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How to Replace a Dead Mazda 5 Key Fob Your Mazda 5 key fob has several wonderful features. Some of them improve the performance or safety of your vehicle, whereas others help make driving around East Stroudsburg, Brodheadsville, and Saylorsville more enjoyable. One of these convenient features is the remote start system. If you're having difficulty starting your vehicle it may be time to change the battery on your key fob. What is a key fob? A key fob is a remote control that allows you to unlock and start your vehicle without the need to insert a key of metal in the ignition. It's a small device with a microchip that contains information such as an individual ID is stored, and an antenna for sending and receiving signals. The microchip communicates with the receiver inside your car through radio frequencies. These signals are a kind of near-field communication (NFC) that permits contactless payments and other features that require proximity. Depending on the kind of key fob that you have the system will have various features. For instance, some systems keep a record of who used the key and when, which can be significant in stopping crime. There are other security measures that can be added, like keys that are encrypted, making it impossible to copy them. Prox cards are extremely popular for fobs and are also known as 125khz or 26-bit or proximity cards. You should always carry an extra car key fob in the event that your original is stolen or lost. It is convenient and cost-effective to create a third keyfob on your own. It is important to keep in mind that the procedure differs from one manufacturer to the next and isn't always easy. It may be necessary to conduct some research to discover the correct instructions and steps. However, it is important to have a reliable key fob that can assist you in reaching your destination in a safe manner. How do you open a key fob It's a hassle to discover that your Mazda key fob isn't unlocking. The Keylab lost key fob could ruin your plans when you're getting ready for work or returning home after thrilling afternoon at EAA Airventure. Fortunately, changing the battery of your key fob is easy and can be accomplished at home, using only a few tools. The Service team at Holiday Mazda has put together this useful guide on how to open the key fob and replace the battery. Use the auxiliary button on the back of your key fob in order to remove the metal auxiliary. After removing the auxiliary key, you will find the slots on both sides of the case. With an abrasive tape-wrapped screwdriver, gently pry open the case. It should be able to break off without damaging the rubber ring beneath the battery. Once the battery has been exposed then take the old battery out and set it aside somewhere you won't forget it. Place the new battery into its original position, ensuring that the positive (+ side) of the battery faces upwards. After the battery is placed in its place, close the case ensuring that both sides snap into place. Now you can use your Mazda keyfob for the second time. What's the battery in the key fob? Button cells are the most commonly used type of battery used in key fobs. These batteries are easily available at all kinds of stores, home improvement stores, and some auto parts stores. It is important to find the right size battery for your key fob since different battery sizes have varying discharge characteristics, which may affect the way your key fob works. Most of the time, you can determine if your fob battery is dead by pressing any buttons on it, and then looking at the LED light that lights. If the LED light does not come on, it is a sign that the battery is dying and needs to be replaced. You can also test the battery using a voltmeter to determine what voltage it is running at. A fully charged key fob battery should read about 3 Volts. If the battery's reading is less than 3 Volts it should be replaced. The first step in replacing the battery is to open up your key fob and locate the notch that splits it into two halves. You can use your fingers or a screwdriver, or a knife to push the two halves. Once the halves are separated, take off the screw that holds the key fob in the back. Make sure to keep the screw in a safe place, such as a sealable cup or bag to ensure that you don't lose it. How to replace the battery in the key fob A key fob is a small device that is attached to your key ring and has buttons that allow you to lock and unlock your car and even start it remotely (one of the many possible uses for these little devices). The fob transmits wireless signals to your vehicle that allows it to do this, however that signal is powered by batteries. Your Mazda is unable to perform any action should the battery fail. This can be a huge inconvenience. Luckily, it's relatively easy to replace the battery with a key fob. The first step is to open the key fob by pressing the screwdriver's tip into the gap where the two halves snap together. The seam is usually formed by a notch which allows you to easily pry the two halves apart. After opening the case, gently pull the key blade to let go of the old battery. The new CR2025 battery should be pushed into the case, making sure that the plus side is facing up. Once the new battery has been installed place, put the black cover piece back on, and slide the key blade back into place. This is a quick and easy process which can be carried out at home in Springfield but the steps will differ depending on your model year and key fob design. The staff at Eich is always ready to answer any questions you may have.