Toyota RAV4 2001 Owner's Manual page 398

4-3. Do-it-yourself maintenance
■
Replacement method
■
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, please 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 it if necessary.
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 damage to the
system.
396
Remove the air conditioning
filter and replace it with a new
one.
The "UP↑" marks shown on the
filter should be pointing up.