Lexus RC350 (2023 year). Manual in english

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IGNITION ON mode, the tire position

information will not be updated.

If this accidentally occurs, either turn the

engine switch to off and then to IGNITION

ON mode, or initialize the system after

checking that the tire pressure is properly

adjusted.

Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low tire inflation pressure
before serious problems arise.



The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. (



P.71)

The illustration used is intended as an
example, and may differ from the image
that is actually displayed on the multi-infor-
mation display.



If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. (



P.310)

■

Routine tire inflation pressure checks

The tire pressure warning system does not

replace routine tire inflation pressure

checks. Make sure to check tire inflation

pressure as part of your routine of daily

vehicle checks.

■

Tire inflation pressure

●

It may take a few minutes to display the

tire inflation pressure after the engine

switch is turned to IGNITION ON mode.

It may also take a few minutes to display

the tire inflation pressure after inflation

pressure has been adjusted.

●

Tire inflation pressure changes with tem-

perature. The displayed values may also

be different from the values measured

using a tire pressure gauge.

■

Situations in which the tire pressure

warning system may not operate prop-

erly

●

In the following cases, the tire pressure

warning system may not operate prop-

erly.

• If non-genuine Lexus wheels are used.

• A tire has been replaced with a tire that is

not an OE (Original Equipment) tire.

• A tire has been replaced with a tire that is

not of the specified size.

• Tire chains, etc. are equipped.

• An auxiliary-supported run-flat tire is

equipped.

• If a window tint that affects the radio wave

signals is installed.

• If there is a lot of snow or ice on the vehi-

cle, particularly around the wheels or

wheel housings.

• If the tire inflation pressure is extremely

higher than the specified level.

• If tires not equipped with tire pressure

Tire pressure warning system

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6-3. Do-it-yourself maintenance

warning valves and transmitters are used.

• If the ID code on the tire pressure warn-

ing valves and transmitters is not regis-

tered in the tire pressure warning

computer.

●

Performance may be affected in the fol-

lowing situations.

• Near a TV tower, electric power plant,

gas station, radio station, large display,

airport or other facility that generates

strong radio waves or electrical noise

• When carrying a portable radio, cellular

phone, cordless phone or other wireless

communication device

If tire position information is not correctly

displayed due to the radio wave conditions,

the display may be corrected by driving and

changing the radio wave conditions.

●

When the vehicle is parked, the time

taken for the warning to start or go off

could be extended.

●

When tire inflation pressure declines rap-

idly for example when a tire has burst, the

warning may not function.

When replacing the tires or wheels, the
tire pressure warning valve and trans-
mitters must be installed to the wheels
which will be installed to the vehicle.
When new tire pressure warning
valves and transmitters are installed,
new ID codes must be registered in the
tire pressure warning computer and
the tire pressure warning system must
be initialized. (



P.280)

■

Replacing tires and wheels

If the ID code of the tire pressure warning

valve and transmitter is not registered, the

tire pressure warning system will not work

properly. After driving for about 20 min-

utes, the tire pressure warning light blinks

for 1 minute and stays on to indicate a sys-

tem malfunction.

■

The tire pressure warning system
must be initialized in the following
circumstances:



When rotating the tires.



When the tire inflation pressure is
changed such as when changing
traveling speed or load weight.



When changing the tire size.

Installing tire pressure warning
valves and transmitters

NOTICE

■

Repairing or replacing tires, wheels,

tire pressure warning valves, trans-

mitters and tire valve caps

●

When removing or fitting the wheels,

tires or the tire pressure warning

valves and transmitters, contact your

Lexus dealer as the tire pressure warn-

ing valves and transmitters may be

damaged if not handled correctly.

●

Make sure to install the tire valve caps.

If a tire valve cap is not installed, water

may enter the valve and cause it to

corrode, possibly leading to the valve

sticking or air to leak from the tire.

●

When replacing tire valve caps, do not

use tire valve caps other than those

specified. The cap may become stuck.

■

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 or other qualified service shop as

soon as possible. After use of liquid seal-

ant, make sure to replace the tire pres-

sure warning valve and transmitter when

repairing or replacing the tire. (



P.278)

Initializing the tire pressure
warning system

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When the tire pressure warning system
is initialized, the current tire inflation
pressure is set as the benchmark pres-
sure.

