Just heard back from Tech/Service Advisor. They are replacing right headlight unit. It will be covered under warranty. I guess they can somehow tell which one is having issues.
FYI. Out of warranty cost would be $1300 just for the headlight.
Parts are coming out of CA and it will take about 7-10 days to receive. Will be called back in once they are ready to install. From talking with the techs, it sounds like quite a few items can go wrong to cause this error, internal and external to the actual light assembly.