Lexus RX350h (2024 year). Manual in english

506

7-1. Essential information

not operate, the engine and motor stop, and

the vehicle may not be able to get moving.

■

Using an emergency escape hammer

Laminated glass

is used in the windshield

and the windows on this vehicle.
Laminated glass cannot be shattered with
an emergency 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

■

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 adrift, which

may lead to death.

A
B

507

7-2. Steps to take in an emergency

n t

ris

7-2.Steps to take in an emergency



From the front

Use a towing dolly under the rear
wheels.



From the rear

Use a towing dolly under the front
wheels.

If your vehicle needs to be
towed

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

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

Towing with a wheel-lift type
truck

WARNING

Observe the following precautions. Fail-

ure to do so may result in death or seri-

ous injury.

■

When towing the vehicle

Be sure to transport the vehicle with all

four wheels raised off the ground. If the

vehicle is towed with the tires contacting

the ground, the drivetrain or related

parts may be damaged, the vehicle may

fly off the truck, or electricity generated

by the operation of the motor may cause

a fire to occur depending on the nature

of the damage or malfunction.

NOTICE

■

To prevent damage to the vehicle

when towing using a wheel-lift type

truck

●

Do not tow the vehicle from the rear

when the power switch is off. The

steering lock mechanism is not strong

enough to hold the front wheels

straight.

●

When raising the vehicle, ensure ade-

quate ground clearance for towing at

the opposite end of the raised vehicle.

Without adequate clearance, the vehi-

cle could be damaged while being

towed.

508

7-2. Steps to take in an emergency

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



Fluid leaks under the vehicle
(Water dripping from the air condi-
tioning after use is normal.)



Flat-looking tires or uneven tire
wear



Engine coolant temperature gauge
continually points higher than nor-
mal



Changes in exhaust sound



Excessive tire squeal when corner-
ing



Strange noises related to the sus-
pension system



Pinging or other noises related to
the hybrid system



Engine missing, stumbling or run-
ning roughly



Appreciable loss of power



Vehicle pulls heavily to one side
when braking

NOTICE

■

Towing with a sling-type truck

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

vent body damage.

Using a flatbed truck

NOTICE

■

To prevent damage to the vehicle

during emergency towing

Do not secure cables or chains to the

suspension components.

If you think something is
wrong

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

Visible symptoms

Audible symptoms

Operational symptoms

510

7-2. Steps to take in an emergency

■

Brake system warning light (warning buzzer)

■

Brake system warning light (warning buzzer)

■

High coolant temperature warning light

(warning buzzer)

: This light illuminates on the multi-information display.

If a warning light turns on or a warning buzzer sounds

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

Actions to the warning lights or warning buzzers

Warning light

Details/Actions

(U.S.A.)

(red)

(Canada)

Indicates that:



The brake fluid level is low; or



The brake system is malfunctioning



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

Warning light

Details/Actions

(yellow)

Indicates a malfunction in:



The regenerative braking system;



The electronically controlled brake system; or



The parking brake system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates that the engine coolant temperature is too high



Immediately stop the vehicle in a safe place.
Handling method (



P.555)

511

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Hybrid system overheat warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Charging system warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Low engine oil pressure warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Malfunction indicator lamp

■

SRS warning light (warning buzzer)

Warning light

Details/Actions

Indicates the hybrid system has overheated



Stop the vehicle in a safe place.
Handling method (



P.557)

Warning light

Details/Actions

Indicates a malfunction in the vehicle’s charging system



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

Warning light

Details/Actions

Indicates that the engine oil pressure is too low



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

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The hybrid system;



The electronic engine control system;



The electronic throttle control system; or



RX500h: The electronic transmission control system



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

Warning light

Details/Actions

Indicates a malfunction in:



The SRS airbag system; or



The seat belt pretensioner system



Have the vehicle inspected by your Lexus dealer immediately.

512

7-2. Steps to take in an emergency

■

ABS warning light (warning buzzer)

■

Inappropriate pedal operation warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Electric power steering system warning light (warning buzzer)

Warning light

Details/Actions

(U.S.A.)

(Canada)

Indicates a malfunction in:



The ABS; or



The brake assist system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

When a buzzer sounds:



Brake Override System is malfunctioning



Drive-Start Control is malfunctioning



Drive-Start Control is operating



PKSB (Parking Support Brake) (if equipped) is operating



Follow the instructions displayed on the multi-information display.

