Lexus LC500C (2024 year). Manual in english

411

7-2. Steps to take in an emergency

When trouble

ari

ses

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.204)

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.

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



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



P.416)



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



P.218)



There may be a malfunction in the
immobilizer system. (



P.94)



There may be a malfunction in the
shift control system.

(



P.187,

396)



The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system. (



P.412)

: It may not be possible to shift the shift

position from P.

Starting the engine in an emer-
gency

If the hybrid system will not
start (LC500h)

Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:

The hybrid system will not start
even though the correct starting
procedure is being followed.

412

7-2. Steps to take in an emergency

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



The 12-volt battery may be dis-
charged. (



P.417)



The 12-volt battery terminal con-
nections may be loose or corroded.
(



P.349)

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



The 12-volt battery may be dis-
charged. (



P.417)



One or both of the 12-volt battery
terminals may be disconnected.
(



P.349)

Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.

When the hybrid system does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure
except in cases of emergency.

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



P.204)

Parking brake indicator will come on.

Turn the power switch to ACC.

Press and hold the power switch for
about 15 seconds while depressing
the brake pedal firmly.

Even if the hybrid system can be
started using the above steps, the sys-
tem may be malfunctioning. Have the
vehicle inspected by your Lexus
dealer.

The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.

The interior lights and head-
lights do not turn on, or the horn
does not sound.

Starting the hybrid system in an
emergency

413

7-2. Steps to take in an emergency

n t

ris



Except Convertible

Remove the cover in the center of
the rear seat. (



P.417)

Pull the tab.



Convertible

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

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.

If the fuel filler door cannot
be opened

LC500:
If the fuel filler door opener switch
cannot be operated, the following
procedure can be used to open the
fuel filler door.

LC500h:
If the fuel filler door opener switch
cannot be operated, contact your
Lexus dealer to service the vehicle.
In case where refueling is urgently
necessary, the following proce-
dure can be used to open the fuel
filler door.

Opening the fuel filler door

414

7-2. Steps to take in an emergency

WARNING

■

After opening the fuel filler door

(except Convertible)

Make sure to put back the cover to the

center of the rear seat. Failure to do so

may cause an accident.

NOTICE

■

When opening the fuel filler door

manually (LC500h)

●

Do not open the fuel filler door manu-

ally except in an emergency. Fuel may

overflow.

●

Using the tab to open the fuel filler

door may not allow for an adequate

reduction in fuel tank pressure before

refueling. To prevent fuel from spilling

out, turn the cap slowly when remov-

ing it.

●

During refueling, fuel may spill out

from the filler opening due to air being

discharged from inside the fuel tank.

Therefore, fill the fuel tank carefully

and slowly.

■

After opening the fuel filler door

●

Secure the tab in its original position.

●

Except Convertible: Install the tab so

that it does not cover the clip installa-
tion position

. Failure to do so may

cause damage to the clip and make it

impossible to install the cover.

415

7-2. Steps to take in an emergency

n t

ris

■

When the electronic key does not work

properly

●

Make sure that the smart access system

with push-button start has not been deac-

tivated in the customization setting. If it is

off, turn the function on. (Customizable

features:



P.464)

●

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

set, cancel the function. (



P.139)

●

The electronic key function may have

stopped. (



P.139)

Use the mechanical key (



P.128) in

order to perform the following opera-
tions:

■

Locking and unlocking the door

Push in the depression on the front
edge of the driver’s door handle.

Insert the mechanical key while
pulling on the driver’s door handle.

Turn the key in order to perform
the following operations.

Locks both side doors

Closes the windows (turn and
hold)

Unlocks the door

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

Opens the windows (turn and
hold)

: These settings must be customized at

your Lexus dealer.

If the electronic key does not
operate properly

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



P.139) 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 <hybrid system> can be
started by following the procedure
below.

NOTICE

■

In case of a smart access system with

push-button start malfunction or

other key-related problems

Take your vehicle with all the electronic

keys (including the card key) provided

with your vehicle to your Lexus dealer as

soon as possible.

