Lexus RX (2022 year). Manual in english — page 25

418

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 and front passenger’s seat belt warning buzzer:

The driver’s and front passenger’s seat belt warning buzzer sounds to alert the driver and
front passenger that his or her seat belt is not fastened. If the seat belt is unfastened, the
buzzer sounds intermittently for a certain period of time after the vehicle reaches a certain
speed.

■

Rear passengers’ seat belt reminder light

*1

(warning buzzer)

*2

*1

: This light illuminates on the center panel.

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.

*2

: 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 intermittently
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

Indicates that remaining fuel is approximately 10.8 L (2.8 gal., 2.3 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

(RX350)

or

(RX350L)

Warns the rear passengers to fasten their seat belts



Fasten the seat belt.

419

7

7-2. Steps to take in an emergency

When trouble

ar

ises

■

Tire pressure warning light

■

LTA indicator (warning buzzer)

■

Stop & Start cancel indicator

■

Lexus parking assist-sensor OFF indicator (warning buzzer)

Warning light

Details/Actions

Indicates the following:



Low tire pressure due to flat tire;



Low tire pressure due to natural causes; or



The tire pressure warning system is malfunctioning



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



P.422)

Warning light

Details/Actions

(orange)

(if equipped)

Indicates a malfunction in the LTA (Lane Tracing Assist)



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



P.239)

Warning light

Details/Actions

(flashes)

(if equipped)

Indicates a malfunction in the Stop & Start system
(The Stop & Start cancel indicator will come on when the system is
canceled:



P.257)



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.

Warning light

Details/Actions

(flashes)

(if equipped)

Indicates a malfunction in the Lexus parking assist-sensor function



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.

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.271)

420

7-2. Steps to take in an emergency

■

RCTA OFF indicator (warning buzzer)

■

PKSB OFF indicator (warning buzzer)

Warning light

Details/Actions

(flashes)

(if equipped)

Indicates a malfunction in the RCTA (Rear Crossing Traffic Alert) func-
tion



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.

Indicates that the rear bumper around the radar sensor is covered with
dirt, etc. (



P.263)



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



P.277)

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 any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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.287, 424)

421

7

7-2. Steps to take in an emergency

When trouble

ar

ises

■

PCS warning light

■

Slip indicator

■

Parking brake indicator

Warning light

Details/Actions

(flashes or illumi-

nates)

(if equipped)

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



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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.220, 427)

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



P.230

Warning light

Details/Actions

When the warning light is illuminated:
Indicates a malfunction in:



The VSC system;



The TRC system;



The Trailer Sway Control; or



The hill-start assist control system;



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.

When the warning light flashes:
Indicates that the VSC, TRC or Trailer Sway Control system is operating

Warning light

Details/Actions

(flashes)

It is possible that the parking brake is not fully engaged or released



Operate the parking brake switch once again.

This light comes on when the parking brake is not released. If the light
turns off after the parking brake is fully released, the system is operating
normally.

422

7-2. Steps to take in an emergency

■

Brake hold operated indicator

■

Master warning light

■

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.

■

If the malfunction indicator lamp comes

on while driving

The malfunction indicator lamp will come

on if the fuel tank becomes completely

empty. If the fuel tank is empty, refuel the

vehicle immediately. The malfunction indi-

cator lamp will go off after several trips.
If the malfunction indicator lamp does not

go off, contact any authorized Lexus retailer

or Lexus authorized repairer, or any reliable

repairer as soon as possible.

■

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.428, 439

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

1 minute then stays on

There may be a malfunction in the tire

pressure warning system. Have the vehicle

inspected by any authorized Lexus retailer

or Lexus authorized repairer, or any relia-

ble repairer immediately.



If the tire pressure warning light comes

on

1

After the temperature of the tires has

lowered sufficiently, check the inflation

pressure of each tire and adjust them to

the specified level.

2

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.384)

If the warning light does not turn off several

minutes after the initialization has been per-

formed, have the vehicle inspected by any

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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.424

423

7

7-2. Steps to take in an emergency

When trouble

ar

ises

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer imme-

diately.

■

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

leaks or 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

Vehicles with a compact spare tire: The

compact spare tire is not equipped with a

tire pressure warning valve and transmitter.

If a tire goes flat, the tire pressure warning

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.
Vehicles with a full-size spare tire: The spare

tire is also equipped with a tire pressure

warning valve and transmitter. The tire pres-

sure warning light will turn on if the tire infla-

tion pressure of the spare tire is low. If a tire

goes flat, the tire pressure warning 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.383

WARNING

■

If both the ABS and the brake system

warning lights remain on

Stop your vehicle in a safe place immedi-

ately and contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

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. Adjust the tire infla-

tion pressure immediately.

