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?

“The cost to replace the latest key fobs can run anywhere from $50 to as high as $400 depending on the brand,” says Consumer Reports automotive analyst Mel Yu. And that’s just for the fob.

For added convenience, a mobile locksmith can replace many fobs, programming and cutting the keys right in your driveway. And did you know your fob is hiding a secret?

Just know that most customer-programmable key fobs will require two current working keys in order to program the new one. RELATED: How to replace your key fob | Your key fob may have hidden features ...

How to Replace the Key Fob for Your Car The cost to replace the latest key fobs can be as much as $400 depending on the brand ...

For added convenience, a mobile locksmith can replace many fobs, programming and cutting the keys right in your driveway. And did you know your fob is hiding a secret?

How to Replace Your Car's Key Fob Consumer Reports looks at what you should know before heading out to find an expensive new key fob.

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.

If you're looking to pick up a new key fob, or repair one, you might wonder how long programming it takes and whether or not you can do it yourself.

Those key fobs ain’t cheap, friends! And a woman named Emma found out all about that cold, hard fact of life recently when her key fob broke and she went to a Honda dealership to get a replacement.

If your 2005-2012 Lexus GS’ key fob decided to stop working suddenly, the problem can be its battery that got depleted. Replacing it is very simple and you only need a thin screwdriver and the ...