I have a 2015 and a Samsung S5, it takes several minutes for the Trax and the S5 to get together but it does eventually find it. Where it seems to really get confused is both the wife and I get in the car and we both have our S5 phones on. It seems that the car does not know which one to use so it will not connect to either, and has to be done manually. I have not needed to try the voice commands yet so I do not know if they respond correctly or not.