[jimw625]

12V battery test under load for SOH with terminals removed, have you done this?
Set service department appointment for all issues you have facing and provide pictures you have already. Also keep log of time and dates when it is happening, when driving ir standing still, any other errors that prevent you from starting vehicle. Most of issues regarding matrix lights and nannies are related to the front windshield camera ( make sure you keep this part of windshield clean).... driving in snow or icy rain where ice is building over sensors on front bumper and side sensors will trigger this issue.
Providing as much as possible explaining how and when it happening will help technician to recreate issue.

Yes, it is a lot of work owning/driving a 2021 id.4. I have stopped tracking the little annoying faults in the software. The part about driving carefully is fun. The other great fun about the car is waiting for VW to remember that they owe us an update on that beta level software they shipped with our cars. I am also enjoying the launch of the 2023 models and the surprises the new owners are finding in the "Production" software in the new cars.

 

[jimw625]

Through the BBB Auto Line - I told VWoA I was sick of the problems with the car, have my rights as a Californian and started the process that way. VW makes you jump through all sorts of hoops....I once had an MBZ that was in the shop A LOT, but i didn't care as the dealer was competent and always had a loaner MBZ avail...MBZ called me out of the blue, apologized for the inconvenience and offered to absolve my lease and refund my payments....VW is 180 degrees from being anything customer friendly like that.

Yes, it is a lot of work owning/driving a 2021 id.4. I have stopped tracking the little annoying faults in the software, but feel your pain.

 

[jimw625]

There are retained error logs, however, since there are so many Bus transients the serious errors may be getting written over. The whole error recording and processing in the car seems incomplete and not what you would expect from todays software design. It really looks like the software team for VW were not very sophisticated.