Toyota Prius (2021 year). Manual in english — part 9

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6-3. Do-it-yourself maintenance

■

Checking fluid level

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

■

Adding fluid

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

Disconnect the claws and
remove the service cover.

Brake fluid

1

2

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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.

■

Brake fluid can absorb moisture from the air

Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.

3

4

Fluid type

SAE J1703 or FMVSS No.116 DOT 3 brake fluid
SAE J1704 or FMVSS No.116 DOT 4 brake fluid

Items

Clean funnel

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 brake 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.

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Open the lid.

Vehicles with the level gauge: Check the washer fluid level on the
level gauge.

“NORMAL”
“LOW”

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

Washer fluid

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2

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Using the gauge (if equipped)

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

■

When adding washer fluid

Do not add washer fluid when the hybrid system is hot or operating 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 leading to problems of the washer fluid not spraying.

■

Diluting washer fluid

Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

Current
fluid level

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6-3. Do-it-yourself maintenance

Tires

Check if the treadwear indicators 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 (if equipped) condition and pressure if not
rotated.

New tread
Worn tread
Treadwear indicator

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



” mark,

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

Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.

Checking tires

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Rotate the tires in the order shown.

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 pressure warning system after tire rota-

tion.

Tire rotation



Vehicles without full-size spare
tire



Vehicles with full-size spare
tire

Front

Front

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Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise.
If the tire pressure drops below a predetermined level, the driver is
warned by a warning light. (



P. 595)

The compact spare tire is not equipped with a tire pressure warning
valve and transmitter.

◆

Installing tire pressure warning valves and transmitters

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 valve and transmitter ID
codes registered by your Toyota dealer. (



P. 535)

◆

Initializing the tire pressure warning system

■

The tire pressure warning system must be initialized when the
tire inflation pressure is changed such as when changing trav-
elling speed or load weight.

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

Tire pressure warning system

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■

How to initialize the tire pressure warning system

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

Initialization cannot be performed while the vehicle is moving.

Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (



P. 672)

Make sure to adjust the tire pressure to the specified cold tire infla-

tion pressure level. The tire pressure warning system will operate

based on this pressure level.

Turn the power switch to ON mode.

Switch the multi-information display to the

screen.

(



P. 151)

Press

or

of the meter control switches, select

(“Vehicle Settings”), and then press

.

Press

or

of the meter control switches, select “Mainte-

nance System”, and then press

.

Press

or

of the meter control switches, select “TPMS”,

and then press

.

Press and hold

.

When

initialization

com-

pletes, a message is dis-
played

on

the

multi-

information display and the
tire pressure warning light
illuminates.

◆

Registering ID codes

The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Toyota dealer.

1

2

3

4

5

6

7

8

Until Complete

9

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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 cannot 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.

■

Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not reg-

istered, the tire pressure warning system will not work properly. After driv-

ing for about 20 minutes, the tire pressure warning light blinks for 1

minute and stays on to indicate a system malfunction.

■

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.

■

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.

■

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. 678)

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Tire types

●

Summer tires
Summer tires are high-speed performance 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 provide better traction in snow and to

be adequate for driving in most winter conditions as well as for use

year-round. All season tires, however, do not have adequate traction

performance compared with snow tires in heavy or loose snow. Also, all

season tires fall short in acceleration 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

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. 430)

■

If the tread on snow tires wears down below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is lost.

■

Low profile tires (vehicles with 215/45R17 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.

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Situations in which the tire pressure warning system may not oper-

ate properly

●

In the following cases, the tire pressure warning system may not operate

properly.
• If non-genuine Toyota wheels are used.

• When a replacement tire is used, the system may not operate cor-

rectly due to the structure of the replacement 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 specified

level.

• If wheel without the tire pressure warning valve and transmitter is

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 facility 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.

■

The initialization operation

●

Make sure to carry out initialization after adjusting the tire inflation pres-

sure.

Also, make sure the tires are cold before carrying out initialization or tire

inflation pressure adjustment.

●

If you have accidentally turned the power switch off during initialization,

it is not necessary to press the reset switch again as initialization will

restart automatically when the power switch has been turned to ON

mode for the next time.

●

If you accidentally press the reset switch when initialization is not neces-

sary, adjust the tire inflation pressure to the specified level when the

tires are cold, and conduct initialization again.

