Lexus LC500C (2022 year). Manual in english — page 19

314

7-2. Steps to take in an emergency

■

Front passenger detection sensor, seat belt reminder and warning buzzer

If luggage is placed on the front passenger 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 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?

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 pos-

sible.

■

Electric power steering system warning light (warning buzzer)

When the battery charge becomes insufficient or the voltage temporarily drops, the electric

power steering system warning light may come on and the warning buzzer may sound.

■

Tire pressure warning light

When a malfunction occurs in the tire pressure warning system, the tire pressure warning

light blinks to warn the driver. However, if the warning light blinks for 1 minute, and then

remains illuminated, making it difficult to determine whether the warning light was blinking

initially, turn the engine switch from off to ON and check if the warning light blinks.

■

When the tire pressure warning light comes on

Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire pres-

sure warning reset switch will not turn off the tire pressure warning light.

■

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, adjusting the tire

inflation pressure will turn off the warning light (after a few minutes).

■

Conditions that the tire pressure warning system may not function properly



P.279

■

If the tire pressure warning light frequently comes on after blinking for 1 minute

If the tire pressure warning light frequently comes on after blinking for 1 minute when the

engine switch is turned to ON, have it checked by your Lexus dealer.

■

Warning buzzer

In some cases, the buzzer may not be heard due to being in a noisy location or audio sound.

■

Customization

The vehicle speed linked seat belt reminder buzzer can be disabled.

(Customizable features:



P.363)

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7-2. Steps to take in an emergency

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WARNING

■

If both the ABS and the brake system warning lights remain on

Stop your vehicle in a safe place immediately 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 in 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 precautions. Failure to do so could cause a loss of vehi-

cle 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.

●

Avoid abrupt maneuvering and braking. 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 provided), should be checked monthly when cold and

inflated to the inflation pressure recommended by the vehicle manufacturer on the vehi-

cle placard or tire inflation pressure label (tire and load information label). (If your vehicle

has tires of a different size than the size indicated on the vehicle placard or tire inflation

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 monitor-

ing system (TPMS-tire pressure warning system) that illuminates a low tire pressure tell-

tale (tire pressure warning light) when one or more of your tires is significantly under-

inflated. Accordingly, when the low tire pressure telltale (tire pressure warning light) illu-

minates, you should stop and check your tires as soon as possible, and inflate them to the

proper pressure. Driving on a significantly under-inflated tire causes the tire to overheat

and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life,

and may affect the vehicle’s handling and stopping ability.

316

7-2. Steps to take in an emergency

WARNING

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 illumination of the TPMS low

tire pressure telltale (tire pressure warning light).

Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-

function 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 pressure 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 subsequent 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 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 alternate tires

and wheels allow the TPMS (tire pressure warning system) to continue to function prop-

erly.

NOTICE

■

To ensure the tire pressure warning system operates properly

Do not install tires with different specifications or makers, as the tire pressure warning

system may not operate properly.

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7-2. Steps to take in an emergency

When trouble

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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.

When the main meter is in the 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 is shown
again after the appropriate actions have
been performed, contact your Lexus
dealer.

When the main meter is in the side
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 is shown
again after the appropriate actions have
been performed, contact your Lexus
dealer.

318

7-2. Steps to take in an emergency

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

: 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 vehicle specifications.

■

System warning lights

The master warning light does not come on or flash in the following cases. Instead, a sepa-

rate system warning light will come on along with a message or image shown on the multi-

information display.

