Content .. 23 24 25 26 ..

Toyota Sienna Hybrid (2023 year). Manual in english - page 25

400

6-1. Maintenance and care

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in

the vehicle, such as on the floor,

on the front seats, in the hybrid

battery (traction battery) air

intake vent or in the luggage

compartment. (



P.85)

Doing so may cause the hybrid

battery, electrical components,

etc. to malfunction or catch fire.

●

Do not get any of the SRS com-

ponents or wiring in the vehicle

interior wet.

(



P.42)

An electrical malfunction may

cause the airbags to deploy or

not function properly, resulting

in death or serious injury.

●

Vehicles with wireless charger:

Do not let the wireless charger

(



P.381) get wet. Failure to do

so may cause the charger to

become hot and cause burns or

could cause electric shock

resulting in death or serious

injury.

■

Cleaning the interior (espe-

cially instrument panel)

Do not use a polish wax or polish

cleaner. The instrument panel

may reflect off the windshield,

obstructing the driver’s view and

leading to an accident, resulting in

death or serious injury.

NOTICE

■

Cleaning detergents

●

Do not use the following types

of detergent, as they may dis-

color the vehicle interior or

cause streaks or damage to

painted surfaces:

• Non-seat portions: Organic sub-

stances such as benzene or

gasoline, alkaline or acidic solu-

tions, dye, and bleach

• Seats: Alkaline or acidic solu-

tions, such as thinner, benzene,

and alcohol

●

Do not use a polish wax or pol-

ish cleaner. The instrument

panel’s or other interior part’s

painted surface may be dam-

aged.

■

Water on the floor

Do not wash the vehicle floor with

water.

Vehicle systems such as the

audio system may be damaged if

water comes into contact with

electrical components such as the

audio system above or under the

floor of the vehicle. Water may

also cause the body to rust.

■

When cleaning the inside of

the windshield

Do not allow glass cleaner to con-

tact the lens. Also, do not touch

the lens. (



P.265)

■

Cleaning the inside of the rear

window

●

Do not use a glass cleaner to

clean the rear window, as this

may cause damage to the rear

window defogger heater wires.

Use a cloth dampened with

lukewarm water to gently wipe

the window clean. Wipe the win-

dow in strokes running parallel

to the heater wires.

401

6-1. Maintenance and care

Maintena

nce
a

nd ca



Remove dirt using a water-
dampened soft cloth or syn-
thetic chamois.



Wipe the surface with a dry
soft cloth to remove any
remaining moisture.

■

Cleaning the areas with satin-

finish metal accents

The metal areas use a layer of real

metal for the surface. It is necessary

to clean them regularly. If dirty areas

are left uncleaned for long periods

of time, they may be difficult to

clean.



Remove dirt and dust using a
vacuum cleaner.



Wipe off any excess dirt and
dust with a soft cloth damp-
ened with diluted detergent.

Use a diluted water solution of
approximately 5% neutral wool
detergent.



Wring out any excess water
from the cloth and thoroughly
wipe off all remaining traces
of detergent.



Wipe the surface with a dry,
soft cloth to remove any
remaining moisture. Allow the

leather to dry in a shaded and
ventilated area.

■

Caring for leather areas

Toyota recommends cleaning the

interior of the vehicle at least twice a

year to maintain the quality of the

vehicle’s interior.



Remove dirt and dust using a
vacuum cleaner.



Wipe it off with a soft cloth
dampened with neutral deter-
gent diluted to approximately
1%.



Wring out any excess water
from the cloth and thoroughly
wipe off remaining traces of
detergent and water.

NOTICE

●

Be careful not to scratch or

damage the heater wires.

Cleaning the areas with
satin-finish metal accents

Cleaning the leather areas

NOTICE

■

Preventing damage to leather

surfaces

Observe the following precautions

to avoid damage to and deteriora-

tion of leather surfaces:

●

Remove any dust or dirt from

leather surfaces immediately.

●

Do not expose the vehicle to

direct sunlight for extended peri-

ods of time. Park the vehicle in

the shade, especially during

summer.

