Toyota Corolla Hybrid (2023 year). Manual in english - page 19

306

6-1. Maintenance and care



Remove dirt using a 
water-dampened soft cloth or 
synthetic 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 

NOTICE

• Seats: Alkaline or acidic solu-

tions, such as thinner, benzene, 

and alcohol

• Steering wheel: Organic sub-

stances, such as thinner, and 

cleaner that contains alcohol

●

Do not use polish wax or polish 

cleaner. The instrument panel’s 

or other interior part’s painted 

surface may be damaged.

■

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.

■

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.202)

■

Cleaning the inside of the rear 

window

●

Do not use glass cleaner to 

clean the rear window, as this 

may cause damage to the rear 

window defogger heater wires 

or antenna. Use a cloth damp-

ened with lukewarm water to 

gently wipe the window clean. 

Wipe the window in strokes run-

ning parallel to the heater wires 

or antenna.

●

Be careful not to scratch or 

damage the heater wires or 

antenna.

Cleaning the areas with 
satin-finish metal accents

Cleaning the leather areas

307

6-1. Maintenance and care

6

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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.

Cleaning the synthetic 
leather areas

308

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 ser-

vice information. They are well 

informed about the operation 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 
maintenance below.

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.323)

General maintenance

Scheduled maintenance

309

6-2. Maintenance

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■

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 message, follow the 

procedure described below:



4.2-inch display

1

Press 

 or 

 of the meter 

control switch to select 

.

2

Press 

 or 

 to select “Vehi-

cle Settings” and then press and 
hold 

.

3

Press 

 or 

 to select 

“Scheduled Maintenance” and 
then press 

.

4

Press 

 or 

 to select “Yes” 

and then press 

.

A message will be displayed on the 

multi-information display when the 

reset procedure has been com-

pleted.



7-inch display

1

Press 

 or 

 of the meter 

control switch to select 

.

2

Press 

 or 

 to select “Vehi-

cle Settings” and then press and 
hold 

.

3

Press 

 or 

 to select 

“Scheduled Maintenance” and 
then press 

.

4

Press 

 or 

 to select “Yes” 

and then press 

.

A message will be displayed on the 

multi-information display when the 

reset procedure has been com-

pleted.

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

310

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 operat-

ing

Turn the hybrid system off and 

ensure that there is adequate 

ventilation before performing 

maintenance checks.

Engine compartment

Items

Check points

12-volt battery

Check the connec-
tions. (



P.323)

Brake fluid

Is the brake fluid at 
the correct level? 
(



P.322)

Engine/power 
control unit 
coolant

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



P.320)

Engine oil

Is the engine oil at 
the correct level? 
(



P.318)

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.321)

Washer fluid

Is there sufficient 
washer fluid? 
(



P.324)

Vehicle interior

Items

Check points

Accelerator 
pedal

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

Brake pedal

• Does the brake 

pedal move 
smoothly?

• Does the brake 

pedal have 
appropriate 
clearance from 
the floor? 
(



P.425)

• Does the brake 

pedal have the 
correct amount 
of free play? 
(



P.425)

Items

Check points

311

6-2. Maintenance

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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?

Hybrid trans-
mission “Park” 
mechanism

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

Indica-
tors/buzzers

Do the indicators 
and buzzers func-
tion properly?

Lights

Do all the lights 
come on?

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?

Items

Check points

Seat belts

• Do the seat belts 

operate 
smoothly?

• The seat belts 

should not be 
damaged.

Seats

Do the seat con-
trols operate prop-
erly?

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.

Vehicle exterior

Items

Check points

Doors/trunk

Do the doors/trunk 
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.

Items

Check points

312

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 driving 
habits, the readiness codes may 
not be completely set.



When the fuel tank cap is 
loose

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

• The wiper blades 

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

• The wiper blades 

should clear the 
windshield with-
out streaking or 
skipping.

