If Vw can come up with software that cheats on emissions test mode then its not hard to believe they could write software and I choose my words carefully for a test drive mode that would give a good impression of this new battery powered car that is the first electric only and the first car to kick of this new third generation of cats this is a very important car for VW and looks like they ate upto their old tricks again or it could be a software glitch which they are having a lot of problems with lately.
I would insist on a few hours or half day drive before I would consider a car especially if it was using a different propulsion than what I am used to.
The software issues vw are having is one reason why I am looking at cars other than Vw, current drive is Tiguan 2.0Tdi great car no software issues as it not on the new system