When a buzzer does not sound:
Brake Override System is operating



Release the accelerator pedal and depress the brake pedal.

Warning light

Details/Actions

(red)

(yellow)

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



Have the vehicle inspected by your Lexus dealer immediately.

513

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Low fuel level warning light

■

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

: Driver’s seat belt warning buzzer:

The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the power switch is turned to ON, 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.

■

Rear passengers’ seat belt reminder light (warning buzzer)

: Rear passengers’ seat belt warning buzzer:

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

Warning light

Details/Actions

Indicates that remaining fuel is approximately 2.6 gal. (10.0 L, 2.2 Imp.
gal.) or less



Refuel the vehicle.

Warning light

Details/Actions

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



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

Warning light

Details/Actions

(Vehicles without a

head-up display)

(Vehicles with a

head-up display)

Warns the rear passengers to fasten their seat belts



Fasten the seat belt.

514

7-2. Steps to take in an emergency

■

Tire pressure warning light (warning buzzer)

■

Intuitive parking assist OFF indicator (warning buzzer)

■

PCS warning light (warning buzzer)

■

LTA indicator (warning buzzer)

Warning light

Details/Actions

When the light comes on (a buzzer sounds):



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.



Low tire inflation pressure from flat tire



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

When the light comes on after blinking for approximately 1 minute (a
buzzer does not sounds):
Malfunction in the tire pressure warning system



Have the system checked by your Lexus dealer.

Warning light

Details/Actions

(if equipped)

Indicates a malfunction in the intuitive parking assist function



Have the vehicle inspected by your Lexus dealer immediately.

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



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



P.322)

Warning light

Details/Actions

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



Follow the instructions displayed on the multi-information display.

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

Warning light

Details/Actions

(orange)

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



Follow the instructions displayed on the multi-information display.

515

7-2. Steps to take in an emergency

When trouble

ari

ses

■

LDA indicator (warning buzzer)

■

PDA indicator (warning buzzer)

■

Dynamic radar cruise control indicator (warning buzzer)

■

Cruise control indicator (warning buzzer)

■

Driving assist information indicator

Warning light

Details/Actions

(orange)

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



Follow the instructions displayed on the multi-information display.

Warning light

Details/Actions

(orange)

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



Follow the instructions displayed on the multi-information display.

Warning light

Details/Actions

(orange)

Indicates a malfunction in the dynamic radar cruise control.



Follow the instructions displayed on the multi-information display.

Warning light

Details/Actions

(orange)

Indicates a malfunction in the cruise control.



Follow the instructions displayed on the multi-information display.

Warning light

Details/Actions

Indicates either of the following systems may be malfunctioning.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



Follow the instructions displayed on the multi-information display.

Indicates one of the following systems is malfunctioning or disabled.



PKSB (Parking Support Brake)



RCD (Rear Camera Detection)



BSM (Blind Spot Monitor)



RCTA (Rear cross traffic alert)



Safe Exit Assist (with door opening control)



Follow the instructions displayed on the multi-information display.

516

7-2. Steps to take in an emergency

: If equipped

■

Slip indicator

■

Parking brake indicator (warning buzzer)

■

Brake hold operated indicator (warning buzzer)

■

Warning buzzer

In some cases, the buzzer may not be heard

due to being in a noisy location or audio

sound.

■

Front passenger detection sensor, seat

belt reminder and warning buzzer

●

If luggage is placed on the front passen-

ger seat, the front passenger detection

sensor may cause the warning light to

flash and the warning buzzer to sound

even if a passenger is not sitting in the

seat.

●

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

sor may not detect a passenger, and the

warning light may not operate properly.

■

SRS warning light

This warning light indicates problems with

the following:

●

Airbag sensor assembly

●

Front impact sensors

●

Side impact sensors (front door)

●

Side impact sensors (front)

●

Front passenger occupant classification

Warning light

Details/Actions

(illuminates)

Indicates a malfunction in:



The VSC system;



The TRAC system;



The Trailer Sway Control;



The Trail Mode function; or



The hill-start assist control system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(flashes)

(U.S.A.)

(flashes)

(Canada)

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



Operate the parking brake switch once again.

This light comes on the parking brake is not released. If the light turns off
after the parking brakes is fully released, the system is operating nor-
mally.
Indicates a malfunction in the parking brake system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle inspected by your Lexus dealer immediately.