Items

Check points

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 follow-
ing situations:

313

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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

314

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.323)

• Warm water
• Baking soda
• Grease
• Conventional 

wrench (for terminal 
clamp bolts)

Brake fluid 
level 
(



P.322)

• 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.320)

• “Toyota Super Long 

Life Coolant” or a 
similar high quality 
ethylene gly-
col-based non-sili-
cate, non-amine, 
non-nitrite and 
non-borate coolant 
with long-life hybrid 
organic acid tech-
nology
For the U.S.A.:
“Toyota Super Long 
Life Coolant” is 
pre-mixed with 50% 
coolant and 50% 
deionized water.
For Canada:
“Toyota Super Long 
Life Coolant” is 
pre-mixed with 55% 
coolant and 45% 
deionized water.

• Funnel (used only 

for adding coolant)

Engine oil 
level 
(



P.318)

• “Toyota Genuine 

Motor Oil” or equiva-
lent

• Rag or paper towel
• Funnel (used only 

for adding engine 
oil)

Fuses 
(



P.354)

• Fuse with same 

amperage rating as 
original

Hybrid bat-
tery (trac-
tion battery) 
air intake 
vent 
(



P.347)

• Vacuum cleaner, 

etc.

Items

Parts and tools

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Light bulbs 
(



P.356)

• Bulb with same 

number and wattage 
rating as original

• Flathead screw-

driver

• Wrench

Radiator 
and con-
denser 
(



P.321)



Tire infla-
tion pres-
sure 
(



P.342)

• Tire pressure gauge
• Compressed air 

source

Washer 
fluid 
(



P.324)

• 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

●

Make sure that the “ACCES-

SORY” or “IGNITION ON” on 

the multi-information display 

and the “READY” indicator are 

both off.

●

Keep hands, clothing and tools 

away from the moving fans.

Items

Parts and tools

●

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 12-volt battery. Fuel and 

12-volt battery fumes are flam-

mable.

●

Be extremely cautious when 

working on the 12-volt battery. It 

contains poisonous and corro-

sive sulfuric acid.

■

When working near the elec-

tric cooling fans or radiator 

grille

Be sure the power switch is OFF.

With the power switch in ON, the 

electric cooling fans may auto-

matically start to run if the air con-

ditioning is on and/or the coolant 

temperature is high. (



P.321)

■

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.

316

6-3. Do-it-yourself maintenance

1

Pull the hood lock release 
lever.

The hood will pop up slightly.

2

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

3

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.

317

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■

Front

■

Rear



2WD models



AWD models

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

318

6-3. Do-it-yourself maintenance

Washer fluid tank (



P.324)

Engine coolant reservoir (



P.320)

Fuse boxes (



P.354)

Engine oil level dipstick (



P.319)

Engine oil filler cap (



P.319)

Power control unit coolant reservoir (



P.320)

Brake fluid reservoir (



P.322)

12-volt battery (



P.323)

Radiator (



P.321)

Condenser (



P.321)

Electric cooling fans

With the engine at operating 

temperature and turned off, 
check the oil level on the dip-
stick.

Engine compartment

Components

Checking and adding the 
engine oil

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■

Checking the engine oil

1

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

2

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

3

Wipe the dipstick clean.

4

Reinsert the dipstick fully.

5

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.

6

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.422



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.

1

Remove the oil filler cap by 
turning it counterclockwise.

2

Add engine oil slowly, check-
ing the dipstick.

3

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-

320

6-3. Do-it-yourself maintenance

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, 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

■

Engine coolant reservoir

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.414)

■

Power control unit coolant 
reservoir

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

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 coolant

321

6-3. Do-it-yourself maintenance

6

Maintena

nce
 a

nd ca

re

Reservoir
“MAX” line
“MIN” line

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



P.414)

■

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.
For the U.S.A.:
“Toyota Super Long Life Coolant” is 

a mixture of 50% coolant and 50% 

deionized water. (Minimum tem-

perature: -31°F [-35°C])
For 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/power control unit 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.

WARNING

■

When the hybrid system is 

hot

Do not remove the engine/power 

control unit coolant reservoir 

caps.
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 hybrid system is 

hot

Do not touch the radiator or con-

denser as they may be hot and 

cause serious injuries, such as 

burns.