Regardless of how many times you press the button or smack the key fob against the palm of your hand, the doors won't unlock.

Look in your pocket, purse, bag, or junk drawer, and chances are you’ll find a key fob. The basic ones lock and unlock your car’s doors. The fanciest do much more. But no matter which kind you have, ...

We may receive a commission on purchases made from links. For the sake of convenience, the battery in your car's key fob is designed to last a fairly long time, usually up to around four years. The ...

Don't panic if your key fob dies and you don't have a replacement battery. These little-known methods will get you back on the road.