12V problem after latest TSBs on 2023 limited

[CompleteHost]

Had the recent TSBs done on my '23 Limited including a T9Z update according to the service. Running a BM2 sensor and before the update, the 12V constantly charged while driving. Now, it seems to be all over the place - not charging at all sometimes, then kicking in on and off every few seconds/minutes.

Curious why Hyundai might have changed the whole 12V charging behavior, and what's the deal with this T9Z update? This "off-and-on" charging is concerning. Anyone else experience this after the update?

 

[zuro1gd]

I've noticed that since the ICCU system was updated, the charging light has come on more frequently.

 

[zuro1gd]

Update: Had my software updated, and this was fixed