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.

Audi key fobs have varied slightly between different models over the years, but the process to replace batteries is relatively similar and simple for each one.

Batteries fade and die over time, but but changing the cell in your Chevrolet key fob doesn't have to be difficult.

Locked out of your car because your key fob battery died? Learn step-by-step how to unlock your vehicle, start it with a dead key fob, and prevent future lockouts with this essential guide.

The keyless car is a marvel of engineering. But how is it that they can start even when the battery in your key fob goes dead? The answer lies in science.