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LEXUS ES 300H (2019 year). Instruction - part 24

374

7-2. Steps to take in an emergency

Open the trunk.

Pull the lever upwards when lifting
the luggage mat up.

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.

WARNING

●

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

Taking out the jack

NOTICE

■

To prevent damage to luggage mat

When closing the trunk door, 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.

375

7-2. Steps to take in an emergency

When trouble

ari

ses

Chock the tires.

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

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

376

7-2. Steps to take in an emergency

avoid scratching the wheel surface.

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.

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.

●

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

377

7-2. Steps to take in an emergency

When trouble

ari

ses

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:

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 pres-

sure of the compact spare tire. (

P.399)

■

After completing the tire change

The tire pressure warning system must be

reset. (

P.330)

■

When using the compact spare tire

As the compact spare tire is not equipped

with a tire pressure warning valve and trans-

mitter, 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

equipped

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

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.

378

7-2. Steps to take in an emergency

WARNING

●

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
• 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)

(if equipped)

• Automatic high Beam

■

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.

379

7-2. Steps to take in an emergency

When trouble

ari

ses

One of the following may be the cause
of the problem:
 The electronic key may not be func-

tioning properly. (

P.383)

 There may not be sufficient fuel in

the vehicle’s tank.
Refuel the vehicle. (

P.161)

 There may be a malfunction in the

immobilizer system. (

P.60)

 There may be a malfunction in the

steering lock system.

 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.

One of the following may be the cause

of the problem:
 The 12-volt battery may be dis-

charged. (

P.384)

 The 12-volt battery terminal con-

nections may be loose or corroded.
(

P.325)

One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-

charged. (

P.384)

 One or both of the 12-volt battery

terminals may be disconnected.
(

P.325)

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.146)

Parking brake indicator will come on.

Shift the shift lever to P.

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.135)

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

380

7-2. Steps to take in an emergency

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.

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 that were

provided with your vehicle.

381

7-2. Steps to take in an emergency

When trouble

ari

ses

Remove the cover inside the trunk and
pull the lever.

Using the lever to open the fuel filler door
may not allow for an adequate reduction in
fuel tank pressure before refueling. To pre-
vent fuel from spilling out, turn the cap
slowly when removing 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 care-
fully and slowly.

■

When the electronic key does not work

properly

●

Make sure that the smart access system

with push-button start has not been deac-

tivated using the Remote Touch or at your

Lexus dealer. If it is off, turn the function

on.

●

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

set, cancel the function. (

P.103)

Use the mechanical key (

P.90) in

order to perform the following opera-
tions:

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 procedure
can be used to open the fuel filler
door.

Opening the fuel filler door

If the electronic key does not
operate properly

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

P.103) 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 to your

Lexus dealer as soon as possible.

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

382

7-2. Steps to take in an emergency

■

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.

■

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.

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.

383

7-2. Steps to take in an emergency

When trouble

ari

ses

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.339)

■

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.137)

Starting the hybrid system

384

7-2. Steps to take in an emergency

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.

(

P.63)

Open the hood (

P.316) and

open the fuse box cover.

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.

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

385

7-2. Steps to take in an emergency

When trouble

ari

ses

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

Exclusive jump starting terminal (your vehicle)

Positive (+) battery terminal (second vehicle)

Negative (-) battery terminal (second vehicle)

Solid, stationary, unpainted metallic point away from the exclusive jump starting
terminal and any moving parts as 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.

Open and close any of the doors of
your vehicle with the power switch
off.

Maintain the engine speed of the
second vehicle and start the hybrid
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 tits original position.

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-

A
B
C
D

386

7-2. Steps to take in an emergency

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.423)

■

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 (345A) or

greater.

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

not be properly secured.

• 12-volt battery performance may

decrease and the hybrid system may not

be able to start.

• 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

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 12-volt battery exchanged or the one

installed on the battery prior to the

exchange. (Depending on the 12-volt

battery to be exchanged, the exhaust

hole may be plugged.)

387

7-2. Steps to take in an emergency

When trouble

ari

ses

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 12-volt 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 12-volt 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 handling

the 12-volt battery support, terminals,

and other battery-related parts.

●

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.

388

7-2. Steps to take in an emergency



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.

WARNING

■

When exchanging the 12-volt battery

●

When the vent plug and indicator are

close to the hold down clamp, the bat-

tery fluid (sulfuric acid) may leak.

●

After exchanging, securely attach the

exhaust hose and exhaust hole plug to

the exhaust hole of the exchanged 12-

volt battery. If not properly installed,

gases (hydrogen) may leak into the

vehicle interior, and there is the possi-

ble 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.

■

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.70) is in the red zone

or a loss of hybrid system power is
experienced. (For example, 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

389

7-2. Steps to take in an emergency

When trouble

ari

ses

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

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

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