LEXUS LS 500 (2019 year). Instruction - part 26

412

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

wheels, drive train, axles, steering and
brakes must be in good condition.

To have your vehicle towed by another
vehicle, the towing eyelet must be
installed to your vehicle. Install the tow-
ing eyelet using the following proce-
dure.

Take out the phillips-head screw-
driver and towing eyelet.

Phillips-head screwdriver
Towing eyelet

Remove the eyelet cover using a
flathead screwdriver.

To protect the bodywork, place a rag

between the screwdriver and the vehicle

body as shown in the illustration.

Insert the towing eyelet into the
hole and tighten partially by hand.

Tighten down the towing eyelet
securely using a phillips-head
screwdriver or hard metal bar.

Securely attach cables or chains to
the towing eyelet.

Take care not to damage the vehicle body.

Enter the vehicle being towed and
start the engine.

If the engine does not start, turn the engine

switch to IGNITION ON mode.

Shift the shift position to N and
release the parking brake.

■

While towing

If the engine is not running, the power assist

for the brakes and steering will not function,

making steering and braking more difficult.

Emergency towing procedure

A
B

413

7-2. Steps to take in an emergency

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When trouble

ari

ses

 Fluid leaks under the vehicle.

(Water dripping from the air condi-
tioning after use is normal.)

 Flat-looking tires or uneven tire

wear

 Engine coolant temperature gauge

needle continually points higher
than normal.

 Changes in exhaust sound
 Excessive tire squeal when corner-

ing

 Strange noises related to the sus-

pension system

 Pinging or other noises related to

the engine

 Engine missing, stumbling or run-

ning roughly

 Appreciable loss of power
 Vehicle pulls heavily to one side

when braking

 Vehicle pulls heavily to one side

when driving on a level road

 Loss of brake effectiveness, spongy

feeling, pedal almost touches the
floor

If you think something is
wrong

If you notice any of the following
symptoms, your vehicle probably
needs adjustment or repair. Con-
tact your Lexus dealer as soon as
possible.

Visible symptoms

Audible symptoms

Operational symptoms

414

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

Follow the procedure below to restart
the engine after the system is activated.

Turn the engine switch to ACCES-
SORY mode or turn it off.

Restart the engine.

Fuel pump shut off system

To minimize the risk of fuel leakage
when the engine stalls or when an
airbag inflates upon collision, the
fuel pump shut off system stops the
supply of fuel to the engine.

Restarting the engine

NOTICE

■

Before starting the engine

Inspect the ground under the vehicle.

If you find that fuel has leaked onto the

ground, the fuel system has been dam-

aged and is in need of repair. Do not

restart the engine.

415

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

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.

Indicates that the brake pads are worn out (only the right-side pads can
be detected)
 Have the vehicle inspected by your Lexus dealer.

Warning light

Details/Actions

(yellow)

Indicates a malfunction in:
The electronically controlled brake system (vehicles with Lexus Safety

System + A); or

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.440)

416

7-2. Steps to take in an emergency

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■

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;
The electronic throttle control system; or
The electronic automatic transmission 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.

417

7-2. Steps to take in an emergency

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When trouble

ari

ses

■

Pop Up Hood warning light (warning buzzer)

■

ABS warning light (warning buzzer)

■

Brake Override System warning light/Drive-Start Control warning light

(warning buzzer)

: This light illuminates on the multi-information display.

Warning light

Details/Actions

Indicates that the Pop Up Hood system has operated
 The Pop Up Hood system cannot be reused once it has operated.

Have it replaced by your Lexus dealer.

Indicates a malfunction in the Pop Up Hood system
 Have the vehicle inspected by your Lexus dealer immediately.

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 operating;
Drive-Start Control is malfunctioning; or
Parking Support Brake function (for static objects) 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.

418

7-2. Steps to take in an emergency

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■

Electric power steering system warning light (warning buzzer)

■

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 for
6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If
the seat belt is still unfastened after 24 seconds, the buzzer will sound intermittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for
90 more seconds.
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. The buzzer sounds once if the vehicle reaches a speed of 12
mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 90 more seconds.

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.

Warning light

Details/Actions

Indicates that remaining fuel is approximately 3.4 gal. (13 L, 2.8 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.

419

7-2. Steps to take in an emergency

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When trouble

ari

ses

■

Rear passengers’ seat belt reminder lights

(warning buzzer)

: This light illuminates on the center panel.

