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How to Replace a Dead Mazda 5 Key Fob Your Mazda 5 key fob comes with a number of excellent features. Some of them increase performance or safety while others make driving in East Stroudsburg Brodheadsville and Saylorsville more efficient. Remote start is among the most convenient features. If you are having trouble getting your car started, it may be time to replace the battery in your keyfob. What is a keyfob? A key fob can be used as remote control to unlock and start your car without having to insert a metallic ignition key. It is a small device that has a microchip on which information such as an individual ID is stored, and an antenna to send and receiving signals. The microchip transmits radio frequencies with the receiver in your vehicle. These signals are a form of near-field communication (NFC) which allows for contactless payment and other features that require proximity. Depending on the kind of key fob you've got it can provide various features. For instance, certain systems keep a log of who has accessed the system and when, which can be hugely beneficial in preventing crimes. There are additional security measures that can be added to the system, such as encrypted keys that make it more difficult to copy them. Prox cards are a popular type of fob and are also referred to as 125khz, 26-bit or proximity cards. It's recommended to have a spare key fob for your vehicle in case one gets stolen or lost. Many automakers let you self-program another key fob, which can be convenient and cost-effective. It is important to remember that the procedure varies from manufacturer to manufacturer and might not be easy. It might take some time to discover the correct instructions and steps, but it's well worth it for a more reliable key fob that will help you reach your destination safely. How to open a key fob It's frustrating to discover that your Mazda key fob won't unlock. A malfunctioning key fob can ruin your plans, whether you're getting ready to go to work or coming home after an an exciting afternoon at EAA Airventure. It's easy to change the batteries of your key fob at home by using a couple of simple tools. Holiday Mazda's Service team has developed this guide to assist you in opening a keyfob and replace the batteries. Push the auxiliary button on the back of the key fob to take off the auxiliary metal. After the key is removed, you will see an opening on either side of the case. Carefully pry the case open with a tape-wrapped screwdriver. It should break easily without damaging the rubber ring beneath that the battery rests on. When the battery is exposed, take the old one out and set it aside somewhere where you'll never forget about it. Then, place the new battery in its spot, making sure that the positive (+) side of the battery is facing up. Close the case when the new battery is installed, making sure that both sides snap in place. Now you're ready to use your Mazda key fob once more! What is the battery needed for a key fob? The majority of key fobs are powered by small, coin-shaped batteries known as button cells. They are readily available at all kinds of stores, home improvement stores, as well as some auto part stores. It is essential to select the right battery size for your keyfob. Different sizes of batteries have distinct discharge characteristics that could influence how your keyfob operates. You can usually tell if the battery in your key fob has died by pressing the buttons and watching the LED light. If the light on the LED doesn't turn on, it means that the battery is depleted and needs to be replaced. You can also use a voltmeter on the battery to check its voltage. A fully charged key fob should show around 3 Volts. If the battery's reading is less than 3 Volts, it needs to be replaced. The first step in replacing the battery is to open up your key fob and locate the notch which divides it into two halves. You can use a screwdriver, a knife or your fingers to push into this hole and push the two halves apart. Once the halves are separated take a look for screws that are tucked away on the back of the key fob, and unscrew it. Store the screw in a safe place like a resealable cup or bag to avoid losing it. How do you replace the battery in a key fob A key fob is a small device that connects to your key ring with buttons that let you lock and unlock your car and even start it remotely (one of many possible secret uses for these devices). The fob transmits an electronic signal that allows the car to perform this. However these signals are powered by batteries. Your Mazda won't be able to operate in the event that the battery fails. This could be a nightmare. It's simple to replace the battery on the key fob. The first step is to open the key fob by pushing the screwdriver's tip into the seam where the two halves snap together. There is usually an opening in this seam that makes prying the two halves apart simpler. After opening the case, gently pull on the key blade to remove the old battery. Insert the new CR2025 into the case, making sure the plus side is up. Once mazda key replacement is installed place, slide the black cover piece back on and slide the key blade into place. It's a quick and easy process that can be accomplished at your home in Springfield however the steps will vary depending on your model year and key fob model. If you have any questions, the team at Eich Mazda is here to help!