Toyota Corolla (2020 year). Owner's manual - part 28

 

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Toyota Corolla (2020 year). Owner's manual - part 28

 

 

438

7-3. Do-it-yourself maintenance

2

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

1.8 L 4-cylinder (2ZR-FAE) 
engine

2.0 L 4-cylinder (M20A-FKS) 
engine

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.526, 527

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.

1.8 L 4-cylinder (2ZR-FAE) 
engine

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439

7-3. Do-it-yourself maintenance

7

Maintena

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2.0 L 4-cylinder (M20A-FKS) 
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-

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

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.

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440

7-3. Do-it-yourself maintenance

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

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the “LOW” 
line, add coolant up to the “FULL” 
line. (P.519)

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-

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 the engine cool-
ant

WARNING

When the engine is hot

Do not remove the engine coolant 

reservoir cap.
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

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441

7-3. Do-it-yourself maintenance

7

Maintena

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Checking fluid level

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

Adding fluid

1

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

2

Disconnect the claws and 
remove the service cover.

3

Remove the reservoir cap.

4

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
FMVSS No.116 DOT 4 or SAE 
J1704 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.

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

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442

7-3. Do-it-yourself maintenance

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.

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 engine switch on 

the charger is off when connecting 

and disconnecting the charger 

cables to the battery.

After recharging/reconnecting 

the battery (vehicles with a 

smart key system)

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

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

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443

7-3. Do-it-yourself maintenance

7

Maintena

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Add washer fluid in the following 
situations:

A washer does not work.

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

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.

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

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444

7-3. Do-it-yourself maintenance

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

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445

7-3. Do-it-yourself maintenance

7

Maintena

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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.537)

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 

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446

7-3. 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.255)

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

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447

7-3. Do-it-yourself maintenance

7

Maintena

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Front

To equalize tire wear and extend 
tire life, Toyota recommends that 
tire rotation is carried out at the 
same interval as tire inspection.
Vehicles with a tire pressure warn-
ing system: Do not fail to initialize 
the tire pressure warning system 
after tire rotation.

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.
If the tire pressure drops below 
a predetermined level, the driver 
is warned by a warning light. 
(P.485)

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.

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.

• 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.

Tire pressure warning 
system (if equipped)

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448

7-3. Do-it-yourself maintenance

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.

Tire pressure warning system certification

Except for vehicles sold in Canada

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449

7-3. Do-it-yourself maintenance

7

Maintena

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For vehicles sold in Canada

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.451)

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 (vehicles with a 
tire pressure warning sys-
tem)

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.

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450

7-3. Do-it-yourself maintenance

The tire pressure warning 
system must be initialized 
in the following circum-
stances:

When rotating front and rear 
tires which have different tire 
inflation pressures.

When changing the tire size.

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

When changing between two 

registered wheel sets.

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

How to initialize the tire 
pressure warning system

1

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

Initialization cannot be performed 

while the vehicle is moving.

2

Adjust the tire inflation pres-
sure to the specified cold tire 
inflation pressure level. 
(P.531)

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire 

pressure warning system will oper-

ate based on this pressure level.

3

Turn the engine switch to 
ON.

4

Press 

 or 

 of the meter 

control switch to select 

.

5

Press 

 or 

 to select 

“Vehicle Settings” and then 

press and hold 

.

6

Press 

 or 

 to select 

“TPWS” and then press 

.

7

Press 

 or 

 to select “Set 

Pressure”. Then press and 

hold 

 until the tire pres-

NOTICE

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.

To avoid damage to the tire 

pressure warning valves and 

transmitters

When a tire is repaired with liquid 

sealants, the tire pressure warn-

ing valve and transmitter may not 

operate properly. If a liquid seal-

ant is used, contact your Toyota 

dealer or other qualified service 

shop as soon as possible. Make 

sure to replace the tire pressure 

warning valve and transmitter 

when replacing the tire. (

P.449)

Initializing the tire pres-
sure warning system (if 
equipped)

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451

7-3. Do-it-yourself maintenance

7

Maintena

nce
 a

nd ca

re

sure warning light blinks 3 
times.

