Lexus LS (2023 year). Manual in english

482

6-3. Do-it-yourself maintenance



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 any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

■

If there is an overload in a circuit

The fuses are designed to blow, protecting

the wiring harness from damage.

A
B

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.

●

Do not modify the fuses or fuse boxes.

A
B

483

6-3. Do-it-yourself maintenance

Ma
inte
na

e and care

■

LED Lights

The lights consist of a number of LEDs. If

any of the LEDs burn out, take your vehicle

to any authorized Lexus retailer or Lexus

authorized repairer, or any reliable repairer

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 any authorized

Lexus retailer or Lexus authorized repairer,

or any reliable repairer for more informa-

tion in the following situations:

●

Large drops of water have built up on the

inside of the lens.

●

Water has built up inside the headlight.

NOTICE

■

Before replacing fuses

Have the cause of electrical overload

determined and repaired by any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer as soon

as possible.

Light bulbs

If any lights burn out, have it
replaced by any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer.

485

When trouble

ises

When trouble arises

7-1. Essential information

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

486

If your vehicle has to be stopped in

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

486

If the vehicle is submerged or

water on the road is rising ..

487

7-2. Steps to take in an emergency

If your vehicle needs to be towed

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

489

If you think something is wrong

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

493

If a warning light turns on or a

warning buzzer sounds .......

495

If a warning message is displayed

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

505

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

508

If the hybrid system will not start

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

509

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

511

If the fuel filler door cannot be

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

511

If the electronic key does not

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

512

If the 12-volt battery is discharged

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

514

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

522

If the vehicle becomes stuck

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

526

486

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

487

7-1. Essential information

When trouble

ises

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

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 heav-

ier to turn. Decelerate as much as possi-

ble before turning off the hybrid system.

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.

488

7-1. Essential information

time has passed, the electrical equipment

will get damaged, the power windows will

not operate, the engine and motor stop, and

the vehicle may not be able to get moving.

■

Using an emergency escape hammer

Laminated glass is used in the windshield

and the windows on this vehicle. Laminated

glass cannot be shattered with an emer-
gency hammer

: Contact your Lexus dealer or

aftermarket accessory manufacturer for
further information about an emergency
hammer.

WARNING

■

Caution while driving

Do not drive on roads where the roads

may be submerged or the water may be

rising. Otherwise the vehicle may be

damaged and cannot move, as well as

become flooded and set a drift, which

may lead to death.

489

7-2. Steps to take in an emergency

When trouble

ises

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
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer 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.489, 491) 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.489, 491)

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.

490

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.376)

●

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

●

Do not tow the vehicle from the rear

when the power switch is off. The

steering lock mechanism (if equipped)

is not strong enough to hold the front

wheels straight.

●

When raising the vehicle, ensure ade-

quate ground clearance for towing at

the opposite end of the raised vehicle.

Without adequate clearance, the vehi-

cle 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 dur-

ing emergency towing

Do not secure cables or chains to the

suspension components.

491

7-2. Steps to take in an emergency

When trouble

ises

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 any authorized Lexus
retailer or Lexus authorized repairer,
or any reliable repairer or commercial
towing service.



There is a malfunction in the shift
control system. (



P.202, 505)



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



P.92)



There is a malfunction in the smart
entry & start system. (



P.512)



The 12-volt battery is discharged.
(



P.514)

The following may indicate a problem
with your transmission. Contact any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer 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.

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.

492

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 30 km/h (18 mph).
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.

Using a flatbed truck

Emergency towing

Emergency towing procedure

A
B

493

7-2. Steps to take in an emergency

When trouble

ises

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.214)

■

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 any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.



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

If you think something is
wrong

If you notice any of the following
symptoms, your vehicle probably
needs adjustment or repair. Con-
tact any authorized Lexus retailer
or Lexus authorized repairer, or any
reliable repairer as soon as possi-
ble.

Visible symptoms

Audible symptoms

Operational symptoms

495

7-2. Steps to take in an emergency

When trouble

ises

■

Brake system warning light (warning buzzer)

■

Brake system warning light (warning buzzer)

■

High coolant temperature warning light

(warning buzzer)

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 any authorized Lexus retailer or Lexus author-
ized repairer, or any reliable repairer.

Actions to the warning lights or warning buzzers

Warning light

Details/Actions

(red)

Indicates that:



The brake fluid level is low; or



The brake system is malfunctioning



Immediately stop the vehicle in a safe place and contact any
authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer. 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 any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.

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 any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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.522)

496

7-2. Steps to take in an emergency

: This light illuminates on the multi-information display.

