Lexus RZ450E (2023 year). Manual in english

467

When trouble

ari

ses

When trouble arises

9-1. What to do if a problem occurs

while driving

What to do if a problem occurs

while driving .............................

469

9-2. If a warning is indicated on the

meter

If a warning light turns on/flashes

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

472

If a warning message is displayed

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

483

9-3. If the EV system will not start

When the EV system cannot be

started even though the correct
starting procedure is being fol-
lowed...........................................

504

When the interior lights or head-

lights are dim and the EV system
cannot be started ...................

506

When the interior lights or head-

lights do not illuminate and the
EV system cannot be started
.........................................................

510

When the horn sounds at a low

volume and the EV system can-
not be started............................

510

When the horn does not sound

and the EV system cannot be
started...........................................

511

9-4. If a tire is flat

Repairing a tire with the emer-

gency tire puncture repair kit
.........................................................

512

9-5. If a door cannot be opened or

locked

If a key has been lost................

522

When the doors/windows cannot

be operated using an electronic
key................................................

522

If a door cannot be opened using

the door opener switch .......

529

If the rear doors cannot be

opened from the inside.........

531

If the back door cannot be

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

531

9-6. If the EV system cannot be used

normally

If the charging port lid cannot be

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

533

If AC charging cannot be per-

formed normally.....................

534

If DC charging cannot be per-

formed normally.....................

537

If the charging connector cannot

be disconnected from the
charging inlet...........................

540

If the indicator on the CCID

(Charging Circuit Interrupting
Device) of the AC charging
cable illuminates or flashes

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

541

If the charging schedule function

does not operate normally

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

543

468

9-7. If an indicator on an interior fea-

ture illuminates or flashes

When the wireless charger opera-

tion indicator light (on the
charging tray) flashes ...........

546

9-8. If the vehicle cannot move

When a EV system warning mes-

sage is displayed and the vehicle
does not move.........................

548

If the transmission makes abnormal

sounds.........................................

548

Towing with a tow truck..........

549

Using a flatbed truck................

550

Towing with another vehicle

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

551

Getting unstuck from mud, sand, or

snow.............................................

553

9-9. If you think something is wrong

If a vehicle abnormality is found

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

554

If abnormal sounds are emitted

from the vehicle ......................

554

If the vehicle behaves abnormally

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

555

9-10. Items to check before contacting a

dealership

If the windows do not open or close

by operating the power window
switches......................................

556

The power switch is turned off auto-

matically .....................................

557

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

557

If electrical components cannot be

used or do not operate when a
switch is operated ..................

559

If a light does not illuminate...

560

469

9-1. What to do if a problem occurs while driving

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9-1.What to do if a problem occurs while driving

Press the switch.
All the turn signal lights will flash. To
turn them off, press the switch once
again.

■

Emergency flashers

●

If the emergency flashers are used for a

long time with the EV system stopped

(while the “READY” indicator is not illu-

minated), the 12-volt battery may

become discharged.

●

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 approximately
20 minutes. To manually turn the emer-
gency 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 collision.)

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.

Change the shift position to N.



If the shift position is changed to N:

After slowing down, stop the vehicle in a
safe place by the road.
Stop the EV system.



If the shift position cannot be
changed to N:

Keep depressing the brake pedal with both
feet to reduce vehicle speed as much as
possible.
To stop the EV system, press and hold the
power switch for 2 consecutive seconds or
more, or press it briefly 3 times or more in
succession.

What to do if a problem
occurs while driving

Using the emergency flashers to
warn other drivers

Use the emergency flashers to
inform other drivers of the pres-
ence of your vehicle when it is
stopped on the road, such as if the
vehicle has broken down.

Stopping the vehicle in an emer-
gency

Stop the vehicle using the following
procedure only in an emergency,
such as if it becomes impossible to
stop the vehicle in the normal way:

WARNING

■

If the EV system has to be stopped

while driving

Power assist for the steering wheel will

be lost, making the steering wheel

heavier to turn. Decelerate as much as

possible before stopping the EV system.

470

9-1. What to do if a problem occurs while driving

Stop the vehicle in a safe place by
the road.

Remain calm and follow the following.



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 pres-
sure.

■

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

not operate, the 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 aftermar-

ket accessory manufacturer for further
information about an emergency ham-
mer.

