I had our 2017 S AP2.0 MCU1 upgraded to HW3(no MCU2) this week. It was kept overnight. When I picked up the car, the GPS was not working. I had to bring it back to the Paramus SC. My service advisor said a problem with the cameras caused the GPS to become inoperative. I picked up the car after hours today, finding the cameras were calibrating on the way home. Now the dash cam and sentry work. I have to say the customer service was great. They have significantly improved this year.
Dash cam and sentry mode actually records and saves to a USB drive with MCU1?