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■

When initialization of the tire pressure warning system has failed

Initialization can be completed in a few minutes. However, in the following

cases, the settings have not been recorded and the system will not oper-

ate properly. If repeated attempts to record tire inflation pressure settings

are unsuccessful, have the vehicle inspected by your Toyota dealer.

●

When operating the initialization of the system, the tire pressure warning

light does not flash 3 times and the setting message does not appear on

the multi-information display.

●

After driving for a certain period of time since the initialization has been

completed, the warning light comes on after blinking for 1 minute.

■

Certifications for the tire pressure warning system



For vehicles sold in the U.S.A., Hawaii, American Samoa, Guam,

Saipan and Puerto Rico

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6-3. Do-it-yourself maintenance



For vehicles sold in Canada

WARNING

■

When inspecting or replacing tires

Observe the following precautions to prevent accidents.

Failure to do so may cause damage to parts of the drive train as well as

dangerous handling characteristics, which may lead to an accident

resulting in death or serious injury.

●

Do not mix tires of different makes, models or tread patterns.

Also, do not mix tires of remarkably different treadwear.

●

Do not use tire sizes other than those recommended by Toyota.

●

Do not mix differently constructed 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 previously.

■

When initializing the tire pressure warning system

Do not initialize the tire pressure warning system without first adjusting

the tire inflation pressure to the specified level. Otherwise, the tire pres-

sure warning light may not come on even if the tire inflation pressure is

low, or it may come on when the tire inflation pressure is actually nor-

mal.

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NOTICE

■

Repairing or replacing tires, wheels, tire pressure warning valves,

transmitters and tire valve caps

●

When removing or fitting the wheels, tires or the tire pressure warning

valves and transmitters, contact your Toyota dealer as the tire pres-

sure warning valves and transmitters may be damaged if not handled

correctly.

●

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 transmit-

ters

When a tire is repaired with liquid sealants, the tire pressure warning

valve and transmitter may not operate properly. If a liquid sealant is

used, contact your Toyota dealer or other qualified service shop as soon

as possible. After use of liquid sealant, make sure to replace the tire

pressure warning valve and transmitter when repairing or replacing the

tire. (



P. 534)

■

Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot-

holes.

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.

■

Low profile tires (vehicles with 215/45R17 tires)

Low profile tires may cause greater damage than usual to the wheel

when receiving impact from the road surface. Therefore pay attention to

the following:

●

Be sure to use proper tire inflation pressure. If tires are under-inflated,

they may be damaged more severely.

●

Avoid pot holes, uneven pavement, curbs and other road hazards.

Failure to do so can lead to severe tire and wheel damage.

■

If tire inflation pressure of each tire becomes low while driving

Do not continue driving, or your tires and/or wheels may be ruined.

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6-3. Do-it-yourself maintenance

Tire inflation pressure

The recommended cold tire infla-
tion pressure and tire size are dis-
played on the tire and loading
information label. (



P. 672)

Tire inflation pressure

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Tire valve
Tire pressure gauge

Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
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.
After completing the tire inflation pressure measurement and
adjustment, apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.

■

Tire inflation pressure check interval

You should check tire inflation pressure 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.

Inspection and adjustment procedure

1
2

1

2

3

4

5

6

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6-3. Do-it-yourself maintenance

■

Instructions for checking tire inflation pressure

When checking tire inflation pressure, 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 appear-

ance.

●

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 vehicle 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 serious 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 damage while driving (due to road hazards,

expansion joints, sharp edges in the road, etc.)

NOTICE

■

When inspecting and adjusting 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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Wheels

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

*

.

Replacement wheels are available at your Toyota dealer.

*

: Conventionally referred to as “offset”.

Toyota does not recommend using the following:

●

Wheels of different sizes or types

●

Used wheels

●

Bent wheels that have been straightened

●

Use only Toyota wheel nuts and 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 balance weights or equivalent and a plas-
tic or rubber hammer when balancing your 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

Aluminum wheel precautions

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6-3. Do-it-yourself maintenance

■

When replacing wheels

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 pressure.

Whenever wheels are replaced, tire pressure warning valves and trans-

mitters must be installed. (



P. 534)

WARNING

■

When replacing wheels

●

Do not use wheels that are a different size from those recommended 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 accident, causing death or seri-

ous injury.