: If equipped

■

How to distinguish laminated glass

When looking from the cross-sectional

view point, laminated glass is two sheets of

glass pasted together.

Laminated glass
Tempered glass

WARNING

To restart the EV system after perform-

ing an emergency shutdown, press the

power switch.

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.

471

9-1. What to do if a problem occurs while driving

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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.

Operation of emergency shut off
system

When a certain level of impact is
detected by the impact sensors, the
emergency shut off system turns off
the EV system and blocks the high
voltage current. If the emergency
shut off system activates, your vehi-
cle will not be able to be restarted.
To restart the EV system, contact
your Lexus dealer.

472

9-2. If a warning is indicated on the meter

9-2.If a warning is indicated on the meter

■

Warning buzzer

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

If a warning light turns on/flashes

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.

Brake system warning light (warning buzzer)

Condition

Cause / Remedy

(U.S.A.) or

(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.

WARNING

If both the ABS and the brake system warning lights remain on, stop your vehicle in a safe

place immediately and contact your Lexus dealer.

The vehicle will become extremely unstable during braking, and the ABS system may fail,

which could cause an accident resulting in death or serious injury.

Brake system warning light (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in:



The regenerative braking system;



The electronically controlled brake system; or



The electric parking brake



Have the vehicle checked by your Lexus dealer immediately.

WARNING

If both the ABS and the brake system warning lights remain on, stop your vehicle in a safe

place immediately and contact your Lexus dealer.

473

9-2. If a warning is indicated on the meter

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This warning light indicates problems with the following:



Airbag sensor assembly



Front impact sensors



Side impact sensors (front door)

WARNING

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.

Charging system warning light (warning buzzer)

Condition

Cause / Remedy

This light illumi-

nates on the

multi-informa-

tion display.

Indicates a malfunction in the vehicle’s charging system



Immediately stop the vehicle in a safe place and contact your Lexus
dealer.

Traction battery charge warning light (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates that the remaining charge of the traction battery is low and
charging is required
When the outside temperature is low, this light may turn on earlier than
usual to urge the driver to charge the traction battery early.



Charge the traction battery. (



P.49, 56)

SRS warning light

Condition

Cause / Remedy

Indicates a malfunction in:



The SRS airbag system; or



The seat belt pretensioner system



Have the vehicle checked by your Lexus dealer immediately.

SRS warning light

474

9-2. If a warning is indicated on the meter



Front passenger occupant classification sensors



Driver’s seat position sensor



Driver’s seat belt buckle switch



Front passenger’s seat belt buckle switch



SRS warning light



“AIR BAG ON” indicator light



“AIR BAG OFF” indicator light



Driver’s seat belt pretensioner, front passenger’s seat belt pretensioner and
force limiter



SRS airbags



SRS system related wiring harnesses and power sources

ABS warning light (warning buzzer)

Condition

Cause / Remedy

(U.S.A.) or

(Canada)

Indicates a malfunction in:



The ABS; or



The brake assist system



Have the vehicle checked by your Lexus dealer immediately.

WARNING

If both the ABS and the brake system warning lights remain on, stop your vehicle in a safe

place immediately and contact your Lexus dealer.

The vehicle will become extremely unstable during braking, and the ABS system may fail,

which could cause an accident resulting in death or serious injury.

475

9-2. If a warning is indicated on the meter

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■

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.

Inappropriate pedal operation warning light (warning buzzer)

Condition

Cause / Remedy

This light illumi-

nates on the

multi-informa-

tion display.

When a buzzer sounds:
Indicates a malfunction in:



The Brake Override System



The Drive-Start Control



Have the vehicle checked by your Lexus dealer immediately.

When a buzzer sounds:
Indicates that the shift position was changed and Drive-Start Control
was operated while depressing the accelerator pedal.



Momentarily release the accelerator pedal.

When a buzzer sounds:
PKSB (Parking Support Brake) (if equipped) has operated



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.

Electric power steering system warning light (warning buzzer)

Condition

Cause / Remedy

(red/yellow)

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



Have the vehicle checked by your Lexus dealer immediately.

WARNING

When the electric power steering system warning 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.

476

9-2. If a warning is indicated on the meter

■

Driver’s and front passenger’s seat belt 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, 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 intermit-
tently for a certain period of time after the vehicle reaches a certain speed.

