One problem related to o2 sensor has been reported for the 2015 Jeep Renegade. The most recently reported issues are listed below.
The vehicle has less than 14k miles on it. We have had to replace the O2 sensor. Less than a month later, the wiring harness has melted. Dealership advised that the wiring harness has been updated indicating there was a defect that was corrected. However no recall was issued. Why not if the part was updated to fix a defect?.