I just started having the exact same issue a month ago. Additionally, the touch screen beep gets toggled to on. I took it to dealership and after 2 full days, they said the APIM was fine, but that there might be a loose wire in the dash (which they wanted to tear apart and I said no). Interested to know if yours ever got resolved. Honestly shocked that in this day and age a dealership cannot definitively figure out issues.