Yesterday, my NAV system locked up during re-routing. I successfully canceled the whole route, but the screen was still locked up. I could view Audio without problem, but whenI returned to NAV, the cursor was stuck. I had to turn off the ignition to reset (reboot?), and it appears to work fine.

Is this something to worry about?

 

My '05 has done it twice, months apart and each time it cleared when I restarted the car. Not something I was able to reproduce. While I'm not thrilled that it happened, I'm not really worried about it.

 

It has happened to me once, last Friday. Never had a problem before and it worked fine after.

 

Happened once many many moons ago, no problems since.

I wouldnt worry about it.