Some have experienced issues with the doors not unlocking or not opening or closing too soon, etc... While there may be some other issues for some, I have found that if I keep the secondary key fob, waaaaay away from the car, all issues disappear. If you are having any unlocking or door opening closing issues, try placing the secondary key fob well out of range of the car and see if that helps. Whenever my wife puts the fob in her purse and rides with me, I always experience these random issues. Now she keeps the fob at home, and she is not too happy about that. But I am!