LEXUS LS 500H (2019 year). Instruction

412

6-3. Do-it-yourself maintenance

LS500h_OM_(U)_1809

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:

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

A
B

413

6-3. Do-it-yourself maintenance

LS500h_OM_(U)_1809

Mai
nte

e a

are



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.

●

Do not modify the fuses or fuse boxes.

A
B

NOTICE

■

Before replacing fuses

Have the cause of electrical overload

determined and repaired by your Lexus

dealer as soon as possible.

414

6-3. Do-it-yourself maintenance

LS500h_OM_(U)_1809

■

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.

415

LS500h_OM_(U)_1809

When trouble

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When trouble arises

7-1. Essential information

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

416

If your vehicle has to be stopped in

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

416

If the vehicle is trapped in rising

water.............................................

417

7-2. Steps to take in an emergency

If your vehicle needs to be towed

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

419

If you think something is wrong

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

423

If a warning light turns on or a

warning buzzer sounds .......

424

If a warning message is displayed

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

434

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

439

If the hybrid system will not start

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

440

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

442

If the fuel filler door cannot be

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

442

If the electronic key does not

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

443

If the 12-volt battery is discharged

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

445

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

450

If the vehicle becomes stuck

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

454

416

7-1. Essential information

LS500h_OM_(U)_1809

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

417

7-1. Essential information

LS500h_OM_(U)_1809

When trouble

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press it briefly 3 times or more in
succession.

Stop the vehicle in a safe place by
the road.

 Remove the seat belt first.
 If the door can be opened, open the

door and exit the vehicle.

 If the door can not be opened, open

the window using the power window
switch and exit the vehicle through
the window.

 If the window can not be opened

using the power window switch,
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 and exit the vehicle.

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 trapped in
rising water

In the event the vehicle is sub-
merged in water, remain calm and
perform the following.

418

7-1. Essential information

LS500h_OM_(U)_1809

WARNING

■

Using an emergency hammer

for

emergency escape

The rear window of this vehicle can be

shattered by an emergency hammer

used for emergency escape, however,

since the windshield, front side windows

and rear side windows are laminated

glass they can not be shatteredby an

emergency hammer

: Contact your Lexus dealer or after-

market accessory manufacturerfor
further information about an emer-
gency hammer.

■

Escaping the vehicle from the window

There are cases where escaping the

vehicle from the window is not possible

due to seating position, passenger body

type, etc.

When using an emergency hammer,

consider your seat location and the size

of the window opening to ensure that the

opening is accessible and large enough

to escape.

419

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

When trouble

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ses

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.

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.



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.301)

●

Do not turn the power switch off.

This may lead to an accident as the

rear wheels will be locked by the park-

ing lock.

Also, there is a possibility that the

steering wheel is locked and cannot be

operated.

420

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

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, 434)

 There is a malfunction in the immo-

bilizer system. (

P.71)

 There is a malfunction in the smart

access system with push-button
start. (

P.443)

 The 12-volt battery is discharged.

(

P.445)

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.

Do not tow with a sling-type truck to
prevent body damage.

WARNING

■

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 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

during emergency towing

Do not secure cables or chains to the

suspension components.

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 sling-type truck

421

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

When trouble

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

From the front

Use a towing dolly under the rear
wheels.



From the rear

Use a towing dolly under the front
wheels.

If your vehicle is transported by a flat-
bed truck, it should be tied down at the
locations shown in the illustration.

If you use chains or cables to tie down
your vehicle, the angles shaded in
black must be 45°.
Do not overly tighten the tie downs or
the vehicle may be damaged.
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 the vehicle may be dam-
aged. (

P.301)

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

Towing with a wheel-lift type
truck

Using a flatbed truck

Emergency towing

422

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

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

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

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

Phillips-head screwdriver
Towing eyelet

Remove the eyelet cover using a
flathead screwdriver.

To protect the bodywork, place a rag

between the screwdriver and the vehicle

body as shown in the illustration.

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

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

Securely attach cables or chains to
the towing eyelet.

Take care not to damage the vehicle body.

Enter the vehicle being towed and
start the 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.

■

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.

Emergency towing procedure

A
B

423

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

When trouble

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 Fluid leaks under the vehicle.

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

 Flat-looking tires or uneven tire

wear

 Engine coolant temperature gauge

needle continually points higher
than normal.

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

ing

 Strange noises related to the sus-

pension system

 Pinging or other noises related to

the hybrid system

 Engine missing, stumbling or run-

ning roughly

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

when braking

 Vehicle pulls heavily to one side

when driving on a level road

 Loss of brake effectiveness, spongy

feeling, pedal almost touches the
floor

If you think something is
wrong

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

Visible symptoms

Audible symptoms

Operational symptoms

424

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

■

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 parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates that the engine coolant temperature is too high
 Immediately stop the vehicle in a safe place.

Handling method (

P.450)

425

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

When trouble

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■

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.451)

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.

426

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

■

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.

427

7-2. Steps to take in an emergency

LS500h_OM_(U)_1809

When trouble

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ses

■

Brake Override System warning light/Drive-Start Control 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

■

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

Warning light

Details/Actions

When a buzzer sounds:
Brake Override System is malfunctioning;
Drive-Start Control is operating;
Drive-Start Control is malfunctioning; or
Parking Support Brake function (for static objects) is operating
 Follow the instructions displayed on the multi-information display.
When a buzzer does not sound:
Brake Override System is operating
 Release the accelerator pedal and depress the brake pedal.

Warning light

Details/Actions

(red)

(yellow)

Indicates a malfunction in the EPS (Electric Power Steering) system
 Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

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

Warning light

Details/Actions

Warns the driver and/or front passenger to fasten their seat belts
 Fasten the seat belt.

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

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