I was driving today and had an unexpected shutoff. Was driving about 35-40ish and accelerated into overdrive. (Was probably in overdrive for approx 5sec. give or take) I then had to take my foot off the gas. Upon doing so, and while slowing down, my steering locked up and I realized my A/T oil temp and also my battery light came on, and that my truck had completely shut off while rolling. Shifted into neutral and started it back up no prob. Any ideas as to what the cause of the shutoff may have been? Thanks for the help!