Dodge 2013 Challenger - Owner Manual - Manual (Page 280)

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 Pre-
ferred 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 (left knob).
NOTE:
Please read the Automatic Temperature Control
Operation Chart that follows for details.
278 UNDERSTANDING YOUR INSTRUMENT PANEL