I changed my 2014 to look like 2015 with new emblems but the grille has caused problems with the adaptive cruise control. It works but fails after about 5 miles and I get an error saying "adaptive cruise control temporarily unavailable". Has anyone else had any problems? The part number for the adaptive radar unit is different for 2015/16 models after talking to the parts manager at my local Kansas city Cadillac dealership.. They also confirmed there is also an adaptive cruise badge that can be ordered for $167, but why the different part number on 2015+ radar unit? The radar unit is over $1,000. I can't believe GM engineered that much variance on grills that work with the adaptive cruise radar unit. So frustrating! Thanks for any help/advice anyone can provide to help resolve the issue.