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 ...

How Does Your Key Fob Work? The key fob uses wireless technology with a frequency of 433 MHz. There are receivers/transmitters on the vehicle and the key, so they can communicate with each other. This ...

Even if your key fob is too dead to unlock your vehicle, it should still be able to start it. Simply place the fob close to a ...

Wallet. Cell phone. Car keys. That’s the mental checklist many of us go through before we leave the house. But don’t you hate it when you approach your car, click the unlock button and nothing happens ...

A key fob is a small device that helps you engage the security system on a car to gain access and, sometimes, start the car remotely. They come attached with an RFID chip & an antenna inside and use ...

Look in your pocket, purse, bag, or junk drawer, and chances are you’ll find a key fob. The basic ones lock and unlock your car’s doors. The fanciest do much more. But no matter which kind you have, ...

If you think you can go to any hardware store to have a new car key cut for a few bucks, you’re still living in the 20th century. Nowadays, when you lose a key or need an extra, you’ll probably have ...

Consumer Reports has no financial relationship with advertisers on this site. Consumer Reports has no financial relationship with advertisers on this site. The days of replacing a car key by having an ...

Keyless fobs might offer convenience to car owners by locking and unlocking and doors and starting the engine at the push of a button, but when the battery inside them dies it can leave drivers ...