What this usually means
Yellow border = UV damage, often warranty-eligible. MCU lag = software, usually fixable via reboot or update. Tesla service centre is your best bet here — they often UV-treat under warranty for free.
What to ask the workshop before approving repair
- • Show the diagnostic fault codes.
- • Show photo/video proof of the failed part.
- • Give an itemised quote for parts and labour.
- • Explain why cheaper common fixes were ruled out.
This is not a final diagnosis. It is a money-saving checklist before you go workshop.