Followed these instructions for my 2010 Fusion Hybrid at 188,000 miles in late 2019 and the hybrid function was immediately restored to what I was hoping for.
Now, in March, 2019, at 192,000 miles the car is still doing great and when the outside temps are around 70 Fahrenheit I can achieve 40mpg around town with ease if I avoid being a leadfoot.
At freezing temps, urban MPG typically fades to mid to low 30s. Haven't experienced 90+ degrees since the fix, yet.
I set the battery age to 1 yr.
This fix eliminated the acceleration lag that I was experiencing from a stop that had begun to occur in 2019 and has restored the excellent low speed acceleration from a stop that I had been used to until 2019.
This car continues to perform in a manner that makes me want to keep it.