2004 Toyota Avalon Navigation Manual - Page 297

'04 AVALON U (L/O 0408) "A/C" button To turn on the air conditioning, press the "A/C" button. The "A/C" button indicator will come on. To turn the air conditioning off, press the button again. If the "A/C" button indicator flashes, there is a problem in the air conditioning system and the air conditioning automatically shuts off. If this happens, take your vehicle to your Toyota dealer for service. 174 2004 AVALON from Aug. '04 Prod. (OM41412U)