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How to Replace a Dead Mazda 5 Key Fob There are a variety of great features that come with your Mazda 5 key fob. Some of them boost the performance or safety of your vehicle, whereas others help make driving around East Stroudsburg, Brodheadsville, and Saylorsville easier. new mazda key fob of these handy features is the remote start system. If you're having difficulty getting your car started, it might be time to change the battery in your key fob. What is the definition of a key fob? Key fobs can be used as remote control that allows you to unlock and start your car without the need to insert a metallic ignition key. It is a small device equipped with a microchip in which information like an ID number is stored and an antenna that can be used for sending and receiving signals. The microchip transmits radio frequencies with the receiver inside your vehicle. These signals are part of near-field communication (NFC) that allows for contactless payments, and other features requiring proximity. Depending on your key fob's design the key fob will have various capabilities. For instance, some systems keep a log of who inserted and when, which can be significant in stopping crimes. Security measures can also be included such as encrypted keys that make it more difficult to copy. Prox cards are a very popular fob type and are sometimes called 26-bit prox, 125khz card, or proximity fobs. It is advisable to have an extra key fob in your vehicle in the event that one is stolen or lost. It's convenient and cost-effective to program a third keyfob by yourself. It is important to note that the procedure differs from manufacturer to manufacturer and may not be straightforward. It may take some digging to discover the correct instructions and steps, but it's well worth it to get a reliable key fob to help you get to your destination safely. How to open the keyfob Nothing is more frustrating than hitting the unlock button on your Mazda key fob and finding that it's not working. A dead key fob can disrupt your plans, whether you're getting ready to go to work or coming home after an having a fun day at EAA Airventure. Luckily, replacing the battery on your key fob is easy and can be accomplished at home with a few tools. The service team at Holiday Mazda has put together this guide to help you to open the key fob and replace the battery. To begin, press the button for the auxiliary key on the back of your key fob to remove the auxiliary key made of metal. After the key is removed, you will see an opening on either side of the case. Gently pry the case open with a tape-wrapped screwdriver. It should come apart easily without damaging the rubber ring beneath that the battery rests on. Once the battery has been removed, take it off and place it somewhere you'll never forget. Then, place the new battery in its place, ensuring that the positive (+) side of the battery is facing upwards. Close the case when the new battery is installed, ensuring that both sides snap into place. Now you are able to use your Mazda keyfob to access your Mazda. What's the battery in a key fob? Most key fobs use tiny, coin-shaped batteries referred to as button cells. These batteries are easily available at general stores, home improvement stores, and certain auto parts stores. It is crucial to choose the correct size battery for your keyfob. Different battery sizes have different discharge characteristics that can affect how your keyfob functions. You can usually tell when the battery in your key fob has died by pressing the buttons and watching the LED light. If the LED light does not turn on, it means that the battery is dying and needs to be replaced. You can also check the battery with a voltmeter to see what voltage it's running at. A fully charged key fob battery should read around 3 Volts. If the battery is less than 3 Volts it should be replaced. To replace the battery, first open the key fob. Find the notch which divides the two halves. You can use your finger, a screwdriver or a knife to push the two halves. After the two halves have been separated, loosen the screw that holds the key fob at the back. Place the screw in a secure location such as a resealable container or bag to avoid losing it. How to replace the battery in the key fob Key fobs are attached to the key ring. It has buttons that can be used to lock or unlock your car and even remotely start it (one of their many hidden uses). The fob transmits an electronic signal that allows the car to accomplish this. However the signals are powered by battery power. Your Mazda won't be able to do anything when the battery is dead. This can be a real bummer. Fortunately, it's pretty easy to replace the battery with the form of a key fob. The first step is to unlock the key fob by pressing the screwdriver's tip into the seam where the two halves snap together. There is usually a notch in this seam that makes prying the two halves apart a lot easier. After opening the case, gently pull the key blade to let go of the old battery. Insert the new CR2025 into the case, making sure the plus side is up. Once the new battery is installed, replace the black cover piece and slide the blade into position. It is a simple and easy process you can perform at home in Springfield. The steps will differ based on the model and the type of key fob you have. The staff at Eich is always on hand to answer any questions you might have.