■

How to initialize the tire pressure
warning system

Park the vehicle in a safe place, turn
the engine switch off and wait 20
minutes or more.

Initialization cannot be performed while

the vehicle is moving.

Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure level.

Make sure to adjust the tire pressure to the

specified cold tire inflation pressure level.

The tire pressure warning system will oper-

ate based on this pressure level.

Start the engine. (



P.126)

Press and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks slowly
3 times.

Then a message will be displayed on the

multi-information display.

Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.

Initialization is complete when the position

of each tire is determined and the inflation

pressure of each tire is displayed on the

multi-information display.

■

Initialization procedure

●

Make sure to carry out initialization after

adjusting the tire inflation pressure.

Also, make sure the tires are cold before

carrying out initialization or tire inflation

pressure adjustment.

●

If you have accidentally turned the engine

switch off during initialization, it is not

necessary to press the reset switch again

as initialization will restart automatically

when the engine switch has been turned

to IGNITION ON mode for the next

time.

●

If you accidentally press the reset switch

when initialization is not necessary, adjust

the tire inflation pressure to the specified

level when the tires are cold, and conduct

initialization again.

●

While the position of each tire is being

determined and the inflation pressures

are not being displayed on the

multi-information display, if the inflation

pressure of a tire drops, the tire pressure

warning light will come on.

■

If the tire pressure warning system is not

initialized properly

●

In the following situations, initialization

may take longer than usual to be com-

pleted or may not be possible. (Usually,

the vehicle will need to be driven for

approximately 10 to 30 minutes to com-

plete initialization.) If initialization is not

complete after driving approximately 30

minutes, continue driving for a while.

• If the vehicle is driven on an unpaved

road, it may take longer to complete ini-

tialization.

• If the vehicle is backed up while perform-

ing initialization, data collected during ini-

tialization will be cleared and it will take

longer than normal to complete.

• If the vehicle is driven in heavy traffic or

another situation where other vehicles

are driven close by, it may take time for

the system to recognize the tire pressure

warning valve and transmitters of your

vehicle over those of other vehicles.

If initialization is not complete after driving

280

6-3. Do-it-yourself maintenance

for approximately 1 hour, park the vehicle in

a safe place for approximately 20 minutes

and then drive the vehicle again.

●

In the following situations, initialization

will not be started or was not completed

properly and the system will not operate

properly. Perform the initialization proce-

dure again.

• If, when attempting to start initialization,

the tire pressure warning light does not

blink 3 times.

• If, when the vehicle has been driven for

about 20 minutes after performing ini-

tialization, the tire pressure warning light

blinks for approximately 1 minute and

then illuminates.

●

If initialization cannot be completed after

performing the above procedure, con-

tact your Lexus dealer.

Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary
to register the ID codes.

Park the vehicle in a safe place, turn
the engine switch off, wait 20 min-
utes or more, and then start the
engine.

Start the engine. (



P.126)

Press the tire pressure warning
reset switch 3 times quickly.

The tire pressure warning light will blink

slowly 3 times.
Sensor registration mode will be entered

and ID codes registration will begin.
A message will be displayed on the

multi-information display and “- -” will be

displayed for the tire inflation pressure of

each tire.
After this, the tire pressure warning light

will blink for 1 minute and then illuminate.

Wait approximately 2 minutes.

If the ID codes are already registered, the

tire pressure warning light will turn off.



If the tire pressure warning light
turns off

Initialize the tire pressure warning
system. (



P.278)



If the tire pressure warning light
does not turn off

Drive at approximately 25 mph
(40 km/h) or more until the tire
pressure warning light turns off.

Initialize the tire pressure warning
system. (



P.279)

■

When registering ID codes

●

Before performing ID code registration,

make sure that no wheels with tire pres-

sure warning valve and transmitters

installed are near the vehicle.

WARNING

■

When initializing the tire pressure

warning system

Do not operate the tire pressure warning

reset switch without first adjusting the tire

inflation pressure to the specified level.

Otherwise, the tire pressure warning

light may not come on even if the tire

inflation pressure is low, or it may come

on when the tire inflation pressure is

actually normal.

Registering ID codes

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●

Make sure to initialize the tire pressure

warning system after registering the ID

codes. If the system is initialized before

registering the ID codes, the initialized

values will be invalid.

