Most cars these days automatically lock all the doors once you reach a certain speed. Safety feature I guess. Once I got my 06 I noticed it locked the doors as well. No big deal, every vehicle does it these days. Then after a few months of driving, I noticed I could drive through my neighborhood a ways before they would lock. Again no big deal, it's a residential neighborhood with a 25MPH speed limit. Most of the time I'm going slower than that anyways. I need to check the owners manual to find out exactly what speed it is supposed to lock the doors at. Anyways, my question is, has anybody else noticed a small beep that occurs when the doors lock? I have heard it on my Jeep twice. Best I can remember, when I heard it, I had the driver window rolled part of the way down. I expect this is normal. I have not heard the beep with the windows rolled up. I was just wondering if I'm the only one that has heard this beep?