Content .. 19 20 21 22 ..

Lexus IS350 (2022 year). Manual in english - page 21

345

7-2. Steps to take in an emergency

n t

ris

Turn the guide pin clockwise to tighten it

until it stops.

Remove all the wheel bolts 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.

Remove any dirt or foreign matter
from the wheel contact surfaces
and wheel bolts.

If foreign matter is on the wheel contact

surface, the wheel bolts may loosen while

the vehicle is in motion, causing the tire to

come off.

Align a wheel bolt hole on the spare
tire with the guide pin, and set the
spare tire on the guide pin.

Securely set the spare tire so that its wheel

is touching the contact surface.

Loosely tighten each wheel bolt by
hand or using a wheel bolt socket

Push the spare tire to prevent it from falling.
Do not use the wheel bolt socket for any-

thing other than loosely tightening the

wheel bolts by hand.

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.

Installing the spare tire

346

7-2. Steps to take in an emergency

Remove the guide pin and loosely
tighten the wheel bolt as in step

Lower the vehicle.

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

Tightening torque:

103 ft•lbf (140 N•m, 14.3 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.372)

■

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 rear tire on a road cov-

ered with snow or ice (vehicles with

front and rear tires of the same size)

Install the compact spare tire on one of the

front wheels of the vehicle. Perform the fol-

lowing steps and fit tire chains to the rear

tires:

Replace a front tire with the compact

spare tire.

Replace the flat rear tire with the tire

removed from the front of the vehicle.

Fit tire chains to the rear tires.

WARNING

■

Installing the compact spare tire

Failure to follow these precautions could

cause the wheel bolts to loosen and the

tire to fall off, resulting in death or serious

injury.

347

7-2. Steps to take in an emergency

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WARNING

●

Never apply oil or grease to the wheel

bolts or their contact surface on the

wheel .

Doing so may cause the wheel bolts to

be tightened excessively, leading to

damage to the wheel bolts, the

threaded portion the wheel bolts install

, or the wheel.

Also, the wheel bolts may come loose,

possibly leading to the wheel coming

off, causing a serious accident.

If oil or grease is attached to either of

these parts, remove it.



Steel wheel



Aluminum wheel

●

When installing a wheel, use the same

wheel bolts that were removed with

the wheel. Also, do not use any wheel

bolts other than Lexus Genuine wheel

bolts.

●

Do not attach a heavily damaged

wheel ornament, as it may fly off the

wheel while the vehicle is moving.

●

If a wheel bolt hole in a wheel or the

threads of a wheel bolt or the wheel

hub are deformed, cracked, rusty or

otherwise damaged, have the vehicle

inspected by your Lexus dealer.

■

When tightening the wheel bolts

Do not tighten the wheel bolts exces-

sively. Doing so may cause the wheel

bolts, the threads of the wheel hub, or the

wheel to be damaged.

■

Guide pin

When removing or installing a tire, make

sure to use the guide pin.

Also, the guide pin is made of resin. It

may be damaged if the wheel is placed

anywhere other than

or if a large

amount of force is applied to the guide

pin.

■

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 tires 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

348

7-2. Steps to take in an emergency

WARNING

• Dynamic radar cruise control with

full-speed range

• PCS

• EPS

• Tire pressure warning system

• Adaptive Variable Suspension System

(if equipped)

• LTA (Lane Tracing Assist)

• Lexus parking assist monitor (if

equipped)

• Panoramic view monitor (if equipped)

• Intuitive parking assist (if equipped)

• PKSB (Parking Support Brake) (if

equipped)

• BSM (Blind Spot Monitor)

• Navigation system (if equipped)

Also, not only can the following system

not be utilized fully, but it may even nega-

tively affect the drive-train components:

• AWD system

■

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

When driving with the compact spare

tire installed, the vehicle height will be

different than when driving with standard

tires. Be careful when driving over

uneven road surfaces, etc.

■

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.

349

7-2. Steps to take in an emergency

When trouble

ari

ses

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



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



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



P.130)



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



P.60)

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



The battery may be discharged.
(



P.353)



The battery terminal connections
may be loose or corroded.
(



P.294)

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. (



P.349)

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



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



P.294)



The battery may be discharged.
(



P.353)



There may be a malfunction in the
steering lock system.

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:

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



P.139)

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.130), 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 head-
lights do not turn on, or the horn
does not sound.

Starting the engine in an emer-
gency

350

7-2. Steps to take in an emergency

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 that were provided with your

vehicle.

351

7-2. Steps to take in an emergency

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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.

●

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

set, cancel the function. (



P.98)

■

Doors

Use the mechanical key (



P.88) in

order to perform the following opera-
tions:

If the fuel filler door cannot
be opened

If the fuel filler door cannot be
opened by pressing the center of
the rear edge of the fuel filler door
with the doors unlocked, the follow-
ing 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.98) 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 to your

Lexus dealer.