●

As the tires will be warm when registra-

tion is completed, make sure to allow the

tires to cool before performing initializa-

tion.

■

Canceling ID code registration

●

To cancel ID code registration after it has

been started, turn the engine switch off

before driving the vehicle.

If the vehicle is driven after ID code regis-

tration is started, to cancel registration,

perform the ID code registration start

procedure again and turn the engine

switch off before driving.

●

If ID code registration has been canceled,

the tire pressure warning light will blink

for approximately 1 minute when the

engine switch is turned to IGNITION

ON mode and then illuminate. The tire

pressure warning system will be opera-

tional when the tire pressure warning

light turns off.

●

If the warning light does not turn off even

after several minutes have elapsed, ID

code registration may not have been can-

celled correctly. To cancel registration,

perform the ID code registration start

procedure again and then turn the engine

switch off before driving.

■

If ID codes are not registered properly

●

In the following situations, ID code regis-

tration may take longer than usual to be

completed or may not be possible. (Usu-

ally, the vehicle will need to be driven for

approximately 10 to 30 minutes to com-

plete ID code registration.)

If ID code registration is not complete

after driving for approximately 30 min-

utes, continue driving for a while.

• If the vehicle is driven on an unpaved

road, it may take longer than normal to

complete registration.

• If the vehicle is backed up while perform-

ing registration, data collected during

registration will be cleared, and it will take

longer than normal to complete.

• If the vehicle is driven in heavy traffic or

another situation where other vehicles

are driven close by, it may take time for

the system to recognize the tire pressure

warning valve and transmitters of your

vehicle over those of other vehicles.

• If a wheel with a tire pressure warning

valve and transmitter installed is inside or

near the vehicle, registration of the ID

codes for the installed wheels may not be

possible.

If ID registration is not complete after driv-

ing for approximately 1 hour, park the vehi-

cle in a safe place for approximately 20

minutes and then perform the ID code reg-

istration procedure again.

●

In the following situations, ID code regis-

tration will not be started or was not com-

pleted properly and the system will not

operate properly. Perform the ID code

registration procedure again.

• If, when attempting to start ID code regis-

tration, the tire pressure warning light

does not blink slowly 3 times.

• If, when the vehicle has been driven for

about 20 minutes after performing ID

code registration, the tire pressure warn-

ing light blinks for approximately 1 minute

and then illuminates.

●

If ID code registration cannot be com-

pleted after performing the above proce-

dure, contact your Lexus dealer.

282

6-3. Do-it-yourself maintenance

The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(



P.346)

Tire valve
Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pressure
gauge onto the tire valve.

Read the pressure using the gauge
gradations.

If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.

After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.

Put the tire valve cap back on.

■

Tire inflation pressure check interval

You should check tire inflation pressure

every two weeks, or at least once a month.

Do not forget to check the spare.

■

Effects of incorrect tire inflation pres-

sure

Driving with incorrect tire inflation pressure

may result in the following:

●

Reduced fuel economy

●

Reduced driving comfort and poor han-

dling

●

Reduced tire life due to wear

●

Reduced safety

●

Damage to the drivetrain

If a tire needs frequent inflating, have it

checked by your Lexus dealer.

■

Instructions for checking tire inflation

pressure

When checking tire inflation pressure,

observe the following:

●

Check only when the tires are cold.

If your vehicle has been parked for at

least 3 hours or has not been driven for

more than 1 mile or 1.5 km, you will get an

accurate cold tire inflation pressure read-

Tire inflation pressure

Checking the specified tire infla-
tion pressure

Inspection and adjustment pro-
cedure

A
B

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ing.

●

Always use a tire pressure gauge.

It is difficult to judge if a tire is properly

inflated based only on its appearance.

●

It is normal for the tire inflation pressure

to be higher after driving as heat is gen-

erated in the tire. Do not reduce tire infla-

tion pressure after driving.

●

Never exceed the vehicle capacity

weight.

Passengers and luggage weight should

be placed so that the vehicle is balanced.

WARNING

■

Proper inflation is critical to save tire

performance

Keep your tires properly inflated.

If the tires are not properly inflated, the

following conditions may occur which

could lead to an accident resulting in

death or serious injury:

●

Excessive wear

●

Uneven wear

●

Poor handling

●

Possibility of blowouts resulting from

overheated tires

●

Air leaking from between tire and

wheel

●

Wheel deformation and/or tire dam-

age

●

Greater possibility of tire damage

while driving (due to road hazards,

expansion joints, sharp edges on the

road, etc.)

