Volkswagen Jetta 2017 Problems

It shouldn’t be doing that. Take it back to your dealer and demonstrate what it’s doing and ask to explain it or fix it.

It's hard to know exactly what you want to know, but briefly the Trendline is the entry level model, the Comfortline the mid-range model, and the Highline is the one with all the gear. The list of standard equipment increases with each model.

Take it to a car radio specialist and have them check it. They should be able to tell if it’s the antenna that’s the problem.