Like anything powered by a battery, a car key fob can die—often at the worst time. Here’s how to change the battery in your key fob quickly and safely. Check your battery type. Most fobs use small ...

If you're old enough to remember when cars had simple key ignition switches and not start buttons, you may find modern key fobs frustrating. With your key in hand, the only dead battery that could ...

Modern key fobs can do a lot, but even a dead battery usually won't leave you stranded—if you know where to place the fob.