Of course they can fix it, just have to find a competent dealer. Many dealers screwed up this software update by not following Ford instructions to the letter. The first step in the Service Bulletin states: Plug a charger to the 12V battery. Well guess what? Some did not, (could not?) read the instructions and went ahead with the software update without plugging in a charger. While the software update was in progress some module in the car got to sleep which screwed up the whole process; just like disconnecting your computer while a software update is in process.
The mechanics for those cars need more IT skills than wrench and hammer.
In my case, since the car is working fine, I decided to wait to have this bulletin done, if ever..
picture attached make me rofl
When my preferred Chevy dealer has been introduced to my son's 2015 Volt about its due 5 years / 240,000 kms HV battery coolant change and other oil & filter maintenance, I was informed from VIN, there was one software update recall due. I went online to learn about #N172130462 and read that software update (HPMC2) and this required the HV battery state of charge being above 62%. Since his R-V was early Friday and Volt onboard charger being only 3.3kW, if he came in with a depleted battery, update won't be possible before noon (end of technician shift). So, I told my son to keep his Volt battery state of charge full with the Hold mode and keep it for his return from the dealer.
OTA Over the Air Update was designed from the ground up in all Tesla, GM had some entertainment OTA capability with my former 2019 Volt and will spread further & deeplly in a near future, imho it would become a huge factor for all mainstream brand of EVs, eventually...