■

Front passenger detection sensor, seat belt reminder and warning buzzer

●

If luggage is placed on the front passenger seat, the front passenger detection sensor may

cause the warning light to flash and the warning buzzer to sound even if a passenger is not

sitting in the seat.

●

If a cushion is placed on the seat, the sensor may not detect a passenger, and the warning

light may not operate properly.

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

Condition

Cause / Remedy

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.

Rear passengers’ seat belt reminder light (warning buzzer)

Condition

Cause / Remedy

(Vehicles with-

out a head-up

display)

(Vehicles with a

head-up display)

Warns the rear passengers to fasten their seat belts



Fasten the seat belt.

477

9-2. If a warning is indicated on the meter

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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.

■

If the tire pressure warning light comes on

Inspect the tires to check if a tire is punctured.

●

If a tire is punctured: P.512

●

If none of the tires are punctured: Turn the power switch off then turn it to ON. 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 immediately.
• If the tire pressure warning light comes on
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 pressure of each tire is at the specified level and perform the tire inflation pressure
setting procedure. (



P.449)

If the warning light does not turn off even after several minutes have elapsed since perform-
ing the tire inflation pressure setting procedure, have the vehicle inspected by your Lexus
dealer immediately.

Tire pressure warning light (warning buzzer)

Condition

Cause / Remedy

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 from natural causes



After the temperature of the tires has lowered sufficiently, check
the inflation pressure of each tire and adjust them to the specified
level.

When the light comes on:
Low tire inflation pressure from flat tire



Immediately stop the vehicle in a safe place and perform the nec-
essary actions (



P.477)

478

9-2. If a warning is indicated on the meter

■

The tire pressure warning light may come on due to natural causes

The tire pressure warning light may come on due to natural causes such as natural air leaks

and tire inflation pressure changes caused by temperature. In this case, adjusting the tire

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

WARNING

■

If the tire pressure warning light comes on

Be sure to observe the following precautions. Failure to do so could cause a loss of vehi-

cle control and result in death or serious injury.

●

Stop your vehicle in a safe place as soon as possible. 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. Check the tires. If a tire is flat, repair the flat tire by

using emergency tire puncture repair kit.

●

Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose

control of the steering wheel or the brakes.

■

If a blowout or sudden air leakage should occur

The tire pressure warning system may not activate immediately.

■

Maintenance of the tires

Each tire, including the spare (if provided), should be checked monthly when cold and

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

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

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

pressure label [tire and load information label], you should determine the proper tire

inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire pressure monitor-

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

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

under-inflated. Accordingly, when the low tire pressure telltale (tire pressure warning

light) illuminates, you should stop and check your tires as soon as possible, and inflate

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

to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and

tire tread life, and may affect the vehicle’s handling and stopping ability.

Please note that the TPMS (tire pressure warning system) is not a substitute for proper

tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even

if under-inflation has not reached the level to trigger illumination of the TPMS low tire

pressure telltale (tire pressure warning light).

479

9-2. If a warning is indicated on the meter

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WARNING

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

function indicator to indicate when the system is not operating properly. The TPMS (tire

pressure warning system) malfunction indicator is combined with the low tire pressure

telltale (tire pressure warning light). When the system detects a malfunction, the telltale

will flash for approximately one minute and then remain continuously illuminated. This

sequence will continue upon subsequent vehicle start-ups as long as the malfunction

exists. When the malfunction indicator is illuminated, the system may not be able to

detect or signal low tire pressure as intended.

TPMS (tire pressure warning system) malfunctions may occur for a variety of reasons,

including the installation of replacement or alternate tires or wheels on the vehicle that

prevent the TPMS (tire pressure warning system) from functioning properly. Always

check the TPMS (tire pressure warning system) malfunction telltale after replacing one or

more tires or wheels on your vehicle to ensure that the replacement or alternate tires and

wheels allow the TPMS (tire pressure warning system) to continue to function properly.

NOTICE

■

To ensure the tire pressure warning system operates properly

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

system may not operate properly.

PCS warning light (warning buzzer)

Condition

Cause / Remedy

Indicates a malfunction in the PCS (Pre-Collision System).



Follow the instructions displayed on the display.

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

LTA indicator (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the LTA (Lane Tracing Assist).



Follow the instructions displayed on the display.

480

9-2. If a warning is indicated on the meter

LDA indicator (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the LDA (Lane Departure Alert).



Follow the instructions displayed on the display.

