it is difficult to free the vehicle

Press the

switch to turn off TRAC.

WARNING

●

After the hybrid system has been

turned off, check that the “READY”

indicator are off.

When the hybrid system is operating,

the gasoline engine may automatically

start, or the cooling fan may suddenly

operate even if the gasoline engine

stops. Do not touch or approach rotat-

ing parts such as the fan, which may

lead to fingers or clothing (especially a

tie, a scarf or a muffler) getting caught,

resulting in serious injury.

●

Do not loosen the coolant inlet cap or

coolant reservoir caps while the hybrid

system and radiator are hot.

High temperature steam or coolant

could spray out.

NOTICE

■

When adding engine/power control

unit coolant

Add coolant slowly after the hybrid sys-

tem has cooled down sufficiently. Adding

cool coolant to a hot hybrid system too

quickly can cause damage to the hybrid

system.

■

To prevent damage to the cooling

system

Observe the following precautions:

●

Avoid contaminating the coolant with

foreign matter (such as sand or dust

etc.).

●

Do not use any coolant additive.

If the vehicle becomes stuck

Carry out the following procedures
if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:

Recovering procedure

395

7-2. Steps to take in an emergency

n t

ris

WARNING

■

When attempting to free a stuck vehi-

cle

If you choose to push the vehicle back

and forth to free it, make sure the sur-

rounding area is clear to avoid striking

other vehicles, objects or people. The

vehicle may also lunge forward or lunge

back suddenly as it becomes free. Use

extreme caution.

■

When shifting the shift lever

Be careful not to shift the shift lever with

the accelerator pedal depressed.

This may lead to unexpected rapid accel-

eration of the vehicle that may cause an

accident resulting in death or serious

injury.

NOTICE

■

To avoid damaging the transmission

and other components

●

Avoid spinning the front wheels and

depressing the accelerator pedal

more than necessary.

●

If the vehicle remains stuck even after

these procedures are performed, the

vehicle may require towing to be

freed.

398

8-1. Specifications

8-1.Specifications

: Unladen vehicle

■

Vehicle identification number

The vehicle identification number
(VIN) is the legal identifier for your
vehicle. This is the primary identifica-
tion number for your Lexus. It is used in
registering the ownership of your vehi-
cle.
This number is on the top left of the
instrument panel.

This number is also on the Certification
Label.

Maintenance data (fuel, oil level, etc.)

Dimensions and weight

Overall length

195.9 in. (4975 mm)

Overall width

73.4 in. (1865 mm)

Overall height

56.9 in. (1445 mm)

Wheelbase

113.0 in. (2870 mm)

Front tread

With 17-inch tires

63.0 in. (1599 mm)

With 18-inch tires/19-inch tires

62.6 in. (1589 mm)

Rear tread

With 17-inch tires

63.3 in. (1609 mm)

With 18-inch tires/19-inch tires

63.0 in. (1600 mm)

Vehicle capacity weight (Occupants + luggage)

905 lb. (410 kg)

Seating capacity

5 (Front 2, Rear 3)

Vehicle identification

399

8-1. Specifications

Vehi

cle

spec

ifi

tions

■

Engine number

The engine number is located as

shown.

Engine

Model

2.5 L 4-cylinder (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

Fuel

Fuel type

Unleaded gasoline only

Octane Rating

87 (Research Octane Number 91) or
higher

Fuel tank capacity (Reference)

13.0 gal. (49.3 L, 10.8 Imp.gal.)

Electric motor (traction motor)

Type

Permanent magnet synchronous motor

Maximum output

88 kW

Maximum torque

149 ft•lbf (202 N•m, 20.6 kgf•m)

400

8-1. Specifications



Except for Canada



For Canada

■

Oil capacity (Drain and refill [Ref-
erence

])

: 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
between the low level mark and refill
upper limit mark (



P.320). 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

“Toyota Genuine Motor Oil” is used in
your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor

Oil” or equivalent to satisfy the follow-
ing 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.

Hybrid battery (traction battery)

Type

Lithium-ion battery

Voltage

3.7 V/cell

Capacity

4.0 Ah

Quantity

70 cells

Nominal voltage

259 V

Type

Nickel-metal hydride battery

Voltage

7.2 V/module

Capacity

6.5 Ah (3HR)

Quantity

34 modules

Nominal voltage

244.8 V

Lubrication system

With filter

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

Without filter 4.4 qt. (4.2 L, 3.7 Imp. qt.)

401

8-1. Specifications

Vehi

cle

spec

ifi

tions

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 mark is added to some
oil containers to help you select the oil
you should use.

: The fluid capacity is a reference quantity.

If replacement is necessary, contact your Lexus dealer.

Cooling system

Capacity

Gasoline engine

6.4 qt. (6.1 L, 5.4 Imp.qt.)

Power control unit

1.9 qt. (1.8 L, 1.6 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.

402

8-1. Specifications

■

Spark plug

: 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 (12-volt battery)

Open voltage at 68°F (20°C):

12.3 V or higher
(Turn the power switch off and turn on the
high beam headlights for 30 seconds.)
If the voltage is lower than the standard
value, charge the battery.

Charging rates

5 A max.

Hybrid transmission

Fluid capacity

4.1 qt. (3.9 L, 3.4 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.

Brakes

Pedal clearance

3.3 in. (85 mm) Min.

Pedal free play

0.04



0.24 in. (1.0



6.0 mm)

Brake pad wear limit

0.04 in. (1.0 mm)

403

8-1. Specifications

Vehi

cle

spec

ifi

tions

: Minimum pedal clearance when depressed with a force of 67.4 lbf (300 N, 30.6 kgf)

while the hybrid system is operating.
When performing the brake pedal inspection, also be sure to check that the brake sys-
tem warning light is not illuminated when the hybrid system is operating. (If the brake
system warning light is illuminated, refer to P.360.)

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

the brake system warning light illuminates, refer to P.360.)



Type A

: 100 mph (160 km/h) or less

: More than 100 mph (160 km/h)

Parking brake indicator

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

Fluid type

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

Steering

Free play

Less than 1.2 in. (30 mm)

Tires and wheels

Tire size

215/55R17 94V, T155/70D17 110M
(spare)

Tire inflation pressure
(Recommended cold tire inflation pressure)

Front

36 psi (250 kPa, 2.5 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Rear

36 psi (250 kPa, 2.5 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Wheel size

17 x 7 1/2J, 17 x 4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

404

8-1. Specifications



Type B

: 100 mph (160 km/h) or less

: More than 100 mph (160 km/h)



Type C

: 137 mph (220 km/h) or less

: More than 137 mph (220 km/h)

Tire size

235/45R18 94V, T155/70D17 110M
(spare)

Tire inflation pressure
(Recommended cold tire inflation pressure)

Front

35 psi (240 kPa, 2.4 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Rear

35 psi (240 kPa, 2.4 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Wheel size

18 x 8J, 17 x 4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Tire size

235/40R19 92V, T155/70D17 110M
(spare)

Tire inflation pressure
(Recommended cold tire inflation pressure)

Front

35 psi (240 kPa, 2.4 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Rear

35 psi (240 kPa, 2.4 kgf/cm

or bar)

46 psi (320 kPa, 3.2 kgf/cm

or bar)

Spare

60 psi (420 kPa, 4.2 kgf/cm

or bar)

Wheel size

19 x 8J, 17 x 4T (spare)

Wheel nut torque

76 ft•lbf (103 N•m, 10.5 kgf•m)

Lexus ES300H (2023 year). Manual in english - page 12