Nav Screen/Back up Camera Quit Working




She told me the Nav screen was black and the only thing she could get was the climate info screen. No back up camera, phone, nothing.
I verified this and tried resetting it by pressing the CD eject button for 10 seconds. All that did was turn off the climate display.
After 10 minutes of screwing with the system (pressing all the buttons) I decided to press the call Mercedes button...the one with the wrench. The phone started ringing and then all of a sudden the Nav screen came back on and everything was working again. I terminated the call and all is well.
Now I'm wondering WHY. Any ideas?




Amazing, when you don't use one manufacturers navigation system for some time, how soon we forget. My brain must have been cluttered with our new Acura's system.
Thanks for the help!!


