The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

Like anything powered by a battery, a car key fob can die—often at the worst time. Here’s how to change the battery in your key fob quickly and safely.

Watch this video to see how to change the battery in your key fob. How to replace car key battery Most key fobs have a little slot you can use to pop them open with a small flatheaded screwdriver ...

How to un-filth your keys Whether you still drive a car that uses a physical flat key or you have a fancy car with an electronic fob, cleaning them regularly is a great idea.

Fig. 4: Transponder communication between key fob and vehicle on LF pins on key fob. RF test The Amplitude Shift Keying (ASK) modulation is used to transmit RF authenticated signal from the key fob to ...

Thieves amplify a vehicle's radio signal to access and copy the key fob signal to steal a vehicle. Here's how to block the signal.

How much thought do you pay to your car key fob? This piece of plastic may be little, but can help you do more than just unlocking your car.

Your car’s key fob allows you to get in and out of your car, but if it’s damaged, it may or may not be covered under warranty in some cases.

Think your car will stop if you forget the key fob? Here's what really happens and why, even if the engine keeps running, it could still cause problems later.