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 ...

Key fobs are a generally pretty mundane and overlooked piece of automotive paraphernalia. A few decades ago, drivers didn't have a way to remotely unlock their cars, and now it's taken for granted.

The fob for your Chevrolet should work for years, but eventually, the battery will need replacing. When you look at the fob, it might not be obvious how to do this. In some cases, you just slide a ...