2013 Toyota Tundra CrewMax Owners Manual - Page 272

3-1. Using the air conditioning system and defogger When the dial is set to , air flows to the feet and the windshield defogger operates. *2 *1 *1 The air intake selector is automatically set to outside air mode. To return the recirculated air mode, press . *1: Double Cab and CrewMax models only *2: CrewMax models only When the dial is set to , air flows to the windshield and side windows. The air intake selector is automatically set to outside air mode. In this position, the air intake selector cannot be changed to the recirculated air mode, press .