2010 Toyota Tundra CrewMax Owners Manual - Page 1049

3-1. Using the air conditioning system and defogger Back window, outside rear view mirror defoggers and front windshield wiper de-icer (if equipped on CrewMax models) Clear the back window using the defogger. Vehicles with an automatic air conditioning system On/off Press the button to turn on the back window defogger. The indicator will come on. The defoggers will automatically turn off after about 15 minutes. Pressing the button again also turns the defogger off. 3 Interior and exterior features 307