Lexus LS500h (2023 year). Manual in english

440

6-3. Do-it-yourself maintenance

Take out the mechanical key.

Remove the cover.

To prevent damage to the key, cover the tip

of the flathead screwdriver with a tape.

Remove the depleted battery.

Insert a new battery with the “+” terminal

facing up.

Replacing the battery

WARNING

■

Battery precautions

Observe the following precautions.Fail-

ure to do so may result in death or seri-

ous injury.

●

Do not swallow the battery. Doing so

may cause chemical burns.

●

A coin battery or button battery is

used in the electronic key. If a battery is

swallowed, it may cause severe chemi-

cal burns in as little as 2 hours and may

result in death or serious injury.

●

Keep away new and removed batteries

from children.

●

If the cover cannot be firmly closed,

stop using the electronic key and stow

the key in the place where children

cannot reach, and then contact your

Lexus dealer.

●

If you accidentally swallow a battery or

put a battery into a part of your body,

get emergency medical attention

immediately.

■

To prevent battery explosion or leak-

age of flammable liquid or gas

●

Replace the battery with a new battery

of the same type. If a wrong type of

battery is used, it may explode.

●

Do not expose batteries to extremely

low pressure due to high altitude or

extremely high temperatures.

●

Do not burn, break or cut a battery.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of appropri-

ate size. Applying excessive force may

deform or damage the cover.

441

6-3. Do-it-yourself maintenance

Mai
nte

e a

are

Turn the power switch off.

Open the fuse box cover.



Engine compartment: type A fuse
box (vehicles without Lexus Team-
mate Advanced Park)

Push the tabs in and lift the lid off.



Engine compartment: type A fuse
box (vehicles with Lexus Teammate
Advanced Park)

Push the tabs in and lift the lid off.

NOTICE

■

For normal operation after replacing

the battery

Observe the following precautions to

prevent accidents:

●

Always work with dry hands.

Moisture may cause the battery to

rust.

●

Do not touch or move any other com-

ponent inside the remote control.

●

Do not bend either of the battery ter-

minals.

Checking and replacing
fuses

If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.

Checking and replacing fuses

442

6-3. Do-it-yourself maintenance



Engine compartment: type B fuse
box

Remove the engine compartment cover
(



P.412) and push the tabs in and lift the

lid off.



Driver’s side instrument panel

Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.



Passenger’s side instrument panel

Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.



Trunk

Remove the luggage mat. (



P.376)

Push the tab in and lift the lid off.

Remove the fuse with the pullout
tool.
Only type A fuse can be removed
using the pullout tool.

Check if the fuse is blown.

Type A and B:

443

6-3. Do-it-yourself maintenance

Mai
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e a

are

Replace the blown fuse with a new fuse of

an appropriate amperage rating. The

amperage rating can be found on the fuse

box lid.
Type C and D:

Contact your Lexus dealer.



Type A

Normal fuse
Blown fuse



Type B

Normal fuse
Blown fuse



Type C

Normal fuse
Blown fuse



Type D

Normal fuse
Blown fuse

■

After a fuse is replaced

●

When installing the lid, make sure that the

tab is installed securely.

●

If the lights do not turn on even after the

fuse has been replaced, a bulb may need

replacement.

●

If the replaced fuse blows again, have the

vehicle inspected by your Lexus dealer.

■

If there is an overload in a circuit

The fuses are designed to blow, protecting

the wiring harness from damage.

WARNING

■

To prevent system breakdowns and

vehicle fire

Observe the following precautions.

Failure to do so may cause damage to

the vehicle, and possibly a fire or injury.

●

Never use a fuse of a higher amperage

rating than that indicated, or use any

other object in place of a fuse.

●

Always use a genuine Lexus fuse or

equivalent.

Never replace a fuse with a wire, even

as a temporary fix.

444

6-3. Do-it-yourself maintenance

Adjustment bolt A
Adjustment bolt B

Make sure the vehicle has a full
tank of gasoline and the area
around the headlight is not
deformed.

Park the vehicle on level ground.

Sit in the driver’s seat.

