Lexus RZ450E (2023 year). Manual in english

499

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

When trouble

ari

ses

“System Stopped Front Radar Sensor Blocked Clean Radar Sensor”

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



PDA (Proactive Driving Assist)

Follow the following correction methods.



Check if there is any foreign matter
attached to the radar sensor or radar sen-
sor cover and clean them if necessary.
(



P.270)



This message may be displayed when
driving in an open area with few nearby
vehicles or structures, such as a desert,
grasslands, suburbs, etc.

The message may be cleared by driving the
vehicle in an area with structures, vehicles,
etc. nearby.

“System Stopped Front Radar Sensor 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



PDA (Proactive Driving Assist)

The temperature of the radar sensor is out-
side of the operating range. Wait for the
temperature to become appropriate.

500

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

“System Stopped Front Radar In Self Calibration 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



PDA (Proactive Driving Assist)

Follow the following correction methods.



Check if there is any foreign matter
attached to the radar sensor or radar sen-
sor cover and clean them if necessary.
(



P.270)



The radar sensor may be misaligned and
will be adjusted automatically while driv-
ing. Continue driving for a while.

“Driver Monitor Out of Temperature Range Wait until Normal Tem-
perature” (if equipped)

Cause

Remedy

Indicates one of the following sys-
tems is disabled.



Driver monitor (if equipped)



Traffic Jam Assist (if equipped)

The temperature of the driver monitor camera is
outside of the operating range. Wait for the tem-
perature to become appropriate.

“Driver Monitor Unavailable See Owner's Manual” (if equipped)

Cause

Remedy

The lens of the driver monitor cam-
era may be dirty.

When there is dirt on the camera lens, clean it with a
dry, soft cloth so as to not damage it.

501

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

When trouble

ari

ses

“Unavailable Activation Condition not Satisfied See Owner's Manual”
(if equipped)

Cause

Remedy

The LCA function cannot be

used as the operating conditions
have not been met.(



P.294)

Operate the turn signal lever again after all of the
operating conditions are met.

“Cruise Control Unavailable See Owner's Manual”

Cause

Remedy

Indicates one of the following sys-
tems is disabled.



Dynamic radar cruise control



Cruise control

A message is displayed when the
driving assist switch is pushed
repeatedly.

Press the driving assist switch quickly and firmly.

“Parking Assist Unavailable Low Visibility See Owner's Manual”

Cause

Remedy

Indicates one of the following sys-
tems is disabled.



RCD (Rear camera detection)

(if equipped)



PKSB (Parking Support

Brake) (if equipped)

Remove any dirt or foreign matter from the rear
cameras.

502

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

“Parking Assist Unavailable Sensor Blocked”

Cause

Remedy

A sensor may be covered with water drops,
ice, snow, dirt, etc.

Remove the water drops, ice, snow, dirt, etc.,
from the sensor to return the system to nor-
mal.
If a sensor is dirty, the position of the dirty
sensor will be shown on the display.

Due to ice forming on a sensor at low tem-
peratures, a warning message may be dis-
played or the sensor may not be able to
detect an object.

Once the ice melts, the system will return to
normal.

If a warning message is displayed even if the
sensor is clean, there may be a sensor mal-
function.

Have the vehicle inspected by your Lexus
dealer.

“EV system malfunction”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

“Accelerator System Malfunction”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

“Plug-in Charging System Malfunction”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

503

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

n t

ise

“Traction battery system malfunction”

Cause

Remedy

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

“Battery Low”

Remedy

Follow the instructions. (



P.526)

NOTICE

■

“Battery Low” is displayed frequently

The 12-volt battery may have deteriorated. As the battery may discharge in this state

when left unattended, have the battery inspected by your Lexus dealer.

“Regenerative braking limited. Press brake to decelerate.”

Cause

Remedy

Regenerative braking may be restricted in
the following situations.



When electrical energy cannot be regen-
erated any more as the traction battery is
fully charged



When the temperature of the traction bat-
tery is extremely high or extremely low



When the temperature of the electric
motor or power control unit, etc. is
extremely high

Firmly depress the brake pedal to decelerate
the vehicle.

504

9-3. If the EV system will not start

9-3.If the EV system will not start

: It may not be possible to shift the shift

position from P.

When the EV system cannot
be started even though the
correct starting procedure is
being followed

Cause

Remedy

The charging cable
may be connected
to the vehicle.

Remove the
charging connector.

If the smart access
system with
push-button start
has been disabled
by a setting, the
electronic key may
not operate nor-
mally.

Make sure that the
smart access sys-
tem with push-but-
ton start has not
been disabled by a
customization set-
ting. If the function
has been disabled,
enable it.

If the electronic key
has been set to bat-
tery saving mode, it
may not operate
normally.

Check if electronic
key has been set to
battery saving
mode. If it is, cancel
the mode.

The traction battery
may be completely
discharged.

Charge the traction
battery.

There may be a mal-
function in the
immobilizer system.



If the key is touch-
ing or is covered
by a metallic
object, move the
key away from the
object.



