2013 Toyota Tundra Regular Cab Owners Manual - Page 266
2013 Toyota Tundra Regular Cab Manual
Page 266 highlights
3-1. Using the air conditioning system and defogger Front passenger side outlets Direct air flow to the left or right, up or down. Turn the knob to open or close the vent. Rear outlets (CrewMax models only) Direct air flow to the left or right, up or down. Turn the knob to open or close the vent. 304