●

Do not place items made of

vinyl, plastic, or containing wax

on the upholstery, as they may

stick to the leather surface if the

vehicle interior heats up signifi-

cantly.

Cleaning the synthetic
leather areas

402

6-2. Maintenance

6-2.Maintenance

■

Repair and replacement

It is recommended that genuine

Toyota parts be used for repairs to

ensure performance of each sys-

tem. If non-Toyota parts are used in

replacement or if a repair shop other

than a Toyota dealer performs

repairs, confirm the warranty cover-

age.

■

Allow inspection and repairs to

be performed by a Toyota

dealer

●

Toyota technicians are well-

trained specialists and are kept up

to date with the latest service

information. They are well

informed about the operations of

all systems on your vehicle.

●

Keep a copy of the repair order. It

proves that the maintenance that

has been performed is under war-

ranty coverage. If any problem

should arise while your vehicle is

under warranty, your Toyota

dealer will promptly take care of it.

General maintenance should be
performed on a daily basis. This
can be done by yourself or by a
Toyota dealer.

Scheduled maintenance should
be performed at specified inter-
vals according to the mainte-
nance schedule.

For details about maintenance
items and schedules, refer to the
“Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.

Maintenance require-

ments

To ensure safe and econom-
ical driving, day-to-day care
and regular maintenance
are essential. It is the
owner’s responsibility to
perform regular checks.
Toyota recommends the fol-
lowing maintenance:

WARNING

■

If your vehicle is not properly

maintained

Improper maintenance could

result in serious damage to the

vehicle and possible death or seri-

ous injury.

■

Handling of the 12-volt bat-

tery

●

Engine exhaust, some of its

constituents, and a wide variety

of automobile components con-

tain or emit chemicals known to

the State of California to cause

cancer and birth defects and

other reproductive harm. Work

in a well ventilated area.

●

Oils, fuels and fluids contained

in vehicles as well as waste pro-

duced by component wear con-

tain or emit chemicals known to

the State of California to cause

cancer and birth defects or

other reproductive harm. Avoid

exposure and wash any

affected area immediately.

●

12-volt battery posts, terminals

and related accessories con-

tain lead and lead compounds

which are known to cause brain

damage. Wash your hands after

handling. (



P.419)

General maintenance

Scheduled maintenance

403

6-2. Maintenance

Maintena

nce
a

nd ca

■

Resetting the message indicat-

ing maintenance is required

After the required maintenance is

performed according to the mainte-

nance schedule, please reset the

message. To reset the reminder

message, follow the procedure

described below:



4.2-inch display

Press

of the meter

control switches to select

the multi-information display.

Press

of the meter

control switches, select “Vehicle
Settings” and then press and
hold “OK”.



7-inch display

Press

of the meter

control switches to select

the multi-information display.

Press

of the meter

control switches, select

and

then press and hold “OK”.

Press

of the meter

control switches, select “Sched-
uled Maintenance” and then
press “OK”.

Select “Yes” and press “OK”.

A message will be displayed on the

multi-information display.

You can perform some mainte-
nance procedures by yourself.
Please be aware that do-it-your-
self maintenance may affect
warranty coverage.

The use of Toyota Repair Manuals
is recommended.
For details about warranty cover-
age, refer to the separate “Owner’s
Warranty Information Booklet” or
“Owner’s Manual Supplement”.

Do-it-yourself mainte-
nance

404

6-2. Maintenance

General maintenance

Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
“Owner’s Warranty Informa-
tion Booklet” or “Owner’s
Manual Supplement/Sched-
uled Maintenance Guide”. It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota dealer or
qualified service shop for
advice.

WARNING

■

If the hybrid system is run-

ning

Turn the hybrid system off and

ensure that there is adequate

ventilation before performing

maintenance checks.

Engine compartment

Items

Check points

Brake fluid

Is the brake fluid at
the correct level?
(



P.417)

Engine/power
control unit
coolant

Is the
engine/power con-
trol unit coolant at
the correct level?
(



P.416)

Engine oil

Is the engine oil at
the correct level?
(



P.413)

Exhaust sys-
tem

There should not
be any fumes or
strange sounds.

