Toyota Corolla (2020 year). Owner's manual — part 29

454

7-3. Do-it-yourself maintenance

■

Instructions for checking tire

inflation pressure

When checking tire inflation pres-

sure, 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 reading.

●

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 generated in the tire. Do

not reduce tire inflation pressure

after driving.

●

Never exceed the vehicle capacity

weight.

Passengers and luggage weight

should be placed so that the vehi-

cle 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 seri-

ous 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

damage

●

Greater possibility of tire dam-

age while driving (due to road

hazards, expansion joints,

sharp edges in the road, etc.)

NOTICE

■

When inspecting and adjust-

ing tire inflation pressure

Be sure to put the tire valve caps

back on.

If a valve cap is not installed, dirt

or moisture may get into the valve

and cause an air leak, resulting in

decreased tire inflation pressure.

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When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diam-
eter, rim width and inset

*

.

Replacement wheels are avail-
able at your Toyota dealer.

*

: Conventionally referred to as off-

set.

Toyota does not recommend
using the following:


Wheels of different sizes or
types



Used wheels



Bent wheels that have been
straightened

■

When replacing wheels (vehi-

cles with a tire pressure warn-

ing system)

The wheels of your vehicle are

equipped with tire pressure warning

valves and transmitters that allow

the tire pressure warning system to

provide advance warning in the

event of a loss in tire inflation pres-

sure. Whenever wheels are

replaced, the tire pressure warning

valves and transmitters must be

installed. (P.449)

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 dif-

ferent size from those recom-

mended 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.

■

When installing the wheel

nuts

●

Be sure to install the wheel nuts

with the tapered ends facing

inward. Installing the nuts with

the tapered ends facing outward

can cause the wheel to break

and eventually cause the wheel

to come off while driving, which

could lead to an accident result-

ing in death or serious injury.

Tapered portion

●

Never use oil or grease on the

wheel bolts or wheel nuts.

Oil and grease may cause the

wheel nuts to be excessively

tightened, leading to bolt or disc

wheel damage. In addition, the

oil or grease can cause the

wheel nuts to loosen and the

wheel may fall off, causing an

accident and resulting in death

or serious injury. Remove any

oil or grease from the wheel

bolts or wheel nuts.

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7-3. Do-it-yourself maintenance



Use only Toyota wheel nuts
and wheel nut wrenches
designed for use with your
aluminum wheels.



When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).



Be careful not to damage the

aluminum wheels when using
tire chains.



Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels.

WARNING

■

Use of defective wheels pro-

hibited

Do not use cracked or deformed

wheels. Doing so could cause the

tire to leak air during driving, pos-

sibly causing an accident.

NOTICE

■

Replacing tire pressure warn-

ing valves and transmitters

(vehicles with a tire pressure

warning system)

●

Because tire repair or replace-

ment may affect the tire pres-

sure warning valves and

transmitters, make sure to have

tires serviced by your Toyota

dealer or other qualified service

shop. In addition, make sure to

purchase your tire pressure

warning valves and transmit-

ters at your Toyota dealer.

●

Ensure that only genuine Toyota

wheels are used on your vehi-

cle.

Tire pressure warning valves

and transmitters may not work

properly with non-genuine

wheels.

Aluminum wheel precau-
tions (if equipped)

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1

Turn the engine switch off.

2

Open the glove box. Slide off
the damper (if equipped).

3

Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.

4

Unlock the filter cover ( ),
pull the filter cover out of the

claws ( ), and remove the
filter cover.

5

Remove the filter case.

6

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

Replace the air conditioning filter

according to the maintenance

schedule. In dusty areas or areas

with heavy traffic flow, early replace-

Air conditioning filter

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

Removing the air condi-
tioning filter

458

7-3. Do-it-yourself maintenance

ment may be required. (For sched-

uled maintenance information,

please refer to the “Scheduled

Maintenance Guide” or “Owner’s

Manual Supplement”.)

■

If air flow from the vents

decreases dramatically

The filter may be clogged. Check

the filter and replace if necessary.

*

: If equipped

■

If the key battery is depleted

The following symptoms may occur:

●

The smart key system (if

equipped) and wireless remote

control will not function properly.

●

The operational range will be

reduced.



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2032

■

Use a CR2032 lithium battery

●

Batteries can be purchased at

your Toyota dealer, local electrical

appliance shops or camera stores.

●

Replace only with the same or

equivalent type recommended by

the manufacturer.

