One problem related to back up lights has been reported for the 2006 Dodge Ram 3500. The most recently reported issues are listed below.
Backup light on one side went out. Tried replacing the bulb, but it turned out to be the whole mechanism that holds all three rear lights. Seems like a defect to me, my truck only has 40k on it. Wanted to see if anyone else had same problem. Please report on here to make it a recall and make the dealer pay for their faulty equipment.