NHTSA Complaint #11626401 — 2018 FORD FUSION

While waiting at a red traffic light in drive and on a slight incline, engine shut off by itself and car started rolling backward with my foot on the brake pedal. The pedal felt harder than normal to push but didn't stop the car. A car stopped behind me was put at risk of impact with the rear of my vehicle. I could see I was getting closer and closer to hitting the other car. As this was happening, i pushed the start button and managed to restart the engine and put it in drive to pull away just before impact. Problem hasn't been reproduced by anyone. Vehicle or components haven't been inspected by anyone. No warning light lamps or other symptoms of the problem prior or during remaining drive home. I don't know if this is related but the car does have a random no start symptom due to a battery discharge condition while parked overnight. This happens very rarely and is not reproducible when the battery is charged. Ford has a TSB ref.17-2192 on this failure that is applicable to my VIN but they will not cover it since my car is out of warranty (Time and 73K miles). The dealer further stated that there is no guarantee that this re-programming of the PCM will fix the problem. The Ford dealer gave me an estimate of $214 for the re-programming of the PCM and it does not include a new battery if it needs it. I have an appointment to get it done on 11/22/24 but I'm reluctant to pay for something that may not fix the parasitic PCM draw on the battery. Any advice would be appreciated. Thank you.