NHTSA Complaint #11485425 — 2020 VOLKSWAGEN JETTA

The problem I am facing is with making calls in the car both via android auto and Bluetooth. When making a phone call, if the volume is adjusted during the call, the other person will hear a very bad echo of their own voice. The echo only occurs when the call volume is adjusted, and I can't hear it in my own car. I have been to the dealer twice to diagnose this issue, and talked to VW Customer Care, neither has been able to fix the problem or determine why it's happening. The first visit I didn't know that changing the volume caused the issue, during one of the trips they replaced the microphone and tried multiple phones (iPhone and Android), neither fixed the problem. I purchased this car used with around 10k miles on it from VW and have had the issue ever since. This is NOT A SAFETY ISSUE, it’s just very annoying.