New key fobs must be programmed with codes that the vehicle has to read before it unlocks the door or allows starting the engine.

Like anything else relying on a battery, you car key fob can die—often at the worst time. Thankfully, these batteries are easy to replace.

When your Honda key fob runs out of battery, you can take it to a dealership, but it's pricey. It's much cheaper and not too difficult to do it yourself.

Locked out of your car because your key fob battery died? Learn step-by-step how to unlock your vehicle, start it with a dead key fob, and prevent future lockouts with this essential guide.

If the battery in your car key fob has died, here's how to replace it – including the type of battery you'll need and the cost involved.

How exactly do you swap out the battery on your key fob? In this piece, we’ll walk you through how to change the key fob battery for a specific vehicle - the Toyota Prius. Read on to learn more.

Do you get a warning message on the screen that the battery in the remote control key fob needs replacing when starting your car? This wireless technology needs the power to work. If you’d like to ...

Crimes committed by tech-savvy car thieves using special tools purchased on the internet are contributing to a spike vehicle thefts.

The same researchers who figured out how to clone a Tesla Model S key fob have done it again, cracking the replacement that was meant to fix the problem.