■

When installing the wheel nuts

●

Be sure to install the wheel nuts with the tapered ends facing inward.

(



P. 640)

Installing the nuts with the tapered ends facing outward can cause the

wheel to break and eventually cause the wheel to come off while driv-

ing, which could lead to an accident resulting in death or serious injury.

●

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.

■

Use of defective wheels prohibited

Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air during driving, possibly causing

an accident.

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NOTICE

■

Replacing tire pressure warning valves and transmitters

●

Because tire repair or replacement may affect the tire pressure warn-

ing 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 transmitters at your

Toyota dealer.

●

Ensure that only genuine Toyota wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly

with non-genuine wheels.

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6-3. Do-it-yourself maintenance

Air conditioning filter

Turn the power switch off.
Open the glove box and slide
off the damper.

Push in each side of the glove
box to disconnect the claws,
and then slowly and fully open
the glove box while supporting
it.

With the glove box fully open,
slightly lift up the glove box and
pull toward the seat to detach
the bottom of the glove box.

Do not use excessive force if the
glove box does not detach when
lightly pulled. Instead, pull toward
the seat while slightly adjusting the
height of the glove box.

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

Replacing the air conditioning filter

1

2

3

4

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Remove the filter cover.

Unlock the filter cover.
Move the filter cover in the
direction of the arrow, and then
pull it out of the claws.

Remove the filter case.

Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.

The “



UP” marks shown on the fil-

ter should be pointing up.

When installing, reverse the steps listed.

5

1
2

6

7

8

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■

Checking interval

Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled 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.

NOTICE

■

When using the air conditioning system

Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

■

When removing the glove box

Always follow the specified procedure to remove the glove box (



P. 548). If

the glove box is removed without following the specified procedure, the
hinge of the glove box may become damaged.

■

To prevent damage to the filter cover

When moving the filter cover in the direc-
tion of arrow to release the fitting, pay
attention not to apply excessive force to
the claws. Otherwise, the claws may be
damaged.

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Cleaning the hybrid battery (traction bat-

tery) air intake vent and filter

Remove the dust from the air
intake vent with a vacuum
cleaner, etc.

Make sure to only use a vacuum to
suck out dust and clogs. Attempt-
ing to blow out dust and clogs
using an airgun, etc. may push it
into the air intake vent. (



P. 555)

If dust and clogs cannot be completely removed with the air intake
vent cover installed, remove the cover and clean the filter.

Turn the power switch off.
Using a Phillips screwdriver,
remove the clip.

To prevent the fuel economy from being affected, visually
inspect the hybrid battery (traction battery) air intake vent peri-
odically for dust and clogs. If it is dusty or clogged or if “Mainte-
nance required for Traction battery cooling parts See owner’s
manual” is shown on the multi-information display, clean the air
intake vent using the following procedures:

Cleaning the air intake vent

If dust and clogs cannot be completely removed

1

2

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Remove the air intake vent
cover.

Pull the cover as shown in
the illustration to disengage
the 5 claws, starting from the
claw in the upper right cor-
ner.
Pull the cover toward the
front of the vehicle to remove
it.

Remove the air intake vent fil-
ter.

Disengage the 1 claw as
shown in the illustration.
Disengage the 2 claws to
remove the filter from the
cover.

Remove the dust and clogs
from the filter using a vacuum
cleaner, etc.

Make sure to also remove the dust
and clogs from the inside of the air
intake vent cover.

3

1

2

4

1

2

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Reinstall the filter to the cover.

Engage the filter to the 2
claws as shown in the illus-
tration.
Engage the 1 claw to install
the filter.

Make sure that the filter is not
crooked or deformed when install-
ing it.

Install the air intake vent cover.

Insert the tab of the cover as
shown in the illustration.
Push the cover to engage the
5 claws.

Install the clip.

6

1

2

7

1

2

8

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■

Scheduled maintenance of the air intake vent is necessary when

In some situations such as when the vehicle is used frequently or in heavy
traffic or dusty areas, the air intake vent may need to be cleaned more regu-
larly. For details, refer to the “Scheduled Maintenance Guide” or “Owner’s
Manual Supplement”.

■

Cleaning the air intake vent

●

Dust in the air intake vent may interfere with the cooling of the hybrid battery
(traction battery). If charging/discharging of the hybrid battery (traction bat-
tery) becomes limited, the distance that the vehicle can be driven using the
electric motor (traction motor) may be reduced and the fuel economy may
be reduced. Inspect and clean the air intake vent periodically.

