2004 Toyota Avalon Navigation Manual - Page 315

'04 AVALON U (L/O 0408) -Outside temperature display After resetting the calendar, push the "MODE" button until the display returns to normal calendar mode. -Cruise information display The outside temperature display indicates outside air temperatures. To set the unit, push the "MODE" button until the unit display appears and blinks. Then push the "RESET/ADJ" button to select "_C" or "_F". (At this time, cruise information and air conditioning displays also change.) After setting the unit, push the "MODE" button until the display returns to normal calendar mode. 192 2004 AVALON from Aug. '04 Prod. (OM41412U)