NOTICE

■

When inspecting and adjusting tire

inflation pressure

Be sure to put the tire valve caps back on.

If a valve cap is not installed, dirt or mois-

ture may get into the valve and cause an

air leak, resulting in decreased tire infla-

tion pressure.

284

6-3. Do-it-yourself maintenance

When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset

Replacement wheels are available at
your Lexus dealer.

: Conventionally referred to as offset.

Lexus does not recommend using the
following:



Wheels of different sizes or types



Used wheels



Bent wheels that have been straight-
ened

■

When replacing wheels

The wheels of your vehicle are equipped

with tire pressure warning valves and trans-

mitters that allow the tire pressure warning

system to provide advance warning in the

event of a loss in tire inflation pressure.

Whenever wheels are replaced, tire pres-

sure warning valves and transmitters must

be installed. (



P.278)

Wheels

If a wheel is bent, cracked or heavily
corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.

Wheel selection

WARNING

■

When replacing wheels

●

Do not use wheels that are a different

size from those recommended in the

Owner’s Manual, as this may result in a

loss of handling control.

●

Never use an inner tube in a leaking

wheel which is designed for a tubeless

tire. Doing so may result in an acci-

dent, causing death or serious injury.

●

Use the correct wheel bolts for the

wheels to be installed. For details, con-

tact your Lexus dealer.

■

Wheel bolts

Observe the following precautions to

reduce the risk of death or serious injury:

●

Do not over tighten.

●

Never use oil or grease on the wheel

bolts. Oil and grease may cause the

wheel bolts to be excessively tight-

ened, leading to bolt or disc wheel

damage. In addition, the oil or grease

can cause the wheel bolts to loosen

and the wheel may fall off, causing a

serious accident. Remove any oil or

grease from the wheel bolts.

●

If there are any cracks or deformations

in the wheel bolts, or if the surface

treatment becomes worn, have the

wheel bolts replaced at your Lexus

dealer. Failure to follow these precau-

tions could cause the wheel bolts to

loosen and the tire to fall off, resulting

in death or serious injury.

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

Use only Lexus wheel bolts and
wrenches designed for use with
your aluminum wheels.



When rotating, repairing or chang-
ing your tires, check that the wheel
bolts are still tight after driving 621
miles (1000 km).



Be careful not to damage the alumi-
num wheels when using tire chains.



Use only Lexus genuine balance
weights or equivalent and a plastic
or rubber hammer when balancing
your wheels.

Turn the engine switch off.

Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.

Press the tabs and remove the filter
cover.

NOTICE

■

Replacing tire pressure warning

valves and transmitters

●

Because tire repair or replacement

may affect the tire pressure warning

valves and transmitters, make sure to

have tires serviced by your Lexus

dealer or other qualified service shop.

In addition, make sure to purchase

your tire pressure warning valves and

transmitters at your Lexus dealer.

●

Ensure that only genuine Lexus wheels

are used on your vehicle.

Tire pressure warning valves and trans-

mitters may not work properly with

non-genuine wheels.

Aluminum wheel precautions

Air conditioning filter

The air conditioning filter must be
changed regularly to maintain air
conditioning efficiency.

Removing the air conditioning
filter

286

6-3. Do-it-yourself maintenance

Press the tabs and remove the filter
case.

Remove the air conditioning filter
from the filter case and replace it
with a new one.

The “

UP” marks shown on the filter

and the filter case should be pointing up.

■

Checking interval

Inspect and replace the air conditioning fil-

ter according to the maintenance schedule.

In dusty areas or areas with heavy traffic

flow, early replacement may be required.

(For scheduled maintenance information,

please refer to the “Owner’s Manual Sup-

plement” or “Scheduled Maintenance”.)

■

If air flow from the vents decreases dra-

matically

The filter may be clogged. Check the filter

and replace if necessary.

■

Air conditioning filter with deodorizing

function

When fragrances are placed in your vehi-

cle, the deodorizing effect may become

significantly weakened in a short period.

When an air conditioning odor comes out

continuously, replace the air conditioning

filter.

NOTICE

■

When using the air conditioning sys-

tem

Make sure that a filter is always installed.

