The entire electrical system failed in my truck while DRIVING IN A SNOWSTORM. New engine light saying the PCM detected the power relay de-energized earlier than expected. The most alarming thing is that this truck runs like there is nothing wrong with it. No warnings or alerts. Then all of a sudden it dies. Total loss of power in the vehicle. Ive tried to have the dealership replace these issues but they have either canceled on me or have told me that the part isnt in. Meanwhile, my truck is not safe to drive. Ive read numerous reports of this same thing happening to other owners of this truck, with most of the consensus saying that the M factory wiring harness for the battery is bad.