If the key is near to
or touching a key
to the security sys-
tem (key with a
built-in transpon-
der chip) of
another vehicle,
move the key
away from the
other key.

The EV system may
be malfunctioning
due to an electrical
problem such as
electronic key bat-
tery depletion or a
blown fuse.

However, depend-
ing on the type of
malfunction, a tem-
porary measure is
available to start the
EV system.

There may be a mal-
function in the shift
control system.

Contact your Lexus
dealer.

There is a possibility
that the temperature
of the EV battery
(traction battery) is
extremely low
(approximately
below -22°F
[-30°C]).

Try to start the EV
system again after
the temperature of
the EV battery
increases due to the
outside tempera-
ture increase etc.

Cause

Remedy

505

9-3. If the EV system will not start

When trouble

ari

ses

Pull the parking brake switch to check
that the parking brake is set.

Pull the parking brake switch to
check that the parking brake is set.

Parking brake indicator will come on.

Check that the shift position is in P.

Change the power switch to
ACC.

*1, 2

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

Even if the EV system can be started
using the above steps, the system may
be malfunctioning.
Have the vehicle checked by your
Lexus dealer immediately.

: ACC mode can be enabled/disabled

on the customize menu. (



P.597)

: When ACC is disabled, turn the power

switch to ON then OFF, and start the
EV system as described in P.505within
5 seconds.

Ensure that the shift position is in P
and 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 will sound and the power switch

mode will change to ON.
If the smart access system with push-but-

ton start has been disabled by a customiza-

tion setting, the power switch mode will

change to ACC.

Firmly depress the brake pedal and
check that

is shown on the

multi-information display.

Press the power switch shortly and
firmly.

In the event that the EV system still cannot

be started, contact your Lexus dealer.
If you need further assistance, contact your

Lexus dealer.

■

Stopping the EV system

Shift the shift position to P, set the parking

brake and press the power switch as you

normally do when stopping the EV 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.523)

■

Changing power switch modes

Release the brake pedal and press the

power switch in step

above. The EV sys-

tem will not start and the mode will be

changed each time the switch is pressed.

(



P.138)

Starting the EV system in an
emergency

Starting the EV system when the
electronic key is not operating
normally

506

9-3. If the EV system will not start

If the 12-volt battery discharges, it may
not be possible to shift the shift position
to other positions.
In this case, the vehicle cannot be
towed without lifting both front wheels
because the front wheels will be
locked.

■

When the 12-volt battery is removed or

discharged

●

In some cases, it may not be possible to

unlock the doors using the smart access

system with push-button start after the

12-volt battery has been replaced.

Use the wireless remote control or the

mechanical key to lock or unlock the

doors.

●

If the EV system cannot be started the

first time the power switch is pressed

after removing and installing the 12-volt

battery, touch the Lexus emblem side of

the electronic key to the power switch to

start the EV system.

●

The power switch mode is memorized by

the vehicle.

After the 12-volt battery has been

recharged or replaced, the power switch

will return to the mode it was in before it

was discharged or removed.
Before disconnecting the 12-volt battery,

turn the power switch off.
If you are unsure what mode the power

switch was in before the 12-volt battery was

discharged, be especially careful when

reconnecting the 12-volt battery.

●

Some systems may require initialization.

■

To prevent 12-volt battery discharge

●

Turn off the headlights and the audio sys-

tem while the EV system is off.

●

Turn off any unnecessary electrical com-

ponents when the vehicle is running at a

low speed for an extended period, such

as in heavy traffic.

■

If the vehicle 12-volt battery is dis-

charged

●

The doors cannot be locked or unlocked

using the Smart access system with

push-button start or wireless remote con-

trol, and the door opener switches will

not operate. Use the mechanical key to

enable/disable manual release handle

operation. By enabling manual release

handle operation, the door can be

opened.

●

Information recorded by various comput-

ers will be cleared.

If the 12-volt battery has become dis-

charged, have the vehicle inspected by

your Lexus dealer.

●

Some systems may require initialization.

■

Charging the 12-volt battery

The electricity stored in the 12-volt battery

When the interior lights or
headlights are dim and the
EV system cannot be started

Cause

Remedy

The 12-volt battery
may be discharged.
(



P.506)

Restarting the EV
system using the
jumper (or booster)
cables. (



P.526)

The 12-volt battery
terminals may be
loose or corroded.

Check if a 12-volt
battery terminal is
loose or corroded.

If the vehicle 12-volt battery is
discharged

WARNING

■

When replacing the 12-volt battery

●

When the vent plug and indicator are

close to the hold down clamp, the bat-

tery fluid (sulfuric acid) may leak.

●

For information regarding 12-volt bat-

tery replacement, contact your Lexus

dealer.

507

9-3. If the EV system will not start

When trouble

ari

ses

will discharge gradually even when the

vehicle is not in use, due to natural dis-

charge and the draining effects of certain

electrical appliances.
If the vehicle is left for a long time, the

12-volt battery may discharge, and the EV

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

cally while the EV system is operating.)