Locking and unlocking the
doors, opening the trunk and
using the key linked functions

A
B

416

7-2. Steps to take in an emergency

■

Opening the trunk

Unlock the doors, and press the trunk
opener switch.

Depress the brake pedal.

Touch the Lexus emblem side of
the electronic key to the engine
switch <power switch>.

When the electronic key is detected, a

buzzer sounds and the engine switch

<power switch> will turn to ON.
When the smart access system with push-

button start is deactivated in customization

setting, the engine switch <power switch>

will turn to ACC.

Firmly depress the brake pedal and
check that a message is shown on
the multi-information display.

Press the engine switch <power
switch>.

In the event that the engine <hybrid
system> still cannot be started, contact
your Lexus dealer.

■

Stopping the engine <hybrid system>

Set the parking brake, shift the shift position

to P and press the engine switch <power

switch> as you normally do when stopping

the engine <hybrid system>.

■

Electronic key battery

As the above procedure is a temporary

measure, it is recommended that the elec-

tronic key battery be replaced immediately

when the battery is depleted. (



P.368)

■

Alarm (Convertible for Canada)

Using the mechanical key to lock the doors

will not set the alarm system.
If a door is unlocked using the mechanical

key when the alarm system is set, the alarm

may be triggered.

■

Changing engine switch <power switch>

modes

Release the brake pedal and press the

engine switch <power switch> in step

above.
The engine <hybrid system> does not start

and modes will be changed each time the

switch is pressed. (



P.182, 187)

WARNING

■

When using the mechanical key and

operating the power windows

Operate the power window after check-

ing to make sure that there is no possibil-

ity of any passenger having any of their

body parts caught in the window.

Also, do not allow children to operate the

mechanical key. It is possible for children

and other passengers to get caught in

the power window.

Starting the engine <hybrid sys-
tem>

417

7-2. Steps to take in an emergency

When trouble

ari

ses

Use the mechanical key (



P.128) in

order to perform the following opera-
tions:

■

Locking and unlocking the doors



P.415

■

Opening the trunk

Slide the rear passengers’ seat
belts towards the outside.

Convertible: If the seat belt is secured

using the rear seat belt holder, remove it.

(



P.34)

Insert your fingers at the positions
marked

and pull towards you to

remove the cover in the center of
the rear seat.



Except Convertible



Convertible

Insert the mechanical key into the
cylinder and turn it clockwise to
open.



Except Convertible

If the 12-volt battery is dis-
charged

The following procedures may be
used to start the engine <hybrid sys-
tem> or opening the doors, trunk or
glove box if the 12-volt battery is
discharged.
You can also call your Lexus dealer
or a qualified repair shop.

Locking and unlocking the doors
and opening the trunk

418

7-2. Steps to take in an emergency



Convertible

The glove box can be opened by per-
forming the following operations after
unlocking the doors.

If the glove box is locked, unlock it with the
mechanical key. (



P.305)

Remove the cover using a flathead
screwdriver.

To prevent damage to the cover, cover the

tip of the screwdriver with a rag.

Push the flathead screwdriver into
the part shown in the illustration to
open the glove box.

■

After opening the glove box

The glove box can be opened normally by

closing the glove box after restarting the

engine <hybrid system>.

If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle using the following procedure.

Confirm that the electronic key
(including the card key) is being
carried.

When connecting the jumper (or booster)

cables, depending on the situation, the

alarm may activate and doors locked.

WARNING

■

After unlocking the trunk

Make sure to put back the cover to the

center of the rear seat. Failure to do so

may cause an accident.

NOTICE

■

When installing the cover in the cen-

ter of the rear seat

Make sure that the seat belts are not

caught in the cover. Failure to do so may

cause damage to the cover installation

clip and make it impossible to install the

cover.

