We have the same problem with our Edge, rolls backwards on an incline. Dealership did a re-flash but the problem remains. Increasing RPMs with foot on the gas rather than the brake will hold position.
The problem here is obvious from a safety perspective. Yes, we should place our right foot on the brake, but this is not always practical. While waiting for a light to change green, reducing brake pressure just a little bit will find you against someone's bumper before you realize you have moved. Rear obstacle detection system needs to beep while in drive to compensate for this obviously flawed design "feature" of this vehicle.
The assertion that Ford 'had to' comply with gas economy requirements by reducing the capacity of the torque converter at lower RPMs is an assertion of economy over safety. A really bad choice was made by engineering to this regard. I have no delusions that they did not know about it, but failed to inform sales of the 'feature'.
If sales knew about it, it certainly was never 'demonstrated' during our test drive. It needs to be disclosed to potential buyers.
Personally, I would have walked away from this vehicle as I have a medical problem that sometimes causes pain in my hip when I lift my leg from the accelerator to the brake. I naturally try avoid this movement whenever I can. This experience puts a really bad taste in my mouth about Ford engineering.
