One problem related to hazard flashing warning light unit has been reported for the 2005 Dodge Ram 1500. The most recently reported issues are listed below.
Turn signals work sporadically. This is a daily issue. Signal left and the right signal comes on. Signal right and maybe the left turn signal comes on, or maybe not at all. Sometimes turn signals randomly switch back and forth between left and right on their own. Many times turn signals don't work at all. Once the wipers did not work. Hazard lights sometimes do not work. I have had the multi-function switch replaced twice under warranty and twice again since. Still have the issue. I believe this is a safety concern as the turn signals are telegraphing the wrong information to other drivers. Also possibly related the oil pressure gauge in my instrument panel will not work 3-4 times a year. Next time I start the truck it works fine. All this happens when the vehicle is in motion, and when stationary, forwards, backwards, straight, or turning.