Opening the glove box

Restarting the engine <hybrid
system>

419

7-2. Steps to take in an emergency

When trouble

ari

ses

(



P.96)

Open the hood (



P.337) and

open the fuse box cover.

Push the tab in and lift the lid off.



LC500



LC500h

Open the exclusive jump starting
terminal cover.



LC500



LC500h

Remove the engine cover.



LC500



LC500h

420

7-2. Steps to take in an emergency

Connect a positive jumper cable clamp to

on your vehicle and connect the

clamp on the other end of the positive cable to

on the second vehicle.

Then, connect a negative cable clamp to

on the second vehicle and con-

nect the clamp at the other end of the negative cable to

Use jumper cables that can reach the specified terminals and connecting point.



LC500



LC500h

Exclusive jump starting terminal (your vehicle)

Positive (+) battery terminal (second vehicle)

Negative (-) battery terminal (second vehicle)

Metallic point shown in the illustration

A
B
C
D

421

7-2. Steps to take in an emergency

When trouble

ari

ses

Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery of your
vehicle.

Open and close any of the door of
your vehicle with the engine switch
<power switch> off.

Maintain the engine speed of the
second vehicle and start the engine
<hybrid system> of your vehicle by
turning the engine switch <power
switch> to ON.

Once the vehicle’s engine <hybrid
system> has started, remove the
jumper cables in the exact reverse
order from which they were con-
nected.

Close the exclusive jump starting
terminal cover, and reinstall the
fuse box cover to its original posi-
tion.

Once the engine <hybrid system>
starts, have the vehicle inspected at
your Lexus dealer as soon as possible.

■

Starting the engine <hybrid system>

when the 12-volt battery is discharged

The engine <hybrid system> cannot be

started by push-starting.

■

To prevent 12-volt battery discharge

●

Turn off the headlights and the audio sys-

tem while the engine <hybrid system> is

stopped.

●

Turn off any unnecessary electrical com-

ponents when the vehicle is running at a

low speed for an extended period, such

as in heavy traffic.

■

When the 12-volt battery is removed or

discharged

●

Convertible: Side window open/close
function linked to door operation does
not operate.
When closing the side window, slowly
close the side window while pushing the
upper portion

of the side window

inside the soft top roof

●

Information stored in the ECU is cleared.

When the 12-volt battery is depleted,

have the vehicle inspected at your Lexus

dealer.

●

Some systems may require initialization.

(



P.470)

■

When removing the 12-volt battery ter-

minals

When the 12-volt battery terminals are

removed, the information stored in the

ECU is cleared. Before removing the 12-

volt battery terminals, contact your Lexus

dealer.

■

Charging the 12-volt battery

The electricity stored in the 12-volt battery

will discharge gradually even when the

vehicle is not in use, due to natural dis-

charge and the draining effects of certain

electrical appliances. If the vehicle is left for

a long time, the 12-volt battery may dis-

charge, and the engine <hybrid system>

may be unable to start. (The 12-volt battery

recharges automatically during driving.)

422

7-2. Steps to take in an emergency

■

When recharging or replacing the 12-

volt battery

●

Convertible: Immediately after replacing

the battery, fully open or close the soft

top roof, as the luggage cover may be

half-opened.

●

In some cases, it may not be possible to

unlock the doors using the smart access

system with push-button start when the

12-volt battery is discharged. Use the

wireless remote control or the mechani-

cal key to lock or unlock the doors.

●

The engine <hybrid system> may not start

on the first attempt after the 12-volt bat-

tery has recharged but will start normally

after the second attempt. This is not a

malfunction.

●

The engine switch <power switch> mode

is memorized by the vehicle. When the

12-volt battery is reconnected, the sys-

tem will return to the mode it was in

before the 12-volt battery was dis-

charged. Before disconnecting the 12-

volt battery, turn the engine switch

<power switch> off.

If you are unsure what mode the engine

switch <power switch> was in before the

12-volt battery discharged, be especially

careful when reconnecting the 12-volt

battery.

