Toyota Corolla Hatchback (2023 year). Manual in english

272

6-3. Do-it-yourself maintenance

Radiator
and con-
denser
(



P.278)



Tire infla-
tion pres-
sure
(



P.299)

• Tire pressure gauge
• Compressed air

source

Washer
fluid
(



P.281)

• Water or washer

fluid containing anti-
freeze (for winter
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.

■

When working on the engine

compartment

●

Keep hands, clothing and tools

away from the moving fan and

engine drive belt.

●

Be careful not to touch the

engine, radiator, exhaust mani-

fold, 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.

Fuel fumes are flammable.

Items

Parts and tools

●

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 engine switch is off.

With the engine 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.278)

■

Safety glasses

Wear safety glasses to prevent

flying or falling material, fluid

spray, etc. from getting in your

eyes.

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.

273

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Pull the hood lock release
lever.

The hood will pop up slightly.

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

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

Hood

Opening the hood

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 preventing it from

falling down onto your head or

body.

NOTICE

■

When closing the hood

Be sure to return the support rod

to its clip before closing the hood.

Closing the hood with the support

rod not clipped could cause the

hood to bend.

275

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Washer fluid tank (



P.281)

Engine coolant reservoir (



P.275)

Fuse boxes (



P.306)

Engine oil filler cap (



P.276)

Engine oil level dipstick (

Battery (

Brake fluid reservoir (



P.278)

Radiator (



P.278)

Condenser (



P.278)

Electric cooling fan

With the engine at operating
temperature and turned off,
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 it off, wait

Engine compartment

Components

Checking and adding the
engine oil

276

6-3. Do-it-yourself maintenance

more than 5 minutes for the
oil to drain back into the bot-
tom 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 item needed

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



Engine oil selection



P.368



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.

■

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.

277

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

●

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, 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

The coolant level is satisfactory
if it is between the “MAX” and
“MIN” lines on the reservoir
when the engine is cold.

Reservoir
“MAX” line
“MIN” line

If the level is on or below the “MIN”
line, add coolant up to the “MAX”
line. (



P.362)

■

Coolant selection

Only use “Toyota Super Long Life

Coolant” or a similar high quality

ethylene glycol based non-silicate,

non-amine, non-nitrite, and

non-borate coolant with long-life

hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is

a mixture of 50% coolant and 50%

deionized water. (Minimum tem-

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.

●

Be sure the engine oil filler cap

is properly tightened.

Checking the engine cool-
ant

278

6-3. Do-it-yourself maintenance

perature: -31°F [-35°C])
Canada:
“Toyota Super Long Life Coolant” is

a mixture of 55% coolant and 45%

deionized water. (Minimum tem-

perature: -44°F [-42°C])
For more details about coolant, con-

tact your Toyota dealer.

■

If the coolant level drops within

a short time of replenishing

Visually check the radiator, hoses,

engine coolant reservoir caps, drain

cock and water pump.

If you cannot find a leak, have your

Toyota dealer test the cap and

check for leaks in the cooling sys-

tem.

Check the radiator and con-

denser and clear away any for-
eign objects. If either of the
above parts is extremely dirty or
you are not sure of their condi-
tion, have your vehicle
inspected by your Toyota dealer.

■

Checking fluid level

The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.

WARNING

■

When the engine is hot

Do not remove the engine coolant

reservoir cap. (



P.363)

The cooling system may be under

pressure and may spray hot cool-

ant if the cap is removed, causing

serious injuries, such as burns.

NOTICE

■

When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct

mixture of water and antifreeze

must be used to provide proper

lubrication, corrosion protection

and cooling. Be sure to read the

antifreeze or coolant label.

■

If you spill coolant

Be sure to wash it off with water to

prevent it from damaging parts or

paint.

Checking the radiator and
condenser

WARNING

■

When the engine is hot

Do not touch the radiator or con-

denser as they may be hot and

cause serious injuries, such as

burns.

Checking and adding the
brake fluid

279

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

■

Adding fluid

Slide and lift up the rubber
strip to partly remove it as
shown.

Disconnect the claws and
remove the service cover.

Remove the reservoir cap.

Add brake fluid slowly while
checking the fluid level.

Make sure to check the fluid
type and prepare the necessary
item.



Fluid type

FMVSS No.116 DOT 3 or SAE
J1703 brake fluid



Item

Clean funnel

■

Brake fluid can absorb moisture

from the air

Excess moisture in the brake fluid

can cause a dangerous loss of brak-

ing efficiency. Use only newly

opened brake fluid.

Check the battery as follows.

■

Battery exterior

Make sure that the battery termi-
nals are not corroded and that
there are no loose connections,
cracks, or loose clamps.

