my vehicle has a safety issue that is tied to the NAV system and its interaction with the vehicles drivers assist functions. Multiple times while driving the vehicle, the NAV system would decide the vehicle was on a different road than it was actually on. The first time it happened; I was on the freeway traveling at 70 MPH when the NAV system decided I was on a residential street several miles away with a 25 MPH speed limit. The vehicle immediately adjusted to what it thought was the posted speed. To be more specific, the vehicle slammed on the brakes and went from 70 MPH to 25 MPH quite aggressively. Luckily, no one slammed into me as I regained control of the vehicle. This has happened multiple times on different roads, different speeds, with or without using the NAV system for guidance. I have found that turning off all of the drivers assist functions stops the vehicle from slamming on the brakes but the NAV system still occasionally goes nuts. I have taken the vehicle to the dealership 3 separate times with no joy. The dealership has been unable to duplicate the defect to date however the last time in I was able to provide video evidence of the issue. The dealership did provide me (on 14 April this year) a copy of an older memo from Volkswagen identifying a potential NAV issue. According to the memo the issue should have been taken care of by Aug 2024. My issue extends well beyond that date. Of concern to me is the fact VW knew there was an issue but failed to tell the consumer to turn off the Adaptive Cruise Controls functions until this issue was fixed. As my vehicle still has the issue, I don’t know if it’s related to the memo or something different. I’ve attached the last 2 workorders, vehicle is still at dealership for 3rd time. I also attached the document I provided the service writer the first time I dropped the vehicle off. Also attached is the VW memo on the NAV system