Locking and unlocking the
doors, unlocking the trunk

352

7-2. Steps to take in an emergency

Locks all the doors

Unlocks the door

Turning the key rearward unlocks the
driver’s door. Turning the key once again
within 5 seconds unlocks the other doors.

■

Trunk

Turn the mechanical key clockwise to
open. (



P.61)

■

Key linked functions

Closes the windows and moon roof
(turn and hold)

Opens the windows and moon roof
(turn and hold)

: This setting 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 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 custom-

ization 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.

In the event that the engine still cannot

WARNING

■

When using the mechanical key and

operating the power windows or

moon roof

Operate the power window or 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 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 engine

353

7-2. Steps to take in an emergency

When trouble

ari

ses

be started, contact your Lexus dealer.

■

Stopping the engine

Shift the shift lever to P and press the engine

switch as you normally do when stopping

the engine.

■

Replacing the 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.308)

■

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.132)

If the vehicle battery is dis-
charged

The following procedures may be
used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus dealer
or a qualified repair shop.

354

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 by following the steps below.

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.62)

Open the hood. (



P.285)

IS500:Remove the engine cover.
Raise the rear of the engine cover
to remove the rear clip, and then
raise the front of the engine cover
to remove the front clips.

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 connect the
clamp at the other end of the negative cable to  .



IS350 AWD/IS350/IS300 AWD

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-

Restarting the engine

A
B
C
D

355

7-2. Steps to take in an emergency

When trouble

ari

ses

ing parts as shown in the illustration



IS300



IS500

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.

A
B
C
D

356

7-2. Steps to take in an emergency

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

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 vehi-
cle 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 off.

●

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.

■

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 discharged, be

especially careful when reconnecting the

battery.

WARNING

■

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:

357

7-2. Steps to take in an emergency

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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
radiator core (radiator) for any
leaks.

WARNING

●

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.

●

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 handling

the battery support, terminals, and

other battery-related parts.

●

Do not allow children near the battery.

NOTICE

■

When handling jumper cables

When connecting the jumper cables,

ensure that they do not become entan-

gled in the cooling fans or engine drive

belt.

If your vehicle overheats

The following may indicate that
your vehicle is overheating.



The needle of the engine coolant
temperature gauge (



P.69)

enters 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

358

7-2. Steps to take in an emergency



IS350 AWD/IS350/IS300
AWD/IS300



IS500

Radiator
Cooling fans

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

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



Engine (IS350
AWD/IS350/IS300 AWD)

Reservoir cap
“FULL” line
“LOW” line



Engine (IS300)

Reservoir cap
“FULL” line
“LOW” line



Engine (IS500)

Reservoir cap
“FULL” line
“LOW” line

A
B

A
B
C

359

7-2. Steps to take in an emergency

When trouble

ari

ses



Intercooler (IS300)

Reservoir cap
“F” line
“L” line

Add coolant if necessary.

Water can be used in an emergency if

coolant is unavailable.



Engine (IS350
AWD/IS350/IS300 AWD)



Engine (IS300)



Engine (IS500)



Intercooler (IS300)

Start the engine and turn the air
conditioning system on to check
that the radiator cooling fans oper-
ate and to check for coolant leaks
from the radiator or hoses.

The fans operate when the air conditioning

system is turned on immediately after a

cold start. Confirm that the fans are oper-

ating by checking the fan sound and air

flow. If it is difficult to check these, turn the

air conditioning system on and off repeat-

edly. (The fans may not operate in freezing

temperatures.)

If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.

Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner’s Manual” is shown on the

A
B
C

360

7-2. Steps to take in an emergency

multi-information display.
If the message does not disappear:
Stop the engine and contact your
Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the
nearest 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.

●

Keep hands and clothing (especially a

tie, a scarf or a muffler) away from the

fans and belts.

Failure to do so may cause the hands

or clothing to be caught, resulting in

serious injury.

●

IS350 AWD/IS350/IS300 AWD:

Do not loosen the coolant inlet cap or

coolant reservoir cap while the engine

and radiator are hot. (The coolant inlet

cap is located under the engine cover.)

High temperature steam or coolant

could spray out.

●

IS300: Do not loosen the coolant inlet

cap, coolant reservoir cap, or inter-

cooler reservoir cap while the engine

and radiator are hot. High tempera-

ture steam or coolant could spray out.

●

IS500: Do not loosen the coolant inlet

cap or coolant reservoir cap while the

engine and radiator are hot. High tem-

perature steam or coolant could spray

out.

NOTICE

■

When adding engine coolant

Add coolant slowly after the engine has

cooled down sufficiently. Adding cool

coolant to a hot engine too quickly can

cause damage to the engine.

■

To prevent damage to the cooling sys-

tem

Observe the following precautions:

●

Avoid contaminating the coolant with

foreign matter (such as sand or dust

etc.).

Content .. 19 20 21 22 ..