●

Improper handling of the air intake vent cover and filter may result in dam-
age to them. If you have any concerns about cleaning the filter, contact your
Toyota dealer.

■

If “Maintenance required for Traction battery cooling parts See owner’s
manual” is shown on the multi-information display

●

If this warning message is shown on the multi-information display, remove
the air intake vent cover and clean the filter. (



P. 551)

●

After cleaning the air intake vent, start the hybrid system and check that the
warning message is no longer shown.
It may take approximately 20 minutes after the hybrid system is started until
the warning message disappears. If the warning message does not disap-
pear, have the vehicle inspected by your Toyota dealer.

WARNING

■

When cleaning the air intake vent

●

Do not use water or other liquids to clean the air intake vent. If water is
applied to the hybrid battery (traction battery) or other components, a mal-
function or fire may occur.

●

Before cleaning the air intake vent, make sure to turn the power switch off
to stop the hybrid system.

■

When removing the air intake vent cover

Do not touch the service plug located near the air intake vent. (



P. 91)

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555

6-3. Do-it-yourself maintenance

6

Mainten

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NOTICE

■

When cleaning the air intake vent

■

To prevent damage to the vehicle

●

Do not allow water or foreign matter to enter the air intake vent when the
cover is removed.

●

Carefully handle the removed filter so that it will not be damaged. If the fil-
ter is damaged, have it replaced with a new filter by your Toyota dealer.

●

Make sure to reinstall the filter and cover to their original positions after
cleaning.

●

Do not install anything to the air intake vent other than the exclusive filter
for this vehicle or use the vehicle without the filter installed.

■

If “Maintenance required for Traction battery cooling parts See owner’s
manual” is shown on the multi-information display

If the vehicle is continuously driven with the warning message (indicating
that charging/discharging of the hybrid battery [traction battery] may
become limited) displayed, the hybrid battery (traction battery) may mal-
function. If the warning message is shown, clean the air intake vent immedi-
ately.

When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake vent, which may affect
the performance of the hybrid battery
(traction battery) and cause a malfunc-
tion.

556

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Wiper insert replacement

■

Windshield wiper blade removal and installation

While securely supporting
the wiper blade connection
by hand, press the lock knob
to release the lock, and then
pull out the wiper blade.

Align the wiper blade with the
connecting portion of the
wiper arm, and then slide it in
the direction it was removed
from.

After installing the wiper blade,
check that the connection is
locked.

■

Wiper insert replacement

Pull the wiper insert until it
protrudes from the slit on the
back of the wiper blade.

When replacing the wiper insert, perform the following proce-
dure to operate each wiper.

Windshield wipers

1

2

1

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557

6-3. Do-it-yourself maintenance

6

Mainten

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Pull out the end of the wiper
insert from the slit, and then
pull out the rest of the wiper
insert.

When installing a new wiper
insert, perform the procedure
in reverse.

After installation, check that the
end of the wiper insert is
installed all the way to the end of
the cap.

Slide the rear window wiper
arm head cap.

Move the wiper blade until a
click sound can be heard and
the claw detaches, and then
remove the wiper blade from
the wiper arm.

2

3

Rear window wiper (if equipped)

1

2

558

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Pull the wiper insert out past
the stopper on the wiper blade,
and then continue to pull until it
is completely removed.

Lightly grasp between the claws of
the wiper blade to allow the wiper
insert to lift up, making it easier to
remove.

Remove the 2 metal plates from
the old wiper insert and install
them to the replacement wiper
insert.

Insert the wiper insert starting from the claw at the center of the
wiper blade. Pass the wiper insert through the 3 claws so that it
sticks out from the stopper, and then pass the wiper insert through
the final remaining claw.

Applying a small amount of washer fluid to the wiper insert can make it
easier to insert the claws into the grooves.

3

4

5

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559

6-3. Do-it-yourself maintenance

6

Mainten

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Check that the wiper blade
claws are fitted in the grooves
of the wiper insert.

• If the wiper blade claws are

not fitted in the grooves of
the wiper insert, grasp the
wiper insert and slide it back
and forth multiple times to
insert the claws into the
grooves.

