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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. Certain of them enhance the safety or performance of your vehicle, while others make driving around East Stroudsburg, Brodheadsville, and Saylorsville more enjoyable. Remote start is among the most convenient features. If you're having trouble starting your car, it may be time to replace the battery in your keyfob. What is a keyfob? A key fob is a remote control that allows you to unlock and start your vehicle without the need to insert a key made of metal into the ignition. It is a small, lightweight device with a microchip. It stores information such as an unique ID as well as an antenna that can send and receive signals. The microchip communicates with the receiver in your car using radio frequency. These signals are part of near-field communication (NFC) which allows payments that are not made using contactless technology, as well as other features requiring proximity. Depending on the key fob's design it will have different capabilities. Certain systems, for instance keep track of who came into the building and when. This can be extremely useful in preventing crime. There are also security measures that could be added, like encrypted keys that make it more difficult to copy them. Prox cards are a well-known fob type, and are often called 125khz cards, 26-bit prox, or proximity fobs. It's a good idea to have an additional key fob for your vehicle in the event that one is stolen or lost. Some automakers allow you to program another key fob, which is convenient and cost-effective. However, it's important to remember that the procedure can differ between manufacturers and isn't always straightforward. It could take some time to locate the right instructions and steps, but it's well worth it to get a reliable key fob that helps you get to your destination safely. How to open a key fob It's a pain to discover that your Mazda key fob isn't unlocking. 2011 mazda 3 key fob doesn't matter if you're getting ready for your workday or coming home from an adventurous afternoon at EAA Airventure, a dead key fob battery could put a damper on your plans. It's simple to replace the batteries on your key fob at home by using a couple of simple tools. The Service team at Holiday Mazda has put together this guide to help you to open the key fob, and then replace the battery. To begin, press the auxiliary key button on the back of the key fob to detach the auxiliary key made of metal. After removing the auxiliary key, you will find the slots on both sides of the case. The case should be opened by using a tape-wrapped screwdriver. It should break easily without damaging the rubber ring beneath the battery. When the battery is exposed remove the old one out and put it away in a place where you will not forget it. Set the new battery in its original position, ensuring that the positive (+ side) of the battery faces up. Once the new battery is placed in its place, close the case, making sure that both sides snap into the correct position. Now you're ready to use your Mazda key fob once more! What's the battery inside a key fob? The majority of key fobs are powered by small, coin-shaped batteries known as button cells. They are readily available at home improvement stores, and some auto parts stores. It is crucial to select the correct battery size for your key fob because various sizes of batteries have different discharge characteristics that can influence how well your key fob functions. The majority times you can tell the battery of your fob is dead by pressing any buttons on it, and then looking at the LED light that is illuminated. If the LED light does not turn on, the battery is dead. It is time to get it replaced. You can also use a voltmeter to the battery to determine its voltage. A fully charged key fob battery should read about 3 Volts. If the battery reads less than 3 Volts it should be replaced. To replace the battery, you must first unlock your key fob. Find the notch which separates the two halves. You could use a screwdriver, an ax, or your finger to push into this notch to wedge the two halves apart. When the halves are separated then look for a screw holding on the back of the key fob, and take it off. Store the screw in a secure spot such as a resealable mug or bag to avoid losing it. How do you replace the battery in a key fob A key fob is a tiny device that can be attached to the ring of your keys with buttons that allow you to lock or unlock your car and even start it remotely (one of many possible secret uses for these devices). The fob sends a wireless signal to the car, which allows it to do this, but that signals run on batteries. If the battery is dead, your Mazda won't be able to perform any function which can be a major bummer. Fortunately, it's quite easy to replace the battery using a key fob. The first step to open the key fob is to push the tip of the screwdriver into the seam where the two halves snap together. This seam is often an notch that makes it easier to pry the halves apart. After opening the case, gently pull on the key blade to remove the old battery. Push the new CR2025 into the case, making sure the plus side is on the right. Once the new battery is in place, slide the black cover piece back on and then slide the key blade into position. It is a simple and quick process that you could do at home in Springfield. The steps will differ depending on the model and the type of key fob you have. If you have any questions our team at Eich Mazda is always available to help!