My 2018 Ford Focus (DPS6 dual-clutch automatic transmission) suffers from severe hesitation and shuddering when accelerating from a stop, especially under 10 mph. More concerning, the car has stalled multiple times while merging into traffic and during right turns at intersections. We can no longer safely take free right turns due to the risk of the car dying mid-merge. This poses an immediate safety hazard and mirrors known failure patterns in earlier Focus and Fiesta models. Ford previously extended warranty coverage for the same TCM defect in 2011a“2016 models, but my 2018 a” which uses the same DPS6 system a” has been excluded without explanation. The dealership acknowledged the TCM failure but refused to cover the repair. Instead, they charged me $300 to tell me they would not perform the service Ford originally recommended (a fuel injector purge) and that I now need to replace the TCM entirely. This is a known, documented issue that Ford has admitted to in other years. My car has lost power four times in the last three months, and all signs point to this being the early stages of the same defect. Allowing this failure to persist without coverage or recall is negligent and dangerous. Ford is knowingly placing families like mine at risk by refusing to act. I request an NHTSA investigation into the 2018 Ford Focus DPS6 models, which are experiencing the same failures that have already led to recalls, lawsuits, and warranty extensions in earlier years.