■

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.523)

Warning light

Details/Actions

Indicates a malfunction in the vehicle’s charging system



Immediately stop the vehicle in a safe place and contact any
authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer.

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 any
authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer.

497

7-2. Steps to take in an emergency

When trouble

ises

■

Malfunction indicator lamp (warning buzzer)

: If equipped

■

SRS warning light (warning buzzer)

■

Pop Up Hood warning light (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in:



The emission control system (on some models);



The hybrid system;



The electronic engine control system;



The electronic throttle control system;



The electronic hybrid transmission control system; or



The GPF (Gasoline Particulate Filter) system



Immediately stop the vehicle in a safe place and contact any
authorized Lexus retailer or Lexus authorized repairer, or any reli-
able repairer.

Warning light

Details/Actions

Indicates a malfunction in:



The SRS airbag system; or



The seat belt pretensioner system



Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer 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 any authorized Lexus retailer or Lexus author-
ized repairer, or any reliable repairer.

Indicates a malfunction in the Pop Up Hood system



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

498

7-2. Steps to take in an emergency

■

ABS warning light (warning buzzer)

■

Inappropriate pedal operation warning light

(warning buzzer)

: This light illuminates on the multi-information display.

Warning light

Details/Actions

Indicates a malfunction in:



The ABS; or



The brake assist system



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

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

499

7-2. Steps to take in an emergency

When trouble

ises

■

Electric power steering system warning light (warning buzzer)

■

Low fuel level warning light

■

Driver’s and front passenger’s seat belt reminder light (warning buzzer)

: Driver’s and front passenger’s seat belt warning buzzer:

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

Warning light

Details/Actions

(red)

(yellow)

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



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

Warning light

Details/Actions

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



Refuel the vehicle.

Warning light

Details/Actions

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



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

500

7-2. Steps to take in an emergency

■

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 vehicle reaches a certain speed.

■

Tire pressure warning light

■

LTA indicator (warning buzzer)

Warning light

Details/Actions

(except F SPORT

models)

(F SPORT models)

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

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.503)

Warning light

Details/Actions

(orange)

(if equipped)

Indicates a malfunction in the LTA (Lane Tracing Assist)



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



P.276, 286)

501

7-2. Steps to take in an emergency

When trouble

ises

■

Lexus parking assist-sensor OFF indicator (warning buzzer)

■

RCD OFF indicator (warning buzzer)

■

PKSB OFF indicator (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the Lexus parking assist-sensor function



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

Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.



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



P.321)

Warning light

Details/Actions

(flashes or illumi-

nates)

(if equipped)

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



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



P.334, 505)

Warning light

Details/Actions

(flashes or illumi-

nates)

(if equipped)

When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support Brake) system



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

When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to
asensor being dirty or covered with ice, etc.



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



P.340, 505)

502

7-2. Steps to take in an emergency

■

PCS warning light

■

Slip indicator

■

Parking brake indicator (warning buzzer)

■

Brake hold operated indicator (warning buzzer)

Warning light

Details/Actions

(flashes or illumi-

nates)

(if equipped)

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



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

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



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



P.240, 245, 506)

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



P.259, 272

Warning light

Details/Actions

Indicates a malfunction in:



The VSC system;



The TRC system;



The hill-start assist control system;



The VGRS system (if equipped); or



The DRS system (if equipped)



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

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the parking brake system



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

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



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

503

7-2. Steps to take in an emergency

When trouble

ises

■

Warning buzzer

In some cases, the buzzer may not be heard

due to being in a noisy location or audio

sound.

■

Front passenger detection sensor, seat

belt reminder and warning buzzer

●

If luggage is placed on the front passen-

ger seat, the front passenger detection

sensor may cause the warning light to

flash and the warning buzzer to sound

even if a passenger is not sitting in the

seat.

●

If a cushion is placed on the seat, the sen-

sor may not detect a passenger, and the

warning light may not operate properly.

■

If the malfunction indicator lamp comes

on while driving

The malfunction indicator lamp will come

on if the fuel tank becomes completely

empty. If the fuel tank is empty, refuel the

vehicle immediately. The malfunction indi-

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

go off, contact any authorized Lexus retailer

or Lexus authorized repairer, or any reliable

repairer as soon as possible.

■

Electric power steering system warning

light (warning buzzer)

When the 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.508

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 any authorized Lexus retailer

or Lexus authorized repairer, or any relia-

ble repairer immediately.



