Chrysler 2006 Pacifica Owner's Manual page 247

UNDERSTANDING YOUR INSTRUMENT PANEL 247
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.
NOTE: In many temperature positions, the bi-level
mode is designed to provide cooler air out of the panel
outlets and warmer air from the floor outlets.
4
Bi-Level Outlets