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?

Most cars allow you to start the engine by pressing the ignition button with the key, or by placing the key in a specific ...

Keyless entry systems have made locking and unlocking car doors much easier. However, they are not without drawbacks. The truth is that there are few things more frustrating and embarrassing than ...