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 ...

Once upon a time, a long, long time ago, you needed to put an actual key into a car's door lock to get in. Today, the doors of most modern cars are unlocked by pressing a button on the key. In some ...

Opening the doors of modern keyless cars is simple when it works, but it becomes a challenge when your key remote's batteries are dead. So, how do you get into your car without a charged key? The ...

Check your battery type. Most fobs use small coin batteries (like CR2032), so confirm before you buy. Pry it open with care. Find the seam, pop it gently—no need to wrestle with it. Replace and click ...

Long gone are the days of having to use an actual key to unlock your car doors. Modern vehicles typically come with a remote key fob — a term with an interesting backstory — allowing you to lock and ...