WARNING

■

When filling the reservoir

Take care as brake fluid can harm

your hands and eyes and damage

painted surfaces.

If fluid gets on your hands or in

your eyes, flush the affected area

with clean water immediately.
If you still experience discomfort,

see a doctor.

NOTICE

■

If the fluid level is low or high

It is normal for the brake fluid level

to go down slightly as the brake

pads wear out or when the fluid

level in the accumulator is high.

If the reservoir needs frequent

refilling, there may be a serious

problem.

Battery

280

6-3. Do-it-yourself maintenance

Terminals
Hold-down clamp

■

Before recharging

When recharging, the battery pro-

duces hydrogen gas which is flam-

mable and explosive. Therefore,

observe the following precautions

before recharging:

●

If recharging with the battery

installed on the vehicle, be sure to

disconnect the ground cable.

●

Make sure the charger is off when

connecting and disconnecting the

charger cables to the battery.

■

After recharging/reconnecting

the battery

●

Unlocking the doors using the

smart key system may not be pos-

sible immediately after reconnect-

ing the battery. If this happens,

use the wireless remote control or

the mechanical key to lock/unlock

the doors.

●

Start the engine with the engine

switch in ACC. The engine may

not start with the engine switch

turned off. However, the engine

will operate normally from the sec-

ond attempt.

●

The engine switch mode is

recorded by the vehicle. If the bat-

tery is reconnected, the vehicle

will return the engine switch mode

to the status it was in before the

battery was disconnected. Make

sure to turn off the engine before

disconnecting the battery. Take

extra care when connecting the

battery if the engine switch mode

prior to discharge is unknown.

If the system will not start even after

multiple attempts, contact your Toy-

ota dealer.

WARNING

■

Chemicals in the battery

The battery contains poisonous

and corrosive sulfuric acid and

may produce hydrogen gas which

is flammable and explosive. To

reduce the risk of death or serious

injury, take the following precau-

tions while working on or near the

battery:

●

Do not cause sparks by touch-

ing the battery terminals with

tools.

●

Do not smoke or light a match

near the battery.

●

Avoid contact with eyes, skin

and clothes.

●

Never inhale or swallow electro-

lyte.

●

Wear protective safety glasses

when working near the battery.

●

Keep children away from the

battery.

■

Where to safely charge the

battery

Always charge the battery in an

open area. Do not charge the bat-

tery in a garage or closed room

where there is insufficient ventila-

tion.

281

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca



Except for Canada

If the washer fluid level is at
“LOW”, add washer fluid.



For Canada

Add washer fluid in the following
situations:



A washer does not work.



The warning message
appears on the multi-informa-
tion display.

■

Using the gauge (Except for

Canada)

The washer fluid level can be

checked by observing the position

of the level on the liquid-covered

holes in the gauge.

If the level falls below the second

hole from the bottom (the “LOW”

position), refill the washer fluid.

WARNING

■

Emergency measures regard-

ing electrolyte

●

If electrolyte gets in your eyes

Flush your eyes with clean

water for at least 15 minutes

and get immediate medical

attention. If possible, continue

to apply water with a sponge or

cloth while traveling to the near-

est medical facility.

●

If electrolyte gets on your skin

Wash the affected area thor-

oughly. If you feel pain or burn-

ing, get medical attention

immediately.

●

If electrolyte gets on your

clothes

It can soak through clothing on

to your skin. Immediately take

off the clothing and follow the

procedure above if necessary.

●

If you accidentally swallow elec-

trolyte

Drink a large quantity of water

or milk. Get emergency medical

attention immediately.

■

When disconnecting the bat-

tery

Do not disconnect the negative (-)

terminal on the body side. The

disconnected negative (-) terminal

may touch the positive (+) termi-

nal, which may cause a short and

result in death or serious injury.

NOTICE

■

When recharging the battery

Never recharge the battery while

the engine is running. Also, be

sure all accessories are turned

off.

Adding the washer fluid

282

6-3. Do-it-yourself maintenance

Current fluid level

Check if the treadwear indica-
tors are showing on the tires.
Also check the tires for uneven
wear, such as excessive wear
on one side of the tread.
Check the spare tire condition
and pressure if not rotated.

New tread
Worn tread
Treadwear indicator

The location of treadwear indicators
is shown by a “TWI” or “

” mark,

WARNING

■

When adding washer fluid

Do not add washer fluid when the

engine is hot or running as

washer fluid contains alcohol and

may catch fire if spilled on the

engine, etc.

NOTICE

■

Do not use any fluid other

than washer fluid

Do not use soapy water or engine

antifreeze instead of washer fluid.

Doing so may cause streaking on

the vehicle’s painted surfaces, as

well as damaging the pump lead-

ing to problems of the washer

fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as

necessary.

