Jeep 2005 Wrangler - Manual (Page 172)

Temperature Control
The temperature control is the center knob located on the
climate controls. It controls the temperature of the air
delivered to the passenger compartment.
You can choose your degree of comfort by rotating the
knob. The coldest setting is to the extreme left (blue region)
and the warmest setting is to the extreme right (red region).
Mode Selection
The mode selector is the right knob located on the climate
controls. It can be set in any of the following positions:
Off
Turning the rotary knob to this position shuts off the
blower motor and outside air will not come through
any outlet.
Temperature Control Knob
Mode Selection Knob
172 UNDERSTANDING YOUR INSTRUMENT PANEL