●

If the 12-volt battery discharges, it may

not be possible to shift the shift position to

other positions.

In this case, the vehicle cannot be towed

without lifting both rear wheels because

the rear wheels will be locked.

(



P.380)

■

When replacing the 12-volt battery

●

Use a Central Degassing type 12-volt

battery (European Regulations).

●

Type A

: Use a 12-volt battery that the

case size is same as the previous one

(LN4), 20 hour rate capacity (20HR) is

equivalent (80Ah) or greater, and per-

formance rating (CCA) is equivalent

(685A) or greater.
Type B

: Use a 12-volt battery that the

case size is same as the previous one

(LN3), 20 hour rate capacity (20HR) is

equivalent (70Ah) or greater, and per-

formance rating (CCA) is equivalent

(600A) or greater.

• If the sizes differ, the 12-volt battery can-

not be properly secured.

• If the 20 hour rate capacity is low, even if

the time period where the vehicle is not

used is a short time, the 12-volt battery

may discharge and engine <hybrid sys-

tem> may not be able to start.

●

Use a 12-volt battery with a handle. If a

12-volt battery without a handle is used,

removal is more difficult.

●

After exchanging, firmly attach the fol-

lowing items to the exhaust hole of the

12-volt battery.

• Use the exhaust hose that was attached

to the 12-volt battery before exchanging.

• Use the exhaust hole plug included with

the 12-volt battery exchanged or the one

installed on the battery prior to the

exchange. (Depending on the 12-volt

battery to be exchanged, the exhaust

hole may be plugged.)

Exhaust hole plug

Exhaust hole

Exhaust hose

For details, consult your Lexus dealer.

: LC500 for Canada or LC500 with

heated steering wheel

: LC500 except for Canada, LC500

without heated steering wheel or

423

7-2. Steps to take in an emergency

n t

ris

LC500h

WARNING

■

When removing the 12-volt battery

terminals

Always remove the negative (-) terminal

first. If the positive (+) terminal contacts

any metal in the surrounding area when

the positive (+) terminal is removed, a

spark may occur, leading to a fire in addi-

tion to electrical shocks and death or

serious injury.

■

Avoiding 12-volt battery fires or

explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the 12-

volt battery:

●

Make sure each jumper cable is con-

nected to the correct terminal and that

it is not unintentionally in contact with

any other than the intended terminal.

●

Do not allow the other end of the

jumper cable connected to the “+” ter-

minal to come into contact with any

other parts or metal surfaces in the

area, such as brackets or unpainted

metal.

●

Do not allow the + and - clamps of the

jumper cables to come into contact

with each other.

●

Do not smoke, use matches, cigarette

lighters or allow open flame near the

12-volt battery.

●

If the 12-volt battery fluid level is

excessively low (



P.349), do not use

the 12-volt battery.

■

12-volt battery precautions

The 12-volt battery contains poisonous

and corrosive acidic electrolyte, while

related parts contain lead and lead com-

pounds. Observe the following precau-

tions when handling the 12-volt battery:

●

When working with the 12-volt battery,

always wear safety glasses and take

care not to allow any 12-volt battery

fluids (acid) to come into contact with

skin, clothing or the vehicle body.

●

Do not lean over the 12-volt battery.

●

In the event that 12-volt battery fluid

comes into contact with the skin or

eyes, immediately wash the affected

area with water and seek medical

attention.

Place a wet sponge or cloth over the

affected area until medical attention

can be received.

●

Always wash your hands after han-

dling the 12-volt battery support, ter-

minals, and other battery-related

parts.

●

Do not allow children near the 12-volt

battery.

■

After recharging the 12-volt battery

Have the 12-volt battery inspected at

your Lexus dealer as soon as possible. If

the 12-volt battery is deteriorating, con-

tinued use may cause the 12-volt battery

to emit a malodorous gas, which may be

detrimental to the health of passengers.

