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Toyota Prius (2023 year). Manual in english - page 33

547

6-3. Do-it-yourself maintenance

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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.

548

6-3. Do-it-yourself maintenance

■

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 “Toyota Service Booklet” or “Toyota Warranty
Booklet”.

■

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 any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.

■

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. 545)

●

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 any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.

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. 87)

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6-3. Do-it-yourself maintenance

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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 any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.

●

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.

550

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

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6-3. Do-it-yourself maintenance

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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.

Rear window wiper

552

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.

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6-3. Do-it-yourself maintenance

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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 any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.

■

Front wiper blade cap

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

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.

554

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

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6-3. Do-it-yourself maintenance

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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 any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer, 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 entry & start system and wireless remote control will not function
properly.

●

The operational range will be reduced.

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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 any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.

●

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.

■

Certification for the smart entry & start system

CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS

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.

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6-3. Do-it-yourself maintenance

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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 (left-hand drive vehicles)

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.

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6-3. Do-it-yourself maintenance



Left side instrument panel (right-hand drive vehicles)

Push the tab in and remove
the cover.
Unplug the connector while
pressing the lock release.
Remove the lid.

Make sure to press the claw
during removal or installation.

Remove the fuse.

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

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6-3. Do-it-yourself maintenance

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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.

1
2



Type A



Type B



Type C

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6-3. Do-it-yourself maintenance

■

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. 561)

●

If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.

■

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, non-genuine 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 any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.

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6-3. Do-it-yourself maintenance

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Light bulbs

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



P. 667)

Back-up light

Rear turn signal light

: The back-up light is installed only on the front passenger side.

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 any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

Preparing for light bulb replacement

Bulb locations

1
2

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6-3. Do-it-yourself maintenance

■

Rear turn signal lights and back-up light

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.

Replacing light bulbs

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