2008 TOYOTA AVALON Owners Manual

337
4-3. Do-it-yourself maintenance
4
Maintenance and care
AVALON_U_(L/O_0802)
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
■ Removal method
Set the air conditioning system to recirculated mode.
The air conditioning filter case cannot be removed with the sys-
tem in the outside air mode.
Turn the “ENGINE START STOP” switch or the engine
switch to OFF mode.
Open the glove box. Remove
the screw with a Phillips-head
screwdriver and slide off the
damper.
Push in each side of the glove
box to disconnect the claws.
STEP1
STEP2
STEP3
STEP4

338 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Remove the filter cover while
pushing in both ends of the
cover.
Pull the filter out of the filter
outlet.
■ 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. (5cm)
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.
STEP5
STEP6

4
Maintenance and care
339
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
■
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, 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
■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 with water.
■ Replacement method
Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “UP” marks shown on
the filter and the filter case
should be pointing up.

340
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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 (vehicles with smart key system),
CR2016 (vehicles withou t smart key system)
■ Replacing the battery (vehicles with smart key system)
Take out the mechanical key.
Remove the cover.
STEP1
STEP2

4
Maintenance and care
341
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Remove the depleted battery.
Insert a new battery with the
“+” terminal facing up.
■
Replacing the battery (vehicles without smart key system)
Remove the cover.
Remove the module.
STEP3
STEP1
STEP2

342 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
■If the 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 (vehicles with smar t key system), or CR2016 (vehicles
without smart key system ) 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 Toy-
ota 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.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the
“+” terminal facing up.
STEP3

4
Maintenance and care
343
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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 remote control.
● Do not bend the battery terminals.

344
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
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 “ENGINE START STOP” switch or the engine
switch to OFF mode.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel Remove the lid.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 346) for details about which fuse to check.STEP1
STEP2
STEP3