I am new to the forums here, but I have been reading for a couple months. I know that the Nav in the CX-5 gets mixed reviews at best, but for the first time the other day the Nav system wouldn't respond. Pressing the navigation button wouldn't pull up the map, while other functions (phone, audio) worked fine. Navigation didn't resume working until after the car was shut off and restarted. We were coming out of a parking garage where GPS signal was lost and I am guessing it just didn't recover after signal was regained. Are there any chronic lock ups with the Nav? Most complaints I hear about are with the voice recognition.
