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 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?

A third test with a key fob for a Subaru showed that the device couldn't reach the vehicle from 20 feet away, but could successfully perform functions from just ten feet away.

Another possibility is manually locking your car with the key itself, which could potentially disable the key fob's signal. It's worth testing these methods on your own vehicle to see if they work.

Another possibility is manually locking your car with the key itself, which could potentially disable the key fob's signal. It's worth testing these methods on your own vehicle to see if they work.

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.

The key company explains that there are two options to replace a CR-V’s key: An original manufacturer key and an aftermarket key. An OEM key is tailored to your specific vehicle.

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 ...

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.

Another possibility is manually locking your car with the key itself, which could potentially disable the key fob's signal. It's worth testing these methods on your own vehicle to see if they work.