2009 Lexus LS 460 Owners Manual - Page 652

4-3. Do-it-yourself maintenance n Changing interval for the front air conditioning filter Inspect and replace the air conditioning filter when a message is appeared on the multi-information display. In dusty areas or areas with heavy traffic flow, early replacement may be required. n If air flow from the vents decreases dramatically The filter may be clogged. Check the filter and replace if necessary. n After changing the air conditioning filter The air conditioning filter maintenance data should be reset. Perform the following procedures: STEP 1 Turn the "ENGINE START STOP" switch to IGNITION ON mode. STEP 2 Press and hold (on the air conditioning panel) for 4 seconds or more. A buzzer will sound to indicate that the maintenance data has been successfully reset. n Rear air conditioning filter (if equipped) If it is necessary to clean or replace the filter, contact your Lexus dealer. n Climate control seat filter 4 Maintenance and care On vehicles with climate control seats, filters are installed in the seats. When it is necessary to clean or replace the filters, contact your Lexus dealer. NOTICE n 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. 581