PDA indicator (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the PDA (Proactive Driving Assist).



Follow the instructions displayed on the display.

Dynamic radar cruise control indicator (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the dynamic radar cruise control.



Follow the instructions displayed on the display.

Cruise control indicator (warning buzzer)

Condition

Cause / Remedy

(yellow)

Indicates a malfunction in the cruise control.



Follow the instructions displayed on the display.

481

9-2. If a warning is indicated on the meter

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Driving assist information indicator

Condition

Cause / Remedy

Indicates one of the following systems is malfunctioning.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



Follow the instructions displayed on the display.

Indicates one of the following systems is malfunctioning or disabled.



PKSB (Parking Support Brake) (if equipped)



RCD (Rear Camera Detection) (if equipped)



BSM (Blind Spot Monitor)



RCTA(Rear Cross Traffic Alert)



Safe Exit Assist



Follow the instructions displayed on the display.

Intuitive parking assist OFF indicator (warning buzzer) (if equipped)

Condition

Cause / Remedy

Indicates a malfunction in the intuitive parking assist function



Have the vehicle checked 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.

Slip indicator

Condition

Cause / Remedy

(illuminates)

Indicates a malfunction in:



The VSC system;



The TRAC system; or



The hill-start assist control system



Have the vehicle checked by your Lexus dealer immediately.

482

9-2. If a warning is indicated on the meter

Parking brake indicator

Condition

Cause / Remedy

(U.S.A.) (flashes)

(Canada)

(flashes)

It is possible that the parking brake is not fully engaged or released



Operate the parking brake switch once again.

This light comes on when the parking brake is not released. If the light
turns off after the parking brake is fully released, the system is operating
normally.
Indicates a malfunction in the parking brake system



Have the vehicle checked by your Lexus dealer immediately.

Brake hold operated indicator (warning buzzer)

Condition

Cause / Remedy

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle checked by your Lexus dealer immediately.

483

9-2. If a warning is indicated on the meter

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■

Warning messages

The warning messages explained below may differ from the actual messages according to

operation conditions and vehicle specifications.

■

Warning buzzer

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

If a warning message is displayed

The multi-information display shows warnings for system malfunctions and
incorrectly performed operations, and messages that indicate a need for
maintenance. When a message is displayed, perform the appropriate correc-
tive 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 displayed, take the appropriate corrective action for the
warning light.

A message that indicates the need for visiting your Lexus dealer

Cause

Remedy

The system or part shown on the
multi-information display is malfunc-
tioning.

Have the vehicle inspected by your Lexus dealer
immediately.

If a message that indicates the need for the rotary shifter operation is
displayed

Cause

Remedy

To prevent the rotary shifter from
being operated incorrectly or the
vehicle from moving unexpectedly, a
message that requires shifting the
shift position may be displayed on
the multi-information display.

Follow the instruction of the message and shift the
shift position.

484

9-2. If a warning is indicated on the meter

“EV System Stopped Steering Power Low”

Cause

Remedy

This message is displayed if the EV
system 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.

“Auto Power OFF to Conserve Battery”

Cause

Remedy

Power was turned off due to the
automatic power off function.
(



P.140)

Next time when starting the EV system, operate the
EV system for approximately 5 minutes to recharge
the 12-volt battery.

“Shift is in N Release Accelerator Before Shifting”

Cause

Remedy

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

Release the accelerator pedal and change the shift
position to D or R.

“Press brake when vehicle is stopped EV system may overheat”

Cause

Remedy

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 EV system may overheat. Release the accelera-
tor pedal and depress the brake pedal.

“12-Volt Battery Charging System Malfunction Stop in a Safe Place See
Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Immediately stop the vehicle and contact your Lexus
dealer. Continuing to drive the vehicle may be dan-
gerous.

485

9-2. If a warning is indicated on the meter

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“EV system overheated Output power reduced”

Cause

Remedy

This message may be displayed
when driving under severe operating
conditions. (For example, when driv-
ing up a long steep hill.)

Handling method: P.557

“Tire Set Switching Incomplete Try Tire Set Registration Again See
Owner's Manual”

Cause

Remedy

The wheel set change could not be
completed.

Check which wheel set is installed and perform the
change procedure again from the beginning.
(



P.453)

“Maintenance Required For Traction Battery At Your Dealer”

Cause

Remedy

The traction battery is scheduled to
be inspected or replaced.

