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 ...

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 ...

We may receive a commission on purchases made from links. For the sake of convenience, the battery in your car's key fob is designed to last a fairly long time, usually up to around four years. The ...

Now that nearly every car on the road comes with an electronic key fob, people are desperate to find ways to repair these indispensable little gadgets without coughing up potentially hundreds of ...