Using the air conditioning system without

a filter may cause damage to the system.

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■

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.

■

When the card key battery needs to be

replaced (if equipped)

The battery for the card key is available only

at Lexus dealers. Your Lexus dealer can

replace the battery for you.



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

local laws.

Take out the mechanical key.

Remove the cover.

To prevent damage to the key, wrap the tip

of the screwdriver with tape.

Remove the depleted battery.

Insert a new battery with the “+” terminal

facing up.

Electronic key battery

Replace the battery with a new one
if it is depleted.
As the key may be damaged if the
following procedure is not per-
formed properly, it is recom-
mended that key battery
replacement be performed by your
Lexus dealer.

Items to prepare

Replacing the battery

288

6-3. Do-it-yourself maintenance

WARNING

■

Battery precautions

Observe the following precautions.

Failure to do so may result in death or

serious 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.

●

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

■

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.

289

6-3. Do-it-yourself maintenance

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Turn the engine switch off.

Open the fuse box cover.



Engine compartment: type A fuse
box

Push the tab in and lift the lid off.



Engine compartment: type B fuse
box

Push the tab in and lift the lid off.



Left side instrument panel

Remove the lid.

Remove the fuse with the pullout
tool.

Only type A fuses can be removed using

the pullout tool.

Check if the fuse is blown.

Type A and B:

Replace the blown fuse with a new fuse of

an appropriate amperage rating. The

amperage rating can be found on the fuse

box lid.
Type C and D:

Contact your Lexus dealer.



Type A

Normal fuse
Blown fuse

Checking and replacing
fuses

If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.

Checking and replacing fuses

A
B

290

6-3. Do-it-yourself maintenance



Type B

Normal fuse
Blown fuse



Type C

Normal fuse
Blown fuse



Type D

Normal fuse
Blown fuse

■

After a fuse is replaced

●

If the lights do not turn on even after the

fuse has been replaced, a bulb may need

replacement.

●

If the replaced fuse blows again, have the

vehicle inspected by your Lexus dealer.

■

If there is an overload in a circuit

The fuses are designed to blow, protecting

the wiring harness from damage.

■

When replacing light bulbs

Lexus recommends that you use genuine

Lexus products designed for this vehicle.

Because certain bulbs are connected to cir-

cuits designed to prevent overload,

non-genuine parts or parts not designed for

this vehicle may be unusable.

A
B

WARNING

■

To prevent system breakdowns and

vehicle fire

Observe the following precautions.

Failure to do so may cause damage to

the vehicle, and possibly a fire or injury.

●

Never use a fuse of a higher amperage

rating than that indicated, or use any

other object in place of a fuse.

●

Always use a genuine Lexus fuse or

equivalent.

Never replace a fuse with a wire, even

as a temporary fix.

●

Do not modify the fuses or fuse boxes.

NOTICE

■

Before replacing fuses

Have the cause of electrical overload

determined and repaired by your Lexus

dealer as soon as possible.

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6-3. Do-it-yourself maintenance

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Adjustment bolt A
Adjustment bolt B



Make sure the vehicle has a full tank
of gasoline and the area around the
headlight is not deformed.



Park the vehicle on level ground.



Make sure the tire inflation pressure
is at the specified level.



Have someone sit in the driver’s
seat.



Bounce the vehicle several times.

Using a Phillips-head screwdriver,
turn bolt A in either direction.

Remember the turning direction and the

number of turns.

Turn bolt B the same number of
turns and in the same direction as
step

If the headlight cannot be adjusted using

this procedure, take the vehicle to your

Lexus dealer to adjust the headlight aim.

Headlight aim

Vertical movement adjusting
bolts

Before checking the headlight
aim

Adjusting the headlight aim

A
B

292

6-3. Do-it-yourself maintenance

Check the wattage of the light bulb to
be replaced. (



P.350)

Rear turn signal light

■

Bulbs that need to be replaced by
your Lexus dealer



Headlights



Parking lights and daytime running
lights



Front turn signal lights



Cornering lights



Side marker lights



Side turn signal lights



Stop/tail lights



Back-up light



High mounted stoplight



License plate lights

■

LED light bulbs

The lights other than the rear turn signal

lights each consist of a number of LEDs. If

any of the LEDs burn out, take your vehicle

to your Lexus dealer to have the light

replaced.

