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 ...