Refer to the freezing tempera-

tures listed on the label of the

washer fluid bottle.

Tires

Replace or rotate tires in
accordance with mainte-
nance schedules and tread-
wear.

Checking tires

283

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

etc., molded into the sidewall of
each tire.
Replace the tires if the treadwear
indicators are showing on a tire.

■

When to replace your vehicle’s

tires

Tires should be replaced if:

●

The treadwear indicators are

showing on a tire.

●

You have tire damage such as

cuts, splits, cracks deep enough

to expose the fabric, and bulges

indicating internal damage

●

A tire goes flat repeatedly or can-

not be properly repaired due to the

size or location of a cut or other

damage

If you are not sure, consult with your

Toyota dealer.

■

Tire life

Any tire over 6 years old must be

checked by a qualified technician

even if it has seldom or never been

used or damage is not obvious.

■

Low profile tires (18-inch tires)

Generally, low profile tires will wear

more rapidly and tire grip perfor-

mance will be reduced on snowy

and/or icy roads when compared to

standard tires. Be sure to use snow

tires or tire chains on snowy and/or

icy roads and drive carefully at a

speed appropriate for road and

weather conditions.

■

Maximum load of tire

Check that the maximum load of the

replacement tire is greater than 1/2

of the Gross Axle Weight Ratings

(GAWR) of either the front axle or

the rear axle, whichever is greater.
For the GAWR, see the Certification

Label.

For the maximum load of the tire,

see the load limit at maximum cold

tire inflation pressure mentioned on

the sidewall of the tire. (



P.375)

■

Tire types

●

Summer tires

Summer tires are high-speed perfor-
mance tires best suited to highway
driving under dry conditions. Since
summer tires do not have the same
traction performance as snow tires,
summer tires are inadequate for
driving on snow-covered or icy
roads. For driving on snow-covered
roads or icy roads, the use of snow
tires is recommended. When install-
ing snow tires, be sure to replace all
four tires.

●

All season tires

All season tires are designed to pro-
vide better traction in snow and to
be adequate for driving in most win-
ter conditions as well as for use
year-round. All season tires, how-
ever, do not have adequate traction
performance compared with snow
tires in heavy or loose snow. Also,
all season tires fall short in accelera-
tion and handling performance com-
pared with summer tires in highway
driving.

●

Snow tires

For driving on snow-covered roads
or icy roads, we recommend using
snow tires. If you need snow tires,
select tires of the same size, con-
struction and load capacity as the
originally installed tires. Since your
vehicle has radial tires as original
equipment, make sure your snow

284

6-3. Do-it-yourself maintenance

tires also have radial construction.
Do not install studded tires without
first checking local regulations for
possible restrictions. Snow tires
should be installed on all wheels.
(



P.230)

■

If the tread on snow tires wears

down below 0.16 in. (4 mm)

The effectiveness of the tires as

snow tires is lost.

■

Checking the tire valves

When replacing the tires, check the

tire valves for deformation, cracks,

and other damage.

Rotate the tires in the order
shown.

WARNING

■

When inspecting or replacing

tires

Observe the following precautions

to prevent accidents.

Failure to do so may cause dam-

age to parts of the drive train as

well as dangerous handling char-

acteristics, which may lead to an

accident resulting in death or seri-

ous injury.

●

Do not mix tires of different

makes, models or tread pat-

terns.

Also, do not mix tires of remark-

ably different treadwear.

●

Do not use tire sizes other than

those recommended by Toyota.

●

Do not mix differently con-

structed tires (radial, bias-belted

or bias-ply tires).

●

Do not mix summer, all season

and snow tires.

●

Do not use tires that have been

used on another vehicle.

Do not use tires if you do not

know how they were used previ-

ously.

NOTICE

■

Low profile tires (18-inch

tires)

Low profile tires may cause

greater damage than usual to the

tire wheel when sustaining impact

from the road surface. Therefore,

pay attention to the following:

●

Be sure to use proper tire infla-

tion pressure. If tires are

under-inflated, they may be

damaged more severely.

●

Avoid potholes, uneven pave-

ment, curbs and other road haz-

ards. Failure to do so may lead

to severe tire and wheel dam-

age.

■

If tire inflation pressure of

each tire becomes low while

driving

Do not continue driving, or your

tires and/or wheels may be

ruined.

■

Driving on rough roads

Take particular care when driving

on roads with loose surfaces or

potholes.

These conditions may cause

losses in tire inflation pressure,

reducing the cushioning ability of

the tires. In addition, driving on

rough roads may cause damage

to the tires themselves, as well as

the vehicle’s wheels and body.

Tire rotation

285

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

Front

To equalize tire wear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
same interval as tire inspection.
Do not fail to initialize the tire pres-
sure warning system after tire rota-
tion.

