The 2015 Ford Focus uses a DPS6 PowerShift dual-clutch automatic transmission, which has been widely reported for shuddering, jerking, and hesitation — especially from a stop. Ford extended warranties and issued TSBs addressing clutch and software issues. Replacement or remanufactured units should include updated software calibration to avoid repeat failures. Many owners opt for a ful... https://turboautoparts.com/used-transmission/ford/focus/2015