I have a 2015 Patriot "4x4" with FDII and CVT Trans. I Just got it back from the dealer for this reason. Both times that I've been on the 15 fwy in SoCal, the CVT overheated. Starts with a whine, then the light comes one, then you loose power to the car and have to pull over and wait for it to cool. This is a self-protect feature for the trans but it is sooooooooooo un-safe because you suddenly have to negotiate crossing over 4 lanes of highway with a limping car; there should be a lawsuit against Chrysler for this...... but anyway. I got it back and the dealer said the CVT was overfilled with fluid. This are their notes:
Unable to verify overheat concern. trans is overfilled. Scanned modules not DTC's. Fluid is at 60mm at 110 degrees.
set to 30mm at 180 degrees. road tested 3 miles all shifts normal. trans operates as designed.
So, if this is to be believed, the trans was severely over-filled based on the graphs(attached). I'll have to see how it does but from what I've been reading, this is common for these Jatco CTV transmisions; we might all be f!@*&.