• Lightly lift up the center of the wiper insert to make the insert eas-

ier to slide.

When installing a wiper blade, reverse the procedure in steps
and

.

After installing the wiper blade, check that the connection is locked.

■

Wiper blade and wiper insert handling

Improper handling may result in damage to the wiper blades or wiper insert. If
you have any concerns about replacing the wiper blades or wiper insert your-
self, contact your Toyota dealer.

■

Front wiper blade cap

The cap cannot be removed, as it is integrated with the front wiper blade.

6

NOTICE

■

To prevent damage

●

Be careful not to damage the claws when replacing the wiper insert.

●

After the wiper blade is removed from the wiper arm, place a cloth, etc.,
between the rear window and wiper arm to prevent damage to the rear
window.

●

Be sure not to pull excessively on the wiper insert or deform its metal
plates.

7

1

2

560

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Electronic key battery

●

Flathead screwdriver

●

Lithium battery CR2032

Release the lock and take out
the mechanical key.

Remove the cover.

Use a screwdriver of an appropri-
ate size. Forcedly prying may
cause the cover damaged.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.

Replace the battery with a new one if it is depleted.

You will need the following items:

Replacing the battery

1

2

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561

6-3. Do-it-yourself maintenance

6

Mainten

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Remove the depleted battery.

When removing the cover, if the
battery cannot be seen due to the
electronic key module attaching to
the upper cover, remove the elec-
tronic key module from the cover
so that the battery is visible as
shown in the illustration.
When removing the battery, use a
screwdriver of an appropriate size.
Insert a new battery with the “+” terminal facing up.

When installing, reverse the steps listed.

■

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 manu-
facturer.

●

Dispose of used batteries according to the local laws.

■

If the electronic key battery is depleted

The following symptoms may occur:

●

The smart key system and wireless remote control will not function properly.

●

The operational range will be reduced.

3

4

562

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

WARNING

■

Battery precautions

Observe the following precautions.
Failure to do so may result in death or serious injury.

●

Do not swallow the battery. Doing so may cause chemical burns.

●

A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.

●

Keep away new and removed batteries from children.

●

If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact your
Toyota dealer.

●

If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.

■

To prevent battery explosion or leakage of flammable liquid or gas

●

Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.

●

Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.

●

Do not burn, break or cut a battery.

NOTICE

■

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.

●

Do not touch or move any other component inside the remote control.

●

Do not bend either of the battery terminals.

563

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

6

Mainten

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Checking and replacing fuses

Turn the power switch off.
Open the fuse box cover.



Engine compartment type A fuse box

While pushing the 2 claws, lift up
the cover.

When closing the cover, make sure
to attach the 2 claws.



Engine compartment type B fuse box

While pushing the 3 claws, lift up
the cover.

When closing the cover, make sure
to attach the 3 claws.



Left side instrument panel

Remove the lid.

Make sure to press the claw during
removal or installation.

If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.

1

2

564

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

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

Check if the fuse is blown.

Normal fuse
Blown fuse

Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.

3

4

1
2



Type A



Type B



Type C

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565

6-3. Do-it-yourself maintenance

6

Mainten

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■

After a fuse is replaced

●

If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (



P. 568)

●

If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.

■

If there is an overload in a circuit

The fuses are designed to blow, protecting 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 connected to circuits designed to prevent
overload, nongenuine parts or parts not designed for this vehicle may be
unusable.

WARNING

■

To prevent system breakdowns and vehicle fire

Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.

●

Never use a fuse of a higher amperage rating than that indicated, 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 overload determined and repaired by your
Toyota dealer as soon as possible.

566

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Headlight aim

Adjustment bolt A
Adjustment bolt B

Make sure the vehicle has a full tank of gasoline and the area
around the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.

Vertical movement adjusting bolts

1
2

Before checking the headlight aim

1

2

3

4

PRIUS_OM_OM47E09U_(U)

567

6-3. Do-it-yourself maintenance

6

Mainten

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Using a Phillips-head screw-
driver, turn bolt A in either direc-
tion.

Remember the turning direction
and the number of turns.

Turn bolt B the same number of
turns and in the same direction
as step

.

If the headlight cannot be adjusted
using this procedure, take the vehi-
cle to your Toyota dealer to adjust
the headlight aim.