●

Dispose of used batteries accord-

ing to local laws.

NOTICE

■

When using the air condition-

ing system

Make sure that a filter is always

installed.

Using the air conditioning system

without a filter may cause damage

to the system.

■

To prevent damage to the fil-

ter cover

When moving the filter cover in

the direction of arrow to release

the fitting, pay attention not to

apply excessive force to the

claws. Otherwise, the claws may

be damaged.

Wireless remote con-

trol/electronic key bat-

tery

*

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

Items to prepare

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7-3. Do-it-yourself maintenance

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

Vehicles without a smart key
system

1

Remove the key cover.

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a rag.

2

Remove the battery cover.

If the battery cover is difficult to

remove, lift the edge to remove it.

3

Remove the depleted battery
using a small flathead screw-
driver.

Insert a new battery with the “+” ter-

minal facing up.

4

Install the battery cover with
the tab facing up.

Push the entire edge of the battery

cover into the key.

5

Install the key cover.

Align the key cover with the key

and then press it straight into the

key.
Make sure that the key cover is

securely installed without any gaps

between it and the key.

6

Operate the

or

switch

and check that the doors can
be locked/unlocked.

Replacing the battery

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7-3. Do-it-yourself maintenance



Vehicles with a smart key sys-
tem

1

Release the lock and remove
the mechanical key.

2

Remove the key cover.

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a rag.

3

Remove the depleted battery
using a small flathead screw-
driver.

When removing the cover, the elec-

tronic key module may stick to the

cover and the battery may not be

visible. In this case, remove the

electronic key module in order to

remove the battery.
Insert a new battery with the “+” ter-

minal facing up.

4

When installing the key cover
and mechanical key, install
by conducting step

2

and

step

1

with the directions

reversed.

5

Operate the

or

switch

and check that the doors can
be locked/unlocked.

WARNING

■

Removed battery and other

parts

These parts are small and if swal-

lowed by a child, they can cause

choking. Keep away from chil-

dren. Failure to do so could result

in death or serious injury.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of

appropriate size. Applying exces-

sive force may deform or damage

the cover.

■

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.

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1

Turn the engine switch off.

2

Open the fuse box cover.



Engine compartment: type A
fuse box

Push the tabs in and lift the lid off.



Engine compartment: type B
fuse box

Push the tabs in and lift the lid off.

NOTICE

●

Do not touch or move any other

component inside the remote

control.

●

Do not bend either of the battery

terminals.

■

When removing the battery

cover (vehicles without a

smart key system)

Do not forcibly remove the battery

cover, otherwise it may be dam-

aged.

If the battery cover is difficult to

remove, lift the edge to remove it.

Checking and replac-

ing fuses

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

Checking and replacing
fuses

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7-3. Do-it-yourself maintenance



Under the driver’s side instru-
ment panel

Remove the lid.
Make sure to push the claw when
removing/installing the lid.

3

Remove the fuse with the
pullout tool.
Only type A fuse can be
removed using the pullout
tool.

4

Check if the fuse is blown.

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 A

Normal fuse
Blown fuse



Type B

Normal fuse
Blown fuse



Type C

Normal fuse
Blown fuse

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

Type D

Normal fuse
Blown fuse



Type E

Normal fuse
Blown fuse

■

After a fuse is replaced

●

When installing the lid, make sure

that the tab is installed securely.

●

If the lights do not turn on even

after the fuse has been replaced,

a bulb may need replacement.

(P.464)

●

If the replaced fuse blows again,

have the vehicle inspected by

your Toyota dealer.

■

If there is an overload in a cir-

cuit

The fuses are designed to blow, pro-

tecting the wiring harness from

damage.

■

When replacing light bulbs

Toyota recommends that you use

genuine Toyota products designed

for this vehicle.

Because certain bulbs are con-

nected to circuits designed to pre-

vent overload, non-genuine parts of

parts not designed for this vehicle

may be unusable.

WARNING

■

To prevent system break-

downs and vehicle fire

Observe the following precau-

tions.

Failure to do so may cause dam-

age to the vehicle, and possibly a

fire or injury.

●

Never use a fuse of a higher

amperage rating than that indi-

cated, or use any other object in

place of a fuse.

●

Always use a genuine Toyota

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 over-

load determined and repaired by

your Toyota dealer as soon as

possible.

