This update significantly improve the usability of the signal button and not being a nuisance when changing the music station.
Unfortunately I got the buzzing from the yoke after the update.
I just received the car back from SC today because of 2 minor and 1 serious issues: Frunk latch stuck, yoke electrical buzzing and a major issue with HighVoltage battery controller + contactor (this prevent supercharger to work with the car).
They fix the Major issue with the controller and the frunk, however they didn't fix the buzz.
They though it was fixed after they force to update to newer firmware. But I demonstrate to the technician that it is fine after the car went to sleep, but a simple tap on any of the yoke button will trigger the noise for the rest of the time the car is running. Sure enough the technician confirmed the buzz after I press the dim light.
Took them 19 days to get the parts and fixed my car, so I figure it's worth taking the car back home without the yoke fix. They did told me to come back if new update didn't fixed it.
I'm wondering if anybody with the signal update had the buzzing issue or I'm alone? (Make sure the music is off and the cabin is closed and tap the dim light or blinker once, put your ear near the signal arrow, hear if there's any buzzing).