■

When replacing the 12-volt battery

●

Use a 12-volt battery that the case size is

same as the previous one (LN2), 20 hour

rate capacity (20HR) is equivalent

(60Ah) or greater, and performance rat-

ing (CCA) is equivalent (345A) or

greater.

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

not be properly secured.

• If the 20 hour rate capacity of the

replacement battery is low, even if the

vehicle is used frequently, the 12-volt bat-

tery may discharge and EV system may

not be able to start.

For details, consult your Lexus dealer.

The doors cannot be locked using the
Smart access system with push-button
start or wireless remote control.

Insert a plastic card, etc. into the
gap in the door handle to pry up the
cover.

To avoid damage, do not apply excessive

force to the cover.

Remove the cover by pressing it on
the rear.

Using the mechanical key, turn the
door lock to the lock side to disable
the door.

Check that the door cannot be
opened.

When the doors cannot be locked
from outside the vehicle after the
12-volt battery was discharged

Disabling the operation of the
driver’s door

508

9-3. If the EV system will not start

Open the door. Using the mechani-
cal key, slide the cover as shown in
the illustration.

To avoid damage, do not apply excessive

force to the cover.

Insert the mechanical key into the
opening.

Remove the mechanical key and
slide the emergency lock cover
back to its original position.

Check that all of the doors cannot
be opened.

When disconnecting a 12-volt battery
terminal, contact your Lexus dealer.
If a 12-volt battery terminal is discon-
nected, the doors will not be able to be
opened using the door opener
switches and the electronic key may
become trapped in the vehicle.
To prevent the electronic key (mechan-
ical key) from being locked inside the
vehicle, make sure to remove it from
the vehicle before disconnecting a
12-volt battery terminal.

If the electronic key (mechanical key) is
to be left in the vehicle, make sure to
open a window so an inside manual
release handle can be operated.

Disabling the operation of doors
other than the driver’s door

When removing the 12-volt bat-
tery terminals

509

9-3. If the EV system will not start

n t

ise

■

If a 12-volt battery terminal has been

disconnected

●

If a 12-volt battery terminal has been dis-

connected, the doors cannot be locked

or unlocked using the Smart access sys-

tem with push-button start system or

wireless remote control, and the door

opener switches will not operate.

Make sure to remove the electronic key

(mechanical key) from the vehicle before

disconnecting a 12-volt battery terminal.
If the electronic key (mechanical key) is to

be left in the vehicle, open a window so an

inside manual release handle can be oper-

ated.

●

The doors may not be able to be

unlocked using the Smart access system

with push-button start immediately after

a 12-volt battery terminal is disconnected

and reconnected.

If the doors cannot be unlocked, use the

wireless remote control or mechanical key

to lock and unlock the doors.

●

When a 12-volt battery terminal is dis-

connected, information recorded by vari-

ous computers will be cleared.

●

Some systems may require initialization.

WARNING

■

When removing the 12-volt battery

terminals

Always remove the negative (-) terminal

first. If the positive (+) terminal contacts

any metal in the surrounding area when

the positive (+) terminal is removed, a

spark may occur, leading to a fire in addi-

tion to electrical shocks and death or

serious injury.

■

Avoiding 12-volt battery fires or

explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the

12-volt battery:

●

Make sure each jumper cable is con-

nected to the correct terminal and that

it is not unintentionally in contact with

any other than the intended terminal.

●

Do not allow the other end of the

jumper cable connected to the “+” ter-

minal to come into contact with any

other parts or metal surfaces in the

area, such as brackets or unpainted

metal.

●

Do not allow the + and - clamps of the

jumper cables to come into contact

with each other.

●

Do not smoke, use matches, cigarette

lighters or allow open flame near the

12-volt battery.

■

12-volt battery precautions

The 12-volt battery contains poisonous

and corrosive acidic electrolyte, while

related parts contain lead and lead com-

pounds. Observe the following precau-

tions when handling the 12-volt battery:

●

When working with the 12-volt battery,

always wear safety glasses and take

care not to allow any battery fluids

(acid) to come into contact with skin,

clothing or the vehicle body.

●

Do not lean over the 12-volt battery.

●

In the event that battery fluid comes

into contact with the skin or eyes,

immediately wash the affected area

with water and seek medical attention.

Place a wet sponge or cloth over the

affected area until medical attention can

be received.

●

Always wash your hands after handling

the 12-volt battery support, terminals,

and other battery-related parts.

●

Do not allow children near the 12-volt

battery.

510

9-3. If the EV system will not start

When the interior lights or
headlights do not illuminate
and the EV system cannot be
started

Cause

Remedy

The 12-volt battery
may be discharged.
(



P.506)

Restarting the EV
system using the
jumper (or booster)
cables. (



P.526)

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

One or both of the
12-volt battery ter-
minals may be dis-
connected.

Check if a 12-volt
battery terminal is
disconnected.
Contact your Lexus
dealer if the problem
cannot be repaired,
or if repair proce-
dures are unknown.

