Chrysler 2010 300 - Owner Manual - Manual (Page 299)

Attempting to use the recirculation while in these
modes will cause the indicator in the control button to
blink and then turn off.
Manual Operation
This system offers a full complement of manual override
features, which consist of blower preferred automatic,
mode preferred automatic, or blower and mode preferred
automatic. This means the operator can override the
blower, the mode, or both. There is a manual blower
range for times when the AUTO setting is not desired.
The blower can be set to any fixed blower speed by
rotating the blower control knob (on the left).
NOTE: Please read the automatic temperature control
operation chart that follows for details.
298 UNDERSTANDING YOUR INSTRUMENT PANEL