517

7-2. Steps to take in an emergency

When trouble

ari

ses

sensors

●

Driver’s seat position sensor

●

Front passenger’s seat belt buckle switch

●

“AIR BAG ON” indicator light

●

“AIR BAG OFF” indicator light

●

Seat belt pretensioners

●

SRS airbags

●

SRS system related wiring harnesses and

power sources

■

If the malfunction indicator lamp comes

on while driving

First check the following:

●

Is the fuel tank empty?

If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?

If it is, tighten it securely.

The light will go off after several driving

trips.
If the light does not go off even after several

trips, contact your Lexus dealer as soon as

possible.

■

Electric power steering system warning

light (warning buzzer)

When the 12-volt battery charge becomes

insufficient or the voltage temporarily

drops, the electric power steering system

warning light may come on and the warning

buzzer may sound.

■

When the tire pressure warning light

comes on

Inspect the tires to check if a tire is punc-

tured.
If a tire is punctured:



P.534

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 immedi-

ately.



If the tire pressure warning light comes

After the temperature of the tires has low-

ered sufficiently, check the inflation pres-

sure 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.482)

If the warning light does not turn off even

after several minutes have elapsed since

performing the tire inflation pressure set-

ting procedure, have the vehicle inspected

by your Lexus dealer immediately.

■

The tire pressure warning light may

come on due to natural causes

The tire pressure warning light may come

on due to natural causes such as natural air

leaks and tire inflation pressure changes

caused by temperature. In this case, adjust-

ing the tire inflation pressure will turn off the

warning light (after a few minutes).

■

When a tire is replaced with a spare tire

The spare tire is not equipped with a tire

pressure warning valve and transmitter. If a

tire goes flat, the tire pressure warning light

will not turn off even though the flat tire has

been replaced with the spare tire. Replace

the spare tire with the repaired tire and

adjust the tire inflation pressure. The tire

pressure warning light will go off after a few

minutes.

■

Conditions that the tire pressure warn-

ing system may not function properly



P.480

518

7-2. Steps to take in an emergency

WARNING

■

If both the ABS and the brake system

warning lights remain on

Stop your vehicle in a safe place immedi-

ately and contact your Lexus dealer.

The vehicle will become extremely

unstable during braking, and the ABS

system may fail, which could cause an

accident resulting in death or serious

injury.

■

When the electric power steering

system warning light comes on

When the light comes on yellow, the

assist to the power steering is restricted.

When the light comes on red, the assist

to the power steering is lost and handling

operations of the steering wheel become

extremely heavy.

When steering wheel operations are

heavier than usual, grip the steering

wheel firmly and operate it using more

force than usual.

■

If the tire pressure warning light

comes on

Be sure to observe the following precau-

tions.

Failure to do so could cause a loss of

vehicle control and result in death or

serious injury.

●

Stop your vehicle in a safe place as

soon as possible. Adjust the tire infla-

tion 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,

change it with the spare tire and have

the flat tire repaired by the nearest

Lexus dealer.

●

Avoid abrupt maneuvering and brak-

ing.

If the vehicle tires deteriorate, you

could lose control of the steering

wheel or the brakes.

■

If a blowout or sudden air leakage

should occur

The tire pressure warning system may

not activate immediately.

WARNING

■

Maintenance of the tires

Each tire, including the spare (if pro-

vided), should be checked monthly when

cold and inflated to the inflation pressure

recommended by the vehicle manufac-

turer on the vehicle placard or tire infla-

tion pressure label (tire and load

information label). (If your vehicle has

tires of a different size than the size indi-

cated on the vehicle placard or tire infla-

tion pressure label [tire and load

information label], you should determine

the proper tire inflation pressure for

those tires.)

As an added safety feature, your vehicle

has been equipped with a tire pressure

monitoring system (TPMS-tire pressure

warning system) that illuminates a low

tire pressure telltale (tire pressure warn-

ing light) when one or more of your tires

is significantly under-inflated. Accord-

ingly, when the low tire pressure telltale

(tire pressure warning light) illuminates,

you should stop and check your tires as

soon as possible, and inflate them to the

proper pressure. Driving on a signifi-

cantly under-inflated tire causes the tire

to overheat and can lead to tire failure.

