Lexus ES250 (2023 year). Manual in english - page 22

364

7-2. Steps to take in an emergency

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 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

365

7-2. Steps to take in an emergency

n t

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

Remove the jack.



Type A



Type B

Remove the auxiliary box.



Type A



Type B

Loosen the center fastener that
secures the spare tire.

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.

366

7-2. Steps to take in an emergency

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

367

7-2. Steps to take in an emergency

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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.

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

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

368

7-2. Steps to take in an emergency

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

pressure of the compact spare tire.

(



P.391)

■

After completing the tire change

The tire pressure warning system must be

reset. (



P.321)

■

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

369

7-2. Steps to take in an emergency

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WARNING

• 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)

Also, not only can the following system

not be utilized fully, but it may even nega-

tively affect the drive-train components:
• AWD system (if equipped)

■

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.

370

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.374)



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



P.167)



The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
(



P.142)



There may be a malfunction in the
engine immobilizer system.
(



P.59)

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



The battery may be discharged.
(



P.375)



The battery terminal connections

may be loose or corroded.

The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine.

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



One or both of the battery terminals
may be disconnected.



The battery may be discharged.
(



P.375)

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

When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:

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



P.151)

Parking brake indicator will come on.

If the engine will not start

If the engine will not start even
though correct starting procedures
are being followed (



P.142), con-

sider each of the following points:

The engine will not start even
though the starter motor oper-
ates normally.

The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.

The starter motor does not turn
over

The starter motor does not turn
over, the interior lights and
headlights do not turn on, or the
horn does not sound.

Starting the engine in an emer-
gency

371

7-2. Steps to take in an emergency

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Shift the shift lever to P.

Turn the engine switch to ACCES-
SORY mode.

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

Even if the engine can be started using
the above steps, the system 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 and the

card key (if equipped) that were pro-

vided with your vehicle.

372

7-2. Steps to take in an emergency

Remove the cover inside the trunk and
pull the lever.

■

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.407)

●

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

set, cancel the function. (



P.107)

●

The electronic key function may have

stopped. (



P.107)

Use the mechanical key (



P.92) in

order to perform the following opera-

If the fuel filler door cannot
be opened

If the fuel filler door opener switch
cannot be operated, 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.107) 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 engine can be started by follow-
ing 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

373

7-2. Steps to take in an emergency

When trouble

ari

ses

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.

■

Opening the trunk

Turn the mechanical key clockwise to
open.

■

Key linked functions

Closes the windows and the moon roof

or panoramic moon roof

(turn and

hold)

Opens the windows and the moon roof

or panoramic moon roof

(turn and

hold)

These settings must be customized at your

Lexus dealer.

: If equipped

374

7-2. Steps to take in an emergency

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

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

When the electronic key is detected, a

buzzer sounds and the engine switch will

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

button start is deactivated in customization

setting, the engine switch will turn to

ACCESSORY mode.

Firmly depress the brake pedal and

check that

is shown on the

multi-information display.

Press the engine switch shortly and
firmly.

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

■

Stopping the engine

Set the parking brake, shift the shift lever to

P and press the engine switch as you nor-

mally do when stopping the engine.

■

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.330)

■

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 engine switch modes

Release the brake pedal and press the

engine switch in step

above.

The engine does not start and modes will be

changed each time the switch is pressed.

(



P.144)

WARNING

■

When using the mechanical key and

operating the power windows or

moon roof (if equipped) or panoramic

moon roof (if equipped)

Operate the power window, moon roof

or panoramic moon roof after checking

to make sure that there is no possibility of

any passenger having any of their body

parts caught in the window, moon roof or

panoramic 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, moon roof or pan-

oramic moon roof.

Starting the engine

375

7-2. Steps to take in an emergency

When trouble

ari

ses

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. (

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



2GR-FKS engine

Positive (+) battery terminal (your vehicle)

Positive (+) battery terminal (second vehicle)

Negative (-) battery terminal (second vehicle)

Solid, stationary, unpainted metallic point away from the battery and any mov-

If the battery is discharged

The following procedures may be
used to start the engine if the bat-
tery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.

