I forgot they replaced my SD card reader and USB ports as well when then did my Infotainment system. Might be something to that. My system mostly crashed when I was using the USB drives for music.
As an update, I have removed the SD card and over the past few days, with temperatures between 0 and 20, I have not had a reboot since. So for those with the problem of the system rebooting at temperature extremes, this may be the issue.
