Car Stall problems of the 2015 Lincoln MKX

Car stalls and looses power in 5-10 seconds while driving. Once stopped, the car will restart and drive. The problem indicator "yellow wrench" tells the dealership nothing relating to the problem. This problem is life threatening because it often happens while traveling at high rates of speed (interstates) in environments with lots of traffic. Since the car begins immediate deceleration, getting to safety without getting into an accident in these circumstances, is frightening at best. On wed, 4/17/19, I was traveling on I-40, 5 lanes of traffic at 5:05 p. M. (I was in the leftmost lane) and my car stalled. By the time I got to the 2nd lane from the shoulder, I had almost been hit by a speeding car and an 18-wheeler. I was not able to get any momentum to get off the road quickly because the car had no power. This is a life threatening problem!!! I found many reports of the same thing occurring in Lincoln Mkx's (predominantly 2016's) that relate to a defective electronic throttle body, need for updated software, and/or the purge body. Lincoln indicates they cannot/will not fix this issue because they can't get a maintenance code to confirm the diagnosis. This situation could easily cost lives unnecessarily!! my reports of this issue are not being taken seriously (dealership & Lincoln Ford motor company). Since there is no recall associated to my VIN, they attest there is no issue unless I can provide it. I can't prove it because I never know when it will happen. They have kept my car for a week and drive but couldn't replicate. There needs to something much more aggressive that is mandated to be done before lives are lost. It is my hope you will be able to assist. Thank you.