I smell coolant when the vehicle is shut off after driving and the heat does not blow hot. I had the dealer look at it winter of 2017 under warranty and they reported no problems. I later find out about the lawsuits against Jeep for sludge in the cooling system caused by a defect in manufacturing creating these exact symptoms.

It is winter again, and the heat does not blow hot. When it is cool out it seems hot but on cold days it is not acceptable and takes a very long time to even get warm.

Heat stopped working, dealer diagnosed as 'clogged heater core'... needed replacement, expensive job due to high labor times to remove dash. Based on online information, seems to be a known issue. Dealer indicated that coolant flush would not fix problem. How does this part fail so quickly on a 2015 Jeep with 53K miles. Radiator also leaking, will submit separate complaint.

I bought my 2015 Jeep back in May 2015 in GA and moved to Colorado in June. Since being in Colorado is much colder, I've used the heater since the end of October 2015. Once I started using the heater, I noticed that it doesn't heat the vehicle very well or at all on very cold days (17 degrees external temp). However, the A/C does work quite well.