Dodge 2008 DH Ram Owner's Manual page 260

258 UNDERSTANDING YOUR INSTRUMENT PANEL
Blower Control
The rotary knob on the left of the
control panel is the blower control.
Turn the knob clockwise to one of the
four positions to obtain the blower
speed you desire. To turn the blower
off, turn the knob to the far left posi-
tion.
Dual Zone Temperature Control
Dual Zone Temperature Control
Use this control to regulate the temperature of the air
inside the passenger compartment. This is accomplished
by having separate temperature control slides for both
the driver and front passenger. The blue area of the scale
indicates cooler temperatures while the red area indicates
warmer temperatures.