Your vehicle is equipped with a
tire pressure warning system
that uses tire pressure warning
valves and transmitters to detect
low tire inflation pressure before
serious problems arise.
The tire pressure warning sys-
tem of this vehicle adopts a
2-type warning system.



When “Adjust Pressure” is
displayed (Normal Warning)

A warning with the tire pressure
warning light and warning buzzer
when there is an unknown level of
low tire pressure with the appear-
ance of the tire due to natural air
leakage as well as the pressure
lowering due to changes in the
pressure according to the outside
temperature. (Ways of coping:



P.324, 370)



When “Immediately Check
Tire when Safe” is displayed
(Emergency Warning)

A warning with the tire pressure
warning light and warning buzzer
when there is a known level of low
tire pressure with the appearance
of the tire due to pressure suddenly
lowering. (Ways of coping:



P.324,

346)
However, the system may not be
able to detect sudden tire ruptures
(bursting, etc.).
The tire pressure detected by the
tire pressure warning system can
be displayed on the multi-informa-
tion display.

■

How to change the unit



4.2-inch display

Park the vehicle in a safe
place and turn the engine
switch off.

Changing the unit cannot be per-

formed while the vehicle is moving.

Turn the engine switch to
ON.

Select

of the multi-infor-

mation display and then

press

Tire pressure warning
system

286

6-3. Do-it-yourself maintenance

Press

to select

“Vehicle Settings” and then

press and hold

Press

to select

“TPWS setting” and then

press

Press

to select

“Pressure unit setting”.

Press

to select the

desired unit and then press



7-inch display

Park the vehicle in a safe
place and turn the engine
switch off.

Changing the unit cannot be per-

formed while the vehicle is moving.

Turn the engine switch to
ON.

Select

of the multi-infor-

mation display and then

press

Press

to select

“Vehicle Settings” and then

press and hold

Press

to select

“TPWS setting” and then

press

Press

to select

“Pressure unit setting”.

Press

to select the

desired unit and then press

■

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 dis-

play the tire inflation pressure

after the engine switch is turned to

ON. It may also take a few min-

utes to display the tire inflation

pressure after inflation pressure

has been adjusted.

●

Tire inflation pressure changes

with temperature.

The displayed values may also be

different from the values mea-

sured using a tire pressure gauge.

■

Situations in which the tire

pressure warning system may

not operate properly

●

In the following cases, the tire

pressure warning system may not

operate properly.

• If non-genuine Toyota 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 vehicle, particularly around the

wheels or wheel housings.

• If the tire inflation pressure is

extremely higher than the speci-

fied level.

287

6-3. Do-it-yourself maintenance

Maintena

nce
a

nd ca

• If tires not equipped with tire pres-

sure warning valves and transmit-

ters are used.

• If the ID code on the tire pressure

warning valves and transmitters is

not registered in the tire pressure

warning computer.

●

Performance may be affected in

the following situations.

• Near a TV tower, electric power

plant, gas station, radio station,

large display, airport or other facil-

ity that generates strong radio

waves or electrical noise.

• When carrying a portable radio,

cellular phone, cordless phone or

other wireless communication

device.

●

When the vehicle is parked, the

time taken for the warning to start

or go off could be extended.

●

When tire inflation pressure

declines rapidly for example when

a tire has burst, the warning may

not function.

■

Warning performance of the tire

pressure warning system

The warning of the tire pressure

warning system will change in

accordance with driving conditions.

For this reason, the system may

give a warning even if the tire pres-

sure does not reach a low enough

level, or if the pressure is higher

than the pressure that was adjusted

to when the system was initialized.

When replacing tires or wheels,
tire pressure warning valves and
transmitters must also be
installed.
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. Have tire pressure
warning valves and transmitter
ID codes registered by your Toy-
ota dealer. (



P.293)

■

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 minutes, the tire

pressure warning light blinks for 1

minute and stays on to indicate a

system malfunction.

Installing tire pressure
warning valves and trans-
mitters

NOTICE

■

Repairing or replacing tires,

wheels, tire pressure warn-

ing valves, transmitters and

tire valve caps

●

When removing or fitting the

wheels, tires or the tire pressure

warning valves and transmit-

ters, contact your Toyota dealer

as the tire pressure warning

valves and transmitters may be

damaged if not handled cor-

rectly.

●

Make sure to install the tire

valve caps. If the tire valve caps

are not installed, water could

enter the tire pressure warning

valves and the tire pressure

warning valves could be bound.

●

When replacing tire valve caps,

do not use tire valve caps other

than those specified. The cap

may become stuck.

Toyota Corolla Hatchback (2023 year). Manual in english - page 17