2004 Toyota Sequoia Owners Manual - Page 127
2004 Toyota Sequoia Manual
Page 127 highlights
04_SEQUOIA_U (L/O 0309) If the back window is opened while the defogger is working, the defogger will automatically turn off. Even if the back window is fully closed after that, the defogger will not automatically turn on. 127 2004 SEQUOIA from Sep. '03 Prod. (OM34423U)