Bounce the vehicle several times.

Using a phillips-head screwdriver,
turn bolt A in either direction.

Remember the turning direction and the

WARNING

●

Do not modify the fuses or fuse boxes.

NOTICE

■

Before replacing fuses

Have the cause of electrical overload

determined and repaired by your Lexus

dealer as soon as possible.

Headlight aim

Vertical movement adjusting
bolts

Before checking the headlight
aim

Adjusting the headlight aim

445

6-3. Do-it-yourself maintenance

Mai
nte

e a

are

number of turns.

Turn bolt B the same number of
turns and in the same direction as
step

If the headlight cannot be adjusted using

this procedure, take the vehicle to your

Lexus dealer to adjust the headlight aim.

■

LED Lights

The lights consist of a number of LEDs. If

any of the LEDs burn out, take your vehicle

to your Lexus dealer to have the light

replaced.

■

Condensation build-up on the inside of

the lens

Temporary condensation build-up on the

inside of the headlight lens does not indi-

cate a malfunction. Contact your Lexus

dealer for more information in the following

situations:

●

Large drops of water have built up on the

inside of the lens.

●

Water has built up inside the headlight.

Light bulbs

If any lights burn out, have it
replaced by your Lexus dealer.

447

When trouble

ari

ses

When trouble arises

7-1. Essential information

Emergency flashers..................

448

If your vehicle has to be stopped in

an emergency..........................

448

If the vehicle is submerged or

water on the road is rising ..

449

7-2. Steps to take in an emergency

If your vehicle needs to be towed

.........................................................

451

If you think something is wrong

........................................................

455

If a warning light turns on or a

warning buzzer sounds .......

457

If a warning message is displayed

........................................................

467

If you have a flat tire..................

470

If the hybrid system will not start

.........................................................

471

If you lose your keys.................

473

If the fuel filler door cannot be

opened........................................

473

If the electronic key does not

operate properly ....................

474

If the 12-volt battery is discharged

........................................................

476

If your vehicle overheats ........

483

If the vehicle becomes stuck

........................................................

486

448

7-1. Essential information

7-1.Essential information

Press the switch to flash all of the turn
signal lights.

To turn them off, press the switch once
again.

■

Emergency flashers

●

If the emergency flashers are used for a

long time while the hybrid system is not

operating (while the “READY” indicator

is not illuminated), the 12-volt battery may

discharge.

●

If any of the SRS airbags deploy (inflate)

or in the event of a strong rear impact, the

emergency flashers will turn on automati-

cally.

The emergency flashers will turn off auto-

matically after operating for approxi-

mately 20 minutes. To manually turn the

emergency flashers off, press the switch

twice.

(The emergency flashers may not turn on

automatically depending on the force of

the impact and conditions of the colli-

sion.)

Steadily step on the brake pedal
with both feet and firmly depress it.

Do not pump the brake pedal repeatedly

as this will increase the effort required to

slow the vehicle.

Shift the shift position to N.



If the shift position is shifted to N

After slowing down, stop the vehi-
cle in a safe place by the road.

Stop the hybrid system.



If the shift position cannot be shifted
to N

Keep depressing the brake pedal
with both feet to reduce vehicle
speed as much as possible.

To stop the hybrid system, press
and hold the power switch for 2
consecutive seconds or more, or

Emergency flashers

The emergency flashers are used to
warn other drivers when the vehicle
has to be stopped on the road due
to a breakdown, etc.

Operating instructions

If your vehicle has to be
stopped in an emergency

Only in an emergency, such as if it
becomes impossible to stop the
vehicle in the normal way, stop the
vehicle using the following proce-
dure:

Stopping the vehicle

449

7-1. Essential information

n t

ris

press it briefly 3 times or more in
succession.

Stop the vehicle in a safe place by
the road.



If the door can be opened, open the
door and exit the vehicle.



If the door cannot be opened, open
the window using the power window
switch and ensure an escape route.



If the window can be opened, exit
the vehicle through the window.



