Had my first nav "lockup" today. Using nav to return to Home destination. About 50 miles into about a 100 mile route the nav audio quit. Just the audio portion of the nav.
The nav screen continued guidance correctly, turn indicators, ETA, blue route markings, etc. but Ms. Voice quit talking to me about turns.
Two USB sticks plugged in, audio playing a CD. Everything seemed fine until at some point I noticed there was no audio describing an upcoming turn.
I turned off the audio. No difference. I ejected the CD. No difference. I did the audio button 5-second press for InTouch reboot. No difference. I stopped the car, turned off the engine for a few seconds, and restarted. No difference. I canceled the route guidance and restarted a new route to Home. No difference.
Maybe it was something I said to deserve the cold shoulder treatment?