When the horn sounds at a
low volume and the EV sys-
tem cannot be started

Cause

Remedy

The 12-volt battery
may be discharged.
(



P.506)

Restarting the EV
system using the
jumper (or booster)
cables. (



P.526)

The 12-volt battery
terminal connec-
tions may be loose
or corroded.

The 12-volt battery
terminals may be
loose or corroded.

512

9-4. If a tire is flat

9-4.If a tire is flat

■

A flat tire that cannot be repaired with

the emergency tire puncture repair kit

In the following cases, the tire cannot be

repaired with the emergency tire puncture

repair kit.
Contact your Lexus dealer.

●

When the tire is damaged due to driving

without sufficient air pressure

●

When the tire lost air pressure due to a

crack or damage in the tire sidewall

●

When the tire is visibly separated from

the wheel

●

When the cut or damage to the tread is

0.16 in. (4 mm) long or more

●

When the wheel is damaged

●

When two or more tires have been punc-

tured

●

When there is more than one hole or cut

in the damaged tire

●

When the sealant has expired

Before using the emergency tire punc-
ture repair kit, perform the following.

Stop the vehicle in a safe place on a
hard, flat surface.

Set the parking brake.

Change the shift position to P.

Stop the EV system.

Turn on the emergency flashers.
(



P.469)

Check the degree of the tire dam-
age.

A tire should only be repaired with the

emergency tire puncture repair kit if the

damage is caused by a nail or screw pass-

ing through the tire tread.



Do not remove the nail or screw
from the tire. Removing the object
may widen the opening and disen-
able emergency repair with the kit.



To avoid sealant leakage, move the
vehicle until the area of the punc-
ture, if known, is positioned at the

Repairing a tire with the
emergency tire puncture
repair kit

Your vehicle is not equipped with a
spare tire, but instead is equipped
with an emergency tire puncture
repair kit.

A puncture caused by a nail or
screw passing through the tire
tread can be repaired temporarily
with the emergency tire puncture
repair kit. (The kit contains a bottle
of sealant. The sealant can be used
only once to temporarily repair one
tire without removing the nail or
screw from the tire.)

After temporarily repairing the tire
with the kit, have the tire repaired
or replaced by your Lexus dealer.

WARNING

Do not continue driving with a flat tire.

Driving even a short distance with a flat

tire can damage the tire and the wheel

beyond repair.

Driving with a flat tire may cause a cir-

cumferential groove on the side wall. In

such a case, the tire may explode when

using the emergency tire puncture repair

kit, resulting in death or serious injury.

Preparing to use the emergency
tire puncture repair kit

513

9-4. If a tire is flat

n t

ise

top of the tire.

Emergency tire puncture repair kit
Towing eyelet

Storage position of the emergency tire puncture repair kit and tool

Emergency tire puncture repair
kit details/name of each part

WARNING

■

Precautions for handling the emer-

gency tire puncture repair kit

●

The emergency tire puncture repair kit

is made exclusively for your vehicle.

Do not use it on other vehicles.

●

Do not use the emergency tire punc-

ture repair kit for tires that are a differ-

ent size than the specified ones or for

any other purpose.

Doing so may cause the tires to not be
repaired properly.

■

Precautions for use of the sealant

●

Ingesting the sealant is hazardous to

your health. If you ingest sealant, con-

sume as much water as possible, then

immediately consult a doctor.

514

9-4. If a tire is flat



Bottle

Sticker



Compressor

Air pressure gauge
Compressor switch
Power plug
Hose
Air release cap

■

Handling the emergency tire puncture

repair kit/sealant

●

The emergency tire puncture repair kit is

designed to inflate vehicle tires.

●

Do not use to check or to adjust the tire

pressure.

●

The kit is exclusively designed for size

and type of tires originally installed on

your vehicle. Do not use it for tires that a

different size than the original ones, or for

any other purposes.

●

The sealant stored in the emergency tire

puncture repair kit can be used only once

to temporarily repair a single tire.

If the sealant in the bottle and other parts of
the kit have been used and need to be
replaced, contact your Lexus dealer.

●

The sealant can be used when the outside

temperature is from -40°F (-40°C) to

140°F (60°C).

●

If the sealant gets on your clothes, it may

stain.

●

If the sealant adheres to a wheel or the

surface of the vehicle body, the stain may

not be removable if it is not cleaned at

once. Immediately wipe away the sealant

with a wet cloth.

●

The compressor can be used repeatedly.

●

During operation of the kit, a loud opera-

tion noise is produced. This does not indi-

cate a malfunction.

■

Checking the sealant

The sealant has a limited lifespan. Check

the sealant expiration date occasionally.
The expiration date is printed on the bottle.
The sealant should be replaced before the

expiry date. Contact your Lexus dealer.
Do not use sealant whose expiry date has

already passed. Otherwise, repairs con-

ducted using the emergency tire puncture

repair kit may not be performed properly.