If the door and window cannot be
opened due to the rising water,
remain calm, wait until the water
level inside the vehicle rises to the
point that the water pressure inside
of the vehicle equals the water pres-
sure outside of the vehicle and then
open the door after waiting for the
rising water to enter the vehicle, and
exit the vehicle. When the outside
water level exceeds half the height
of the door, the door cannot be
opened from the inside due to water
pressure.

■

Water level exceeds the floor

When the water level exceeds the floor and

time has passed, the electrical equipment

will get damaged, the power windows will

WARNING

■

If the hybrid system has to be turned

off while driving

Power assist for the steering wheel will

be lost, making the steering wheel

heavier to turn. Decelerate as much as

possible before turning off the hybrid sys-

tem.

If the vehicle is submerged
or water on the road is rising

This vehicle is not designed to be
able to drive on roads that are
deeply flooded with water. Do not
drive on roads where the roads may
be submerged or the water may be
rising. It is dangerous to remain in
the vehicle, if it anticipated that the
vehicle will be flooded or set a drift.
Remain calm and follow the follow-
ing.

451

7-2. Steps to take in an emergency

n t

ris

7-2.Steps to take in an emergency

If your vehicle needs to be
towed

If towing is necessary, we recom-
mend having your vehicle towed by
your Lexus dealer or commercial
towing service, using a wheel-lift
type truck or flatbed truck.

Use a safety chain system for all
towing, and abide by all state/pro-
vincial and local laws.

If towing your vehicle with a
wheel-lift type truck from the front,
the vehicle’s rear wheels and axles
must be in good conditions.
(



P.451, 453) If they are dam-

aged, use a towing dolly or flatbed
truck.

For AWD models: If towing your
vehicle with a wheel-lift type truck,
use a towing dolly. (



P.451, 453)

WARNING

Observe the following precautions.

Failure to do so may result in death or

serious injury.

■

When towing the vehicle



2WD models

Be sure to transport the vehicle with all

four wheels raised off the ground. If the

vehicle is towed with the tires contacting

the ground, the drivetrain and related

parts may be damaged, an accident may

occur due to a change in direction of the

vehicle or electricity generated by the

operation of the motor may cause a fire

to occur depending on the nature of the

damage or malfunction.

452

7-2. Steps to take in an emergency

WARNING



AWD models

Be sure to transport the vehicle with all

four wheels raised off the ground. If the

vehicle is towed with the tires contacting

the ground, the drivetrain or related

parts may be damaged, the vehicle may

fly off the truck, or electricity generated

by the operation of the motor may cause

a fire to occur depending on the nature

of the damage or malfunction.

■

While towing

●

When towing using cables or chains,

avoid sudden starts, etc. which place

excessive stress on the towing eyelets,

cables or chains. The towing eyelets,

cables or chains may become dam-

aged, broken debris may hit people,

and cause serious damage.

●

Make sure to disable all functions of

the vehicle height control of the elec-

tronically modulated air suspension.

Otherwise, the vehicle height may

change and part of your body may be

caught under the vehicle, possibly

causing injury. (



P.336)

●

Do not perform any of the following as

doing so may cause the parking lock

mechanism to engage, locking the

rear wheels and possibly leading to an

accident resulting in death or serious

injury:

• Unfasten the driver’s seat belt and

open the driver’s door.

• Turn the power switch off.

■

Installing towing eyelets to the vehi-

cle

Make sure that towing eyelets are

installed securely.

If not securely installed, towing eyelets

may come loose during towing.

NOTICE

■

To prevent damage to the vehicle

when towing using a wheel-lift type

truck

When raising the vehicle, ensure ade-

quate ground clearance for towing at the

opposite end of the raised vehicle. With-

out adequate clearance, the vehicle

could be damaged while being towed.

■

To prevent damage to the vehicle

when towing with a sling-type truck

Do not tow with a sling-type truck, either

from the front or rear.

■

To prevent damage to the vehicle

during emergency towing

Do not secure cables or chains to the

suspension components.

■

Recreational towing (behind motor

home, etc.) (AWD models)

Never dinghy tow your vehicle to pre-

vent causing serious damage to the

AWD system and transmission.

