Content .. 19 20 21 22 ..

Lexus ES350 (2023 year). Manual in english - page 21

347

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Brake system warning light (warning buzzer)

■

Brake system warning light (warning buzzer)

■

High coolant temperature warning light

(warning buzzer)

: This light illuminates on the multi-information display.

If a warning light turns on or a warning buzzer sounds

Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.

Actions to the warning lights or warning buzzers

Warning light

Details/Actions

(U.S.A.)

(red)

(Canada)

Indicates that:



The brake fluid level is low; or



The brake system is malfunctioning



Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.

Warning light

Details/Actions

(yellow)

Indicates a malfunction in the parking brake system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates that the engine coolant temperature is too high



Immediately stop the vehicle in a safe place.
Handling method (



P.378)

348

7-2. Steps to take in an emergency

■

Charging system warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Low engine oil pressure warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Malfunction indicator lamp (warning buzzer)

■

SRS warning light (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the vehicle’s charging system



Immediately stop the vehicle in a safe place and contact your
Lexus dealer.

Warning light

Details/Actions

Indicates that the engine oil pressure is too low



Immediately stop the vehicle in a safe place and contact your
Lexus dealer.

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The electronic engine control system; or



The electronic throttle control system



Immediately stop the vehicle in a safe place and contact your
Lexus dealer.

Warning light

Details/Actions

Indicates a malfunction in:



The SRS airbag system;



The front passenger occupant classification system; or



The seat belt pretensioner system



Have the vehicle inspected by your Lexus dealer immediately.

349

7-2. Steps to take in an emergency

When trouble

ari

ses

■

ABS warning light (warning buzzer)

■

Inappropriate pedal operation warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Electric power steering system warning light (warning buzzer)

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The ABS; or



The brake assist system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

When a buzzer sounds:



Brake Override System is malfunctioning



Drive-Start Control is malfunctioning



Drive-Start Control is operating



PKSB (Parking Support Brake) (if equipped) is operating



Follow the instructions displayed on the multi-information display.

When a buzzer does not sound:
Brake Override System is operating.



Release the accelerator pedal and depress the brake pedal.

Warning light

Details/Actions

(red)

(yellow)

Indicates a malfunction in the EPS (Electric Power Steering) system



Have the vehicle inspected by your Lexus dealer immediately.

350

7-2. Steps to take in an emergency

■

Low fuel level warning light

■

Driver’s and front passenger’s seat belt reminder light (warning buzzer)

: Driver’s seat belt warning buzzer:

The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt is
not fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds. If the seat belt is still unfastened, the buzzer sounds intermittently for a certain
period of time after the vehicle reaches a certain speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger that his
or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds intermit-
tently for a certain period of time after the vehicle reaches a certain speed.

■

Rear passengers’ seat belt reminder lights

(warning buzzer)

: This light illuminates on the multi-information display. Regardless of whether or not a

rear passenger is present, if the engine switch is turned to IGNITION ON mode with
the rear seat belts unfastened, this light will also illuminate for a certain period of time.

: Rear passengers’ seat belt warning buzzer:

The rear passengers’ seat belt warning buzzer sounds to alert the rear passenger that his
or her seat belt is not fastened. If the seat belt is unfastened, the buzzer sounds intermit-
tently for a certain period of time, after the seat belt is fastened and unfastened and the
vehicle reaches a certain speed.

Warning light

Details/Actions

2WD models: Indicates that remaining fuel is approximately 2.4 gal. (9
L, 2.0 Imp.gal.) or less
AWD models: Indicates that remaining fuel is approximately 2.1 gal. (8
L, 1.8 Imp.gal.) or less



Refuel the vehicle.

Warning light

Details/Actions

Warns the driver and/or front passenger to fasten their seat belts



Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat
belt also needs to be fastened to make the warning light (warning
buzzer) turn off.

Warning light

Details/Actions

Warns the rear passengers to fasten their seat belts



Fasten the seat belt.

351

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Tire pressure warning light

■

LTA indicator

(warning buzzer)

: This light illuminates on the multi-information display.

■

Intuitive parking assist OFF indicator (warning buzzer)

Warning light

Details/Actions

When the light comes on after blinking for approximately 1 minute:
Malfunction in the tire pressure warning system



Have the system checked by your Lexus dealer.

