2009 Toyota Land Cruiser Owners Manual - Page 433

4-3. Do-it-yourself maintenance n Checking interval Inspect, clean and replace the air conditioning filter according to the maintenance schedule. In dusty areas or areas with heavy traffic flow, more frequent cleaning or early replacement may be required. (For scheduled maintenance information, read the "Scheduled Maintenance Guide", "Owner's Manual Supplement".) n If air flow from the vents decreases dramatically The filter may be clogged. Check the filter and replace if necessary. NOTICE n To prevent damage to the system l When using the air conditioning system, make sure that a filter is always installed. l When cleaning the filter, do not clean the filter with water. 422