I didn't realize that battery degradation was typical with hybrid batteries and thought my battery was failing. My car is a 2017 Ford Fusion and has 90,000 miles. Until now all I've had to do with this car is regular maintenance - better than any other car I've owned. But my hybrid performance had shrunk from 22 miles on a fully charged battery to just 14 miles. So, I brought my car into the dealer this month (August 2023) hoping a replacement battery would be covered by the warranty still in effect.
The dealer's specialist determined the degradation was normal and not covered by warranty. They recommended I switch EV+ off to preserve battery life moving forward. Although diligent about everything else, I hadn't exactly been diligent about tire inflation, and they recommended I keep the tires inflated by checking and topping them off twice a month.
They also suggested a system update and reset of the battery data. I went ahead and paid them a whopping $550 for this work, and it improved the performance to 19 miles on a charge. Worth every penny!
This renewed performance, my conversations with the dealer's technician, and seeing the posts here have encouraged me that I've got a lot of miles left with this car.