■

Condensation build-up on the inside of

the lens

Temporary condensation build-up on the

inside of the headlight lens does not indi-

cate a malfunction. Contact your Lexus

dealer for more information in the following

situations:

●

Large drops of water have built up on the

inside of the lens.

●

Water has built up inside the headlight.

■

When replacing light bulbs



P.290

■

Rear turn signal lights

Open the trunk and apply protec-
tive tape to the peripheral of the
taillight and the vehicle body
around the taillight.

Use masking tape, etc. Do not use duct

tape, as it may leave residue or damage the

Light bulbs

You may replace the following bulbs
by yourself. The difficulty level of
replacement varies depending on
the bulb. If necessary bulb replace-
ment seems difficult to perform,
contact your Lexus dealer.

For more information about replac-
ing other light bulbs, contact your
Lexus dealer.

Preparing for light bulb replace-
ment

Bulb locations

Replacing light bulbs

293

6-3. Do-it-yourself maintenance

Mai
nte

e a

are

paint when removed.

Using a flathead screwdriver,
remove the cover.

To prevent scratching the vehicle, wrap the

tip of the flathead screwdriver with a cloth,

etc.

Remove the 2 screws.

Pull the light unit toward the rear of
the vehicle to remove it.

Turn the bulb base counterclock-
wise.

Remove the light bulb.

Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.

After installing the light bulb, turn on the

rear turn signal light to visually check that

294

6-3. Do-it-yourself maintenance

there is no light leaking from the bulb base.

Align the tabs and push the light
unit toward the front of the vehicle
to install it.

Install the 2 screws and cover.

Remove the protective tape.

WARNING

■

Replacing light bulbs

●

Turn off the lights. Do not attempt to

replace the bulb immediately after

turning off the lights. The bulbs

become very hot and may cause

burns.

●

Do not touch the glass portion of the

light bulb with bare hands. When it is

unavoidable to hold the glass portion,

use and hold with a clean dry cloth to

avoid getting moisture and oils on the

bulb. Also, if the bulb is scratched or

dropped, it may blow out or crack.

●

Fully install light bulbs and any parts

used to secure them. Failure to do so

may result in heat damage, fire, or

water entering the light unit. This may

damage the lights or cause condensa-

tion to build up on the lens.

■

To prevent damage or fire

●

Make sure bulbs are fully seated and

locked.

●

Check the wattage of the bulb before

installing to prevent heat damage.

295

When trouble

ari

ses

When trouble arises

7-1. Essential information

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

296

If your vehicle has to be stopped in

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

296

If the vehicle is submerged or

water on the road is rising ..

297

7-2. Steps to take in an emergency

If your vehicle needs to be towed

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

299

If you think something is wrong

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

303

Fuel pump shut off system .....

304

If a warning light turns on or a

warning buzzer sounds .......

305

If a warning message is displayed

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

313

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

317

If the engine will not start .......

325

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

327

If the fuel filler door cannot be

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

327

If the electronic key does not

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

328

If the vehicle battery is discharged

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

330

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

333

If the vehicle becomes stuck

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

337

296

7-1. Essential information

7-1.Essential information

Press the switch to flash all of the turn
signal lights.

To turn them off, press the switch once
again.

■

Emergency flashers

If the emergency flashers are used for a

long time while the engine is not operating,

the battery may discharge.

Steadily step on the brake pedal
with both feet and firmly depress it.

Do not pump the brake pedal repeatedly

as this will increase the effort required to

slow the vehicle.

Shift the shift lever to N.



If the shift lever is shifted to N

After slowing down, stop the vehi-
cle in a safe place by the road.

Stop the engine.



If the shift lever cannot be shifted to
N

Keep depressing the brake pedal
with both feet to reduce vehicle
speed as much as possible.

To stop the engine, press and hold
the engine switch for 2 consecutive

Emergency flashers

The emergency flashers are used to
warn other drivers when the vehicle
has to be stopped on the road due
to a breakdown, etc.

Operating instructions

If your vehicle has to be
stopped in an emergency

Only in an emergency, such as if it
becomes impossible to stop the
vehicle in the normal way, stop the
vehicle using the following proce-
dure:

Stopping the vehicle

297

7-1. Essential information

n t

ris

seconds or more, or press it briefly
3 times or more in succession.