■

When exchanging the 12-volt battery

After exchanging, securely attach the

exhaust hose and exhaust hole plug to

the exhaust hole of the exchanged 12-

volt battery. If not properly installed,

gases (hydrogen) may leak into the vehi-

cle interior, and there is the possible dan-

ger of the gas igniting and exploding.

NOTICE

■

When handling jumper cables

When connecting the jumper cables,

ensure that they do not become entan-

gled in the cooling fan or engine drive

belt.

424

7-2. Steps to take in an emergency



Two or more people are needed for
this procedure and some steps
requires a large force.



There is a possibility to damage the
vehicle when applying a strong
force or removing the parts. Lexus
recommends contacting your Lexus
dealer.

NOTICE

■

When connecting jumper cables

Make sure to connect jumper cables to

the specified terminals and connecting

point. Failure to do so may adversely

affect the electronic devices or damage

to them.

■

To prevent damaging the vehicle

The exclusive jump starting terminal is to

be used when charging the 12-volt bat-

tery from another vehicle in an emer-

gency. It cannot be used to jump start

another vehicle.

If the soft top roof cannot be
closed (Convertible)

If the soft top roof cannot be closed
even though the roof switch is oper-
ated, check that all the operational
conditions are met. (



P.161)

If all the operational conditions are
met and the soft top roof cannot be
closed, there may be a malfunction.
Immediately have the vehicle
inspected by your Lexus dealer.

When “Opening Function Unavail-
able System Overheated” or
“Function Temporarily Unavailable
System Overheated” is displayed
on the multi-information display, do
not close the soft top roof manually.
If the soft top roof is closed manu-
ally, the roof switch may not prop-
erly operates next time.

In this case, the soft top roof can be
closed by the following procedure
as an emergency measure, how-
ever, Lexus does not recommend it
as this procedure requires special-
ized knowledge.

Before closing the soft top roof

425

7-2. Steps to take in an emergency

When trouble

ari

ses



When touching a place where a
hand can not easily reach, wear
gloves to protect your hands.



Turn the engine switch off.



The tool for manually closing the
soft top roof is stored in the glove
box. (



P.305)

Tool bag

Tool

Groove

Press the All window control switch
to fully open the side windows and
rear quarter windows. (



P.156) If

the switch does not operate, con-
tact your Lexus dealer.

Remove the cover behind the rear
left seat.

Remove the claw on the left side
using the flathead screwdriver.

The flathead screwdriver is installed in the
trunk.

Remove the claw on the right side.

Tool

Closing the soft top roof

A
B
C

426

7-2. Steps to take in an emergency

Take out the yellow ring

from

the clamp

and pull it.

While pulling the yellow ring to
unlock the luggage cover, hold the
portions

of the luggage cover

and lift it to the rear of the vehicle
without tilting laterally.

If your hands are released while lifting the

luggage cover, the luggage cover may

shut, resulting in hands or arms being

caught between the cover and vehicle.
After lifting the luggage cover up, attach
the portion

between the red line and

root of the yellow ring to the clamp.

Insert the tool into the hole

the center of the back side of the
luggage cover.

Rotate the tool until it no longer
moves.

427

7-2. Steps to take in an emergency

When trouble

ari

ses

Rotate the tool again with applying more

force to check that the tool has been com-

pletely rotated.

Hold the both right and left portions

of the stored soft top roof

simultaneously.

Lift up the soft top roof without tilt-
ing laterally, move it to the front of
the vehicle, and close it.

After lifting up the soft top roof to the posi-

tion shown in the illustration, lower the

front part of the soft top roof holding the
lower part

of the rear window.

Remove the cover inside the soft
top roof using a flathead screw-
driver.

428

7-2. Steps to take in an emergency

Insert the tool into the hole

Rotate the tool until it no longer
moves.

The front side of the soft top roof will be

locked.

Push the inner side

of the soft top roof

to check that the soft top roof is firmly

locked and not raised.
If the soft top roof is not firmly locked, it

may be opened by wind pressure while

driving.

