Nav System DVD

[bfuller]

My wife has a 2008 Limited and lately the nav. system has been acting up. Sometimes she'll be driving and out of the blue the nav. system's screen goes grey and it says it has detected an error but no related code or clue as to what the error might be. It never seems to happen when the navigation system is actually in use, though. When the system is actively giving direction to a destination it works very well.

 

The only thing that gets things back to normal is shutting car off and restarting it. I'm assuming this is a mild form of resetting the system. She wanted me to remove the DVD from behind the nav. screen and check the disc for possible dirt or damage. I opened the screen and while I was cleaning the disc the screen closed and now when I try to get the screen raised to replace the nav. system DVD it won't allow me to as the "access disc" button on the touchscreen is dimmed and not accessible.

 

1 - Any ideas on how I can get this DVD back into the system?

 

and

 

2 - Should I try to reset the nav. system completely to possibly fix the error messages on the screen? This seems to be the natural next step in trying to fix the system.

 

Thanks, in advance for any help.