One problem related to crankcase (pcv) has been reported for the 2016 Jeep Renegade. The most recently reported issues are listed below.
Bought Jeep brand new and now has 17,000 miles on it. Have had injectors replaces. It has been to the shop several time for pcv valve freezing and causing cylinders to misfire. It has been burning oil and occasionally will just shut. In the last month it has been to the dealership 3 time and usually at least 2 days a pop. One of those times had it towed in at my expense. Very displeased with engine. Dealer told me they had no fix for the problem. So this is something I will have to deal with every winter. Not even safe to drive. Very disappointed. At one point shut off turning into my driveway where I was almost hit by a semi truck.