Radiator/con-
denser

The radiator and
condenser should
be free from for-
eign objects.
(



P.417)

Washer fluid

Is there sufficient
washer fluid?
(



P.418)

Luggage compartment

Items

Check points

12-volt battery

Check the connec-
tions. (



P.419)

Vehicle interior

Items

Check points

Accelerator
pedal

• The accelerator

pedal should
move smoothly
(without uneven
pedal effort or
catching).

Hybrid trans-
mission “Park”
mechanism

• When parked on

a slope and the
shift lever is in P,
is the vehicle
securely
stopped?

Items

Check points

405

6-2. Maintenance

Maintena

nce
a

nd ca

Brake pedal

• Does the brake

pedal move
smoothly?

• Does the brake

pedal have
appropriate
clearance from
the floor?
(



P.522)

• Does the brake

pedal have the
correct amount
of free play?
(



P.522)

Brakes

• The vehicle

should not pull to
one side when
the brakes are
applied.

• The brakes

should work
effectively.

• The brake pedal

should not feel
spongy.

• The brake pedal

should not get
too close to the
floor when the
brakes are
applied.

Head
restraints

• Do the head

restraints move
smoothly and
lock securely?

Indica-
tors/buzzers

• Do the indica-

tors and buzzers
function prop-
erly?

Lights

• Do all the lights

come on?

Items

Check points

Parking brake

• Does the park-

ing brake oper-
ate normally?

• When parked on

a slope and the
parking brake is
on, is the vehicle
securely
stopped?

Seat belts

• Do the seat belts

operate
smoothly?

• The seat belts

should not be
damaged.

Seats

• Do the seat con-

trols operate
properly?

Steering wheel

• Does the steer-

ing wheel rotate
smoothly?

• Does the steer-

ing wheel have
the correct
amount of free
play?

• There should not

be any strange
sounds coming
from the steer-
ing wheel.

Items

Check points

406

6-2. Maintenance

The OBD system determines
that a problem exists some-
where in the emission control
system. Your vehicle may not
pass the I/M test and may need
to be repaired. Contact your
Toyota dealer to service the
vehicle.



When the 12-volt battery is
disconnected or discharged
Readiness codes that are set
during ordinary driving are
erased.
Also, depending on your driv-
ing habits, the readiness
codes may not be completely
set.



When the fuel tank cap is

Vehicle exterior

Items

Check points

Doors

• Do the doors

operate
smoothly?

Engine hood

• Does the engine

hood lock system
work properly?

Fluid leaks

• There should not

be any signs of
fluid leakage
after the vehicle
has been parked.

Tires

• Is the tire infla-

tion pressure
correct?

• The tires should

not be damaged
or excessively
worn.

• Have the tires

been rotated
according to the
maintenance
schedule?

• The wheel nuts

should not be
loose.

Windshield
wipers/rear
window wiper

• The wiper blades

should not show
any signs of
cracking, split-
ting, wear, con-
tamination or
deformation.

• The wiper blades

should clear the
windshield/rear
window without
streaking or skip-
ping.

Emission inspection

and maintenance (I/M)

programs

Some states have vehicle
emission inspection pro-
grams which include OBD
(On Board Diagnostics)
checks. The OBD system
monitors the operation of
the emission control sys-
tem.

If the malfunction indica-
tor lamp comes on

Your vehicle may not
pass the I/M test in the fol-
lowing situations:

407

6-2. Maintenance

Maintena

nce
a

nd ca

loose
The malfunction indicator
lamp comes on indicating a
temporary malfunction and
your vehicle may not pass the
I/M test.

The error code in the OBD sys-
tem will not be cleared unless
the vehicle is driven 40 or more
times.

Contact your Toyota dealer to
prepare the vehicle for re-test-
ing.

When the malfunction
indicator lamp still
remains on after several
driving trips

If your vehicle does not
pass the I/M test

408

6-3. Do-it-yourself maintenance

6-3.Do-it-yourself maintenance

Do-it-yourself service

precautions

If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.