■

When disposing of the liquid sealant

The liquid sealant contains materials which

are harmful to the environment. When dis-

posing of liquid sealant or a liquid sealant

WARNING

●

If sealant gets in eyes or adheres to

skin, immediately wash it off with water.

If discomfort persists, consult a doctor.

515

9-4. If a tire is flat

n t

ise

bottle, contact your Lexus dealer or contact

your local government for information on

the appropriate authorized waste disposal

method.

Fold the deck board.

Remove the deck side board.

Take out the emergency tire punc-
ture repair kit.

Taking out the emergency tire
puncture repair kit

Repairing a flat tire

WARNING

Observe the following when repairing a

flat tire.

●

Stop your vehicle in a safe and flat

area.

●

Do not touch the wheels or the area

around the brakes immediately after

the vehicle has been driven.

After the vehicle has been driven, the
wheels and the area around the brakes
may be extremely hot. Touching these
areas with hands, feet or other body
parts may result in burns.

●

Perform repairs according to the spec-

ified procedure.

If the procedure is not followed, the tire
sealant may spray.

NOTICE

■

Precautions for repairing a flat tire

●

Perform the emergency repair with-

out removing the nail or screw that has

punctured the tread of the tire. If the

object that has punctured the tire is

removed, repair by the emergency tire

puncture repair kit may not be possi-

ble.

●

The kit is not waterproof. Make sure

that the kit is not exposed to water,

such as when it is being used in the

rain.

●

Do not put the kit directly onto dusty

ground such as sand at the side of the

road. If the kit vacuums up dust, etc., a

malfunction may occur.

●

Make sure to stand the kit with the bot-

tle vertical. The kit cannot work prop-

erly if it is laid on its side.

■

Handling the emergency tire punc-

ture repair kit

●

The compressor power source should

be 12 V DC suitable for vehicle use.

Do not connect the compressor to any

other source.

●

Take care not to allow gasoline to con-

tact the emergency tire puncture

repair kit. If gasoline splatters on the

kit, it may deteriorate.

516

9-4. If a tire is flat

Take out the emergency tire punc-
ture repair kit.

The sticker enclosed with the bottle will be

attached at a specified location. (See step

Pull out the hose and power plug
from the compressor.

Connect the bottle to the compres-
sor.

Insert the bottle straight into the compres-

sor to connect it, and make sure that the

claws are securely engaged to the com-

pressor as shown in the illustration.

Connect the hose to the bottle.

Make sure that the hose is securely con-

nected to the bottle, as shown in the illus-

tration.

NOTICE

●

Place the repair kit in a storage to pre-

vent it from being exposed to dirt or

water.

●

Store the kit in its assigned place out of

reach of children.

●

Do not disassemble or modify the kit.

Do not subject parts such as the air

pressure indicator to impacts. This may

cause a malfunction.

■

To avoid damage to the tire pressure

warning valves and transmitters

When a tire is repaired with liquid seal-

ants, the tire pressure warning valve and

transmitter may not operate properly. If a

liquid sealant is used, contact your Lexus

dealer as soon as possible. After use of

liquid sealant, make sure to replace the

tire pressure warning valve and transmit-

ter when repairing or replacing the tire.

(



P.448)

517

9-4. If a tire is flat

n t

ise

Remove the valve cap from the
valve of the flat tire.

Extend the hose. Remove the air
release cap from the hose.

The air release cap may be used later.

Therefore keep it in a safe place.

Connect the hose to the valve of
the flat tire.

Screw the end of hose clockwise as far as

possible.

Make sure that the compressor
switch is off.

Connect the power plug to the
power outlet socket. (



P.224)

WARNING

Check the following.

●

Make sure that the valve and hose are

securely connected, with the tire

installed on the vehicle.

●

If the hose is not properly connected to

the valve, air leakage may occur or

sealant may be sprayed out.

●

If the hose comes off the valve while

inflating the tire, there is a risk that the

hose will move abruptly due to air

pressure.

518

9-4. If a tire is flat

Attach the sticker provided with the
tire puncture repair kit to a position
easily seen from the driver’s seat.

U.S.A.
Canada

Check the specified tire inflation
pressure.

Tire inflation pressure is specified on the

label as shown. (



P.564)

Start the EV system. (



P.138)

To inject the sealant and inflate the
tire, turn the compressor switch on.

WARNING

Do not attach the vehicle speed warning

sticker to an area other than the one indi-

cated. If the sticker is attached to an area

where an SRS airbag is located, such as

the pad of the steering wheel, it may pre-

vent the SRS airbag from operating

properly.

WARNING

Observe the following precautions.

●

Keep back from the tire while it is

being repaired, as there is a chance of

it bursting while the repair operation is

being performed. If you notice any

cracks or deformation in the tire, turn

off the compressor switch and stop the

repair operation immediately.

●

Do not operate the compressor con-

tinuously for more than 40 minutes.

The kit may overheat if operated for a

long period of time.

●

Parts of the emergency tire puncture

repair kit become hot during opera-

tion. Be careful when handling it during

and after operation.

