Page 449 of 600
4497-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
Vehicles  without  a  smart key  system: Turn  the  power  switch  to  the
“LOCK” position.
Vehicles with a smart key syst em: Turn the power switch off. 
Open  the  glove  box.  Slide  off
the damper.
Push  in  each  side  of  the  glove
box  to  disconnect  the  upper
claws.
Pull  out  the  glove  box  and  dis-
connect the lower claws.
Air conditioning filter
The air conditioning filter must b e changed regularly to maintain
air conditioning efficiency.
Replacement method
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3
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        Page 450 of 600
4507-3. Do-it-yourself maintenance
PRIUS c_U
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  air  conditioning  fil-
ter  and  replace  it  with  a  new
one.
The “ UP” mark shown on the filter
should be pointing up.
■ Checking interval
Inspect  and  replace  the  air  conditioning  filter  according  to  th e  maintenance
schedule. In dusty areas or areas with heavy traffic flow, more  frequent clean-
ing or early replacement may  be required. (For scheduled maintenance infor-
mation,  please  refer  to  the  “Scheduled  Maintenance  Guide”  or  “O wner's
Manual Supplement”.)
■ If air flow from the ven ts decreases dramatically
The filter may be clogged. Check the filter and replace if nece ssary.
5
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2
6
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 da mage to the
system. 
     
        
        Page 451 of 600
4517-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
●Flathead screwdriver
● Small flathead screwdriver
● Lithium  battery  CR2016  (vehicles  without  a  smart  key  system),  o r
CR2032 (vehicles with a smart key system)
Remove the cover.
To  prevent  damage  to  the  key,
cover the tip of the screwdriver with
a rag.
To  prevent  the  buttons  from  being
disassembled,  face  the  button  sur-
face downward.
Remove the module.
Open  the  case  cover  using  a
coin  protected  with  tape  etc.
and  remove  the  depleted  bat-
tery  using  a  small  flathead
screwdriver.
Insert  a  new  battery  with  the  “+”
terminal facing up.
Wireless remote control/electronic key batter y
Replace the battery with a n ew one if it is depleted.
You will need the following items:
Replacing the battery (vehicles without a  smart key system)
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2
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        Page 452 of 600
4527-3. Do-it-yourself maintenance
PRIUS c_U
Take out the mechanical key.
Remove the cover.
To  prevent  damage  to  the  key,
cover the tip of the screwdriver with
a rag.
Remove  the  depleted  battery
using  a  small  flathead  screw-
driver.
When  removing  the  cover,  the
electronic  module  may  stick  to  the
cover  and  the  battery  may  not  be
visible.  In  this  case,  remove  the
electronic  module  in  order  to
remove the battery.
Insert  a  new  battery  with  the  “+”
terminal facing up.
Replacing the battery (vehicles with a smart key system)
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2
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        Page 453 of 600

4537-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
■Use a CR2016 (vehicles without  a smart key system) or CR2032 (v ehicles
with a smart key system) lithium battery
● Batteries can be purchased at your Toyota dealer, local electri cal appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The  smart  key  system  (if  equipped)  and  wireless  remote  control  will  not
function properly.
● The operational range will be reduced.
WARNING
■Removed battery a nd other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep  away  from  children.  Failure  to  do  so  could  result  in  death  or  serious
injury.
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 cont rol.
● Do not bend either of the battery terminals. 
     
        
        Page 454 of 600
4547-3. Do-it-yourself maintenance
PRIUS c_U
Vehicles  without  a  smart key  system: Turn  the  power  switch  to  the
“LOCK” poison.
Vehicles with a smart key syst em: Turn the power switch off.
Engine compartment
Push the tab in and lift the cover off.
Under the instrument panel
Remove the cover.
Checking and replacing fuses
If  any  of  the  electrical  components  do  not  operate,  a  fuse  may
have blown. If this happens, che ck and replace the fuses as nec-
essary.
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2
Type A fuse boxType B fuse box
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        Page 455 of 600
4557-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
Remove  the  fuse  with  the  pull-
out tool.
Only  type  A  fuse  can  be  removed
using the pullout tool.
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        Page 456 of 600
4567-3. Do-it-yourself maintenance
PRIUS c_U
Check if the fuse is blown.4
Ty p e  AType B
Ty p e   CType D
Ty p e   E
Normal fuse
Blown fuse
Type A, B, C and D:
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.
Type E:
Contact your Toyota dealer.
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