Interesting - I had my 2014 GC in for service due to Check Engine light code P20EE00 - they did the steps everyone else has had (software update first, and then catalytic converter replaced a week later). But the write-up from the dealership specifically mentions this recall (WI Tech on Vehicle; P20EE Active, test the DEF and replace the SCR Catalyst per recall R-69-16). My vehicle was repaired on 4/5/16.