I bought my cx3 9/30/16. I love it. I had my headlamps swapped out and now my keyless entry works sporadically. I placed a new battery in it a year ago. And an internet search says I should be good roughly three years. It was working after I pressed it like 3 or 4 times. But now nothing. I am going to place a new battery in it. I hope it doesn't need to be replaced.