Maintenance

Items

Parts and tools

12-volt bat-
tery condi-
tion
(



P.419)

• Grease
• Conventional

wrench (for termi-
nal clamp bolts)

Brake fluid
level
(



P.417)

• FMVSS No.116

DOT 3 or SAE
J1703 brake fluid

• FMVSS No.116

DOT 4 or SAE
J1704 brake fluid

• Rag or paper

towel

• Funnel (used only

for adding brake
fluid)

Engine/power
control unit
coolant level
(



P.416)

• “Toyota Super

Long Life Cool-
ant” or a similar
high quality eth-
ylene glycol-based
non-silicate, non-
amine, non-nitrite
and non-borate
coolant with long-
life hybrid organic
acid technology
For the U.S.A.:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 50% coolant
and 50% deion-
ized water.
For Canada:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 55% coolant
and 45% deion-
ized water.

• Funnel (used only

for adding coolant)

Engine oil
level
(



P.413)

• “Toyota Genuine

Motor Oil” or
equivalent

• Rag or paper

towel

• Funnel (used only

for adding engine
oil)

Fuses
(



P.446)

• Fuse with same

amperage rating
as original

Items

Parts and tools

409

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Hybrid bat-
tery (traction
battery) air
intake vent
(



P.440)

• Vacuum cleaner,

etc,

• Phillips screw-

driver

Light bulbs
(



P.448)

• Bulb with same

number and watt-
age rating as origi-
nal

• Phillips-head

screwdriver

• Flathead screw-

driver

• Wrench

Radiator and
condenser
(



P.417)



Tire inflation
pressure
(



P.435)

• Tire pressure

gauge

• Compressed air

source

Washer fluid
(



P.418)

• Water or washer

fluid containing
antifreeze (for win-
ter use)

• Funnel (used only

for adding water or
washer fluid)

WARNING

The engine compartment contains

many mechanisms and fluids that

may move suddenly, become hot,

or become electrically energized.

To avoid death or serious injury,

observe the following precautions.

Items

Parts and tools

■

When working on the engine

compartment

●

Make sure that “IGNITION ON”

on the multi-information display

and the “READY” indicator are

both off.

●

Keep hands, clothing and tools

away from the moving fan.

●

Be careful not to touch the

engine, power control unit, radi-

ator, exhaust manifold, etc. right

after driving as they may be hot.

Oil and other fluids may also be

hot.

●

Do not leave anything that may

burn easily, such as paper and

rags, in the engine compart-

ment.

●

Do not smoke, cause sparks or

expose an open flame to fuel or

the battery. Fuel and battery

fumes are flammable.

●

Be extremely cautious when

working on the battery. It con-

tains poisonous and corrosive

sulfuric acid.

■

When working near the elec-

tric cooling fan or radiator

grille

Be sure the power switch is OFF.
With the power switch in ON, the

electric cooling fan may automati-

cally start to run if the air condi-

tioning is on and/or the coolant

temperature is high. (



P.417)

■

Safety glasses

Wear safety glasses to prevent

flying or falling material, fluid

spray, etc., from getting in your

eyes.

410

6-3. Do-it-yourself maintenance

Pull the hood lock release
lever.

The hood will pop up slightly.

Push the auxiliary catch lever
to the left and lift the hood.

NOTICE

■

If you remove the air cleaner

filter

Driving with the air cleaner filter

removed may cause excessive

engine wear due to dirt in the air.

Hood

Release the lock from the
inside of the vehicle to open
the hood.

Opening the hood

411

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Hold the hood open by insert-
ing the supporting rod into
the slot.

WARNING

■

Pre-driving check

Check that the hood is fully closed

and locked.

If the hood is not locked properly,

it may open while the vehicle is in

motion and cause an accident,

which may result in death or seri-

ous injury.

■

After installing the support

rod into the slot

Make sure the rod supports the

hood securely from falling down

on to your head or body.

■

When closing the hood

When closing the hood, take extra

care to prevent your fingers etc.

from being caught.

NOTICE

■

When closing the hood

Be sure to return the support rod

to its clip before closing the hood.

