The vehicle needs to be in drive and moving at a somewhat decent rate of speed for it to work. I want to say it needs to be above 10 or 15mph. While you're driving, turn the key all the way to the crank position and hold it there until you hear a chime come from the speakers. It should work just fine on your 2009, as we used to do this to my best friend's 2010 Chrysler 300 all the time.