(



P.168)

453

7-2. Steps to take in an emergency

n t

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In the following situations, it is not pos-
sible to be towed by another vehicle
using cables or chains, as the rear
wheels may be locked due to the park-
ing lock. Contact your Lexus dealer or
commercial towing service.



There is a malfunction in the shift
control system. (



P.173, 467)



There is a malfunction in the immo-
bilizer system. (



P.72)



There is a malfunction in the smart
access system with push-button
start. (



P.474)



The 12-volt battery is discharged.
(



P.476)

The following may indicate a problem
with your transmission. Contact your
Lexus dealer or commercial towing
service before towing.



The hybrid system warning message
is shown on the multi-information
display and the vehicle does not

move.



The vehicle makes an abnormal
sound.



From the front

Use a towing dolly under the rear
wheels.



From the rear

Use a towing dolly under the front
wheels.

NOTICE

Situations when it is not possible
to be towed by another vehicle

Situations when it is necessary to
contact dealers before towing

Towing with a wheel-lift type
truck

NOTICE

■

Towing with a sling-type truck

Do not tow with a sling-type truck to pre-

vent body damage.

454

7-2. Steps to take in an emergency

When using a flat-bed truck to trans-
port the vehicle, use tire strapping
belts. Refer to the owner’s manual of
the flat-bed truck for the tire strapping
method.
In order to suppress vehicle movement
during transportation, set the parking
brake and turn the power switch off.

If a tow truck is not available in an
emergency, your vehicle may be tem-
porarily towed using cables or chains
secured to the emergency towing eye-
lets. This should only be attempted on
hard surfaced roads for short distances
at under 18 mph (30 km/h).
A driver must be in the vehicle to steer
and operate the brakes. The vehicle’s
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.

NOTICE

Using a flatbed truck

Emergency towing

Emergency towing procedure

455

7-2. Steps to take in an emergency

When trouble

ari

ses

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 hybrid system.

If the hybrid system does not start, turn the

power switch to ON mode.

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

Turn automatic mode off. (



P.184)

■

While towing

If the hybrid system is off, the power assist

for the brakes and steering will not function,

making steering and braking more difficult.

■

Wheel nut wrench

Wheel nut wrench can be purchased at

your Lexus dealer.



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
continually points higher than nor-
mal.



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 hybrid system



Engine missing, stumbling or run-
ning roughly



Appreciable loss of power



Vehicle pulls heavily to one side
when braking

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

457

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Brake system warning light (warning buzzer)

■

Brake system warning light (warning buzzer)

■

High coolant temperature warning light

(warning buzzer)

: This light illuminates on the multi-information display.

If a warning light turns on or a warning buzzer sounds

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

Actions to the warning lights or warning buzzers

Warning light

Details/Actions

(U.S.A.)

(red)

(Canada)

Indicates that:



The brake fluid level is low; or



The brake system is malfunctioning



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

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 regenerative braking system;



The electronically controlled brake system; or



The electric parking brake



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.483)

458

7-2. Steps to take in an emergency

■

Hybrid system overheat warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Charging system warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Low traction battery 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.

Warning light

Details/Actions

Indicates the hybrid system has overheated



Stop the vehicle in a safe place.
Handling method (



P.484)

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 charge of the hybrid battery (traction battery) has
become low due to the shift position being left in N for a long time



As the hybrid battery (traction battery) cannot be charged with the
N shift position selected, when stopping the vehicle for a long
period of time, shift the shift position to P.



If the “READY” indicator is not illuminated, shift the shift position to
P and restart the hybrid system.

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.

459

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Malfunction indicator lamp (warning buzzer)

■

SRS warning light (warning buzzer)

■

Pop Up Hood warning light (warning buzzer)

■

ABS warning light (warning buzzer)

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The hybrid system;



The electronic engine control system;



The electronic throttle control system; or



The electronic hybrid 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.

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.