●

Malfunction in the ABS

The ABS warning light comes on. (



P.309)

●

Malfunction in the charging system

The charging system warning light comes on. (



P.308)

●

Malfunction in the brake system

The brake system warning light comes on. (



P.308)

Messages and warnings

System warn-

ing light

Warning

buzzer

Warning

Comes on

Sounds

Indicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed

Comes on



Sounds



Comes on or

flashes

Sounds

Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning

Flashes



Sounds

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

Comes on



Does not

sound

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

Flashes



Does not

sound

Indicates a situation, such as when an oper-
ation has been performed incorrectly, or
indicates how to perform an operation cor-
rectly

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7-2. Steps to take in an emergency

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●

Malfunction in the EPS (Electric Power Steering) system

The electric power steering system warning light comes on. (



P.309)

●

Malfunction in the tire pressure warning system

The tire pressure warning light comes on. (



P.313)

●

Remaining fuel level is low

The low fuel level warning light comes on. (



P.312)

■

If “Shift to P Before Exiting Vehicle” is shown

The driver’s door is opened without turning the engine switch to off with the shift lever in any

position other than P. Shift the shift position to P.

■

If “Shift Is in N Release Accelerator Before Shifting” is shown

The accelerator pedal has been depressed when the shift position is in N. Release the accel-

erator pedal and shift the shift position to D or R.

■

If “Shift system malfunction Shifting unavailable Drive to a safe place and stop” or “Shift

system malfunction Driving unavailable” is shown

There is a malfunction in the shift control system. Have the vehicle inspected by your Lexus

dealer immediately.

■

If “Auto Power Off to Conserve Battery” is shown

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 approximately 5 min-

utes to recharge the battery.

■

If a message that indicates the need for the shift lever operation is displayed

To prevent the shift lever from being operated incorrectly or the vehicle from moving unex-

pectedly, a message that requires shifting the shift position may be displayed on the multi-

information display. In that case, follow the instruction of the message and shift the shift posi-

tion.

■

If a message that indicates the malfunction of front camera is displayed

The following systems may be suspended until the problem shown in the message is

resolved. (



P.172, 308)

●

PCS (Pre-Collision System)

●

LKA (Lane-Keeping Assist)

●

AHB (Automatic High Beam)

●

Dynamic radar cruise control with full-speed range

■

If a message that indicates the malfunction of radar sensor is displayed

The following systems may be suspended until the problem shown in the message is

resolved. (



P.172, 308)

●

PCS (Pre-Collision System)

●

LKA (Lane-Keeping Assist)

●

Dynamic radar cruise control with full-speed range

■

If “Engine Stopped Steering Power Low” is shown

The steering wheel may become extremely heavy. If the steering wheel becomes heavier

than usual when operating, hold firmly and operate using more force than usual.

320

7-2. Steps to take in an emergency

■

If “Maintenance Required Soon” is shown

Indicates that all maintenance according to the driven distance on the maintenance sched-
ule

should be performed soon. The message is shown approximately 4500 miles (7200

km) after the message has been reset. If necessary, perform maintenance.

: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supplement” for

the maintenance interval applicable to your vehicle.

■

If “Engine Oil Level Low Add or Replace” is shown

The engine oil level is low. Check the level of 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 message disappears.

■

If a message that indicates the need for referring to Owner’s Manual is shown

●

If any of the following messages is shown on the multi-information display, follow the

instructions.

• “Engine Coolant Temp High” (



P.340)

• “Transmission Fluid Temp High” (



P.145)

●

If any of the following messages is shown on the multi-information display, it may indicate

a malfunction. Have the vehicle inspected by your Lexus dealer immediately.

• “Access System with Elec. Key Malfunction”

• “Shift system malfunction Apply parking brake securely when parking See owner’s man-

ual”

• “P switch malfunction Apply parking brake securely when parking See owner’s manual”

• “Shift system unavailable Apply parking brake securely when parking See owner’s man-

ual”

• “Shift system malfunction See owner’s manual”

• “Shift system malfunction Stop in a safe place See owner’s manual”

• “Battery low Shifting unavailable See owner’s manual”

●

If any of the following messages is 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”

●

If “Battery low” is shown, the battery charge is insufficient. Recharge or replace the bat-

tery.