Stop the vehicle in a safe place by
the road.



If the door can be opened, open the
door and exit the vehicle.



If the door cannot be opened, open
the window using the power window
switch and ensure an escape route.



If the window can be opened, exit
the vehicle through the window.



If the door and window cannot be
opened due to the rising water,
remain calm, wait until the water
level inside the vehicle rises to the
point that the water pressure inside
of the vehicle equals the water pres-
sure outside of the vehicle and then
open the door after waiting for the
rising water to enter the vehicle, and
exit the vehicle. When the outside
water level exceeds half the height
of the door, the door cannot be
opened from the inside due to water
pressure.

■

Water level exceeds the floor

When the water level exceeds the floor and

time has passed, the electrical equipment

will get damaged, the power windows will

WARNING

■

If the engine has to be turned off while

driving

Power assist for the brakes and steering

wheel will be lost, making the brake

pedal harder to depress and the steering

wheel heavier to turn. Decelerate as

much as possible before turning off the

engine.

If the vehicle is submerged
or water on the road is rising

This vehicle is not designed to be
able to drive on roads that are
deeply flooded with water. Do not
drive on roads where the roads may
be submerged or the water may be
rising. It is dangerous to remain in
the vehicle, if it anticipated that the
vehicle will be flooded or set a drift.
Remain calm and follow the follow-
ing.

298

7-1. Essential information

not operate, the engine stop, and the vehi-

cle may not be able to get moving.

■

Using an emergency escape hammer

Laminated glass is used in the windshield on

this vehicle.
Laminated glass cannot be shattered with
an emergency hammer

Tempered glass is used in the windows on

this vehicle.

: Contact your Lexus dealer or aftermar-

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

WARNING

■

Caution while driving

Do not drive on roads where the roads

may be submerged or the water may be

rising. Otherwise the vehicle may be

damaged and cannot move, as well as

become flooded and set a drift, which

may lead to death.

299

7-2. Steps to take in an emergency

n t

ris

7-2.Steps to take in an emergency

If your vehicle needs to be
towed

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

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

If towing your vehicle with a
wheel-lift type truck from the front,
the vehicle's rear wheels and axles
must be in good conditions.
(



P.300)

If they are damaged, use a towing
dolly or flatbed truck.

If towing your vehicle with a
wheel-lift type truck, use a towing
dolly. (



P.299, 300)

WARNING

Observe the following precautions.

Failure to do so may result in death or

serious injury.

■

When towing the vehicle



2WD models

Be sure to transport the vehicle with all

four wheels raised off the ground. If the

vehicle is towed with the tires contacting

the ground, the drivetrain and related

parts may be damaged or an accident

may occur due to a change in direction

of the vehicle.



AWD models

Be sure to transport the vehicle with all

four wheels raised off the ground. If the

vehicle is towed with the tires contacting

the ground, the drivetrain or related

parts may be damaged, the vehicle may

fly off the truck.

■

While towing

When towing using cables or chains,

avoid sudden starts, etc. which place

excessive stress on the towing eyelets,

cables or chains. The towing eyelets,

cables or chains may become damaged,

broken debris may hit people, and cause

serious damage.

300

7-2. Steps to take in an emergency

The following may indicate a problem
with your transmission. Contact your
Lexus dealer or commercial towing
service before towing.



The engine is running but the vehi-
cle does not move.



The vehicle makes an abnormal
sound.



From the front

Use a towing dolly under the rear
wheels.



From the rear

Use a towing dolly under the front
wheels.

WARNING

■

Installing towing eyelets to the vehi-

cle

Make sure that towing eyelets are

installed securely.

If not securely installed, towing eyelets

may come loose during towing.

NOTICE

■

To prevent damage to the vehicle

when towing using a wheel-lift type

truck

When raising the vehicle, ensure ade-

quate ground clearance for towing at the

opposite end of the raised vehicle. With-

out adequate clearance, the vehicle

could be damaged while being towed.

■

To prevent damage to the vehicle

when towing with a sling-type truck

Do not tow with a sling-type truck, either

from the front or rear.

■

To prevent damage to the vehicle

during emergency towing

Do not secure cables or chains to the

suspension components.

■

Recreational towing (behind motor

home, etc.)

Never dinghy tow your vehicle to pre-

vent causing serious damage to the

AWD system and transmission.