Under-inflation also reduces fuel effi-

ciency and tire tread life, and may affect

the vehicle’s handling and stopping abil-

ity.

Please note that the TPMS (tire pressure

warning system) is not a substitute for

proper tire maintenance, and it is the

driver’s responsibility to maintain correct

tire pressure, even if under-inflation has

not reached the level to trigger illumina-

tion of the TPMS low tire pressure telltale

(tire pressure warning light).

519

7-2. Steps to take in an emergency

n t

ris

■

Warning messages

The warning messages explained below

may differ from the actual messages

according to operation conditions and vehi-

cle specifications.

■

Warning buzzer

In some cases, the buzzer may not be heard

due to being in a noisy location or audio

sound.

Your vehicle has also been equipped with

a TPMS (tire pressure warning system)

malfunction indicator to indicate when

the system is not operating properly. The

TPMS (tire pressure warning system)

malfunction indicator is combined with

the low tire pressure telltale (tire pres-

sure warning light). When the system

detects a malfunction, the telltale will

flash for approximately one minute and

then remain continuously illuminated.

This sequence will continue upon subse-

quent vehicle start-ups as long as the

malfunction exists. When the malfunction

indicator is illuminated, the system may

not be able to detect or signal low tire

pressure as intended.

TPMS (tire pressure warning system)

malfunctions may occur for a variety of

reasons, including the installation of

replacement or alternate tires or wheels

on the vehicle that prevent the TPMS

(tire pressure warning system) from func-

tioning properly. Always check the

TPMS (tire pressure warning system)

malfunction telltale after replacing one

or more tires or wheels on your vehicle to

ensure that the replacement or alternate

tires and wheels allow the TPMS (tire

pressure warning system) to continue to

function properly.

NOTICE

■

To ensure the tire pressure warning

system operates properly

Do not install tires with different specifi-

cations or makers, as the tire pressure

warning system may not operate prop-

erly.

If a warning message is dis-
played

The multi-information display
shows warnings for system malfunc-
tions and incorrectly performed
operations, and messages that indi-
cate a need for maintenance.
When a message is displayed, per-
form the appropriate corrective
action for the message.

If a warning message is displayed
again after the appropriate actions
have been performed, contact your
Lexus dealer.

Additionally, if a warning light
comes on or flashes at the same
time that a warning message is dis-
played, take the appropriate cor-
rective action for the warning light.
(



P.510)

520

7-2. Steps to take in an emergency

■

If “Engine Oil Level Low Add or Replace” is displayed

■

If “Hybrid System Stopped Steering Power Low” is displayed

■

If “Power Reduced to Lower Engine Temp” is displayed (RX500h)

■

If “Auto Power OFF to Conserve Battery” is displayed

Messages and warnings

Cause

Actions

The engine oil level may be low.

Check the level of the engine oil, and add engine oil
if necessary. (



P.470)

This message may be displayed if the vehicle is
stopped on a slope. Move the vehicle to a level sur-
face and check if the message disappears.

Cause

Actions

This message is displayed if the
hybrid system is stopped while driv-
ing.

When steering wheel operations are heavier than
usual, grip the steering wheel firmly and operate it
using more force than usual.

Cause

Actions

This message may be displayed
when the engine coolant tempera-
ture is high.
At that time, the engine power out-
put is reduced until the temperature
decreases to the specified level.

It is still possible to continue driving normally, mean-
while the acceleration performance or vehicle
speed may be lowered.
After driving for a while and the engine coolant tem-
perature is dropped, this message will disappear and
engine power output will resume once the engine
coolant temperature has decreased to normal.
If after driving for a while the message does not dis-
appear or it comes on and off frequently, contact
your Lexus dealer.

Cause

Actions

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

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

521

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “Shift is in N Release Accelerator Before Shifting” is displayed

■

If “Press brake when vehicle is stopped Hybrid system may overheat” is dis-
played

■

If “12-Volt Battery Charging System Malfunction Stop in a Safe Place See
Owner’s Manual” is displayed

■

If “Traction battery needs to be protected. Shift into P to restart.” is displayed
(RX350h)

Cause

Actions

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

RX500h: Release the accelerator pedal and
change the shift position to D, M or R.
RX350h: Release the accelerator pedal and
change the shift position to D, S or R.

Cause

Actions

The message may be displayed
when the accelerator pedal is
depressed to hold the vehicle while
the vehicle is stopped on an incline,
etc.

