- OK, you are doing some serious mileage, so this isn't an issue being caused by "Too much slow speed operation" or modifications.
Something is wrong and your dealer needs to diagnose, as this has happened to you on more than one occasion.
Although inconvenient, I would keep bringing back every time it happens and start mentioning your state's Lemon Law...
2018 Ford 150 PS Diesel Platinum FX4 in Ingot Silver w/BuiltRight Rear Seat Release, Gatorback F150 Splash Guards, Lloyd Custom F150 Luxe Carpet Mats & Titan 40 gal replacement fuel tank
FORScan mods: Auto Start/Stop Disabled, Bambi mode, Digital Temps Above Gauges, DPF Full %, OCR (Operator Commanded Regen) and Heated & Cooled seats on Home screen