Have the vehicle inspected by your Lexus dealer
immediately.



Continuing to drive the vehicle without having the
traction battery inspected will cause the EV sys-
tem not to start.



If the EV system does not start, contact your Lexus
dealer immediately.

“Headlight System Malfunction Visit Your Dealer”

Cause

Remedy

The system may be malfunctioning. Have the vehicle checked by your Lexus dealer.

486

9-2. If a warning is indicated on the meter

: When stopping the vehicle, do not stop the EV system until the display message has

turned off.

: When stopping the vehicle, do not stop the EV system until the display message has

turned off.

“AWD System Overheated Switching to 2WD Mode”

Cause

Remedy

AWD system is overheated.

Stop the vehicle in a safe place with the EV system
operating.

If the message disappears after a while, there is no
problem. If the message remains, have the vehicle
inspected by your Lexus dealer immediately.

“AWD System Overheated 2WD Mode Engaged”

Cause

Remedy

AWD system has been temporarily
released and switched to
front-wheel drive due to overheat-
ing.

Stop the vehicle in a safe place with the EV system
operating.

If the message disappears after a while, AWD sys-
tem will automatically recover. If the message
remains, have the vehicle inspected by your Lexus
dealer immediately.

“AWD System Malfunction 2WD Mode Engaged Visit Your Dealer”

Cause

Remedy

A malfunction occurs in the AWD
system.

Have the vehicle inspected by your Lexus dealer
immediately.

“Access System with Elec.Key malfunction See owner's manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

487

9-2. If a warning is indicated on the meter

When trouble

ari

ses

“Braking Power Low Stop in a Safe Place See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Immediately stop the vehicle in a safe place and con-
tact your Lexus dealer. Continuing to drive the vehi-
cle may be dangerous.

“A New Key has been Registered Contact Your Dealer for Details”

Cause

Remedy

This message will be displayed each
time the driver’s door is opened
when the doors are unlocked from
the outside for approximately 10
days after a new electronic key has
been registered.

If this message is displayed but you have not had a
new electronic key registered, ask your Lexus dealer
to check if an unknown electronic key (other than
those in your possession) has been registered.

“Parking Brake Temporarily Unavailable”

Cause

Remedy

If the parking brake is operated
repeatedly over a short period of
time, the system may restrict opera-
tion to prevent overheating.

If this happens, refrain from operating the parking
brake. Normal operation will return after about 1
minute.

“EPB Activation Stopped Incompletely”

Cause

Remedy

Operate the parking brake switch. If
the message does not disappear
after operating the switch several
times, the system may be malfunc-
tioning.

Have the vehicle checked by your Lexus dealer.

489

9-2. If a warning is indicated on the meter

When trouble

ari

ses

: Electricity is consumed when operating traction battery heater. Using My Room Mode

also consumes power.

“Charging Stopped Due to Pulled Charging Connector”

Cause

Remedy



AC charging connector is
removed while AC charging



After the traction battery is fully
charged, the AC charging con-
nector is removed while the trac-
tion battery is being recharged
again because electricity-con-
suming functions

have been used

and the remaining charge is now
reduced.

If the AC charging connector is disconnected
during AC charging, charging will be suspended. To
continue charging, reconnect the AC charging con-
nector.

AC charging connector is not
securely connected

Check the connection status of the AC charging
connector.



When connecting the AC charging connector,
make sure not to touch the latch release button.
Insert the AC charging connector securely until
you hear a click. The AC charging connector may
not be connected correctly if the latch release
button is pressed while inserting.



After connecting the AC charging connector,
check that the latch release button is not pressed
and the charging indicator of the charging port is
turned on.

If charging cannot be carried out, even though the
proper procedures were followed, have the vehicle
inspected by your Lexus dealer.

Latch release button of AC charging
connector was pressed while
charging

When the latch release button is pressed while AC
charging, charging stops. To continue AC charging,
reconnect the AC charging connector.

491

9-2. If a warning is indicated on the meter

When trouble

ari

ses

“Charging Stopped Check Charging Source”

Cause

Remedy

Problem in power supply
from external power source

Check the following items.



