Mine only works within a couple metres of the car, you really have to be standing pretty much right next to it with either key before they'll trigger the locks and I prefer it this way, because if anyone lifts my keys from my pocket whilst I'm in a restaurant or pub, whatever, and heads for the car park it'll take them a lot longer to identify which car they belong to. The wife's Focus works from miles away (slight exaggeration but you get my drift)