Adjusting the headlight aim

1

2

1

568

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Light bulbs

Check the wattage of the light bulb to be replaced. (



P. 674)

You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. As there is a
danger that components may be damaged, we recommend that
replacement is carried out by your Toyota dealer.

Preparing for light bulb replacement

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569

6-3. Do-it-yourself maintenance

6

Mainten

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■

Front

Parking light (bulb type)

*

1, 2

Front side marker light

*

1

: If equipped

*

2

: The location of the parking lights may differ depending on the grade,

etc.

■

Rear

Bulb locations

1
2

Back-up light
Rear turn signal light

Rear side marker light

1
2

3

570

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

■

Parking lights (bulb type) (if equipped)

Remove the clips and the engine compartment cover.

There are two types of clips used, which vary depending on the vehicle.

Turn the bulb base counter-
clockwise.

Remove the light bulb.

When installing the bulb, reverse the steps

and

in reverse.

Attach the engine compart-
ment cover and install the
clips.

Push up center portion of the
clips (type A only).
Insert and press the clips.

Replacing light bulbs

1

Type B

Type A

2

3

4

2

3

Type A

Type B

5

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571

6-3. Do-it-yourself maintenance

6

Mainten

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■

Front side marker lights

For the right side only:
Remove the clip and slide
the washer tank inlet pipe to
the right.

To prevent damage to the cover,
protect the tip of the screwdriver
with a rag.

Turn the bulb base counter-
clockwise.

Remove the light bulb.

When installing the bulb, reverse the steps

and

in reverse.

For the right side only: Install
the washer tank inlet pipe
and the clip by conducting
step

in reverse.

1

2

3

4

2

3

5

1

572

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

■

Rear turn signal lights, back-up lights and rear side maker
lights

Open the back door. Insert a
screwdriver into the cover on
the side of the light and
detach the claws indicated by
the dotted lines near the
exterior of the vehicle. Then,
pry the cover and pull it diag-
onally backward to the lug-
gage compartment to detach
the claws indicated by the
dotted lines near the vehicle
interior.

To prevent damage to the cover, protect the tip of the screwdriver with a
rag.

Remove the 2 screws.

Pull the light unit toward the
rear of the vehicle to remove
it.

1

2

3

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6-3. Do-it-yourself maintenance

6

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Turn the bulb base counterclockwise.

4



Back-up light



Rear turn signal light



Rear side maker light

574

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Remove the light bulb.

5



Back-up light



Rear turn signal light



Rear side maker light

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6-3. Do-it-yourself maintenance

6

Mainten

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Install a new light bulb then install the bulb base to the light unit
by inserting it and turning the bulb base clockwise.

6



Back-up light



Rear turn signal light



Rear side maker light

576

PRIUS_OM_OM47E09U_(U)

6-3. Do-it-yourself maintenance

Align the grooves on the light
unit with the claws, and insert
the light unit straight so that
the 2 pins on the light unit fit
into the holes. Confirm that
the light unit is completely
secured.

Install the 2 screws.

Install the cover.

7

8

9

PRIUS_OM_OM47E09U_(U)

577

6-3. Do-it-yourself maintenance

6

Mainten

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■

Replacing the following bulbs

If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.

●

Headlights and daytime running lights

●

Parking lights (LED type: if equipped)

●

Fog lights

●

Front turn signal lights

●

Tail lights

●

Stop lights

●

High mounted stoplight

●

License plate lights

■

LED lights

The lights other than the parking lights (bulb type: if equipped), front side
marker lights, rear turn signal lights, rear side maker lights and back-up lights
each 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

Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:

●

Large drops of water have built up on the inside of the lens.

●

Water has built up inside the light.

■

When replacing light bulbs



P. 565

578

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6-3. Do-it-yourself maintenance

WARNING

■

Replacing light bulbs

●

Be sure to stop the hybrid system and 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. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.

●

Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.

■

To prevent damage or fire

●

Make sure bulbs are fully seated and locked.

●

Check the wattage of the bulb before installing to prevent heat damage.

