I finally got around to taking my PF in for the recall. I asked them to take a look at the trans because occasionally the truck would downshift when going down hill. Then when disabling OD, it would up-shift.
They call me back and tell me that the trans cooler is part of the main radiator and that there was coolant in my trans and trans fluid in my coolant.
So they're flushing the engine, replacing the radiator and the trans.
Good thing they caught it, warranty runs out next month. Truck had ~ 27K miles on it.