When the light comes on:
Low tire inflation pressure such as



Natural causes



Flat tire



Immediately stop the vehicle in a safe place.
Handling method (



P.354)

Warning light

Details/Actions

(orange)

Indicates a malfunction in the LTA (Lane Tracing Assist)



Follow the instructions displayed on the multi-information display.
(



P.191)

Warning light

Details/Actions

(flashes)

(if equipped)

When a buzzer sounds:
Indicates a malfunction in the intuitive parking assist function



Have the vehicle inspected by your Lexus dealer immediately.

When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.



Follow the instructions displayed on the multi-information display.
(



P.215)

352

7-2. Steps to take in an emergency

■

RCTA OFF indicator (warning buzzer)

■

RCD OFF indicator (warning buzzer)

■

PKSB OFF indicator (warning buzzer)

Warning light

Details/Actions

(flashes)

When a buzzer sounds:
Indicates a malfunction in the RCTA (Rear Cross Traffic Alert) function



Have the vehicle inspected by your Lexus dealer immediately.

When a buzzer does not sound:
Indicates that the rear bumper around the radar sensor is covered with
dirt, etc. (



P.206)



Follow the instructions displayed on the multi-information display.
(



P.222)

Warning light

Details/Actions

(flashes or illumi-

nates)

(if equipped)

Indicates a RCD (Rear Camera Detection) function is malfunctioning or
disabled.



Follow the instructions displayed on the multi-information display.
(



P.228, 357)

Warning light

Details/Actions

(flashes)

(if equipped)

When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support Brake) system



Have the vehicle inspected by your Lexus dealer immediately.

When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.



Follow the instructions displayed on the multi-information display.
(



P.235, 357)

353

7-2. Steps to take in an emergency

When trouble

ari

ses

■

PCS warning light (warning buzzer)

■

Slip indicator

■

Parking brake indicator

Warning light

Details/Actions

(flashes or illumi-

nates)

When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Collision System)



Have the vehicle inspected by your Lexus dealer immediately.

When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily unavailable,
corrective action may be necessary.



Follow the instructions displayed on the multi-information display.
(



P.172, 357)

If the PCS (Pre-Collision System) or VSC (Vehicle Stability Control)
system is disabled, the PCS warning light will illuminate.



P.183

Warning light

Details/Actions

Indicates a malfunction in:



The VSC system;



The TRAC system; or



The hill-start assist control system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(flashes)

(U.S.A.)

(flashes)

(Canada)

Indicates a malfunction in the parking brake system



Have the vehicle inspected by your Lexus dealer immediately.

354

7-2. Steps to take in an emergency

■

Brake hold operated indicator (warning buzzer)

■

Master warning light (warning buzzer)

■

Warning buzzer

In some cases, the buzzer may not be heard

due to being in a noisy location or audio

sound.

■

Front passenger detection sensor, seat

belt reminder and warning buzzer

●

If luggage is placed on the front passen-

ger seat, the front passenger detection

sensor may cause the warning light to

flash and the warning buzzer to sound

even if a passenger is not sitting in the

seat.

●

If a cushion is placed on the seat, the sen-

sor may not detect a passenger, and the

warning light may not operate properly.

■

SRS warning light

This warning light system monitors the air-

bag sensor assembly, front impact sensors,

side impact sensors (front door), side

impact sensors (front), side impact sensors

(rear), driver’s seat position sensor, driver’s

seat belt buckle switch, front passenger

occupant classification system (ECU and

sensors), “PASSENGER AIR BAG” indica-

tor lights, front passenger’s seat belt buckle

switch, seat belt pretensioners, airbags,

interconnecting wiring and power sources.

(



P.28)

■

Electric power steering system warning

light (warning buzzer)

When the battery charge becomes insuffi-

cient or the voltage temporarily drops, the

electric power steering system warning

light may come on and the warning buzzer

may sound.

■

When the tire pressure warning light

comes on

Inspect the tires to check if a tire is punc-

tured.
If a tire is punctured:



P.361

If none of the tires are punctured:

Turn the engine switch off then turn it to

IGNITION ON mode. Check if the tire

pressure warning light comes on or blinks.



If the tire pressure warning light blinks for

approximately 1 minute then stays on

There may be a malfunction in the tire pres-

sure warning system. Have the vehicle

inspected by your Lexus dealer immedi-

ately.



If the tire pressure warning light comes

After the temperature of the tires has

lowered sufficiently, check the inflation

pressure of each tire and adjust them to

the specified level.

