One problem related to engine shut off without warning has been reported for the 2010 Dodge Ram 2500. The most recently reported issues are listed below.
Was driving under cruise control at 75mph on i95 north in the middle lane, and noticed my truck started slowing down and engine had stalled. Power steering and power brakes went out and there was traffic coming up behind me in all three lanes, so I had difficulty steering the truck off to the side of the road. All electronics remained on, key was still in on position, and there were no status indicators anywhere on the instrument panel or evic to indicate there was a problem. The fuel gauge was still over half full. Once the truck came to a stop, I put it back in park and turned the key off. I was then able to start the truck back up and continue driving the rest of the way home without another incident. I took the truck into the dealer the next day and they were unable to find any fault codes from the ecu. Because there were no fault codes found, the dealer was unable or unwilling to perform any repairs to prevent this dangerous condition from re-occurring. So, I've done some research of my own on this condition and found that Chrysler has had identical problems in other vehicle models for which they issued a recall (NHTSA campaign id number: 11v139000). It seems this problem is caused by a loss of communication between the key fob and the wireless ignition node (win). This wireless connection is required to start the vehicle, but for a glitch in the wireless connection to result in a complete engine shutdown while traveling at high speed is a huge safety issue. I am now afraid to drive my truck on the highway unless I stay in the right hand lane.