[tnmats]

Correct if I'm wrong but hasn't Ford had this "slipping out of park" issue numerous times over the decades?

What the world makes their transmissions so prone to that particular failure? I swear I remember them having the same issue in the 1970s and again every 10-15 yrs.

 

[tnmats]

Now then you mention it, isn'it one of the automatic transmissions then Ford worked with GM in a joint-venture?

The presently used FWD 8 speed (Ford) / 9 speed (GM) was a joint design as was the 10 speed RWD transmission. I think there are a decent number of differences still between the implementation of the design plus each company produces it's own version of the common design. In other words, they're not built in 1 factory supplying both companies nor are the identically built.