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mazda 2 key fob replacement If your key fob doesn't work, you might not be able get into your vehicle. Locksmiths can quickly and cheaply fix the issue. It's not too expensive to replace the battery in your Mazda keyfob. You can find the necessary instructions in your owner's manual, or online videos on how to do it. How to open the Key Fob of a Mazda Key Fob If you've noticed that your Mazda key fob isn't turning on as easily, or its operation indicator light is no longer flashing, then you might need a replacement battery. This is one of the easiest tasks to do at home with just a few simple tools. The Mazda key fob utilizes the CR2025 battery, which you can find at most retail stores and online platforms that sell batteries. They cost around $4 for a set of four and are offered in a variety of sizes. Open the Mazda key fob by using a taped flathead screwdriver. Press the button for the auxiliary on the back of the fob to remove the metal auxiliary keys, then use the screwdrivers on both sides open the case. Be sure to work in a slow manner to avoid damage to the case and to prevent the screwdriver's blade from getting scratched. Remove the battery after you have opened the key fob. Make sure the rubber ring the battery is mounted to is in good condition. Then, insert your new CR2025 battery, making sure the positive side is facing up towards you. Replace the case by re-covering the screwdriver. Then put everything back together according to the Mazda CX-5 owner's manual. Battery Replacement Mazda key fobs are easy to replace. However it is recommended to do this before the battery has died. Otherwise, it can cause the car to lose its ability to unlock doors or start the engine. This could be risky particularly if you have children who are in the vehicle. You'll need to locate the battery which is located in the lower section of the key fob case. It's usually a little larger than a coin and comes with two terminals. There will be two: a red one marked (+) and one black one marked (–). Use a flathead screwdriver taped first to open the case on one side and then the other. Be careful not to open the case too much, or you could damage the internal components. You can see the rubber ring where the battery is located after the case is removed. Be careful not to damage this ring, as the code number is stamped on it. Keep the code number somewhere secure, and not in your car, in case you need it in the future. After replacing the battery then put everything back together. Reattach the case and be sure to insert both sides of the case into the key fob until you hear it click. Ignition Replacement It is possible to replace car key fob batteries at home, without the need of an expert. Many experts suggest keeping an extra battery at home. You can purchase them at most hardware shops. This will save you the expense of purchasing a replacement fob, which could be up to $500 for luxury models and $250 for the more affordable cars. But, if the key is stuck in the ignition, it can be much more difficult to take it out. Modern ignitions are complicated systems that require a series of movements to function effectively. If something interrupts the process, like a broken key or an ignition lock pin, the ignition could jam and the key can be trapped inside. If your ignition is damaged, you will need it to be rebuilt or replaced. This is a complex job that depends on the model and the make of your vehicle. Some dealerships are willing to do this, but it is generally more expensive than hiring an independent mechanic. You'll need to pay a locksmith the programming of the new key, as well as the cost to replace or repair the ignition. If your car doesn't have a basic ignition system this will be impossible to accomplish at home. Key Blanks The key fob can do more than lock and start the car. It also has features like rolling down the windows and summoning the car when it's stuck in a tight spot and auto-parking. This is why they're useful but they can be a hassle if you lose or break one. The positive side is that many modern key fobs are fairly easy to replace. You can usually do it yourself using a screwdriver, and a new cell. Some key fobs emit a warning when their lifespan is nearing the expiration date. Experts suggest keeping an extra battery and small screwdriver in the glove box or center console in case you need to replace your old one. A locksmith can also make you a new key. They may require a working key from your vehicle to program the new fob, so it's essential to find one who requires proof of ownership or registration prior to when they begin. Additionally, you can try to buy a new fob online from a reputable seller. The insurance of your car may cover a key fob in case it's not working. However, going this route means that you'll need to pay for a new fob as well as your car's deductible which can be expensive when the fob cost hundreds of dollars.