While lifting the portion

of the

under the rear window, hold the
portion

of the luggage cover

and move it to the front side of the
vehicle and close it.

When closing the luggage cover, be care-

ful that your hand or fingers is not caught in

the luggage cover and vehicle.

Lower the rear window and push
the rear center of the luggage
cover.

Check that there is no difference in height

between the luggage cover and trunk and

430

7-2. Steps to take in an emergency

Push the tool backward to a slant-
ing side at the rear of the vehicle
until it no longer moves.

A large force is required to move the tool.

The tool will move from the position

the position

in the illustration.

Turn the engine switch to ON and
check that “Soft Top Operation
Not Completed” is not displayed
on the multi-information display.

If the message is displayed, check the steps

and

have been completed.

Reinsert the parts that were
removed in the steps

and

The parts removed in the step

cannot be

used again and must be replaced at your

Lexus dealer.

■

Parts removed during the manual clos-

ing procedure

Keep any parts removed during the proce-

dure inside the vehicle and take all removed

parts and the vehicle to your Lexus dealer.

WARNING

■

When manually closing the soft top

roof

Observe the following precautions:

●

Stop the vehicle on a flat surface in a

safe place.

●

Set the parking brake and shift the shift

position to P.

●

Ensure that there are no occupants

inside the vehicle.

●

Do not perform this procedure while

there are strong winds blowing.

●

Turn the engine switch off.

●

Be careful not to catch any part of your

body or clothing in the moving parts.

●

Some parts of this procedure may

result in an injury if performed with

bare hands. Protect your hands with

gloves or a piece of cloth when per-

forming the procedure.

431

7-2. Steps to take in an emergency

When trouble

ari

ses

Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.

If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.

After the engine has cooled down
sufficiently, inspect the hoses and

radiator core (radiator) for any
leaks.

Radiator

Cooling fan

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

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

Reservoir

“F” line

“L” line

Coolant inlet cap

Add coolant if necessary.

Water can be used in an emergency if

If your vehicle overheats
(LC500)

The following may indicate that
your vehicle is overheating.



The engine coolant temperature
gauge (



P.106) is in the red

zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)



“Engine Coolant Temp High” is
shown on the multi-information
display.



Steam comes out from under the
hood.

Correction procedures

A
B

A
B
C
D

432

7-2. Steps to take in an emergency

coolant is unavailable.

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

The fan operates when the air conditioning

system is turned on immediately after a

cold start. Confirm that the fan is operating

by checking the fan sound and air flow. If it

is difficult to check these, turn the air con-

ditioning system on and off repeatedly.

(The fan may not operate in freezing tem-

peratures.)

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

■

When adding coolant

Add coolant in accordance with the follow-

ing procedure.

Remove the service cover.

Remove the engine cover.

Remove the caps

and

Add coolant through the inlet of the cap

up to the “F” line

, and then

replace the cap

Add coolant through the inlet of the cap

until it is full, and then replace the

cap .

WARNING

■

When inspecting under the hood of

your vehicle

Observe the following precautions.

Failure to do so may result in serious

injury such as burns.

●

If steam is seen coming from under the

hood, do not open the hood until the

steam has subsided. The engine com-

partment may be very hot.

433

7-2. Steps to take in an emergency

n t

ris



If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop in
a Safe Place See Owner’s Manual”
is shown on the multi-information
display

Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the hybrid system.

If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.

WARNING

●

Keep hands and clothing (especially a

tie, a scarf or a muffler) away from the

fan and belts. Failure to do so may

cause the hands or clothing to be

caught, resulting in serious injury.

●

While the engine and radiator are hot,

do not loosen or remove the coolant

inlet cap or coolant reservoir cap.

High temperature steam or coolant

could spray out.

NOTICE

■

When adding engine coolant

Add coolant slowly after the engine has

cooled down sufficiently. Adding cool

coolant to a hot engine too quickly can

cause damage to the engine.