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.463)

■

The tire pressure warning light may

come on due to natural causes

The tire pressure warning light may come

on due to natural causes such as natural air

leaks and tire inflation pressure changes

caused by temperature. In this case, adjust-

ing the tire inflation pressure will turn off the

warning light (after a few minutes).

■

Conditions that the tire pressure warn-

ing system may not function properly



P.461

WARNING

■

If both the ABS and the brake system

warning lights remain on

Stop your vehicle in a safe place immedi-

ately and contact any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

The vehicle will become extremely

unstable during braking, and the ABS

system may fail, which could cause an

accident resulting in death or serious

injury.

504

7-2. Steps to take in an emergency

WARNING

■

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 80 km/h (50 mph).

●

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 any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

●

Avoid abrupt maneuvering and brak-

ing.

If the vehicle tires deteriorate, you

could lose control of the steering

wheel or the brakes.

■

If a blowout or sudden air leakage

should occur

The tire pressure warning system may

not activate immediately.

NOTICE

■

To ensure the tire pressure warning

system operates properly

Do not install tires with different specifi-

cations or makers, as the tire pressure

warning system may not operate prop-

erly.

505

7-2. Steps to take in an emergency

When trouble

ises

■

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-

tem is stopped while driving.
When steering wheel operations are heav-

ier 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.522

■

If “Warming Up Maximum Vehicle

Speed: 110 km/h” is displayed

The transmission is being warmed up and

the vehicle is unable to be driven over 110

km/h (65 mph). 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 any authorized Lexus

retailer or Lexus authorized repairer, or any

reliable repairer.

■

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 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 any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.
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.495)

506

7-2. Steps to take in an emergency

■

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 any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer imme-

diately.

●

The LED headlight system

●

The automatic headlight leveling system

●

AHS (Adaptive High-beam System) (if

equipped)

●

AHB (Automatic High Beam) (if

equipped)

●

Multi Weather Lights

■

If “Radar Cruise Control Unavailable

See Owner's Manual” is displayed (on

some models)

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.240, 245)

■

If “Radar Cruise Control Unavailable” is

displayed (on some models)

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.240, 245, 502)

●

PCS (Pre-Collision system) (if equipped)

●

LTA (Lane Tracing Assist) (if equipped)

●

AHS (Adaptive High-beam System) (if

equipped)

●

AHB (Automatic High Beam) (if

equipped)

●

RSA (Road Sign Assist) (if equipped)

●

Dynamic radar cruise control with

full-speed range (if equipped)

■

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.240, 245, 502)

●

PCS (Pre-Collision system) (if equipped)

●

LTA (Lane Tracing Assist) (if equipped)

●

Dynamic radar cruise control with

full-speed range (if equipped)

■

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.453)

■

If “Oil Maintenance Required” is dis-

played

Indicates that the engine oil should be

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

ter by any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer. After changing the engine oil,

507

7-2. Steps to take in an emergency

When trouble

ises

make sure to reset the message. (



P.453)

■

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 any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer imme-

diately.

■

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 that indicates the need for

visiting your Lexus dealer is displayed

The system or part shown on the

multi-information display is malfunctioning.

Have the vehicle inspected by any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer immedi-

ately.

■

If a message that indicates the need for

referring to Owner’s Manual is dis-

played

●

If any of the following messages are

shown on the multi-information display,

follow the instructions.

• “Engine Coolant Temp High” (



P.522)

• “Battery Low” (



P.514)

• “Transmission Fluid Temp High”

(



P.205)

●

If any of the following messages are

shown on the multi-information display, it

may indicate a malfunction. Have the

vehicle inspected by any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer immedi-

ately.

• “Entry & Start System Malfunction”

• “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 any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

• “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.87)

• “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.475)

If the warning message is shown even if

the vents are cleaned, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

508

7-2. Steps to take in an emergency

Take your vehicle to the nearest
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer, 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 80 km (50 miles) at a speed below 80
km/h (50 mph) after the tire pressure
warning light comes on. (



P.500)



For XXX/XXRFXX size tires

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



P.500)

A run-flat tire has a

mark

on the side wall.

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 any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

■

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 any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer immedi-

ately.

Do not continue driving the vehicle, as

the hybrid system may become not able

to be started again.

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

509

7-2. Steps to take in an emergency

When trouble

ises

■

In some conditions (such as at high tem-

peratures)

For XXX/XXRXX size tires: You cannot

continue driving for up to 50 km (80

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

continue driving for up to 100 km (160

miles).

■

For the detailed information on run-flat

tires

See the tire warranty booklet.

