I see this popping up from time to time but I am trying to find a definitive solution. I have a 2015 CX-5 with the TomTom NB1. Every now and then the traffic sidebar disappears completely with no apparent input on my part. I have to restore the Nav card on my computer to get the sidebar back. However, within a certain amount of time (it was two months the first time, now it was just over one week) it disappears again. Am I doing something wrong? I can't possibly keep restoring the card, it is maddening.