460

7-2. Steps to take in an emergency

■

Inappropriate pedal operation warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Electric power steering system warning light (warning buzzer)

■

Low fuel level warning light

Warning light

Details/Actions

When a buzzer sounds:
Indicates a malfunction in:



The Brake Override System



The Drive-Start Control



Have the vehicle inspected by your Lexus dealer immediately.

Indicates that the shift position was changed and Drive-Start Control
was operated while depressing the accelerator pedal.



Momentarily release the accelerator pedal.

Indicates that the Parking Support Brake function (static object) is oper-
ating.



Follow the instructions displayed on the multi-information display.

When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being depressed
simultaneously, and the Brake Override System is operating.



Release the accelerator pedal and depress the brake pedal.

Warning light

Details/Actions

(red)

(yellow)

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



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates that remaining fuel is approximately 3.4 gal. (13 L, 2.8 Imp.
gal.) or less



Refuel the vehicle.

461

7-2. Steps to take in an emergency

When trouble

ari

ses

■

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

■

Rear passengers’ seat belt reminder lights (warning buzzer)

: 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.

■

Tire pressure warning light

Warning light

Details/Actions

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



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

Warning light

Details/Actions

Warns the rear passengers to fasten their seat belts



Fasten the seat belt.

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.465)

462

7-2. Steps to take in an emergency

■

LTA indicator (warning buzzer)

■

Intuitive parking assist OFF indicator (warning buzzer)

■

RCD OFF indicator (warning buzzer)

■

PKSB OFF indicator (warning buzzer)

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, 250)

Warning light

Details/Actions

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.282)

Warning light

Details/Actions

(flashes or illumi-

nates)

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



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



P.295, 467)

Warning light

Details/Actions

(flashes or illumi-

nates)

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
asensor being dirty or covered with ice, etc.



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



P.301, 467)

463

7-2. Steps to take in an emergency

When trouble

ari

ses

■

PCS warning light

■

Slip indicator

■

Parking brake indicator (warning buzzer)

Warning light

Details/Actions

(flashes or illumi-

nates)

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



Have the vehicle inspected by your Lexus dealer immediately.

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



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



P.203, 208, 468)

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



P.222, 233

Warning light

Details/Actions

Indicates a malfunction in:



The VSC system;



The TRAC system; or



The hill-start assist control system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(flashes)

(U.S.A.)

(flashes)

(Canada)

Indicates a malfunction in the parking brake system



Have the vehicle inspected by your Lexus dealer immediately.

464

7-2. Steps to take in an emergency

■

Brake hold operated indicator (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 (if equipped), front impact

sensors, side impact sensors (front door),

side impact sensors (front), side impact sen-

sors (rear), driver’s seat belt buckle switch,

front passenger occupant classification sys-

tem (ECU and sensors), rear seat belt

buckle switches (if equipped), “AIR BAG

ON” indicator light, “AIR BAG OFF” indi-

cator light, front passenger’s seat belt

buckle switch, seat belt pretensioners, air-

bags, interconnecting wiring and power

sources. (



P.31)

■

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

possible.

■

Electric power steering system warning

light (warning buzzer)

When the 12-volt 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.

■

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.470

If none of the tires are punctured:

Turn the power switch off then turn it to 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.425)

■

The tire pressure warning light may

come on due to natural causes

The tire pressure warning light may come

on due to natural causes such as natural air

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle inspected by your Lexus dealer immediately.

465

7-2. Steps to take in an emergency

n t

ris

leaks and tire inflation pressure changes

caused by temperature. In this case, adjust-

ing the tire inflation pressure will turn off the

warning light (after a few minutes).

■

Conditions that the tire pressure warn-

ing system may not function properly



P.423

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.

●

Avoid abrupt maneuvering and brak-

ing.

If the vehicle tires deteriorate, you

could lose control of the steering

wheel or the brakes.

WARNING

■

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.

466

7-2. Steps to take in an emergency

■

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 “Hybrid System Stopped Steering

Power Low” is displayed

This message is displayed if the hybrid sys-

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.

