2008 Lexus LS 460 Owners Manual - Page 649

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 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. 586