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



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



P.512)



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



There may be a malfunction in the
immobilizer system. (



P.92)



There may be a malfunction in the
shift control system.

(



P.202,

507)



There may be a malfunction in the
steering lock system (if equipped).



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.510)



There is a possibility that the tem-
perature of the hybrid battery (trac-

NOTICE

■

When replacing the tires

When removing or fitting the wheels,

tires or the tire pressure warning valve

and transmitter, contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer as the

tire pressure warning valve and transmit-

ter may be damaged if not handled cor-

rectly.

■

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 any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer or other

qualified service shop as soon as possi-

ble. Make sure to replace the tire pres-

sure warning valve and transmitter when

replacing the tire. (



P.462)

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.199)

510

7-2. Steps to take in an emergency

tion battery) is extremely low
(approximately below -30°C
[-22°F]). (



P.199)

: 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.514)



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



P.456)

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



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



P.456)



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



P.514)

Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable
repairer 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.213)

Parking brake indicator will come on.

Turn the power switch to ACCES-
SORY mode.

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

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

511

7-2. Steps to take in an emergency

When trouble

ises

Remove the cover inside the trunk and
pull the lever.

If you lose your keys

New genuine mechanical keys can
be made by any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer
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 any authorized Lexus retailer or

Lexus authorized repairer, or any reliable

repairer immediately with all remaining

electronic keys and the card key (if

equipped) that were provided with your

vehicle.

If the fuel filler door cannot
be opened

If the fuel filler door opener switch
cannot be operated, contact any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer to service the vehicle. In
case where refueling is urgently
necessary, the following procedure
can be used to open the fuel filler
door.

Opening the fuel filler door

512

7-2. Steps to take in an emergency

■

When the electronic key does not work

properly

●

Make sure that the smart entry & start

system has not been disabled using the

Center Display or at any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer. If it has

been disabled, re-enable it.

●

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

set, cancel the function. (



P.146)

■

Unlocking the door

Use the mechanical key (



P.130) in

order to perform the following opera-
tions:

Pull the driver’s door handle and
insert the mechanical key.

Unlock the door.

Remove the key, return the handle,
and then pull the handle again.

■

Locking the door

With the door open, push down the
inside lock button.

If the electronic key does not
operate properly

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



P.146) or the electronic

key cannot be used because the
battery is depleted, the smart entry
& start system and wireless remote
control cannot be used. In such
cases, the doors and trunk can be
opened and the hybrid system can
be started by following the proce-
dure below.

NOTICE

■

In case of a smart entry & start system

malfunction or other key-related

problems

Take your vehicle with all the electronic

keys provided with your vehicle, to any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

Locking and unlocking the
doors, unlocking the trunk

513

7-2. Steps to take in an emergency

When trouble

ises



For the front doors

Close the door while pulling the
door handle.



For the rear doors

Close the door.

■

Trunk

Turn the mechanical key clockwise to
open.

■

Key linked functions

Closes the windows and the moon roof
(turn and hold)

Opens the windows and the moon roof
(turn and hold)

These settings must be customized at any

authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

Depress the brake pedal.

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

When the electronic key is detected, a

buzzer sounds and the power switch will

turn to ON mode.
When the smart entry & start system is

deactivated in customization setting, the

power switch will turn to ACCESSORY

mode.

Firmly depress the brake pedal and
check that

is shown on the

multi-information display.

Press the power switch.

In the event that the hybrid system still
cannot be started, contact any author-

WARNING

■

When using the mechanical key and

operating the power windows or

moon roof

Operate the power window or moon

roof after checking to make sure that

there is no possibility of any passenger

having any of their body parts caught in

the window or moon roof.

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 or moon roof.

Starting the hybrid system

514

7-2. Steps to take in an emergency

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

■

Stopping the hybrid system

Set the parking brake, shift the shift position

to P and press the power switch as you nor-

mally do when stopping the 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.477)

■

Alarm

Using the mechanical key to lock the doors

or trunk will not set the alarm system.

If a door or trunk is unlocked using the

mechanical key when the alarm system is

set, the alarm may be triggered. (



P.94)

■

Changing power switch modes

Release the brake pedal and press the

power switch in step

above. The hybrid

system does not start and modes will be

changed each time the switch is pressed.

(



P.202)

If the 12-volt battery is dis-
charged

The following procedures may be
used to start the hybrid system if the
12-volt battery is discharged.
You can also call any authorized
Lexus retailer or Lexus authorized
repairer, or any reliable repairer.

Lexus LS (2023 year). Manual in english - page 15