579

PRIUS_OM_OM47E09U_(U)

7

When trouble arises

7-1. Essential information

Emergency flashers . . .. 580
If your vehicle has to

be stopped in an
emergency . . . . . .. 581

If the vehicle is trapped in

rising water . . . . . . 582

7-2. Steps to take in an

emergency

If your vehicle needs to

be towed . . . . . . . 584

If you think something is

wrong . . . . . . . .. 591

If a warning light turns on

or a warning buzzer
sounds . . . . . . . 592

If a warning message is

displayed. . . . . . . 603

If you have a flat tire

(vehicles without
spare tire). . . . . . 611

If you have a flat tire

(vehicles with
spare tire). . . . . . 631

If the hybrid system will

not start. . . . . . ... 645

If the electronic key does

not operate properly. . 647

If the 12-volt battery is

discharged . . . . . .. 650

If your vehicle overheats ... 656
If the vehicle becomes

stuck . . . . . . . ... 661

580

PRIUS_OM_OM47E09U_(U)

7-1. Essential information

Emergency flashers

Press the switch.

All the turn signal lights will flash. To turn them off, press the switch once
again.

■

Emergency flashers

●

If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt
battery may discharge.

●

If any of the SRS airbags deploy (inflate) or in the event of a strong rear
impact, the emergency flashers will turn on automatically.
The emergency flashers will turn off automatically after operating for approx-
imately 20 minutes. To manually turn the emergency flashers off, press the
switch twice.
(The emergency flashers may not turn on automatically depending on the
force of the impact and conditions of the collision.)

The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.



Vehicles with 7-inch display



Vehicles with 11.6-inch display

581

PRIUS_OM_OM47E09U_(U)

7

Wh
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a

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es

7-1. Essential information

If your vehicle has to be stopped in an

emergency

Steadily step on the brake pedal with both feet and firmly depress it.

Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.

Shift the shift position to N.



If the shift position is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.



If the shift position cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.

Stop the vehicle in a safe place by the road.

Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop the vehicle using the follow-
ing procedure:

1

2

3

4

3

Press and hold for 2 seconds or
more, or press briefly 3 times or
more

4

WARNING

■

If the hybrid system has to be turned off while driving

Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the hybrid
system.

5

582

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7-1. Essential information

If the vehicle is trapped in rising water

●

Remove the seat belt first.

●

If the door can be opened, open the door and exit the vehicle.

●

If the door can not be opened, open the window using the power
window switch and exit the vehicle through the window.

●

If the window can not be opened using the power window switch,
remain calm, wait until the water level inside the vehicle rises to the
point that the water pressure inside of the vehicle equals the water
pressure outside of the vehicle, and then open the door and exit the
vehicle.

In the event the vehicle is submerged in water, remain calm and
perform the following.

WARNING

■

Using an emergency hammer

*

1

for emergency escape

The rear side windows and rear window of this vehicle can be shattered by
an emergency hammer

*

1

used for emergency escape, however, since the

windshield and front side windows

*

2

are laminated glass they can not be

shattered by an emergency hammer

*

1

.

*

1

: Contact your Toyota dealer or aftermarket accessory manufacturer for fur-

ther information about an emergency hammer.

*

2

: Vehicles with laminated glass

■

Escaping the vehicle from the window

There are cases where escaping the vehicle from the window is not possi-
ble due to seating position, passenger body type, etc.
When using an emergency hammer, consider your seat location and the
size of the window opening to ensure that the opening is accessible and
large enough to escape.

583

7-1. Essential information

PRIUS_OM_OM47E09U_(U)

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■

How to distinguish laminated glass

When looking from the cross-sectional
view point, laminated glass is two sheets
of glass pasted together.

Laminated glass
Tempered glass

1

2

584

PRIUS_OM_OM47E09U_(U)

7-2. Steps to take in an emergency

If your vehicle needs to be towed

In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front wheels may be locked due
to the parking lock. Contact your Toyota dealer or commercial towing
service.

●

There is a malfunction in the shift control system. (



P. 249, 609)

●

There is a malfunction in the immobilizer system. (



P. 95)

●

There is a malfunction in the smart key system. (



P. 647)

●

The 12-volt battery is discharged. (



P. 650)

The following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer or commercial towing service before tow-
ing.

●

The hybrid system warning message is displayed and the vehicle
does not move.

●

The vehicle makes an abnormal sound.

If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.

Situations when it is not possible to be towed by another vehicle

Situations when it is necessary to contact dealers before towing

585

7-2. Steps to take in an emergency

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Towing with a wheel-lift type truck



From the front (2WD models)



From the front (AWD models)

Release the parking brake.

Use a towing dolly under the rear
wheels.