●

Vehicles with a spare tire: 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 any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

424

7-2. Steps to take in an emergency

WARNING

●

Vehicles with an emergency tire punc-

ture repair kit: If the tire pressure warn-

ing 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, repair

the flat tire by using emergency tire

puncture repair kit.

●

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.

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.

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
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

F SPORT models:

A

B

425

7

7-2. Steps to take in an emergency

When trouble

ar

ises

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 any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer immediately.

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
any authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

A

B

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

426

7-2. Steps to take in an emergency



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.415)

*

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

■

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 “Shift to P Before Exiting Vehicle” is

displayed

Message is displayed when the driver’s

door is opened without turning the engine

switch off with the shift lever in any position

other than P.
Shift the shift lever to P.

■

If “Power Turned Off to Save Battery” is

displayed

This message is displayed when the power

was cut off due to the automatic power off

function. The next time the engine is started,

increase the engine speed slightly and

maintain it at that speed for approximately

5 minutes to recharge the battery.

■

If “AWD System Overheated Switching

to 2WD Mode” or “AWD System Over-

heated 2WD Mode Engaged” is dis-

played (AWD models)

This message may be displayed when driv-

ing under extremely high load conditions.
Drive the vehicle at low speeds or stop the

vehicle in a safe place with the engine run-

ning until the message is cleared.
If the message is not cleared, have the vehi-

cle inspected by any authorized Lexus

retailer or Lexus authorized repairer, or any

reliable repairer.

■

If “Headlight System Malfunction Visit

Your Dealer” is displayed

The following systems may be malfunction-

ing. Have the vehicle inspected by any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer imme-

diately.

●

The LED headlight system

●

The automatic headlight leveling system

●

AHS (Adaptive High-beam System) (if

equipped)

●

Automatic High Beam (if equipped)

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

427

7

7-2. Steps to take in an emergency

When trouble

ar

ises

■

If “Radar Cruise Control Unavailable

equipped)

The dynamic radar cruise control with

full-speed range system is suspended tem-

porarily or until the problem shown in the

message is resolved. (causes and coping

methods:



P.220)

■

If “Radar Cruise Control Unavailable” is

displayed (if equipped)

The dynamic radar cruise control with

full-speed range system cannot be used

temporarily. 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.220, 421)

●

PCS (Pre-Collision system) (if equipped)

●

LTA (Lane Tracing Assist) (if equipped)

●

AHS (Adaptive High-beam System) (if

equipped)

●

Automatic High Beam (if equipped)

●

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.220, 415)

●

PCS (Pre-Collision system) (if equipped)

●

LTA (Lane Tracing Assist) (if equipped)

●

Dynamic radar cruise control with

full-speed range

■

If “Check Fuel Cap” is displayed (if

equipped)

The fuel tank cap is not properly installed.

Correctly install the fuel tank cap.

■

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.375)

■

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 any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer. After changing the engine oil,

make sure to reset the message. (



P.375)

■

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 any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer immedi-

ately.

■

If a message that indicates the need for

played

●

“Engine Coolant Temp High” is shown on

the multi-information display, follow the

instructions. (



P.465)

●

“Exhaust Filter Full” is shown on the

multi-information display, follow the

instructions. (



P.296)

●

“Transmission Fluid Temp High” is shown

on the multi-information display, the auto-

matic transmission fluid temperature may

be too high. Immediately stop the vehicle

in a safe place, shift the shift lever to P

with the engine running and wait until the

message is cleared. If the message is not

cleared, contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

●

If the following message is shown on the

multi-information display, it may indicate

a malfunction. Have the vehicle inspected

by any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer immediately.

• “Smart Entry & Start System Malfunc-

tion”

●

If any of the following messages are

428

7-2. Steps to take in an emergency

shown on the multi-information display, it

may indicate a malfunction. Immediately

stop the vehicle and contact any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

• “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.406)



Check the degree of the tire dam-
age.

A tire should only be repaired with the
emergency tire puncture repair kit if
the damage is caused by a nail or
screw passing through the tire tread.
• Do not remove the nail or screw

NOTICE

■

If “High Power Consumption Partial

Limit On AC/Heater Operation” is

displayed frequently

There is a possible malfunction relating

to the charging system or the battery

may be deteriorating. Have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.
Vehicles with a Heated Windshield

Defroster: This message will be displayed

when the Heated Windshield Defroster

is operating. This is not a malfunction.