●

Do not touch the metal connecting

parts of the bottle and compressor

while being used or immediately after,

as they will be extremely hot.

519

9-4. If a tire is flat

n t

ise

Inflate the tire until the specified
pressure is reached.

The sealant will be injected and the
pressure will spike to between 44
psi (300 kPa, 3.0 kgf/cm

or bar)

and 58 psi (400 kPa, 4.0 kgf/cm2
or bar), then gradually decrease.
The air pressure gauge will display
the actual tire inflation pressure
about 1 to 5 minutes after the
switch is turned on.

• Turn the compressor switch off and then

check the tire inflation pressure. Being
careful not to over inflate, check and
repeat the inflation procedure until the
specified tire inflation pressure is
reached.

• The tire can be inflated for about 5 to 20

minutes (depending on the outside tem-
perature). If the tire inflation pressure is
still lower than the specified point after
inflation for 25 minutes, the tire is too
damaged to be repaired. Turn the com-
pressor switch off and contact your

Lexus dealer.

If the tire inflation pressure exceeds the
specified level, let out some air to adjust the
tire inflation pressure. (



P.521, 564)

Make sure that the compressor
switch is off and then disconnect
the power plug from the power out-
let and the hose from the valve of
the tire.

Some sealant may leak when the hose is

removed.

Install the valve cap onto the valve
of the emergency repaired tire.

Attach the air release cap to the
end of the hose.

If the air release cap is not attached, the

sealant may leak and dirty the interior of

the vehicle or ones clothes.

Temporarily store the bottle in the
luggage compartment while it is
connected to the compressor.

To spread the liquid sealant evenly
within the tire, immediately drive
safety for about 3 miles (5 km)
below 50 mph (80 km/h).

WARNING

After inflation of the tire has completed,

the sealant may splatter when the hose is

disconnected or some air is let out of the

tire.

520

9-4. If a tire is flat

After driving, stop your vehicle in a
safe place on a hard, flat surface
and reconnect the emergency tire
puncture repair kit.

Remove the air release cap from the hose

before reconnecting the hose.

Turn the compressor switch on and
wait for several seconds, then turn it

off. Check the tire inflation pres-
sure.

If the tire inflation pressure is below
19 psi (130 kPa, 1.3 kgf/cm

or bar):

The puncture cannot be repaired.
Contact your Lexus dealer.
If the tire inflation pressure is
between 19 psi (130 kPa, 1.3
kgf/cm

or bar) and a point below

the specified level: The tire can be
repaired. Proceed to step

If the tire inflation pressure is at the
specified level (



P.564): Proceed

to step

Even if the tire inflation pressure is at the
recommended level, the tire pressure
warning light may come on/flash.

Turn the compressor switch on to
inflate the tire until the specified tire
inflation pressure is reached. Drive
for about 3 miles (5 km) and then
perform step

Attach the air release cap to the
end of the hose.

If the air release cap is not attached, the

sealant may leak and dirty the interior of

WARNING

Observe the following precautions when

driving to spread the sealant evenly.

●

Drive the vehicle carefully at a low

speed. Be especially careful when

turning and cornering.

●

If the vehicle does not drive straight or

you feel a pull through the steering

wheel, stop the vehicle and check the

following:

• Tire condition. The tire may have sepa-

rated from the wheel.

• Tire inflation pressure. If the tire infla-

tion pressure is 19 psi (130 kPa, 1.3
kgf/cm

or bar) or below, this may indi-

cate severe tire damage.

521

9-4. If a tire is flat

When trouble

ari

ses

the vehicle or ones clothes.

Store the bottle in the luggage
compartment while it is connected
to the compressor.

Taking precautions to avoid sud-
den braking, sudden acceleration
and sharp turns, drive carefully at
under 50 mph (80 km/h) to your
Lexus dealer that is less than 62
miles (100 km) away for tire repair
or replacement.

When having the tire repaired or replaced,

make sure to tell the Lexus dealer that the

sealant is injected.
After using the emergency tire puncture

repair kit, have the vehicle inspected and

the tire pressure warning valve and trans-

mitter replaced by your Lexus dealer. Oth-

erwise the tire inflation pressure may not

be able to be measured correctly.

Disconnect the hose from the valve.

Install the air release cap to the end
of the hose and push the protrusion

on the air release cap into the valve
to let some air out.

Disconnect the hose from the valve,
remove the air release cap from the
hose and then reconnect the hose.

Turn the compressor switch on for a
few seconds and then turn it off and
check the tire inflation pressure.

If the air pressure is lower than the speci-

fied level, turn the compressor switch on

again and repeat the inflation procedure

until the specified pressure is reached.

Decreasing the tire inflation pres-
sure when a tire is overinflated

522

9-5. If a door cannot be opened or locked

9-5.If a door cannot be opened or locked

New genuine mechanical keys can be
made by your Lexus dealer using
another mechanical key and the key
number stamped on your key number
plate.



The smart access system with
push-button start may have been
disabled by a customize setting.

