2010 Toyota Camry Owners Manual - Page 213
2010 Toyota Camry Manual
Page 213 highlights
3-1. Using the air conditioning system and defogger Rear window and outside rear view mirror defoggers Clear the rear window using the defogger. On/off The defoggers will automatically turn off the operation time. The operation time is between 15 minutes and 1 hour depending on the ambient temperature and vehicle speed. 3