They have over the past 8 months come out with worthless service bulletins.
Let's be honest about what has happened over 8 months...
There first needed to be enough vehicles shipped that customers had them
then there needed to be enough sold to identify there was a problem
then there needed to be some amount of time for them to come up with a series of fixes
then there needed to be enough time to get that out in the form of the tsbs
then there needed to be enough time for them to apply it to customer vehicles
then there needed to be enough time to determine that for some, that wasn't working
then there needed to be enough time to find a new fix
somewhere in the middle of that a global pandemic came around that closed up hyundai
now there needs to be some time for people to come back to work and prioritize finding that fix again
then there will need to be enough time to get the supply chain for the fix back to life
then there will need to be enough time to get that fix out to people
I get the frustration, but Hyundai has been a lot more responsive to this than I would expect from most brands (one anecdote of a $300 offer aside). Either lemon your car and get it over with or be patient.