: Rear passengers’ seat belt warning buzzer:

The rear passengers’ seat belt warning buzzer sounds to alert the rear passengers that his
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of 12
mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound
intermittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 30 more seconds.

■

Tire pressure warning light

■

LTA indicator (warning buzzer)

Warning light

Details/Actions

Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.

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.423)

Warning light

Details/Actions

(orange)

Indicates a malfunction in the LTA (Lane Tracing Assist)
 Follow the instructions displayed on the multi-information display.

(

P.237)

420

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

■

Intuitive parking assist OFF indicator (warning buzzer)

■

RCTA OFF indicator (warning buzzer)

■

RCD OFF indicator (warning buzzer)

Warning light

Details/Actions

(flashes)

(if equipped)

Indicates a malfunction in the intuitive parking assist function
 Have the vehicle inspected by your Lexus dealer 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.259)

Warning light

Details/Actions

(flashes)

(if equipped)

Indicates a malfunction in the RCTA (Rear Cross Traffic Alert) function
 Have the vehicle inspected by your Lexus dealer immediately.
Indicates that the rear bumper around the radar sensor is covered with
dirt, etc. (

P.251)

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

(

P.264)

Warning light

Details/Actions

(flashes)

(if equipped)

When a buzzer sounds:
Indicates a malfunction in the RCD (Rear Camera Detection) function
 Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the function temporarily cannot be used due to the cam-
era being dirty, etc.
 Follow the instructions displayed on the multi-information display.

(

P.268, 425)

421

7-2. Steps to take in an emergency

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When trouble

ari

ses

■

PKSB OFF indicator (warning buzzer)

■

PCS warning light

■

Slip indicator

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.274, 425)

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.
If 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.196, 20 2, 428)

If the PCS (Pre-Collision System) or VSC (Vehicle Stability Control)
system is disabled, the PCS warning light will illuminate.
 P.214, 222

Warning light

Details/Actions

Indicates a malfunction in:
The VSC system;
The TRAC system;
The hill-start assist control system;
The VGRS system (if equipped); or
The DRS system (if equipped)
 Have the vehicle inspected by your Lexus dealer immediately.

422

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

■

Parking brake indicator (warning buzzer)

■

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, Pop Up Hood com-

puter 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 occu-

pant classification system (ECU and sen-

sors), rear seat belt buckle switches (if

equipped), “AIR BAG ON” indicator light,

“AIR BAG OFF” indicator light, front pas-

senger’s seat belt buckle switch, seat belt

pretensioners, airbags, interconnecting wir-

ing and power sources. (

P.29)

■

If the malfunction indicator lamp comes

on while driving

First check the following:

●

Is the fuel tank empty?

If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?

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.

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.425

423

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

When trouble

ari

ses

If it is, tighten it securely.

The light will go off after several driving

trips.
If the light does not go off even after several

trips, contact your Lexus dealer 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.429

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

pressure 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.388)

■

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 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).

■

Conditions that the tire pressure warn-

ing system may not function properly

P.385

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.

●

Decelerate to the lowest appropriate

speed as soon as possible. Do not

drive over 50 mph (80 km/h).

●

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. Have the flat tire replaced by

the nearest Lexus dealer.

424

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

WARNING

●

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.)

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 system)

malfunction indicator to indicate when

the system is not operating properly. The

TPMS (tire pressure warning system)

malfunction indicator is combined with

the low tire pressure telltale (tire pres-

sure warning light). When the system

detects a malfunction, the telltale will

flash for approximately one minute and

then remain continuously illuminated.

This sequence will continue upon subse-

quent vehicle start-ups as long as the

malfunction exists. When the malfunction

indicator is illuminated, the system 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 func-

tioning 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 alternate

tires and wheels allow the TPMS (tire

pressure warning system) to continue 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.

425

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

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.

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

426

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

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.

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

427

7-2. Steps to take in an emergency

LS500_OM_(U)_1809

When trouble

ari

ses

 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 “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 “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

●

AFS (Adaptive Front-lighting System)

●

The automatic headlight leveling system

●

AHB (Automatic High Beam)

■

If “Radar Cruise Control Unavailable

See Owner's Manual” is displayed

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.196, 202)

■

If “Radar Cruise Control Unavailable” is

displayed

The dynamic radar cruise control with

full-speed range system cannot be used

temporarily. Use the system when it

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

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