Look in your pocket, purse, bag, or junk drawer, and chances are you’ll find a key fob. The basic ones lock and unlock your car’s doors. The fanciest do much more. But no matter which kind you have, ...

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 ...

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 ...

Consumer Reports has no financial relationship with advertisers on this site. Consumer Reports has no financial relationship with advertisers on this site. The days of replacing a car key by having an ...

If the battery in the key to your 2018 Chevrolet Spark dies, you can change the battery yourself in a few simple steps. The following instructions explain how to safely change the battery in the Chevy ...

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 ...

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 ...

The modern key fob is a clever and convenient way to unlock and lock your car, and in many instances, key fobs do far more than just this. This is all well and good, but what happens when pressing the ...

A parasitic key fob left inside a car could be silently draining the battery, a concern highlighted by TikTok mechanic Brandon Sloan (@performancetransmission). Featured Video In a video posted on ...

Q: Many new cars are equipped with key fobs that never have to be touched to unlock, lock or start the car. I have several friends who park in their attached garages and never take the fob out of the ...