Dodge 2008 Ram Pickup 3500 - Manual (Page 122)

LIGHTS Interior Lights
Courtesy and dome lights are turned on when the front
doors are opened, when the dimmer control (rotating
wheel on the right side of the switch) is rotated to the
upward detent position, or if equipped, when the UN-
LOCK button is pressed on the key fob. When a door is
Headlight Switch Location Dimmer Control
122 UNDERSTANDING THE FEATURES OF YOUR VEHICLE