If a warning message is dis-
played

The multi-information display
shows warnings for system malfunc-
tions and incorrectly performed
operations, and messages that indi-
cate a need for maintenance.
When a message is displayed, per-
form the appropriate corrective
action for the message.
If a warning message is displayed
again after the appropriate actions
have been performed, contact your
Lexus dealer.
Additionally, if a warning light
comes on or flashes at the same
time that a warning message is dis-
played, take the appropriate cor-
rective action for the warning light.
(



P.457)

467

7-2. Steps to take in an emergency

When trouble

ari

ses

tem 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 “Hybrid System Overheated Output

Power Reduced” is displayed

This message may be displayed when driv-

ing under severe operating conditions. (For

example, when driving up a long steep hill.)

Handling method:



P.483

■

If “Warming Up Maximum Vehicle

Speed: 65 MPH” is displayed

The transmission is being warmed up and

the vehicle is unable to be driven over 65

mph (110 km/h). Wait until the transmission

warms up.

■

If “Stop the Vehicle in a Safe Place Shift

to P position” is displayed

There may be a malfunction in the hybrid

system or the shift position may be shifted to

N for a long time. Immediately stop the

vehicle and contact your Lexus dealer.

■

If “Traction Battery Needs to be Pro-

tected Refrain From the Use of N Posi-

tion” is displayed

This message may be displayed when the

shift position is in N.
As the hybrid battery (traction battery) can-

not be charged when the shift position is in

N, shift the shift position to P when the vehi-

cle is stopped.

■

If “Traction Battery Needs to be Pro-

tected Shift into P to Restart” is dis-

played

This message is displayed when the hybrid

battery (traction battery) charge has

become extremely low because the vehicle

has been left with the N shift position

selected for a certain amount of time.
When operating the vehicle, shift to P and

restart the hybrid system.

■

If “Shift Is in N Release Accelerator

Before Shifting” is displayed

The accelerator pedal has been depressed

when the shift position is in N.
Release the accelerator pedal and shift the

shift position to D or R.

■

If “Depress Brake When Vehicle Is

Stopped Hybrid System May Overheat”

is displayed

The message may be displayed when the

accelerator pedal is depressed to hold the

vehicle while the vehicle is stopped on an

incline, etc. The hybrid system may over-

heat. Release the accelerator pedal and

depress the brake pedal.

■

If “Auto Power Off to Conserve Battery”

is displayed

Power was turned off due to the automatic

power off function. Next time when starting

the hybrid system, operate the hybrid sys-

tem for approximately 5 minutes to

recharge the 12-volt 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.203, 208)

■

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

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.203, 208, 463)

●

PCS (Pre-Collision system)

●

LTA (Lane Tracing Assist)

468

7-2. Steps to take in an emergency

●

AHB (Automatic High Beam)

●

RSA (Road Sign Assist) (if equipped)

●

Dynamic radar cruise control with

full-speed range

■

If a message that indicates the malfunc-

tion of radar sensor is displayed

The following systems may be suspended

until the problem shown in the message is

resolved. (



P.203, 208, 463)

●

PCS (Pre-Collision system)

●

LTA (Lane Tracing Assist)

●

Dynamic radar cruise control with

full-speed range

■

If “Maintenance Required Soon” is dis-

played

Indicates that all maintenance according to

the driven distance on the maintenance
schedule

should be performed soon.

Comes on approximately 4500 miles

(7200 km) after the message has been

reset. If necessary, perform maintenance.

Please reset the message after the mainte-

nance is performed. (



P.402)

: Refer to the separate “Scheduled Main-

tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.

■

If “Maintenance Required Visit Your

Dealer” is displayed

Indicates that all maintenance is required to

correspond to the driven distance on the
maintenance schedule

Comes on approximately 5000 miles

(8000 km) after the message has been

reset. (The indicator will not work properly

unless the message has been reset.) Per-

form the necessary maintenance. Please

reset the message after the maintenance is

performed. (



P.402)

: Refer to the separate “Scheduled Main-

tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.

■

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.414)

■

If “Oil Maintenance Required” is dis-

played

Indicates that the engine oil should be

changed.
Check and change the engine oil, and oil fil-

ter by your Lexus dealer. After changing the

engine oil, make sure to reset the message.

