It has come to my attention that those who are tuned or looking to be tuned that are still within the warranty period are at risk for being FLAGGED for the TD1 code. For those of you that arn't familiar with it... TD1 marks the vin for a modified vehicle. This isn't at the dealership level but the corporate implementation of the Guided Fault Finding system. Anytime your vehicle needs a update via obd2 or a adequate GFF log to perform a warranty repair (mainly powertrain related), your at risk of being flagged for the TD1. If vw tech line is needed for repair you maybe noticed sooner then later. If not right away your still at risk if the warranty repair is reviewed down the road. There are ways around it if the technician decides to not provide the documentation to back up the repair (no way around GFF if a flash update is needed) but then they are risking an audit for themselves and the dealership. Those of you that know us on here will do what we can but there is only so much that can be done. This is not to alarm everyone.... This isn't the end of software options.... Maybe noone will be flagged but I'd rather inform you then see a thread blasting any local dealer for something thats out of the shops hads.