Like 6 months ago I started getting this error on my nav screen saying pc card door open. It will pop up, then go away randomly. I check the card door and it's closed, if I slid it open while the car is running I can see on the nav screen the same message. I close it and it goes away. Not sure why it's doing that, but I confirm it is in fact closed. Should I just take it to Acura? I still have the extended warranty coverage. Any body seen this before? Possible fix?