(



P.125)

Situations when it is necessary to
contact dealers before towing

Towing with a wheel-lift type
truck

301

7-2. Steps to take in an emergency

n t

ris

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 engine switch off.

If a tow truck is not available in an
emergency, your vehicle may be tem-
porarily towed using cables or chains
secured to the emergency towing eye-
lets. This should only be attempted on
hard surfaced roads for at most 50
miles (80 km) at under 18 mph (30
km/h).
A driver must be in the vehicle to steer
and operate the brakes. The vehicle’s
wheels, drive train, axles, steering and
brakes must be in good condition.

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

Take out the wheel bolt wrench,
flathead screwdriver and towing
eyelet. (



P.317)

Remove the eyelet cover using a
flathead screwdriver.

To protect the bodywork, place a rag

between the screwdriver and the vehicle

body as shown in the illustration.



Except F SPORT models



F SPORT models

NOTICE

■

Towing with a sling-type truck

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

vent body damage.

Using a flatbed truck

Emergency towing

Emergency towing procedure

302

7-2. Steps to take in an emergency

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

Tighten down the towing eyelet
securely using a wheel bolt wrench
or hard metal bar.

Securely attach cables or chains to
the towing eyelet.
Take care not to damage the vehi-
cle body.

Enter the vehicle being towed and
start the engine.
If the engine does not start, turn the
engine switch to ON.

Shift the shift lever to N and release
the parking brake.

Turn automatic mode off. (



P.136)

When the shift lever cannot be shifted:



P.131

■

While towing

If the engine is not running, the power assist

for the brakes and steering will not function,

making steering and braking more difficult.

■

Wheel bolt wrench

Wheel bolt wrench is installed in trunk.

(



P.317)

303

7-2. Steps to take in an emergency

When trouble

ari

ses



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 engine



Engine missing, stumbling or run-
ning roughly



Appreciable loss of power



Vehicle pulls heavily to one side
when braking



Vehicle pulls heavily to one side
when driving on a level road



Loss of brake effectiveness, spongy
feeling, pedal almost touches the
floor

If you think something is
wrong

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

Visible symptoms

Audible symptoms

Operational symptoms

305

7-2. Steps to take in an emergency

When trouble

ari

ses

■

Brake system warning light

■

Brake system warning light

■

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 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.333)

306

7-2. Steps to take in an emergency

■

Charging system warning light

: Except F SPORT models: This light illuminates on the multi-information display.

F SPORT models: This light illuminates on the meter.

■

Low engine oil pressure warning light

(warning buzzer)

: This light illuminates on the multi-information display.

■

Malfunction indicator lamp

■

SRS warning light

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 electronic engine control system;



The electronic throttle control system; or



The electronic automatic transmission control system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates a malfunction in:



The SRS airbag system;



The front passenger occupant classification system; or



The seat belt pretensioner system



Have the vehicle inspected by your Lexus dealer immediately.

307

7-2. Steps to take in an emergency

When trouble

ari

ses

■

ABS warning light

■

Inappropriate pedal operation warning light* (warning buzzer)

: This light illuminates on the multi-information display.

■

Electric power steering system warning light (warning buzzer)

■

LTA indicator

(warning buzzer)

: This light illuminates on the multi-information display.

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



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

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



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(orange)

Indicates a malfunction in the LTA (Lane Tracing Assist)



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



P.179)

308

7-2. Steps to take in an emergency

■

PCS warning light

■

Slip indicator

■

Open door warning light (warning buzzer)

: Open door warning buzzer:



P.88

■

Low fuel level warning light

Warning light

Details/Actions

(flashes or illumi-

nates)

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



Have the vehicle inspected by your Lexus dealer immediately.

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



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



P.159, 315)

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



P.171

Warning light

Details/Actions

Indicates a malfunction in:



The VSC (Vehicle Stability Control) system;



The TRAC (Traction Control) system; or



The hill-start assist control system

The light will flash when the VSC or the TRAC system is operating.



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

Indicates that a door or the trunk is not fully closed



Check that both side doors and the trunk are closed.

Warning light

Details/Actions

Indicates that remaining fuel is approximately 2.6 gal. (10 L, 2.2 Imp.
gal.) or less



Refuel the vehicle.

Lexus RC350 (2023 year). Manual in english - page 9