2003 Toyota Avalon Owners Manual - Page 171
2003 Toyota Avalon Manual
Page 171 highlights
'03 AVALON U (L/O 0206) "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. 2003 AVALON (OM41401U) 171