464

7-3. Do-it-yourself maintenance

Check the wattage of the light
bulb to be replaced. (P.533)

■

Front

Front side marker lights
Front turn signal/parking
lights (vehicles without side
turn signal lights)

■

Rear

Back-up lights
Rear turn signal lights
Rear side marker lights (bulb
type)

■

Bulbs that need to be
replaced by your Toyota
dealer



Headlights/daytime running
lights



Parking lights (vehicles with
side turn signal lights)



Front turn signal lights (vehi-
cles with side turn signal
lights)



LED accent lights (if
equipped)



Side turn signal lights (if
equipped)



Tail lights



Stop lights



Rear side marker lights (LED
type)



High mounted stoplight



License plate lights

Light bulbs

You may replace the follow-
ing bulbs yourself. The diffi-
culty level of replacement
varies depending on the
bulb. If necessary bulb
replacement seems difficult
to perform, contact your
Toyota dealer.

For more information about
replacing other light bulbs,
contact your Toyota dealer.

Preparing for light bulb
replacement

Bulb locations

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■

LED light bulbs

The lights other than the front turn

signal lights/parking lights (vehicles

without side turn signal lights), front

side marker lights, rear turn signal

lights, rear side marker lights (bulb

type) and back-up lights consist of a

number of LEDs. If any of the LEDs

burn out, take your vehicle to your

Toyota dealer to have the light

replaced.

■

Condensation build-up on the

inside of the lens

In certain situations, such as when

driving in the rain or when washing

the vehicle, condensation may form

on the inner side of the headlight

lens and other lights. As each light

has a ventilation hole, moist air may

enter. If the ambient temperature is

low, condensation may form tempo-

rarily, but it will dissipate as the

inside of the light is warmed up. As

the condensation is due to a phe-

nomenon similar to windows fogging

in the rain, it does not indicate a

malfunction.
Contact your Toyota dealer for more

information in the following situa-

tions:

●

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.463

■

Front turn signal/parking
lights (vehicles without side
turn signal lights)

1

Turn the bulb base counter-
clockwise.



Type A



Type B

2

Remove the light bulb.



Type A

Replacing light bulbs

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7-3. Do-it-yourself maintenance



Type B

3

When installing, reverse the
steps listed.

■

Front side marker lights

1

Turn the bulb base counter-
clockwise.

2

Remove the light bulb.

3

When installing, reverse the
steps listed.

■

Rear turn signal lights and
rear side marker lights
(vehicles with blub type
rear side marker lights)

1

Open the trunk lid.

2

Insert a flathead screwdriver
between the cover and the
light assembly and pry up the
cover to disengage the claws
(indicated by a dotted line).

To prevent scratching the vehicle,

wrap the tip of the flathead screw-

driver with a cloth, etc.

3

Pull the cover toward the rear
of the vehicle and remove the
cover.

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4

Remove the 2 screws and
then remove the light assem-
bly by pulling it straight back.

5

Turn the bulb base counter-
clockwise.

Rear side marker lights
Rear turn signal lights

6

Remove the light bulb.

Rear side marker lights
Rear turn signal lights

7

When installing the light bulb,
install it by conducting steps

6

and

5

with the directions

reversed.

8

Install the light assembly and
then install the 2 screws.

Align the guide

and pin

on

the light assembly with the mount-

ing when installing it.

9

Install the cover.

■

Rear turn signal lights
(vehicles with LED type rear
side marker lights)

1

Open the trunk lid.

2

Insert a flathead screwdriver
between the cover and the
light assembly and pry up the
cover to disengage the claws
(indicated by a dotted line).

To prevent scratching the vehicle,

wrap the tip of the flathead screw-

driver with a cloth, etc.

468

7-3. Do-it-yourself maintenance

3

Pull the cover toward the rear
of the vehicle and remove the
cover.

4

Remove the 2 screws and
then remove the light assem-
bly by pulling it straight back.

5

Turn the bulb base counter-
clockwise.

6

Remove the light bulb.

7

When installing the light bulb,
install it by conducting steps

6

and

5

with the directions

reversed.

8

Install the light assembly and
then install the 2 screws.

Align the guide

and pin

on

the light assembly with the mount-

ing when installing it.

9

Install the cover.

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■

Back-up lights

1

Open the trunk lid, remove
the clips, and pull back the
cover.

2

Turn the bulb base counter-
clockwise and remove it.

3

Remove the light bulb.

4

When installing, reverse the
steps listed.

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. Fail-

ure 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.