https://www.openlearning.com/u/frostgilliam-soacou/blog/CarKeyFobReplacementNearMeToolsToMakeYourDayToDayLife How to Get a Replacement Car Key Fob In the past, if someone lost your key to your car you could visit your local hardware store and have a basic key cut for you while you were waiting. Now you need to go to the dealer or locksmith to get a replacement key fob that can unlock your doors and also start your engine. Buy a New Battery The key fob is an increasingly common feature of automobiles. The tiny device attaches to a key ring and has buttons to unlock, start the car and controlling other functions, like the windows or alarm. It also transmits an wireless signal to the vehicle in order to communicate with its control systems. While they're convenient, fobs are not indestructible. It is essential to replace the batteries in them once they've worn out. Unlike , however the battery inside most key fobs isn't difficult to replace. Most fobs are powered by conventional coin-shaped batteries that can be found at most general and auto parts stores, and also a few home improvement and home improvement stores. Look for a sticker or tag that indicates the kind of battery your fob uses, or consult its owner's manual for details on which kind you need. Certain fobs require a particular type of battery, for instance the Ford Mustang's key fob that uses two of the same type of battery. Once you have the correct kind of replacement battery in your possession, carefully pry the case open with a flathead screwdriver or watch knife. Some fobs feature holes or a notch that can help you start, while others have a slot designed to let you open the case from the side. When you're able to open the case, you can wedge your pry tool through the fasteners and move around the edges. After you've removed the old battery, ensure you note its orientation to ensure you can put the new battery in the same direction. The fob halves should be snapped together and test it to ensure that t