The hybrid system may overheat. Release the accel-
erator pedal and depress the brake pedal.

Cause

Actions

It may indicate a malfunction.

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

Cause

Actions

This message is displayed when the
hybrid battery (traction battery)
charge has become extremely low
because the vehicle has been left
with the N shift position selected for
a certain amount of time.

When operating the vehicle, shift to P and restart the
hybrid system.

522

7-2. Steps to take in an emergency

■

If “Traction battery needs to be protected. Refrain from the use of N position.”
is displayed (RX350h)

■

If “Hybrid System Overheated Output Power Reduced” is displayed

■

If “Tire Set Switching Incomplete Try Tire Set Registration Again See Owner’s
Manual” is displayed

■

If “Headlight System Malfunction Visit Your Dealer” is displayed

: If equipped

■

If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed

Cause

Actions

This message may be displayed
when the shift position is in N.

As the hybrid battery (traction battery) cannot be
charged when the shift position is in N, shift the shift
position to P when the vehicle is stopped.

Cause

Actions

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



P.555

Cause

Actions

The wheel set change could not be
completed.

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

Cause

Actions

The following systems may be malfunctioning.



The LED headlight system



The automatic headlight leveling system



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)

Have the vehicle inspected by your
Lexus dealer immediately.

Actions



P.555

523

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “Access System with Elec.Key malfunction See owner’s manual” is displayed

■

If “Braking Power Low Stop in a Safe Place See Owner’s Manual” is displayed

■

If “Oil pressure low Stop in a safe place See owner’s manual” is displayed

■

If “High Power Consumption Power to Climate Temporarily Limited” is dis-
played

■

If a message that indicates the need for visiting your Lexus dealer is displayed

Cause

Actions

It may indicate a malfunction.

Have the vehicle checked by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

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

Cause

Actions

It may indicate a malfunction.

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

Cause

Actions

If this message is displayed fre-
quently, there is a possible malfunc-
tion relating to the charging system
or the 12-volt battery may be deteri-
orating.

Have the vehicle checked by your Lexus dealer.

Cause

Actions

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

Have the vehicle inspected by your Lexus dealer
immediately.

524

7-2. Steps to take in an emergency

■

If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is displayed

■

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

■

If “Shift System Malfunction Driving Unavailable” is displayed

■

If a message that indicates the need for the shift lever operation is displayed

■

If “Shift System Malfunction Apply Parking Brake Securely When Parking
See Owner’s Manual” is displayed

Cause

Actions

The air intake vent or filter of the
hybrid battery (traction battery) may
be clogged, the air intake vent may
be blocked, or there may be a gap in
the duct.



If the air intake vent or filter of the hybrid battery
(traction battery) is dirty, clean them. (



P.492)



If the warning message is shown when the air
intake vent and filter the hybrid battery (traction
battery) are not dirty, have the vehicle inspected
at your Lexus dealer.

Cause

Actions

There is a malfunction in the shift
control system.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

There is a malfunction in the shift
control system.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

To prevent the shift lever from being operated incor-
rectly 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.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

525

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “P Switch Malfunction Apply Parking Brake Securely When Parking See
Owner’s Manual” is displayed

■

If “Shift System Unavailable Apply Parking Brake Securely When Parking See
Owner’s Manual” is displayed

■

If “Shift System Malfunction See Owner’s Manual” is displayed

■

If “Shift System Malfunction Stop in a Safe Place See Owner’s Manual” is dis-
played

■

If “Battery Low Shifting Unavailable See Owner’s Manual” is displayed

■

If “Maintenance Required” is displayed

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

Indicates that all maintenance is
required to correspond to the driven
distance on the maintenance sched-
ule

Comes on approximately 5000 miles (8000 km)
after the message has been reset. (The indicator will
not work properly unless the message has been
reset.) Perform the necessary maintenance. Please
reset the message after the maintenance is per-
formed. (



P.458)

526

7-2. Steps to take in an emergency

: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual Supple-

ment” for the maintenance interval applicable to your vehicle.

■

If “Engine Maintenance Required Visit Your Dealer” is displayed

■

If “System Malfunction Visit Your Dealer” is displayed

: If equipped

Cause

Actions

The engine or an engine component
is malfunctioning.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)



BSM (Blind Spot Monitor)



RCTA (Rear Cross Traffic Alert)



Safe Exit Assist



Intuitive parking assist



PKSB (Parking Support Brake)



RCD (Rear camera detection)

Have the vehicle inspected by your
Lexus dealer immediately.

