Update.......since last year, I have been having these ongoing problems with the top being all the way down yet the dashboard says "top in operation" and if you drive it, the buzzer sounds loudly in your ear. As described in my first post, they thought they had it fixed. Over the summer, it has acted up again. The sensor in the top says "low voltage" and shuts down the top operation. So, here is what they did. They figured there was a current draw somewhere. They let the car sit for three days, and sure enough, the battery was almost dead. They charged the battery and put their scanning tool on it and found a 675MA draw from the GPS/radio head unit. They removed the fuses for this unit, let it sit another three days and when they put the fuses back in, the battery had not lost any charge. Infiniti USA authorized a replacement GPS/Radio head unit and it was installed the other day. So far, no issues. The car is off factory warranty but since this has been an ongoing problem, warranty covered the entire thing. A big shout out to Baker Motorcars Infiniti in Charleston, SC for all their efforts and providing us with a nice Q70 loaner car. It has now been to Baker 8 times for this problem. Even Infiniti USA had no idea what the problem was. The top guy at Baker who works on Mercedes, Porsche and Infiniti tops said he had seen the same problem in a Mercedes so he looked at the GPS/radio unit in my car and found the problem with a short in the system somewhere that was creating a draw, not enough to notice in a day but enough to set off the top low voltage sensor.