Newer cars come with a key fob of some sort, whether as a separate device attached to your keyring with buttons to lock and unlock your car, or integrated into the key itself. These fobs send a ...

How Does Your Key Fob Work? The key fob uses wireless technology with a frequency of 433 MHz. There are receivers/transmitters on the vehicle and the key, so they can communicate with each other. This ...

You may know the signs of a key fob with a bad battery: having to press the button multiple times or getting close to the car for activation to kick in. Sometimes the functions engage, and at other ...

Most drivers only use their key fob to lock and unlock doors. There's a lot more it can do, and some of these features are ...

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 ...