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 ...

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 ...

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 ...

We really are living in the future when your car just magically knows you're there without you having to do anything. The jingling of keys used to be the universal symptom of turning a car on, but ...

Dear Tom and Ray: How does one change the key fob battery in a 2003 Volkswagen Jetta Sportwagen TDI? Does the remote require a special process in order to be recognized by the Jetta after you’re done?

It happens to the best of us. You realize that your car keyfob battery is low, but you figure you have plenty of time left before it dies, and usually you do. But inevitably, it will run out of power ...

It started as one of those annoyances that feels almost cute—until it doesn’t. The key fob that normally unlocks the doors ...

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 ...

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 ...