I understand EV Fan rationale. But it is not common sense that if you don't know the reason for the fire for older 17-19 that you assume that the defect is not in the 20-22 vehicles and continue to sell them. All the drive train and electrical components are the same or very similar and the big difference is just where the battery is made and a slightly large battery capacity. IMO it was just an economic and face-saving rationale that GM guessed that the 20-22 did not have the same defect. Auto companies are very engineer and financially driven organizations so their rationale is to always want specific proof before a recall with a bias toward thinking this problem cannot be in the other factory. This is just an idiotic approach to solving the problems. EVs are a whole new breed of vehicles and they are novices on how to approach defects.I would think the potential to flag a bad battery before it goes up in flames is also a reason to get the update. The last software fix flagged several vehicles that ended up getting new modules or batteries, so there is no reason to think this one will not do the same.
"This software also contains new diagnostics designed to detect specific abnormalities that might indicate a rare battery issue in your vehicle."
We also don't know the real investigation of the Korean battery plant and did this same investigation happen in the Michigan plants. Did LG cover up the problem in Michigan? Why didn't GM do a temporary stop sale when the fires started in January 2021 and investigate the Michigan plants more thoroughly? No they assumed a lot of wrong stuff and continued to sell, sell, sell and save face. Many of the newer 2021-22 vehicles had low mileage and many people did not charge to 100% on a regular basis so fires in these model years would be lower. And now that owners are not charging to 100% and running below 70 miles the fires stopped.
Raised and living in the Detroit area with a brother that is an engineer for GM I want GM and Ford to be successful in their EVs. And I have purchased many many new GM vehicles as has my extended family. But, this is just another example of corporations thinking they "know it all" and not siding on customers' safety and product reliability. It is partially my own fault to think GM had the problem solved in July 2021 when I got the Bolt. GM has a lot of mud on their face and it will take a lot for me to buy another GM vehicle. Mary recalled all the 20-22 vehicles but deserves no praise as it was a no-brainer anyone would make if they ever wanted to really transition to all EVs.
How long do I have to wait for a new battery? Probably 2 years but GM won't say or even give a realistic estimate or any other resolution, just less battery capacity. They claim this new software will give more range, but this is unrealistic as no one usually wants to drive the battery to 0% or even can given the weak DC charging infrastructure. Hence you normally have 20% to 80% you lost 40% or about 100 miles of range if you don't know where the next public DC fast charge is and within range with a safety margin. And we don't know if the DC fast charging will work quickly or taper off as it approaches 80%. Did GM test this and will they give us an answer? Probably not. GM's PR dept is very deceptive and not transparent.