NHTSA Complaint #11717272 — 2016 FORD F-150

Over the past few years, I have experienced sporadic issues with my transmission. I am aware of an investigation into 2015-2017 F-150's with 6-speed 6R80 automatic transmissions which is what I have. According to articles I have seen, there have been reports of sudden down-shifts at highway speed from 6th to 2nd or 1st gear. While I have not experienced anything that drastic yet, I am concerned that it's just a matter of time. I have experienced slipping out of 6th gear or what I would describe as the transmission "hunting" to find a shift point between 4th and 6th. I first became aware of this while trailering an RV on the highway using cruise control in the summer of 2023. Periodically, I would notice a "lurching" sensation as the vehicle seemed to have difficulty maintaining 6th gear. As time has gone on, I've had this happen even when not trailering but when going up hills at times (transmission under load). Additionally, I have experienced sudden loss of power under acceleration like entering an on-ramp to a highway. Twice (at least) I have had this happen, the check engine light will begin flashing and I lose the ability to accelerate. After stopping, shutting off the vehicle and then starting again, the CEL turns off and I can resume driving. I have brought this issue up with my local dealer twice, but they have not been able to diagnose anything because of how sporadic the problem is.Their advice was to simply wait until the problem got worse and more predictable. Since my F-150 is not a daily driver for me, it has largely just sat in my garage since 2023 and rarely used. But on the handful of occasions I have driven it since this issue first appeared, I am constantly concerned I will run into a major problem.