NHTSA Complaint #11686709 — 2017 FORD MUSTANG

I am bringing in my 2017 Ford Mustang EcoBoost Premium due to a serious transmission problem. The vehicle’s 10R60 / 10R80 automatic transmission becomes stuck in Drive/Sport mode and fails to shift properly, which is a significant safety concern since it prevents me from reliably selecting Park or Neutral when needed. I am aware of multiple Ford Technical Service Bulletins (TSBs) and updates related to this transmission family, including but not limited to: - TSB MC-10236680 (May 30, 2023) – 10R60 / 10R80 Automatic Transmission – Harsh/Delayed Engagement And/Or Harsh/Delayed Shift - Identifies PCM/TCM software issues, solenoid strategy concerns, sticking valves in the main control valve body, and axial movement of the CDF clutch cylinder sleeve. - Calls for PCM/TCM reprogramming, adaptive learning drive cycles, and in some cases valve body or clutch component replacement. - TSB 23-2250 (2023) – 10R60/10R80 Harsh/Delayed Shifts / Engagement - Describes corrective procedures including Transmission Accelerated Main Control Break-In routine, adaptive learning cycles, and parts replacement if necessary. - TSB 18-2079 (2018) – 10R80 Harsh/Delayed Shifts, DTC P0711 - Calls for PCM reprogramming to correct transmission shift concerns. Given these official Ford bulletins acknowledge issues with this transmission design, I am requesting that the dealership: 1. Check for and apply all available PCM/TCM software updates as outlined in the above TSBs. 2. Perform adaptive learning drive cycles or Transmission Accelerated Main Control Break-In procedures where applicable. 3. Inspect for valve body or CDF clutch cylinder defects if symptoms persist. 4. Confirm whether this VIN is covered for these repairs under TSB or goodwill consideration, given the clear overlap between my symptoms and Ford’s published bulletins. Because this is a safety issue (vehicle stuck in gear, inability to properly engage Park/Neutral)