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 ...

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 ...

A key fob is a small device that helps you engage the security system on a car to gain access and, sometimes, start the car remotely. They come attached with an RFID chip & an antenna inside and use ...

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Add Yahoo as a preferred source to see more of our stories on Google. Thanks to key fobs, hardly any modern cars still need to be manually opened with a key. But what do you do when the battery runs ...