■

To prevent damage to the cooling

system

Observe the following precautions:

●

Avoid contaminating the coolant with

foreign matter (such as sand or dust

etc.).

●

Do not use any coolant additive.

If your vehicle overheats
(LC500h)

The following may indicate that
your vehicle is overheating.



The engine coolant temperature
gauge (



P.106) is in the red

zone or a loss of hybrid system
power is experienced. (For exam-
ple, the vehicle speed does not
increase.)



“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” or “Hybrid System
Overheated Output Power
Reduced” is shown on the multi-
information display.



Steam comes out from under the
hood.

Correction procedures

434

7-2. Steps to take in an emergency

After the hybrid system has cooled
down sufficiently, inspect the hoses
and cooling system for leaks.

Radiator

Cooling fan

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

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

Reservoir

“F” line

“L” line

Coolant inlet cap

Add coolant if necessary.

Water can be used in an emergency if

engine coolant is unavailable.

Start the hybrid system and turn the
air conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.

The fan operates when the air conditioning

system is turned on immediately after a

cold start. Confirm that the fan is operating

by checking the fan sound and air flow. If it

is difficult to check these, turn the air con-

ditioning system on and off repeatedly.

(The fan may not operate in freezing tem-

peratures.)

If the fan is not operating:
Stop the hybrid system immediately
and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.



If “Hybrid System Overheated Out-
put Power Reduced” is shown on
the multi-information display

Stop the vehicle in a safe place.

Stop the hybrid system and care-
fully lift the hood.

A
B

A
B
C
D

435

7-2. Steps to take in an emergency

When trouble

ari

ses

After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiator) for any leaks.

Radiator

Cooling fan

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

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

Reservoir

“F”/“FULL” line

“L”/“LOW” line

Add coolant if necessary.

Water can be used in an emergency if

power control unit coolant is unavailable.

After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check if “Hybrid System Over-
heated Output Power Reduced” is
shown on the multi-information dis-
play.

If the message does not disappear:

Stop the hybrid system and contact your

Lexus dealer.
If the message is not displayed:

The hybrid system temperature has

dropped and the vehicle may be driven

normally.
However, if the message appears again

frequently, contact your Lexus dealer.

■

When adding engine coolant

Add coolant in accordance with the follow-

ing procedure.

Remove the service cover.

Remove the engine cover.

A
B

A
B
C

436

7-2. Steps to take in an emergency

Remove the caps

and

Add coolant through the inlet of the cap

up to the “F” line

, and then

replace the cap

Add coolant through the inlet of the cap

until it is full, and then replace the

cap .

WARNING

■

When inspecting under the hood of

your vehicle

Observe the following precautions.

Failure to do so may result in serious

injury such as burns.

●

If steam is seen coming from under the

hood, do not open the hood until the

steam has subsided. The engine com-

partment may be very hot.

●

After the hybrid system has been

turned off, check that the indicator on

the power switch and the “READY”

indicator are off.

When the hybrid system is operating,

the gasoline engine may automatically

start, or the cooling fan may suddenly

operate even if the gasoline engine

stops. Do not touch or approach rotat-

ing parts such as the fan, which may

lead to fingers or clothing (especially a

tie, a scarf or a muffler) getting caught,

resulting in serious injury.

●

Do not loosen the coolant inlet cap or

coolant reservoir caps while the hybrid

system and radiator are hot.

High temperature steam or coolant

could spray out.

NOTICE

■

When adding engine/power control

unit coolant

Add coolant slowly after the hybrid sys-

tem has cooled down sufficiently. Adding

cool coolant to a hot hybrid system too

quickly can cause damage to the hybrid

system.

■

To prevent damage to the cooling

system

Observe the following precautions:

●

Avoid contaminating the coolant with

foreign matter (such as sand or dust

etc.).

●

Do not use any coolant additive.

437

7-2. Steps to take in an emergency

n t

ris

Stop the engine <hybrid system>.
Set the parking brake and shift the
shift position to P.

