Don’t think so, the Kia’s had the same issue but they sent out an update early 2022 that changed when and crucially how often the car charged the 12v and that seemed to fix it. I know I’ve left my Soul unlocked for over 24 hours a few times over the years (left it unlocked today, 8am to 5pm…oops, just noticed when I looked out the window and saw my wing mirrors sticking out), something that used to be a killer of the 12v overnight and it’s been fine. Never had an issue with mine in over 45000 miles and 3.5 years.
The software is pretty much identical to the hyundai, the interface etc in the system is the same as is the remote app (just rebranded).
There were issues with the Ioniq 5 ICCU which manifest as several issues with charging and problems with the 12v battery, but they totally upgraded and revised the ICCU as a fix and all of the new models have the updated part, so that should also be sorted.
The only other issue with the 12v battery I could find is excessive calls over Bluelink for status information which repeatedly wake the car up, they solved this by restricting and/or removing third party calls on Bluelink – which is why the car was, then was not available on Octopus Intelligent Go. Octopus repeatedly requested info from the car and caused excessive 12v drain.
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