Modern cars have swapped regular keys for key fobs, and most of them use a CR2032 button cell battery. How can you tell if it's weak? How long do they last?

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 ...

Unlocking your car without a traditional key is a godsend for those times when you're in a rush or your hands are full. RELATED: What to do if you lock your keys in your car RELATED: What to do when ...

Most drivers discover their key fob battery is failing at the worst possible moment: standing in a parking lot, pressing the unlock button repeatedly with no response. But modern vehicles are designed ...

Keyless fobs might offer convenience to car owners by locking and unlocking and doors and starting the engine at the push of a button, but when the battery inside them dies it can leave drivers ...

Check your battery type. Most fobs use small coin batteries (like CR2032), so confirm before you buy. Pry it open with care. Find the seam, pop it gently—no need to wrestle with it. Replace and click ...