Remove the mud, snow or sand
from around the rear wheels.

Place wood, stones or some other
material under the rear wheels to
help provide traction.

Restart the engine <hybrid system>.

Shift the shift position to D or R and
release the parking brake. Then,
while exercising caution, depress
the accelerator pedal.

■

When it is difficult to free the vehicle

Press the

switch to turn off TRAC.

If the vehicle becomes stuck

Carry out the following procedures
if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:

Recovering procedure

WARNING

■

When attempting to free a stuck vehi-

cle

If you choose to push the vehicle back

and forth to free it, make sure the sur-

rounding area is clear to avoid striking

other vehicles, objects or people. The

vehicle may also lunge forward or lunge

back suddenly as it becomes free. Use

extreme caution.

■

When shifting the shift position

Be careful not to shift the shift position

with the accelerator pedal depressed.

This may lead to unexpected rapid accel-

eration of the vehicle that may cause an

accident resulting in death or serious

injury.

NOTICE

■

To avoid damaging the transmission

and other components

●

Avoid spinning the rear wheels and

depressing the accelerator pedal

more than necessary.

●

If the vehicle remains stuck even after

these procedures are performed, the

vehicle may require towing to be

freed.

440

8-1. Specifications

8-1.Specifications

: Unladen vehicle

■

Vehicle identification number

The vehicle identification number
(VIN) is the legal identifier for your
vehicle. This is the primary identifica-
tion number for your Lexus. It is used in
registering the ownership of your vehi-
cle.
This number is stamped on the top left
of the instrument panel.

This number is also stamped under the
right-hand front seat.

Maintenance data (fuel, oil level, etc.)

Dimensions and weight

Overall length

187.4 in. (4760 mm)

Overall width

75.6 in. (1920 mm)

Overall height

Except Convertible

53.0 in. (1345 mm)

Convertible

53.1 in. (1350 mm)

Wheelbase

113.0 in. (2870 mm)

Tread

Front

64.2 in. (1630 mm)

Rear

64.4 in. (1635 mm)

Vehicle capacity weight
(Occupants + luggage)

720 lb. (325 kg)

Seating capacity

4 (Front 2, Rear 2)

Vehicle identification

441

8-1. Specifications

Vehi

cle

spec

ifi

tions

This number is also on the Certification
Label.



Except Convertible



Convertible

■

Engine number

The engine number is located as
shown.



LC500



LC500h



LC500

Engine

Model

5.0 L 8-cylinder (2UR-GSE) engine

Type

8-cylinder V type, 4-cycle, gasoline

Bore and stroke

3.70



3.52 in. (94.0



89.5 mm)

442

8-1. Specifications



LC500h

Displacement

303.2 cu.in. (4969 cm

)

Drive belt tension

Automatic adjustment

Model

3.5 L 6-cylinder (8GR-FXS) engine

Type

6-cylinder V type, 4-cycle, gasoline

Bore and stroke

3.70



3.27 in. (94.0



83.0 mm)

Displacement

210.9 cu.in. (3456 cm

)

Drive belt tension

Automatic adjustment

Fuel

Fuel type

Unleaded gasoline only

Octane Rating

91 (Research Octane Number 96) or
higher

Fuel tank capacity
(Reference)

LC500

21.7 gal. (82.0 L, 18.0 Imp.gal.)

LC500h

22.2 gal. (84.0 L, 18.5 Imp.gal.)

Electric motor (traction motor) (LC500h)

Type

Permanent magnet synchronous motor

Maximum output

131.9 kW

Maximum torque

221.3 ft•lbf (300 N•m, 30.6 kgf•m)

Hybrid battery (traction battery) (LC500h)

Type

Lithium-ion battery

Voltage

3.7 V/cell

Capacity

4.3 Ah

Quantity

84 cells

Nominal voltage

310.8 V

Lexus LC500C (2024 year). Manual in english - page 13