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How to Replace a Dead Mazda 5 Key Fob Your Mazda 5 key fob has numerous amazing features. Certain of them boost the safety or performance of your vehicle, while others make driving in East Stroudsburg Brodheadsville and Saylorsville more practical. Remote start is one of the most useful features. If you're having trouble getting your car started it could be time to change the battery in your key fob. What is a key fob? A key fob can be used as remote control to unlock and start your car without the need to insert a metallic ignition key. It is a small, light device that contains a microchip that stores information like an ID number that is unique and an antenna that can send and receive signals. The microchip communicates through radio frequencies with the receiver inside your vehicle. These signals are a form of near-field communications (NFC) which allows for contactless payment, as well as other features that require proximity. Depending on your key fob's model it will come with different capabilities. For instance, certain systems will keep a log of who used the key and when, which is a big help in preventing criminal activity. Security measures can also be added, like encrypted keys which make it more difficult to copy. Prox cards are a popular fob design and are commonly called 125khz prox, 26-bit prox or proximity fobs. It's a good idea to have a spare key fob to your vehicle in case one is stolen or lost. It is convenient and cost-effective to program a third keyfob by yourself. But it's important to be aware that the process can vary by manufacturer and is not always straightforward. G28CarKeys may need to do some research in order to find the correct instructions and steps. However, it is worthwhile to have an authentic key fob to help you reach your destination safely. How to open the keyfob It's frustrating to discover that your Mazda key fob doesn't work. When you're getting ready for your day at the office or returning home after an exciting afternoon at EAA Airventure, a dead key fob battery can hinder your plans. It's easy to change the batteries of your key fob at home using just a few simple 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 backside of your key fob to remove the auxiliary piece of metal. After the key is removed, you will see two slots on the opposite side of the case. The case should be opened with a tape-wrapped screwdriver. It should fall apart easily without harming the rubber ring that the battery is resting on. After the battery is exposed, remove it 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 up. After the battery is placed in its place, close the case ensuring that both sides snap into place. Now you're ready to use your Mazda key fob once more! What is the battery in a key fob? Button cells are the most popular type of battery that is used in key fobs. These batteries are easily available at home improvement centers, and certain auto parts stores. It is important to find the correct battery size for your key fob due to the fact that the different sizes of batteries have varying discharge characteristics, which could impact how well your key fob operates. Most times you can determine whether your fob battery is dead by pressing any button on it and observing the LED light that illuminates. If the light doesn't turn on then the battery is dead. It is time to get it replaced. You can also test the battery using a voltmeter to see what voltage it's running at. A fully charged key fob should show approximately 3 Volts. If the battery is lower than 3 Volts, it must be replaced. To replace the battery, you must first unlock your key fob. Find the notch that divides the two halves. You can use your finger or a screwdriver knife to push the two halves. After the halves have been separated, look for a screw holding in the back of the key fob and loosen it. Store the screw in a secure location such as a resealable container or bag to prevent losing it. How to replace a key fob battery Key fobs are small device that connects to the ring of your keys with buttons that let you lock or unlock your car and even start it remotely (one of many possible secret uses for these devices). The fob transmits an electronic signal to the car that permits it to do this, but that signals run on battery power. Your Mazda will be unable to function should the battery fail. This could be a real bummer. It's simple to replace the battery in the key fob. The first step in opening the key fob is to insert the screwdriver's tip into the seam where the two halves snap together. This seam usually has a notch that allows you to easily pry the two halves apart. After opening the case, gently pull on the key blade to remove the old battery. Place the new CR2025 in the case, making sure the plus side is facing upwards. After the new battery has been installed, replace the black cover piece and slide the blade into position. It's a straightforward and easy process you can perform at your home in Springfield. The steps will differ based on the model and the type of key fob you have. The team at Eich is always there to answer any questions you may have.