Plug is not disconnected



Plug is securely inserted



Remote switch is not off



Power source indicator on the CCID (Charging Circuit
Interrupting Device) is illuminated



The circuit breaker has tripped



Extension cord is not used and electrical socket is not
overloaded



Connected to a dedicated power line



Electrical leakage has occurred or not

If there is no problem with any of the above items, there may
be a problem with the electrical socket of the building.
Contact an electrician and request an inspection. (Contact
the facility manager of the charging station when there is a
problem with charging station.)
If charging cannot be carried out, even though there is no
problem with the power source path, there may be a mal-
function in the system. Have the vehicle inspected by your
Lexus dealer.
Furthermore, if the error warning indicator on the CCID
(Charging Circuit Interrupting Device) is flashing, there
may be an electrical leakage. Consult your Lexus dealer.

AC charger has stopped
charging

Charging may be canceled by an interruption of power
supply depending on specifications of a charger. Refer to
the instructions provided with the charger.



When charging is stopped using the charger



Equipment with charging schedule function



Equipment that is not compatible with the charging
schedule function of the vehicle

Check if it is possible to charge with the AC charging cable
equipped to the vehicle (if equipped). If charging cannot be
carried out, even when using the genuine AC charging
cable, contact your Lexus dealer.

AC charger is not compatible
with vehicle

Check if it is possible to charge with the AC charging cable
equipped to the vehicle.
If charging cannot be carried out, even when using the gen-
uine AC charging cable, consult your Lexus dealer.

492

9-2. If a warning is indicated on the meter

■

Performing a system check

Be sure to engage the parking brake and then turn the power switch off.

DC charger is not compatible
with the vehicle.

If the message above is displayed when DC charging has
not stopped operations, the DC charger may be damaged,
so do not use that DC charger. Check if it is possible to
charge with another DC charger.

The DC charger is malfunc-
tioning.

“Charging Stopped High Energy Use See Owner's Manual”

Cause

Remedy

Power is being consumed by electri-
cal components of vehicle

Check the following items, and then carry out
charging again.



If the headlights and audio are turned on, turn
them off.



Turn the power switch off.

If charging cannot be carried out, even after per-
forming the above, the 12-volt battery may not be
sufficiently charged. Operate the traction battery
system for approximately 15 minutes or more to
charge the 12-volt battery.

“Charging System Malfunction See Owner's Manual”

Condition

Cause / Remedy

Malfunction occurred in charging
system

Have the vehicle checked by your Lexus dealer.

“Check Charging System Close Charging Port Lid See Owner's Man-
ual”

Condition

Cause / Remedy

System check is not completed
properly after DC charging.

If the system check after DC charging is not com-
pleted successfully, the EV system will not start even
if the power switch is pressed while depressing the
brake pedal.
Perform a system check with the following proce-
dures. (



P.492)

Cause

Remedy

493

9-2. If a warning is indicated on the meter

When trouble

ari

ses

Close the DC charging inlet cap, and then close the charging port lid.

Turn the power switch to ON.

Check if “Checking Charging System” is displayed on the multi-information display
Do not open the charging port lid while the charging system is checking.
When the system check is completed, the power switch automatically turns off.

Press the power switch while depressing the brake pedal.

The “READY” indicator will turn on.
Contact your Lexus dealer if the charging system check is done and the message on the

multi-information display does not go off.

“Charging Stopped Time Limit Reached”

Condition

Cause / Remedy

The DC charging is not completed
within the restricted time with DC
charger.



Depending on the type of DC charger, the timer
may be set to stop charging after a certain time.
Check with the charging station manager.



Depending on the condition of the vehicle, the
charging time may become longer than normal,
and the DC charging may not be completed
within the restricted time.



When the A/C, headlights, audio system, etc., are
turned on, the electricity consumption of the vehi-
cle will be increased. Perform the DC charging
after turning off all of the above.



The temperature of the traction battery may be
low. Perform the DC charging after warming up
the traction battery.

“Charging Stopped Check Charging Source or Vehicle”

Cause

Remedy

Malfunction occurred in connector
locking system.

Have the vehicle checked by your Lexus dealer.

494

9-2. If a warning is indicated on the meter

“The Traction Battery Temp is low System put priority on charging to
preserve battery condition” (Alaska and Canada only)

Cause

Remedy

The traction battery warming control
was operated

When the traction battery warming control oper-
ates, the charging schedule is not used and charging
is performed.
This is a control to protect the traction battery, and
not a malfunction.

“Shift System Malfunction Shifting Unavailable Drive to a Safe Place
and Stop”

Cause

Remedy

There is a malfunction in the shift
control system.