■

If a message that indicates the need for visiting your Lexus dealer is shown

The system or part shown on the multi-information display is malfunctioning. Have the vehi-

cle inspected by your Lexus dealer immediately.

■

Warning buzzer

In some cases, the buzzer may not be heard due to being in a noisy location or audio sound.

NOTICE

■

While the engine oil level warning message is displayed

Continued engine operation with low engine oil will damage the engine.

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7-2. Steps to take in an emergency

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NOTICE

■

If “High Power Consumption Partial Limit On AC/Heater Operation” is shown fre-

quently

Air conditioning, heater and other operations are temporarily limited due to high power

consumption. Turn off unnecessary electronic equipment to reduce power consumption,

and wait until the power supply returns to normal. If this message is frequently displayed,

have the vehicle inspected at your Lexus dealer.

322

7-2. Steps to take in an emergency

Take your vehicle to the nearest Lexus
dealer or authorized tire dealer as
soon as possible if any tire goes flat.

The vehicle can be driven for a maximum
of 100 miles (160 km) at a speed below 50
mph (80 km/h) after the tire pressure
warning light comes on. (



P.313)

A run-flat tire has a

mark on the

sidewall.

■

In some condition (such as at high tem-

peratures)

You cannot continue driving for up to 100

miles (160 km).

■

For the detailed information on run-flat

tires

See the tire warranty booklet.

If you have a flat tire

Your vehicle is not equipped with a
spare tire, but instead you can con-
tinue driving the vehicle with run-
flat tires even if any tire goes flat.
In this case, slow down and drive
with extra caution.

Run-flat tires

NOTICE

■

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.

■

When driving over bumps

If a vehicle has a flat tire, the vehicle

height will be lower than usual. Ensure

that nothing strikes the bottom of the

vehicle.

■

To avoid damaging the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact your Lexus

dealer or other qualified service shop as

soon as possible. Make sure to replace

the tire pressure warning valve and

transmitter when replacing the tire.

(



P.280)

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7-2. Steps to take in an emergency

When trouble

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



The electronic key may not be func-
tioning properly. (



P.326)



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



P.166)



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



P.62)



There may be a malfunction in the
shift control system.

(



P.144, 319)



There may be a malfunction in the
steering lock system.



The engine may be malfunctioning
due to an electrical problem such as
electronic key battery depletion or a
blown fuse. However, depending on
the type of malfunction, an interim
measure is available to start the
engine. (



P.324)

: It may not be possible to shift the shift

position from P.

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



The battery may be discharged.
(



P.327)



The battery terminal connections
may be loose or corroded.
(



P.276)

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

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



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



P.276)



The battery may be discharged.
(



P.327)



There may be a malfunction in the
steering lock system.

Contact your Lexus dealer if the problem

If the engine will not start

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



P.141), con-

sider each of the following points:

The engine will not start even
though the correct starting pro-
cedure is being followed.

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

The starter motor does not turn
over

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

324

7-2. Steps to take in an emergency

cannot be repaired, or if repair procedures
are unknown.

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

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



P.152)

Parking brake indicator will come on.

Turn the engine switch to ACC.

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.

Starting the engine in an emer-
gency

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.

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7-2. Steps to take in an emergency

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Open the cover inside the trunk, take
out and pull the tab.

■

When the electronic key does not work

properly

●

Make sure that the smart access system

with push-button start has not been deac-

tivated using the Remote Touch or at

your Lexus dealer. If it is off, turn the func-

tion on.

●

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

set, cancel the function. (



P.102)

Use the mechanical key (



P.92) in

order to perform the following opera-
tions:

If the fuel filler door cannot
be opened

If the fuel filler door opener switch
cannot be operated, the following
procedure can be used to open the
fuel filler door.

Opening the fuel filler door

NOTICE

■

After opening the fuel filler door

Secure the tab in its original position.

If the electronic key does not
operate properly

If communication between the
electronic key and vehicle is inter-
rupted (



P.103) 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