Air Outlet Control

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

While air outlet is in automatic control, A/C auto amp. selects the mode door (front) position depending on a target air mix door (front) angle and outlet air temperature calculated from sunload.

Courtesy of NISSAN NORTH AMERICA, INC.
If ambient temperature is excessively low, D/F is selected to prevent windshield fogging when air outlet is set to FOOT.