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?

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.

The key fob is a notable chink in the modern car's less than optimal cybersecurity armor.

Driving off without your key fob won’t immediately stop the car, but you might not be able to restart or lock it once you reach your destination.

Thousands of Toyota new car buyers are growing frustrated because they can't get a second key or fob, leaving them worried about losing their one key.