Ah, chip keys, the bane of my existence. 4 of our work vehicles use them. You can only make 9 copies before the whole system has to be reprogrammed. And of course, a couple of the drivers are feuding and the keys always disappear. I would knock their heads together if I could get away with it. I am so not looking forward to our new vehicles, which will use a remote.

One practical fix is to carry a "mechanical" (unprogrammed) key on your ring or stashed somewhere. That way, if you lock the keys in the car, you can still get in.

Check your owners' manual. With the work cars, it takes two working chip keys to program another.