Have the vehicle checked by your Lexus dealer
immediately.

“Shift System Malfunction Driving Unavailable”

Cause

Remedy

There is a malfunction in the shift
control system.

Have the vehicle checked by your Lexus dealer
immediately.

“Shift System Malfunction Apply Parking Brake Securely When Parking
See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

“P Switch Malfunction Apply Parking Brake Securely When Parking
See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

495

9-2. If a warning is indicated on the meter

When trouble

ari

ses

“Shift System Unavailable Apply Parking Brake Securely When Parking
See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

“Shift System Malfunction See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

“Shift System Malfunction Stop in a Safe Place See Owner's Manual”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

“Key Battery Low Replace Key Battery”

Cause

Remedy

The electronic key has a low battery. Replace the electronic key battery. (



P.523)

496

9-2. If a warning is indicated on the meter

“System Malfunction Visit Your Dealer”

Cause

Remedy

Indicates one of the following systems is dis-
abled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist) (if

equipped)



AHB (Automatic High Beam) (if
equipped)



AHS (Adaptive High-beam System) (if
equipped)



Dynamic radar cruise control



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)



BSM (Blind Spot Monitor)



RCTA (Rear Cross Traffic Alert)



Safe Exit Assist



Intuitive parking assist (if equipped)



PKSB (Parking Support Brake) (if

equipped)



RCD (Rear camera detection) (if

equipped)

Have the vehicle inspected by your Lexus
dealer immediately.

497

9-2. If a warning is indicated on the meter

When trouble

ari

ses

“System Stopped See Owner's Manual”

Cause

Remedy

Indicates one of the following systems is dis-
abled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist) (if

equipped)



AHB (Automatic High Beam) (if
equipped)



AHS (Adaptive High-beam System) (if
equipped)



Dynamic radar cruise control



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)



BSM (Blind Spot Monitor)



RCTA (Rear Cross Traffic Alert)



Safe Exit Assist



Intuitive parking assist (if equipped)



PKSB (Parking Support Brake) (if

equipped)



RCD (Rear camera detection) (if

equipped)

Follow the following correction methods.



Check the voltage of the 12-volt battery



Check the sensors that the Lexus Safety
System + 3 uses for foreign matter cover-
ing them. Remove them if any. (



P.270)



Check if the back door is open.

Indicates the sensors may not be operating
properly. (



P.273, 342, 359, 347, 350,

371, 372, 363)



Check the rear bumper around the sen-
sors used by the BSM, RCTA, or Safe Exit
Assist for foreign matter covering them.
Remove them if any. (



P.342, 347)



Check the sensors including camera sen-
sors used by the Intuitive parking assist, or
PKSB for foreign matter covering them.
Remove them if any. (



P.348)



When problems are solved and the sen-
sors are operational, this indication may
disappear by itself.

498

9-2. If a warning is indicated on the meter

“System Stopped Front Camera Low Visibility See Owner's Manual”

Cause

Remedy

Indicates one of the following systems is dis-
abled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist) (if

equipped)



AHB (Automatic High Beam) (if
equipped)



AHS(Adaptive High-beam System) (if
equipped)



Dynamic radar cruise control



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)

Follow the following correction methods.



Using the windshield wipers, remove the
dirt or foreign matter from the windshield.



Using the air conditioning system, defog
the windshield.



Close the hood, remove any stickers, etc.
to clear the obstruction in front of the front
camera.

“System Stopped Front Camera Out of Temperature Range Wait until
Normal Temperature”

Cause

Remedy

Indicates one of the following systems is dis-
abled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist) (if

equipped)



AHB (Automatic High Beam) (if
equipped)



AHS (Adaptive High-beam System) (if
equipped)



Dynamic radar cruise control



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)

Follow the following correction methods.



If the front camera is hot, such as after the
vehicle is parked in the sun, use the air
conditioning system to decrease the tem-
perature around the front camera



If a sunshade was used when the vehicle
was parked, depending on its type, the
sunlight reflected from the surface of the
sunshade may cause the temperature of
the front camera to become excessively
high



If the front camera is cold, such after the
vehicle is parked in an extremely cold
environment, use the air conditioning sys-
tem to increase the temperature around
the front camera

Lexus RZ450E (2023 year). Manual in english - page 15