Initialization procedure

Make sure to carry out initializa-

tion 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 initializa-

tion, it is not necessary to press 

the reset switch again as initializa-

tion will restart automatically when 

the engine switch to ON for the 

next time.

If initialization has accidentally 

been started when it is not neces-

sary, adjust the tire inflation pres-

sure to the specified level when 

the tires are cold, and then per-

form the initialization procedure 

again.

When initialization of the tire 

pressure warning system has 

failed

Initialization can be completed in a 

few minutes. However, in the follow-

ing cases, the settings have not 

been recorded and the system will 

not operate properly. If repeated 

attempts to record tire inflation pres-

sure settings are unsuccessful, 

have the vehicle inspected by your 

Toyota dealer.

When attempting to start initializa-

tion, the tire pressure warning light 

does not blink 3 times.

After driving for a certain period of 

time since the initialization has 

been completed, the warning light 

comes on after blinking for 1 min-

ute.

The tire pressure warning valve 
and transmitter is equipped with 
a unique ID code. When replac-
ing a tire pressure warning valve 
and transmitter, it is necessary 
to register the ID code. Have the 
ID code registered by your Toy-
ota dealer.

Your vehicle is equipped with 
tire pressure warning system 
with the function to have ID 
codes registered for a second 
wheel set, for example a winter 
set, by Toyota dealer.
After registration of a second 
wheel set, either of these two 
wheel sets can be selected for 
usage with the tire pressure 
warning system.

WARNING

When initializing the tire pres-

sure warning system

Do not initialize the tire pressure 

warning system without first 

adjusting the tire inflation pres-

sure to the specified level. Other-

wise, 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 infla-

tion pressure is actually normal.

Registering ID codes

Selecting wheel set

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452

7-3. Do-it-yourself maintenance

Operating conditions for 
the function

This function will perform the 
change of wheel set only if a 
second wheel set has been 
registered. If no second wheel 
set has been registered, no 
change will be made when 
selecting this function in the 
menu.

Only a change between both 
registered wheel set is possi-
ble, mixing between these 
wheel sets is not supported.

How to change between 
wheel sets

1

Have the vehicle fitted with 
the preferred wheel set.

2

Press 

 or 

 of the meter 

control switch to select 

.

3

Press 

 or 

 to select 

“Vehicle Settings” and then 

press 

.

4

Press 

 or 

 to select 

“TPWS” and then press 

.

5

Press 

 or 

 to select 

“Change Wheel”. Then press 

and hold 

until the tire 

pressure warning light blinks 
slowly 3 times.

6

Initialize the tire pressure 
warning system. (P.450)

-------------------------------------------------------------------------------------------------------------------------------------------------------------

453

7-3. Do-it-yourself maintenance

7

Maintena

nce
 a

nd ca

re

The recommended cold tire 
inflation pressure and tire size 
are displayed on the tire and 
loading information label. 
(P.531)

Tire valve

Tire pressure gauge

1

Remove the tire valve cap.

2

Press the tip of the tire pres-
sure gauge onto the tire 
valve.

3

Read the pressure using the 
gauge gradations.

4

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.

5

After completing the tire infla-
tion pressure measurement 
and adjustment, apply soapy 
water to the valve and check 
for leakage.

6

Put the tire valve cap back 
on.

Tire inflation pressure check 

interval

You should check tire inflation pres-

sure every two weeks, or at least 

once a month. Do not forget to 

check the spare.

Effects of incorrect tire inflation 

pressure

Driving with incorrect tire inflation 

pressure may result in the following:

Reduced fuel economy

Reduced driving comfort and poor 

handling

Reduced tire life due to wear

Reduced safety

Damage to the drive train

If a tire needs frequent inflating, 

have it checked by your Toyota 

dealer.

Tire inflation pressure

Checking the specified 
tire inflation pressure

Inspection and adjust-
ment procedure

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