Restarting the engine

A
B
C
D

376

7-2. Steps to take in an emergency

ing parts as shown in the illustration



A25A-FKS engine

Positive (+) battery terminal (your vehicle)

Positive (+) battery terminal (second vehicle)

Negative (-) battery terminal (second vehicle)

Solid, stationary, unpainted metallic point away from the battery and any mov-
ing 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 battery of your vehi-
cle.

Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode.

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

Once the engine starts, have the vehicle

inspected at your Lexus dealer as soon as

possible.

■

Starting the engine when the battery is

discharged

The engine cannot be started by push-start-

ing.

■

To prevent battery discharge

●

Turn off the headlights and the audio sys-

tem while the engine 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 battery is removed or dis-

charged

●

Information stored in the ECU is cleared.

When the battery is depleted, have the

vehicle inspected at your Lexus dealer.

●

Some systems may require initialization.

(



P.415)

■

When removing the battery terminals

When the battery terminals are removed,

A
B
C
D

377

7-2. Steps to take in an emergency

n t

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the information stored in the ECU is

cleared. Before removing the battery termi-

nals, contact your Lexus dealer.

■

Charging the battery

The electricity stored in the battery will dis-

charge gradually even when the vehicle is

not in use, due to natural discharge and the

draining effects of certain electrical appli-

ances. If the vehicle is left for a long time,

the battery may discharge, and the engine

may be unable to start. (The battery

recharges automatically during driving.)

■

When recharging or replacing the bat-

tery

●

In some cases, it may not be possible to

unlock the doors using the smart access

system with push-button start when the

battery is discharged. Use the wireless

remote control or the mechanical key to

lock or unlock the doors.

●

The engine may not start on the first

attempt after the battery has recharged

but will start normally after the second

attempt. This is not a malfunction.

●

The engine switch mode is memorized by

the vehicle. When the battery is recon-

nected, the system will return to the

mode it was in before the battery was dis-

charged. Before disconnecting the bat-

tery, turn the engine switch off.

If you are unsure what mode the engine

switch was in before the battery dis-

charged, be especially careful when

reconnecting the battery.

■

When replacing the battery

●

Use a battery that conforms to European

regulations.

●

Use a battery that the case size is same as

the previous one (LN3), 20 hour rate

capacity (20HR) is equivalent (70Ah) or

greater, and performance rating (CCA)

is equivalent (592A) or greater.

• If the sizes differ, the battery cannot 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 battery may dis-

charge and engine may not be able to

start.

●

For details, consult your Lexus dealer.

WARNING

■

When removing the battery termi-

nals

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 battery fires or explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the bat-

tery:

●

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

battery.

■

Battery precautions

The battery contains poisonous and cor-

rosive acidic electrolyte, while related

parts contain lead and lead compounds.

Observe the following precautions when

handling the battery:

●

When working with the 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 battery.

378

7-2. Steps to take in an emergency

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

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

After the engine has cooled down
sufficiently, inspect the hoses and

WARNING

●

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 battery support, terminals,

and other battery-related parts.

●

Do not allow children near the battery.

■

When replacing the battery

When the vent plug and indicator are

close to the hold down clamp, the battery

fluid (sulfuric acid) may leak.

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.

If your vehicle overheats

The following may indicate that
your vehicle is overheating.



The engine coolant temperature
gauge (



P.68, 71) is in the red

zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)



“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display.



Steam comes out from under the
hood.

Correction procedures

379

7-2. Steps to take in an emergency

When trouble

ari

ses

radiator 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 “F” and “L” lines on
the reservoir.



2GR-FKS engine

Reservoir

“F” line

“L” line

Coolant inlet cap



A25A-FKS engine

Reservoir

“F” line

“L” line

Coolant inlet cap

Add coolant if necessary.



2GR-FKS engine

Water can be used in an emergency if
coolant is unavailable.



A25A-FKS engine

Water can be used in an emergency if
coolant is unavailable.

A
B

A
B
C
D

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