From the rear

Use a towing dolly under the front
wheels.

586

7-2. Steps to take in an emergency

PRIUS_OM_OM47E09U_(U)

When using a flatbed truck to transport the vehicle, use tire strapping
belts. Refer to the owner’s manual of the flatbed truck for the tire
strapping method.
In order to suppress vehicle movement during transportation, set the
parking brake and turn the power switch off.

If a tow truck is not available in an emergency, your vehicle may be
temporarily towed using cables or chains secured to the emergency
towing eyelets. This should only be attempted on hard surfaced roads
for short distances at under 18 mph (30 km/h).
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.

Using a flatbed truck

Emergency towing

587

7-2. Steps to take in an emergency

PRIUS_OM_OM47E09U_(U)

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To have your vehicle towed by another vehicle, the towing eyelet must
be installed to your vehicle. Install the towing eyelet using the follow-
ing procedure.

Take out the wheel nut wrench and towing eyelet. (



P. 613, 632)

Remove the eyelet cover using
a flathead screwdriver.

To protect the bodywork, place a
rag between the screwdriver and
the vehicle body as shown in the
illustration.

Insert the towing eyelet into the
hole and tighten partially by
hand.

Tighten down the towing eyelet
securely using a wheel nut
wrench or hard metal bar.

When tightening with a wheel nut
wrench or hard metal bar, make
sure not to damage the vehicle
body.

Securely attach cables or chains to the towing eyelet.

Take care not to damage the vehicle body.

Enter the vehicle being towed and start the hybrid system.

If the hybrid system does not start, turn the power switch to ON mode.
Turn off the Parking Support Brake function. (if equipped):



P. 375

Emergency towing procedure

1

2

3

4

5

6

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7-2. Steps to take in an emergency

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Shift the shift position to N

*

and release the parking brake.

*

: If the shift position cannot be changed or the current shift position

can not be confirmed, contact your Toyota dealer or commercial tow-
ing service before towing.

■

While towing

If the hybrid system is off, the power assist for the brakes and steering will not
function, making steering and braking more difficult.

■

Wheel nut wrench

Wheel nut wrench is installed in luggage compartment. (



P. 613, 632)

■

Towing eyelet installation hole on the rear of the vehicle

The hole is equipped for fastening the
vehicle while shipping. Your vehicle can-
not tow another vehicle.

7

589

7-2. Steps to take in an emergency

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WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When towing the vehicle



2WD models



AWD models

Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged or electricity gen-
erated by the operation of the motor may
cause a fire to occur depending on the
nature of the damage or malfunction.

Be sure to transport the vehicle with all
four wheels raised off the ground. If the
vehicle is towed with the tires contacting
the ground, the drivetrain or related parts
may be damaged, the vehicle may fly off
the truck, or electricity generated by the
operation of the motor may cause a fire
to occur depending on the nature of the
damage or malfunction.

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7-2. Steps to take in an emergency

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WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

While towing

●

When towing using cables or chains, avoid sudden starts, etc. which place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit peo-
ple, and cause serious damage.

●

Do not turn the power switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.

■

Installing towing eyelets to the vehicle

●

The towing eyelets are only for the vehicle equipped with them. Do not use
the towing eyelets for another vehicle, and do not use the towing eyelets
for this vehicle on another vehicle.

●

Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.

NOTICE

■

Towing with a sling-type truck

■

To prevent damage to the vehicle when towing using a wheel-lift type
truck

When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.

■

To prevent damage to the vehicle when towing with a sling-type truck

Do not tow with a sling-type truck, either from the front or rear.

■

To prevent damage to the vehicle during emergency towing

Do not secure cables or chains to the suspension components.

Do not tow with a sling-type truck to pre-
vent body damage.

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7-2. Steps to take in an emergency

If you think something is wrong

●

Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)

●

Flat-looking tires or uneven tire wear

●

High coolant temperature warning light flashes or comes on

●

Changes in exhaust sound

●

Excessive tire squeal when cornering

●

Strange noises related to the suspension system

●

Pinging or other noises related to the hybrid system

●

Engine missing, stumbling or running roughly

●

Appreciable loss of power

●

Vehicle pulls heavily to one side when braking

●

Vehicle pulls heavily to one side when driving on a level road

●

Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor

If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.

Visible symptoms

Audible symptoms

Operational symptoms