One problem related to wiring has been reported for the 2013 Dodge Ram 1500. The most recently reported issues are listed below.
On about 3jul13, my wife and I found out that the running lights for our travel trailer weren't working. All other lights were working, so we continued driving during daylight hours. On returning home, I found out that the trailer lights worked when hooked up to a battery, but there was no power going to the appropriate prong in the wiring harness even though the running lights on the truck functioned. I brought the truck back to the dealer where a fuse had to be replaced in the truck. The service manager then told me he had the same problem with his truck - the trailer was plugged in when the truck was started - the lights had been left on "auto" or the radio was left on. This presents a severe safety hazard if I'm pulling a trailer at night and forget to turn my lights off auto or leave my radio on prior to starting the vehicle. I only do light checks on my trailer once a day, not every time I stop for a break. The trailer has not been a cause of shorts on previous vehicles.