If you have a flat tire (vehi-
cles without a spare tire)

Your vehicle is not equipped with a
spare tire, but instead is equipped
with an emergency tire puncture
repair kit.

A puncture caused by a nail or
screw passing through the tire
tread can be repaired temporarily
with the emergency tire puncture
repair kit.

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 repairing the tire

429

7

7-2. Steps to take in an emergency

When trouble

ar

ises

from the tire. Removing the object
may widen the opening and
disenable emergency repair with
the kit.

• To avoid sealant leakage, move the

vehicle until the area of the punc-
ture, if known, is positioned at the
top of the tire.

■

A flat tire that cannot be repaired with

the emergency tire puncture repair kit

In the following cases, the tire cannot be

repaired with the emergency tire puncture

repair kit. Contact any authorized Lexus

retailer or Lexus authorized repairer, or any

reliable repairer.

●

When the tire is damaged due to driving

without sufficient air pressure

●

When the tire lost air pressure due to a

crack or damage in the tire sidewall

●

When the tire is visibly separated from

the wheel

●

When the cut or damage to the tread is 4

mm (0.16 in.) long or more

●

When the wheel is damaged

●

When 2 or more sharp objects, such as

nails or screws, have passed through the

tread on a single tire

●

When there is more than one hole or cut

in the damaged tire

●

When the sealant has expired

430

7-2. Steps to take in an emergency



RX300/350

Towing eyelet
Jack handle
Wheel nut wrench
Emergency tire puncture repair kit

Jack

*

*

: Use of the jack (



P.442, 443)

Location of the emergency tire puncture repair kit and towing eyelet

A
B
C
D

E

431

7

7-2. Steps to take in an emergency

When trouble

ar

ises



RX350L

Towing eyelet
Jack handle
Wheel nut wrench
Emergency tire puncture repair kit

Jack

*

*

: Use of the jack (



P.442, 443)



Bottle

A
B
C
D

E

Emergency tire puncture repair
kit components

432

7-2. Steps to take in an emergency

Air release cap
Hose
Sticker



Compressor

Air pressure gauge
Rubber stopper
Power plug
Compressor switch

■

Note for checking the emergency tire

puncture repair kit

Check the sealant expiry date occasionally.

The expiry date is shown on the bottle. Do

not use sealant whose expiry date has

already passed. Otherwise, repairs con-

ducted using the emergency tire puncture

repair kit may not be performed properly.

■

Emergency tire puncture repair kit

●

The sealant has a limited life span. The

expiry date is marked on the bottle. The

sealant should be replaced before the

expiry date. Contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer for

replacement.

●

The sealant stored in the emergency tire

puncture repair kit can be used only once

to temporarily repair a single tire. If the

sealant has been used and needs to be

purchased, contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer. The compressor is

reusable.

●

The sealant can be used when the outside

temperature is from -40°C (-40°F) to

60°C (140°F).

●

The kit is exclusively designed for size

and type of tires originally installed on

your vehicle. Do not use it for tires that a

different size than the original ones, or for

any other purposes.

●

If the sealant gets on your clothes, it may

stain.

●

If the sealant adheres to a wheel or the

surface of the vehicle body, the stain may

not be removable if it is not cleaned at

once. Immediately wipe away the sealant

with a wet cloth.

●

During operation of the kit, a loud opera-

tion noise is produced. This does not indi-

cate a malfunction.

●

Do not use to check or to adjust the tire

pressure.

A
B
C

A
B
C
D

WARNING

■

Caution while driving

Observe the following precautions.

Failure to do so may cause an accident.

●

The emergency tire puncture repair kit

is made exclusively for your vehicle.

Do not use it on other vehicles.

●

Do not use the emergency tire punc-

ture repair kit for tires that are a differ-

ent size than the specified ones or for

any other purpose. Doing so may

cause the tires to not be repaired

properly.

■

Precautions for use of the sealant

●

Ingesting the sealant is hazardous to

your health. If you ingest sealant, con-

sume as much water as possible, then

immediately consult a doctor.

433

7

7-2. Steps to take in an emergency

When trouble

ar

ises

1

Secure the deck board using the
hook. (



P.344, 346)

2

Take out the emergency tire punc-
ture repair kit.

1

Remove the valve cap from the
valve of the punctured tire.

2

Extend the hose. Remove the air
release cap from the hose.

3

Connect the hose to the valve.

Screw the end of hose clockwise as far as

possible.

4

Make sure that the compressor
switch is off.

WARNING

●

If sealant gets in eyes or adheres to

skin, immediately wash it off with water.

If discomfort persists, consult a doctor.

Taking out the emergency tire
puncture repair kit

Emergency repair method