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 ...

Physical keys used to be standard, but today’s cars often have a key fob instead, either built into the key or as a separate remote. Of the many uses for your key fob, it can lock, unlock and even ...

Wallet. Cell phone. Car keys. That’s the mental checklist many of us go through before we leave the house. But don’t you hate it when you approach your car, click the unlock button and nothing happens ...