Closing the hood without return-

ing the support rod properly could

cause the hood to bend.

412

6-3. Do-it-yourself maintenance

■

Front

■

Rear

Positioning a floor

jack

When using a floor jack, fol-
low the instructions in the
manual provided with the
jack and perform the opera-
tion safely.
When raising your vehicle
with a floor jack, position
the jack correctly.
Improper placement may
damage your vehicle or
cause injury.

Location of the jack point

413

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Fuse box (



P.446)

Engine oil filler cap (



P.414)

Engine oil level dipstick (



P.413)

Brake fluid reservoir (



P.417)

Radiator (



P.417)

Electric cooling fan

Condenser (



P.417)

Power control unit coolant reservoir (

Washer fluid tank (

Engine coolant reservoir (



P.416)

■

12-volt battery



P.419

With the engine at operating
temperature and turned off,

Engine compartment

Components

Checking and adding the
engine oil

414

6-3. Do-it-yourself maintenance

check the oil level on the dip-
stick.

■

Checking the engine oil

Park the vehicle on level
ground. After warming up the
engine and turning off the
engine, wait more than 5
minutes for the oil to drain
back into the bottom of the
engine.

Holding a rag under the end,
pull the dipstick out.

Wipe the dipstick clean.

Reinsert the dipstick fully.

Holding a rag under the end,
pull the dipstick out and
check the oil level.

Low

Normal

Excessive

The shape of the dipstick may differ

depending on the type of vehicle or

engine.

Wipe the dipstick and reinsert
it fully.

■

Checking the oil type and
preparing the items needed

Make sure to check the oil type
and prepare the items needed
before adding oil.



Engine oil selection



P.519



Oil quantity (Low



Full)

1.6 qt. (1.5 L, 1.3 Imp. qt.)



Item

Clean funnel

■

Adding engine oil

If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.

Remove the oil filler cap by
turning it counterclockwise.

Add engine oil slowly, check-
ing the dipstick.

Install the oil filler cap by
turning it clockwise.

415

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

■

Engine oil consumption

A certain amount of engine oil will

be consumed while driving. In the

following situations, oil consump-

tion may increase, and engine oil

may need to be refilled in between

oil maintenance intervals.

●

When the engine is new, for

example directly after purchasing

the vehicle or after replacing the

engine

●

If low quality oil or oil of an inap-

propriate viscosity is used

●

When driving at high engine

speeds or with a heavy load,

when towing, or when driving

while accelerating or decelerating

frequently

●

When leaving the engine idling for

a long time, or when driving fre-

quently through heavy traffic

■

After changing the engine oil

The engine oil maintenance data

should be reset. Perform the follow-

ing procedures:



4.2-inch display

Press

of the meter

control switches to select

the multi-information display.

Press

of the meter

control switches, select “Vehicle
Settings” and then press and
hold “OK”.



7-inch display

Press

of the meter

control switches to select

the multi-information display.

Press

of the meter

control switches, select

and

then press and hold “OK”.

Press

of the meter

control switches, select “Oil

Maintenance” and then press
“OK”.

Select “Yes” and press “OK”.

A message will be displayed on the

multi-information display.

WARNING

■

Used engine oil

●

Used engine oil contains poten-

tially harmful contaminants

which may cause skin disorders

such as inflammation and skin

cancer, so care should be taken

to avoid prolonged and

repeated contact. To remove

used engine oil from your skin,

wash thoroughly with soap and

water.

●

Dispose of used oil and filters

only in a safe and acceptable

manner. Do not dispose of used

oil and filters in household trash,

in sewers or onto the ground.

Call your Toyota dealer, service

station or auto parts store for

information concerning recy-

cling or disposal.

●

Do not leave used engine oil

within the reach of children.

NOTICE

■

To prevent serious engine

damage

Check the oil level on a regular

basis.

■

When replacing the engine oil

●

Be careful not to spill engine oil

on the vehicle components.

●

Avoid overfilling, or the engine

could be damaged.

●

Check the oil level on the dip-

stick every time you refill the

vehicle.

Content .. 23 24 25 26 ..