My Pacifica, which I believe to be a lemon, has had numerous problems, with the major ones being front end /axle issues that the dealership and a Chrysler engineer think the problems are related to the upgraded wheels I put on the Pacifica. I have a 2017 Pacifica purchased new last August and went with the exact wheel setup specifications that Ralph Gilles (Gilles was the President and CEO of Chrysler's SRT brand and Senior Vice President of Design at Chrysler before being promoted to Head of Design for Fiat Chrysler Automobiles in April 2015.) put on his Pacifica (see Project Venessa on You Tube). The front end problems started at around 5,000 miles and initially I heard a clicking/creaking sound coming from the front end. I took it to the Chrysler dealer and they replaced bearings and sent me on my way. Shortly thereafter I was driving with my three kids in the van and all of a sudden heard a horrible grinding sound and I immediately pulled over and when I put the van in park it started rolling backwards as if it was in neutral ( we were on a hill). I thought the transmission had failed. The dealer said the right axle had failed. After being in the shop over a week, I picked up the van, this was on a Monday, that following Friday, the same problem occurred. This time they said the left axle failed. Since then, I have taken the van back multiple times because I am still hearing the clicking sound. It has had two TSB's completed, various service on the bearings and front end parts and still I have problems. The clicking can be heard at slow speed when backing out or turning. I have looked on the Pacifica forum and found that there are others that have said they hear the similar sound on their Pacifica. They have the factory wheels. I don't believe the issue is the upgraded wheels, if it is, what does it say about the strength and quality of the Chrysler suspension? I have upgraded the wheels on every car I have ever owned, without any issues. In trying to get a resolution, I first dealt with someone from Chrysler Escalation. This was a total waste of time. I am now dealing with Mike McDonald at Chrysler corporate who I received a call from because my wife happened to do a Chrysler Pacifica focus group and she told them about all the problems we have had and so they had Mike call me. He had me take the van in when a Chrysler engineer could look at it. The end result is they are telling me the problems stem from the larger wheels. They suggested I go back to the factory wheels and see how it goes. This has been a horrible car owning experience because I have spent so many days driving loaner/rental Dodge Caravans instead of what I paid for. This isn't the only problem I have had, so that's why I really think I have a lemon of what is I think is otherwise a great family hauler. So disappointed in the Chrysler runaround. I've asked them to replace the vehicle, but to no avail. You would think it would make more financial sense to replace a lemon vehicle than to have a disgruntled owner spreading the word about the poor quality telling others to avoid a Chrysler.