If the warning light does not turn off

even after several minutes have

elapsed, check that the inflation pres-

sure of each tire is at the specified level

and perform initialization. (



P.321)

■

The tire pressure warning light may

come on due to natural causes

The tire pressure warning light may come

on due to natural causes such as natural air

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.



P.357

355

7-2. Steps to take in an emergency

n t

ris

leaks and tire inflation pressure changes

caused by temperature. In this case, adjust-

ing the tire inflation pressure will turn off the

warning light (after a few minutes).

■

When a tire is replaced with a spare tire

The compact spare tire is not equipped with

a tire pressure warning valve and transmit-

ter. If a tire goes flat, the tire pressure warn-

ing light will not turn off even though the flat

tire has been replaced with the spare tire.

Replace the spare tire with the repaired tire

and adjust the tire inflation pressure. The

tire pressure warning light will go off after a

few minutes.

■

Conditions that the tire pressure warn-

ing system may not function properly



P.320

WARNING

■

If both the ABS and the brake system

warning lights remain on

Stop your vehicle in a safe place immedi-

ately and contact your Lexus dealer.

The vehicle will become extremely

unstable during braking, and the ABS

system may fail, which could cause an

accident resulting in death or serious

injury.

■

When the electric power steering

system warning light comes on

When the light comes on yellow, the

assist to the power steering is restricted.

When the light comes on red, the assist

to the power steering is lost and handling

operations of the steering wheel become

extremely heavy.

When steering wheel operations are

heavier than usual, grip the steering

wheel firmly and operate it using more

force than usual.

■

If the tire pressure warning light

comes on

Be sure to observe the following precau-

tions.

Failure to do so could cause a loss of

vehicle control and result in death or

serious injury.

●

Stop your vehicle in a safe place as

soon as possible. Check and adjust the

tire inflation pressure immediately.

●

If the tire pressure warning light comes

on even after tire inflation pressure

adjustment, it is probable that you have

a flat tire. Check the tires. If a tire is flat,

change it with the spare tire and have

the flat tire repaired by the nearest

Lexus dealer.

●

Avoid abrupt maneuvering and brak-

ing.

If the vehicle tires deteriorate, you

could lose control of the steering

wheel or the brakes.

■

If a blowout or sudden air leakage

should occur

The tire pressure warning system may

not activate immediately.

■

Maintenance of the tires

Each tire, including the spare (if pro-

vided), should be checked monthly when

cold and inflated to the inflation pressure

recommended by the vehicle manufac-

turer on the vehicle placard or tire infla-

tion pressure label (tire and load

information label). (If your vehicle has

tires of a different size than the size indi-

cated on the vehicle placard or tire infla-

tion pressure label [tire and load

information label], you should determine

the proper tire inflation pressure for

those tires.)

356

7-2. Steps to take in an emergency

WARNING

As an added safety feature, your vehicle

has been equipped with a tire pressure

monitoring system (TPMS-tire pressure

warning system) that illuminates a low

tire pressure telltale (tire pressure warn-

ing light) when one or more of your tires

is significantly under-inflated. Accord-

ingly, when the low tire pressure telltale

(tire pressure warning light) illuminates,

you should stop and check your tires as

soon as possible, and inflate them to the

proper pressure. Driving on a signifi-

cantly under-inflated tire causes the tire

to overheat and can lead to tire failure.

Under-inflation also reduces fuel effi-

ciency and tire tread life, and may affect

the vehicle’s handling and stopping abil-

ity.

Please note that the TPMS (tire pressure

warning system) is not a substitute for

proper tire maintenance, and it is the

driver’s responsibility to maintain correct

tire pressure, even if under-inflation has

not reached the level to trigger illumina-

tion of the TPMS low tire pressure telltale

(tire pressure warning light).

Your vehicle has also been equipped

with a TPMS (tire pressure warning sys-

tem) malfunction indicator to indicate

when the system is not operating prop-

erly. The TPMS (tire pressure warning

system) malfunction indicator is com-

bined with the low tire pressure telltale

(tire pressure warning light). When the

system detects a malfunction, the telltale

will flash for approximately one minute

and then remain continuously illumi-

nated. This sequence will continue upon

subsequent vehicle start-ups as long as

the malfunction exists. When the mal-

function indicator is illuminated, the sys-

tem may not be able to detect or signal

low tire pressure as intended.

