I have been driving my 2014 QX60 for about a year and overall experience is fine. However, a crack suddenly showed up on the front windshield after I parked the car in front of my workplace. It does not appear to be a scratch since the edge is very smooth and started from the bottom of the windshield. If it is a scratch by stone or chip, the edge is usually uneven. I saw similar post in this forum and I wonder if this a quality issue due to either unfit windshield from the frame or due to poor quality of the windshield from temperature changes. I am heading to the dealer today and see what they would say.