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.

GREENSBORO, N.C. — 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 ...

It's been a year since I replaced the key fob on my 2004 Malibu, saving more than $100 buying online instead of from a dealership. I paid about $25 for the fob and $50 to have a Chevy dealer program ...