Toyota 2008 FJ Cruiser Owner's Manual page 210

If the ambient temperature drops while using the recirculated
n
air mode
The air intake mode automatically changes from recirculated air
mode to outside air mode after a few minutes.
To cancel this function:
Press and hold
To reactivate this function:
Turn the engine switch to the LOCK or ACC position.
Adjusting the position of the air outlets
Center outlets
3-1. Using the air conditioning system and defogger
for longer than 2 seconds.
Direct air flow to the left or right,
up or down.
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