Page 418 of 600
4187-3. Do-it-yourself maintenance
PRIUS c_U
WARNING
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
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
1
2
3
4
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
1
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 499 of 600

4998-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
Carrying out the corresponding action turns the message off.
After taking the specified steps to correct the suspected probl em,
check that the warning m essage and light go off.
Other displayed message
Displayed messageDetails/Actions
Maintenance of the hybrid battery (traction battery)
cooling component is required
The filter may be clogged, the air intake vent
may be blocked or there may be a gap in the
duct.
If the air intake vent is dirty, refer to P. 404
for cleaning the air intake vent.
If the message is being displayed and the air
intake vent is not dirty, have the vehicle
inspected at your Toyota dealer.
Have the malfunction repaired immediately. (vehicles with a
smart key system)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
Once The electronic key is not
detected when an attempt is
made to start the hybrid sys-
tem.
Start the hybrid system
with the electronic key
present.
(Flashes)
Page 587 of 600

587
PRIUS c_U
Alphabetical index
Alphabetical index
A/C ............................................ 376
ABS ........................................... 265
Acoustic Vehicle Alerting System ..................................... 77
Air conditioning filter .............. 449
Air conditioning system
Air conditioning filter ............. 449
Automatic air conditioning system ......... ....................... 376
Airbags Airbag operating
conditions ............................. 47
Airbag preca utions for
your child .............................. 42
Airbag warning light .............. 481
Curtain shield airbag operating conditions ............. 47
Curtain shield airbag precautions ........................... 45
Front passenger occupant
classification syst em............. 52
General airbag precautions ........................... 42
Indicators ................................ 52
Knee airbag precautions ......... 42
Locations of airbags................ 39
Modification and disposal of airbags ............... 46
Proper driving posture ........................... 28, 42
Seat cushion airbag precautions ........................... 42
Side airbag operating
conditions ............................. 47
Side airbag precautions .......... 42
SRS airbags............................ 39 Antenna .................................... 299
Anti-lock brake system ........... 265
Assist grips .............................. 396
Audio input .............................. 284
Audio system
*
Antenna ................................ 366
Audio input............................ 284
AUX port ............................... 284
CD player.............................. 300
Cord hook ............................. 284
iPod ...................................... 306
MP3/WMA disc ..................... 300
Optimal use .......................... 297
Portable music
player ................................. 284
Radio .................................... 298
Steering wheel audio switch ................................. 283
Type...................................... 280
USB memory ........................ 311
USB port ............................... 284
Automatic air conditioning system
Air conditioning filter ............. 449
Automatic air conditioning system .......... ...................... 376
Automatic High Beam ............. 246
AUX port ................................... 284
Auxiliary boxes ........................ 390
A
*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.