2010 TOYOTA PRIUS Owners Manual

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4-3. Do-it-yourself maintenance
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Maintenance and care
PRIUS_U (OM47668U) U.S.A.
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
■ Removal method
Turn the “POWER” switch OFF. 
Vehicles with Solar Ventilation System: Turn the Solar Ven-
tilation System off and make sure not to operate the
Remote Air Conditioning System.
Open the glove box. Slide off
the damper.
Push each side of the glove
box to release the pins. Then
disconnect the claws at the
bottom and remove the glove
box.
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STEP2
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STEP3

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Remove the filter cover.
Remove the filter.
■ Cleaning method
If the filter is dirty, clean by
blowing compressed air
through the filter from the
downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar). 
If it is not available, have the
filter cleaned by your Toyota
dealer.
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STEP4
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STEP5

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■
Checking interval
Inspect, clean and replace the air conditioning filter according to the mainte-
nance schedule. In dusty areas or areas with heavy traffic flow, early
replacement may be required. (For scheduled maintenance information,
refer to the “Owner’s Manual Supplement/Scheduled Maintenance Guide”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■To prevent damage to the system
● When using the air conditioning system, make sure that a filter is always
installed.
● When cleaning the filter, do not clean the filter with water.
■ Replacement method
Replace the air conditioning
filter with a new one.
The “UP” marks shown on
the filter should be pointing up.
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Electronic key batter y
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with rag)
● Small Phillips-hea d screwdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
STEP1
STEP2
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Maintenance and care
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■
If the electronic key battery is discharged
The following symptoms may occur.
● The smart key system and wireless remote control will not function prop-
erly.
● The operational range is reduced.
■ Use a CR1632 lithium battery
● Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
● Replace only with the same or equivalent type recommended by a
Toyota dealer.
● Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children. 
These parts are small and if swallowed by a child they can cause choking.
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 components inside the electronic key.
● Do not bend the battery terminals.

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Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch OFF. 
Vehicles with Solar Ventilation System: Turn the Solar Ven-
tilation System off and make sure not to operate the
Remote Air Conditioning System.
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.
Left side instrument panel Remove the lid.STEP1
STEP2
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Maintenance and care
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After a system failure, see “Fuse layout and amperage rat-
ings” (
P. 465) for details about which fuse to check.
Remove the fuse with the pull-
out tool.STEP3
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Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e BNormal fuse
Blown fuse
Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.
Ty p e CNormal fuse
Blown fuse
Contact your Toyota dealer.
STEP5
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