2010 Toyota Highlander Owners Manual - Page 516
2010 Toyota Highlander Manual
Page 516 highlights
5-1. Essential information Emergency flashers Use the emergency flashers if the vehicle malfunctions or is involved in an accident. Vehicles without navigation system Press the switch to flash all the turn signal lights. To turn them off, press the switch once again. Vehicles with navigation system Press the switch to flash all the turn signal lights. To turn them off, press the switch once again. NOTICE