527

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “System Stopped See Owner’s Manual” is displayed

: If equipped

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



RSA (Road Sign Assist)



PDA (Proactive Driving Assist)



BSM (Blind Spot Monitor)



RCTA (Rear Cross Traffic Alert)



Safe Exit Assist



Intuitive parking assist



PKSB (Parking Support Brake)



RCD (Rear camera detection)

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 covering them. Remove
them if any. (



P.245)



Vehicles with RCD: Check if the
back door is open.

Indicates the sensors may not be operating properly.
(



P.249, 314, 319, 322, 332, 335, 344, 345,

346, 348)



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



P.311, 317)



Check the sensors including cam-
era sensors used by the Intuitive
parking assist

, PKSB

, or RCD

for foreign matter covering them.
Remove them if any. (



P.320)



When problems are solved and
the sensors are operational, this
indication may disappear by itself.

528

7-2. Steps to take in an emergency

■

If “System Stopped Front Camera Low Visibility See Owner’s Manual” is dis-
played

: If equipped

■

If “System Stopped Front Camera Out of Temperature Range Wait until Nor-
mal Temperature” is displayed

: If equipped

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



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 stick-
ers, etc. to clear the obstruction in
front of the front camera.

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



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 sys-
tem to decrease the temperature
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 system to
increase the temperature around
the front camera

529

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “System Stopped Front Radar Sensor Blocked Clean Radar Sensor” is dis-
played

: If equipped

■

If “System Stopped Front Radar Sensor Out of Temperature Range Wait until
Normal Temperature” is displayed

: If equipped

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



PDA (Proactive Driving Assist)

Follow the following correction
methods.



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



P.246)



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

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

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



PDA (Proactive Driving Assist)

The temperature of the radar sensor
is outside of the operating range.
Wait for the temperature to become
appropriate.

530

7-2. Steps to take in an emergency

■

If “System Stopped Front Radar In Self Calibration See Owner’s Manual” is
displayed

: If equipped

■

If “Driver Monitor Out of Temperature Range Wait until Normal Tempera-
ture” is displayed (on some models)

■

If “Unavailable Activation Condition not Satisfied See Owner’s Manual” is
displayed (on some models)

■

If “Cruise Control Unavailable See Owner’s Manual” is displayed

Cause

Actions

Indicates one of the following systems is disabled.



PCS (Pre-Collision System)



LDA (Lane Departure Alert)



LTA (Lane Tracing Assist)



LCA (Lane Change Assist)



AHB (Automatic High Beam)



AHS (Adaptive High-beam System)



Dynamic radar cruise control system



PDA (Proactive Driving Assist)

Follow the following correction
methods.



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



P.246)



The radar sensor may be mis-
aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.

Cause

Actions

Indicates one of the following sys-
tems is disabled.



Driver monitor



Traffic Jam Assist

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

Cause

Actions

The LCA function cannot be

used as the operating conditions
have not been met. (



P.268)

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

Cause

Actions

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.

531

7-2. Steps to take in an emergency

When trouble

ari

ses

■

If “Driver Monitor Unavailable See Owner’s Manual” is displayed (on some
models)

■

If “Parking Assist Unavailable Low Visibility See Owner’s Manual” is dis-
played (on some models)

■

If “Check Engine” is displayed

■

If “Hybrid System Malfunction” is displayed

■

If “Accelerator System Malfunction” is displayed

■

If “Traction battery system malfunction” is displayed

Cause

Actions

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.

Cause

Actions

Indicates one of the following sys-
tems is disabled.



PKSB (Parking Support

Brake)



RCD (Rear camera detec-

tion)

Remove any dirt or foreign matter from the rear
cameras.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

Cause

Actions

It may indicate a malfunction.

Have the vehicle inspected by your Lexus dealer
immediately.

533

7-2. Steps to take in an emergency

n t

ris



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



Set the parking brake.



Shift the shift position to P.



Stop the hybrid system.



Turn on the emergency flashers.
(



P.504)

If you have a flat tire

Your vehicle is equipped with a
spare tire. The flat tire can be
replaced with the spare tire.