(



P.414)

■

If “Shift System Malfunction Shifting

Unavailable Drive to a Safe Place and

Stop” or “Shift System Malfunction

Driving Unavailable” is displayed

There is a malfunction in the shift control

system. Have the vehicle inspected by your

Lexus dealer immediately.

■

If a message that indicates the need for

the shift lever operation is displayed

To prevent the shift lever from being oper-

ated incorrectly or the vehicle from moving

unexpectedly, a message that requires shift-

ing the shift position may be displayed on

the multi-information display. In that case,

follow the instruction of the message and

shift the shift position.

■

If a message regarding Advanced Drive

is displayed

Refer to “Lexus Teammate Advanced Drive

OWNER’S MANUAL” at Lexus.com for

details.

■

If a message that indicates the need for

visiting your Lexus dealer is displayed

The system or part shown on the

multi-information display is malfunctioning.

Have the vehicle inspected by your Lexus

dealer immediately.

■

If a message that indicates the need for

referring to Owner’s Manual is dis-

played

●

If any of the following messages are

shown on the multi-information display,

469

7-2. Steps to take in an emergency

n t

ris

follow the instructions.

• “Engine Coolant Temp High” (



P.483)

• “Battery Low” (



P.476)

• “Transmission Fluid Temp High” (



P.175)

●

If any of the following messages are

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 Malfunc-

tion”

• “Hybrid System Malfunction”

• “Check Engine”

• “Hybrid Battery System Malfunction”

• “Accelerator System Malfunction”

• “Shift System Malfunction Apply Parking

Brake Securely When Parking See

Owner's Manual”

• “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 Manual”

• “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 are

shown on the multi-information display, it

may indicate a malfunction. Immediately

stop the vehicle and contact your Lexus

dealer.

• “Braking Power Low”

• “Charging System Malfunction”

• “Oil Pressure Low”

●

If any of the following messages are

shown on the multi-information display,

the vehicle may have run out of fuel. Stop

the vehicle in a safe place and, if the fuel

level is low, refuel the vehicle. (



P.67)

• “Hybrid System Stopped”

• “Engine Stopped”

●

If “Maintenance Required for Traction

Battery Cooling Parts” is shown, the fil-

ters may be clogged, the air intake vents

may be blocked, or there may be a gap in

the duct. Therefore, perform the follow-

ing correction procedure.

• Cleaning the hybrid battery (traction bat-

tery) air intake vents (



P.437)

If the warning message is shown even if

the vents are cleaned, have the vehicle

inspected by your Lexus dealer.

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 12-volt bat-

tery may be deteriorating. Have the vehi-

cle inspected by your Lexus dealer.

■

If “Have Traction Battery Inspected”

is displayed

This message indicates that the hybrid

battery (traction battery) may require

inspection or replacement. Have the

vehicle inspected by your Lexus dealer

immediately.

Do not continue driving the vehicle, as

the hybrid system may become not able

to be started again.

470

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.



For XXX/XXRXX size tires

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



P.462)



For XXX/XXRFXX size tires

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.462)

A run-flat tire has a

mark

on the side wall.

■

In some conditions (such as at high tem-

peratures)

For XXX/XXRXX size tires: You cannot

continue driving for up to 80 miles (50

km).
For XXX/XXRFXX size tires: You cannot

continue driving for up to 160 miles (100

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 damage to 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 trans-

mitter when replacing the tire. (



P.424)

471

7-2. Steps to take in an emergency

When trouble

ari

ses

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



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



P.474)



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



There may be a malfunction in the
immobilizer system. (



P.72)



There may be a malfunction in the
shift control system.

(



P.173, 469)



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.472)



There is a possibility that the tem-
perature of the hybrid battery (trac-
tion battery) is extremely low
(approximately below -22°F
[-30°C]). (



P.169)

: It may not be possible to shift the shift

position from P.

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



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



P.476)



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



P.418)

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



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



P.418)



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



P.476)

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

If the hybrid system will not
start

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.
(



P.169)

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

Lexus LS500h (2023 year). Manual in english - page 14