In this case, change the customize setting
to enable the smart access system with
push-button start.



The electronic key may have been
set to battery saving mode.

Battery saving mode has been set, cancel
it.



The battery of the electronic key
may be discharged.

Replace the battery.
Using the mechanical key.



The 12-volt battery may be dis-
charged.

Restarting the EV system using the jumper
(or booster) cables. (



P.526)

If a key has been lost

NOTICE

If the electronic key remains lost, the risk

of vehicle theft increases significantly.

Visit your Lexus dealer immediately with

all remaining electronic keys and the

card key (if equipped) that were pro-

vided with your vehicle.

When the doors/windows
cannot be operated using an
electronic key

If communication between the
electronic key and vehicle is inter-
rupted or the electronic key cannot
be used because the battery is
depleted, the smart access system
with push-button start and wireless
remote control cannot be used.

NOTICE

When taking the vehicle to your Lexus

dealer due to a malfunction of the smart

access system with push-button start,

make sure to bring all registered elec-

tronic keys (including the card key).

523

9-5. If a door cannot be opened or locked

n t

ise

Replace the battery with a new one if it
is depleted.
The battery for the card key is available
only at Lexus dealers. Your Lexus
dealer can replace the battery for you.
Prepare the following before replacing
the battery:



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2032

■

Use a CR2032 lithium battery

●

Batteries can be purchased at your Lexus

dealer, local electrical appliance shops or

camera stores.

●

Replace only with the same or equivalent

type recommended by the manufacturer.

●

Dispose of used batteries according to

the local laws.

■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart access system with push-but-

ton start and wireless remote control will

not function properly.

●

The operational range will be reduced.

Take out the mechanical key.

Remove the cover.

To prevent damage to the key, cover the tip

of the flathead screwdriver with a tape.

Remove the depleted battery.

Insert a new battery with the “+” terminal

facing up.

Replace the electronic key bat-
tery

WARNING

■

Battery precautions

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

●

Do not swallow the battery. Doing so

may cause chemical burns.

●

A coin battery or button battery is

used in the electronic key. If a battery is

swallowed, it may cause severe chemi-

cal burns in as little as 2 hours and may

result in death or serious injury.

●

Keep away new and removed batteries

from children.

●

If the cover cannot be firmly closed,

stop using the electronic key and stow

the key in the place where children

cannot reach, and then contact your

Lexus dealer.

524

9-5. If a door cannot be opened or locked

To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be
inserted in one direction, as the key
only has a groove on one side. If the

key cannot be inserted in a lock cylin-
der, turn it over and attempt to insert it
again.
After using the mechanical key, return
it to its original position and carry it
with the electronic key. If the electronic
key battery is depleted, the entry func-
tion is not operating properly, or the
vehicle 12-volt battery is discharged,
you will need the mechanical key.

■

If the incorrect key is used

The key cylinder rotates freely to isolate

inside mechanism.

■

Card key (if equipped)

●

If it is difficult to take out the mechanical

key, push down the release button using a

pen tip, etc. If it is still difficult to pull it out,

use a coin, etc.

WARNING

●

If you accidentally swallow a battery or

put a battery into a part of your body,

get emergency medical attention

immediately.

■

To prevent battery explosion or leak-

age of flammable liquid or gas

●

Replace the battery with a new battery

of the same type. If a wrong type of

battery is used, it may explode.

●

Do not expose batteries to extremely

low pressure due to high altitude or

extremely high temperatures.

●

Do not burn, break or cut a battery.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of appropri-

ate size. Applying excessive force may

deform or damage the cover.

■

For normal operation after replacing

the battery

Observe the following precautions to

prevent accidents:

●

Always work with dry hands.

Moisture may cause the battery to rust.

●

Do not touch or move any other com-

ponent inside the remote control.

●

Do not bend either of the battery ter-

minals.

Using the mechanical key

NOTICE

Do not apply excess force when inserting

the mechanical key into the card key.

Doing so may damage the card key.

525

9-5. If a door cannot be opened or locked

n t

ise

●

To store the mechanical key in the card

key, insert it while pressing the release

button.

Insert a plastic card, etc. into the
gap in the door handle to pry up the
cover.

To avoid damage, do not apply excessive

force to the cover.

Remove the cover by pressing it on
the rear.

Use the mechanical key in order to
perform the following operations:

Unlocks all the doors

Turning the key unlocks the driver’s door.
Turning the key again unlocks the other
doors.

Locks all the doors

■

Key linked functions

Opens the windows (turn and hold)

Closes the windows (turn and hold)

: These settings must be customized at

your Lexus dealer.

Locking/unlocking the doors

WARNING

Operate the power window after check-

ing to make sure that there is no possibil-

ity of any passenger having any of their

body parts caught in the window. Also,

do not allow children to operate the

mechanical key. It is possible for children

and other passengers to get caught in

the power window.

526

9-5. If a door cannot be opened or locked

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

The EV system cannot be started by

push-starting.

Confirm that the electronic key is being carried.