For details about tires:



P.477

WARNING

■

If you have a flat tire

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, which could result in an

accident.

Before jacking up the vehicle

534

7-2. Steps to take in an emergency

Spare tire
Screwdriver
Jack handle
Towing eyelet
Wheel bolt wrench
Guide pin
Wheel bolt socket
Jack

Location of the spare tire, jack and tools

A
B
C
D

E
F

WARNING

■

Using the tire jack

Observe the following precautions.

Improper use of the tire jack may cause

the vehicle to suddenly fall off the jack,

leading to death or serious injury.

●

Do not use the tire jack for any pur-

pose other than replacing tires or

installing and removing tire chains.

●

Only use the tire jack that comes with

this vehicle for replacing a flat tire.

Do not use it on other vehicles, and do

not use other tire jacks for replacing

tires on this vehicle.

●

Put the jack properly in its jack point.

●

Do not put any part of your body under

the vehicle while it is supported by the

jack.

●

Do not start the hybrid system or drive

the vehicle while the vehicle is sup-

ported by the jack.

535

7-2. Steps to take in an emergency

n t

ris

Secure the deck board using the
hook. (



P.425)

Take out the jack.

Secure the deck board using the
hook. (



P.425)

Loosen the center fastener that
secures the spare tire.

Chock the tires.

WARNING

●

Do not raise the vehicle while some-

one is inside.

●

When raising the vehicle, do not put an

object on or under the jack.

●

Do not raise the vehicle to a height

greater than that required to replace

the tire.

●

Use a jack stand if it is necessary to get

under the vehicle.

●

When lowering the vehicle, make sure

that there is no-one near the vehicle. If

there are people nearby, warn them

vocally before lowering.

■

Replacing a flat tire for vehicles with

power back door

In cases such as when replacing tires,

make sure to canceling the power back

door system (



P.130). Failure to do so

may cause the back door to operate

unintentionally if the power back door

switch is accidentally touched, resulting

in hands and fingers being caught and

injured.

Taking out the jack

Taking out the spare tire

WARNING

■

When storing the spare tire

Be careful not to catch fingers or other

body parts between the spare tire and

the body of the vehicle.

Replacing a flat tire

Flat tire

Wheel chock posi-

tions

Front left-hand side

Behind the rear
right-hand side tire

Front right-hand
side

Behind the rear
left-hand side tire

536

7-2. Steps to take in an emergency

Using a wheel bolt wrench, slightly
loosen the wheel bolts (approxi-
mately one turn).

Turn the tire jack portion by
hand until the notch of the jack is in
contact with the jack point.

The jack point guides are located under

the rocker panel. They indicate the jack

point positions.

Install the wheel bolt wrench to the
jack handle.

Raise the vehicle until the tire is
slightly raised off the ground.

Remove the uppermost wheel bolt
and install the guide pin by
hand.

Turn the guide pin clockwise to tighten it

until it stops.

Remove all the wheel bolts and the
tire.

When resting the tire on the ground, place

the tire so that the wheel design faces up to

Rear left-hand side

In front of the front
right-hand side tire

Rear right-hand side

In front of the front
left-hand side tire

Flat tire

Wheel chock posi-

tions

537

7-2. Steps to take in an emergency

n t

ris

avoid scratching the wheel surface.

Remove any dirt or foreign matter
from the wheel contact surfaces
and wheel bolts.

If foreign matter is on the wheel contact

surface, the wheel bolts may loosen while

the vehicle is in motion, causing the tire to

come off.

Align a wheel bolt hole on the spare
tire with the guide pin, and set the
spare tire on the guide pin.

Securely set the spare tire so that its wheel

is touching the contact surface.

Loosely tighten each wheel bolt by
hand or using a wheel bolt socket

Push the spare tire to prevent it from falling.
Do not use the wheel bolt socket for any-

thing other than loosely tightening the

wheel bolts by hand.

Remove the guide pin and loosely
tighten the wheel bolt as in step

WARNING

■

Replacing a flat tire

Do not touch the disc wheels or the area

around the brakes immediately after the

vehicle has been driven. After the vehicle

has been driven the disc wheels and the

area around the brakes will be extremely

hot. Touching these areas with hands,

feet or other body parts while changing a

tire, etc. may result in burns.

Installing the spare tire

Lexus RX350h (2024 year). Manual in english - page 16