TPMS (tire pressure warning system)

malfunctions may occur for a variety of

reasons, including the installation of

replacement or alternate tires or wheels

on the vehicle that prevent the TPMS

(tire pressure warning system) from

functioning properly. Always check the

TPMS (tire pressure warning system)

malfunction telltale after replacing one

or more tires or wheels on your vehicle

to ensure that the replacement or alter-

nate tires and wheels allow the TPMS

(tire pressure warning system) to con-

tinue to function properly.

NOTICE

■

To ensure the tire pressure warning

system operates properly

Do not install tires with different specifi-

cations or makers, as the tire pressure

warning system may not operate prop-

erly.

357

7-2. Steps to take in an emergency

When trouble

ari

ses

If a warning message is dis-
played

The multi-information display
shows warnings of system malfunc-
tions, incorrectly performed opera-
tions, and messages that indicate a
need for maintenance. When a
message is shown, perform the cor-
rection procedure appropriate to
the message.

Except F SPORT models:

Master warning light

The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.

Multi-information display

Follow the instructions of the message
on the multi-information display.
If any of the warning messages are
shown again after the appropriate
actions have been performed, contact
your Lexus dealer.

F SPORT models (main meter in
center position):

Master warning light

The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.

Multi-information display

Follow the instructions of the message
on the multi-information display.
If any of the warning messages are
shown again after the appropriate
actions have been performed, contact
your Lexus dealer.

358

7-2. Steps to take in an emergency

The master warning light and warning buzzers operate as follows depending on
the content of the message. If a message indicates the need for inspection by a
dealer, have the vehicle inspected by your Lexus dealer immediately.

F SPORT models (main meter
moved to the right):

Master warning light

The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently being displayed on the
multi-information display.

Multi-information display

Follow the instructions of the message
on the multi-information display.
If any of the warning messages are
shown again after the appropriate
actions have been performed, contact
your Lexus dealer.

Messages and warnings

Warning buzzer

Warning

Comes on

Sounds

Indicates an important situation, such as when a sys-
tem related to driving is malfunctioning or that dan-
ger may result if the correction procedure is not
performed

Flashes

Sounds

Indicates a situation, such as when damage to the
vehicle or danger may result

359

7-2. Steps to take in an emergency

When trouble

ari

ses

: A buzzer sounds the first time a message is shown on the multi-information display.



In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.



If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective action according to the warning light. (



P.347)

■

Warning messages

The warning messages explained below

may differ from the actual messages

according to operation conditions and vehi-

cle specifications.

■

Warning buzzer

In some cases, the buzzer may not be heard

due to being in a noisy location or audio

sound.

■

If “Engine Oil Level Low Add or

Replace” is displayed

The engine oil level is low. Check the level

of the engine oil, and add if necessary.
This message may appear if the vehicle is

stopped on a slope. Move the vehicle to a

level surface and check to see if the mes-

sage disappears.

■

If “Engine Stopped Steering Power

Low” is displayed

This message is displayed if the engine is

stopped while driving.
When steering wheel operations are

heavier than usual, grip the steering wheel

firmly and operate it using more force than

usual.

■

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 engine, increase the engine speed

slightly and maintain that level for approxi-

mately 5 minutes to recharge the 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

The dynamic radar cruise control with full-

speed range system is suspended tempo-

rarily or until the problem shown in the mes-

Comes on

Does not sound

Indicates a condition, such as malfunction of electri-
cal components, their condition, or indicates the
need for maintenance

Flashes

Does not sound

Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctly

Warning buzzer

Warning

360

7-2. Steps to take in an emergency

sage is resolved. (causes and coping

methods:



P.172)

■

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.172, 347)

●

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.172, 347)

●

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.300)

: Refer to the separate “Scheduled Main-

■

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.300)

: Refer to the separate “Scheduled Main-

■

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.312)

■

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.312)

■

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

played

●

If any of the following messages are

shown on the multi-information display,

follow the instructions.

• “Engine Coolant Temp High” (



P.378)

●

If any of the following messages are

shown on the multi-information display, it

may indicate a malfunction. Have the

361

7-2. Steps to take in an emergency

n t

ris

vehicle inspected by your Lexus dealer

immediately.

• “Access System with Elec. Key Malfunc-

tion”

●

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”



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



Set the parking brake.



Shift the shift lever to P.



Stop the engine.



Turn on the emergency flashers.
(



P.340)

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 battery

may be deteriorating. Have the vehicle

inspected by your Lexus dealer.

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.317

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

362

7-2. Steps to take in an emergency



Type A

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

A
B
C
D

Content .. 19 20 21 22 ..