Well, after checking the fluid, which is extremely dirty, not a shade of red in it, there is still plenty of fluid. Now get this, the truck went into gear and drove forward and reverse for a few feet. I did not press my luck. Still no alerts or notifications pointing to any specific problem. Stucknat square one which will most likely lead to a rebuilt transmission because new ones are expensive. But, if anyone has anymore idea as what the actual problem is, im all ears! Thanks for all who read and offer a suggestion.