When connecting the jumper (or booster) cables, depending on the situation, the alarm

Restarting the EV system when
the 12-volt battery is discharged

WARNING

■

Avoiding 12-volt battery fires or

explosions

Observe the following precautions to

prevent accidentally igniting the flamma-

ble gas that may be emitted from the

12-volt battery:

●

Make sure each jumper cable is con-

nected to the correct terminal and that

it is not unintentionally in contact with

any other than the intended terminal.

●

Do not allow the other end of the

jumper cable connected to the “+” ter-

minal to come into contact with any

other parts or metal surfaces in the

area, such as brackets or unpainted

metal.

●

Do not allow the + and - clamps of the

jumper cables to come into contact

with each other.

●

Do not smoke, use matches, cigarette

lighters or allow open flame near the

12-volt battery.

■

12-volt battery precautions

The 12-volt battery contains poisonous

and corrosive acidic electrolyte, while

related parts contain lead and lead com-

pounds. Observe the following precau-

tions when handling the 12-volt battery:

●

When working with the 12-volt battery,

always wear safety glasses and take

care not to allow any battery fluids

(acid) to come into contact with skin,

clothing or the vehicle body.

●

Do not lean over the 12-volt battery.

●

In the event that battery fluid comes

into contact with the skin or eyes,

immediately wash the affected area

with water and seek medical attention.

Place a wet sponge or cloth over the

affected area until medical attention

can be received.

●

Always wash your hands after handling

the 12-volt battery support, terminals,

and other battery-related parts.

●

Do not allow children near the 12-volt

battery.

528

9-5. If a door cannot be opened or locked

Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Metallic point shown in the illustration

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

Open and close any of the doors of your vehicle with the power switch off.

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

Make sure the “READY” indicator comes on.

If the indicator light does not come on, contact your Lexus dealer.

Once the EV system has started, remove the jumper cables in the exact reverse
order from which they were connected.

Close the positive (+) battery terminal cover.

Once the EV system starts, have the vehicle inspected at your Lexus dealer as soon as pos-

sible.

NOTICE

■

12-volt battery precautions

When connecting the jumper cables, ensure that they do not become entangled in the

cooling fan or belt.

■

When connecting jumper cables

Make sure to connect jumper cables to the specified terminals and connecting point.

Failure to do so may adversely affect the electronic devices or damage to them.

529

9-5. If a door cannot be opened or locked

n t

ise

If a door cannot be opened using the
door opener switch, it can be opened
using a manual release handle.



Outside the vehicle

Pull the manual release handle to
open the door.
Normally, the manual release handles
cannot be used to open the doors.
To open a door, enable manual release
handle operation. (



P.529)



Inside the vehicle

Pull the manual release handle
twice to open the door.
Pulling the handle once will enable
operation. Pulling the handle again will
open the door.

■

Manual release handle operating condi-

tions

●

If the vehicle is involved in a severe frontal

or rear collision, manual release handle

operation will be enabled for all of the

doors.

However, the manual release handle may

not become operable depending on the

force of the impact and conditions of the

collision.

●

When the 12-volt battery voltage drops

slowly while a door was unlocked

It may not work depending on how it is low-

ered.

●

When manual release handle operation

is enabled from inside the vehicle

●

When manual release handle operation

is enabled from outside the vehicle using

a mechanical key

If a door cannot be opened
using the door opener switch

Operating a manual release
handle

NOTICE

Normally, the manual release handles

cannot be used to open the doors. To

enable manual release handle operation,

perform the following. If the following is

not performed and/or a manual release

handle is operated with force, it may

deform or be damaged.

530

9-5. If a door cannot be opened or locked

■

Conditions which manual release han-

dle operation is disabled

●

Normally, operation of the outside man-

ual release handles is disabled, and they

cannot be used to open the doors.

When operation is enabled by operating a

manual release handle or using a mechani-

cal key, operation will be disabled automat-

ically if the door is opened using the door

opener switch or locked.

●

Operation of the inside manual release

handles is disabled when the power

switch is in ON, and they cannot be used

to open the doors.

When operation is enabled by operating a

manual release handle or using a mechani-

cal key, operation will be disabled automat-

ically if the door is opened using the door

opener switch or locked.

●

To prevent a door from being opened

accidentally, when the power switch is in

ON, after an inside manual release han-

dle is operated once, operation will auto-

matically be disabled after approximately

1 second.

Operation of a manual release handle
can be enabled by unlocking a door
with the mechanical key. (



P.524)

Insert a plastic card, etc. into the
gap in the door handle to pry up the
cover.

To avoid damage, do not apply excessive

force to the cover.

Remove the cover by pressing it on
the rear.

Using the mechanical key, turn the
lock cylinder to the unlock side to
enable the manual release handle
operation.

The mechanical key can only be inserted in

one direction, as the key only has a groove

on one side.
If the key cannot be inserted in a lock cylin-

der, turn it over and re-attempt to insert it.

Enabling outside manual release
handle operation using a
mechanical key

Lexus RZ450E (2023 year). Manual in english - page 16