Recalls happen because a safety and / or quality issue is identified. Than this issue is remedied by a rwcalk: either forced or voluntary one.

Cars are recalled because a part might fail during operation, worst case that risk is found once the part did fail.

Only a bunch of incompetent frauds would:

a) ignore their own data and wait four years to recall, and then only in one market

b) need years to find a solution, as it seems, still isn't good enough

c) issue a policy to blame these failing parts, well known and identified internally, on their customers