Chrysler Pacifica Owner's Manual page 263

UNDERSTANDING YOUR INSTRUMENT PANEL 263
Bi-Level Mode Air comes from both the instrument panel outlets and
floor outlets. A slight amount of air is also directed
through the defrost and side window demister outlets.
In many temperature positions, the bi-level
NOTE:
mode is designed to provide cooler air out of the panel
outlets and warmer air from the floor outlets.
4
Bi-Level Outlets