Mazda Key Fob Replacement If your key fob doesn't work, you may not be able access your vehicle Thankfully, a locksmith can solve the issue quickly and at a low cost It's not expensive to replace the battery on your Mazda keyfob The owner's guide should include instructions, or you can find videos online on how to do it yourself How do I open a Mazda Key Fob If you're Mazda key fob isn't functioning properly or the indicator light for operation has been off for a while, it might be time to replace the battery This is one of the easiest tasks you can do at home using a few simple tools The Mazda key fob uses the CR2025 battery which can be found at most retail stores as well as websites that sell batteries They are priced at around 4 for a box of four, and are available in different sizes Open the Mazda key fob using the flathead screwdriver that is taped Press the accessory key button on the back of the fob, to remove the auxiliary metal key, then use your screwdriver to remove the case from both sides Be sure to work in a slow manner so that you don't cause damage to the case, and to keep the screwdriver's tip from being scratched Once you've opened the key fob case, take out the old battery Be sure to inspect the rubber ring on which the battery is positioned to ensure that it is in good working order Insert your new CR2025 in the correct direction, making sure that the positive side is facing you Replace the battery, then cover the screwdriver After that, 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 completely gone out of service This can cause the vehicle's ability to start and unlock the doors to be impaired This could be extremely dangerous especially if you've got small children in the car The battery is at the bottom of the key fob It's usually a little larger than a coin, and has two terminals There will be two a red one marked + and a black one that is marked - Use https//wwwthekeylabcouk/mazda-car-keys/ taped flathead screwdriver first to open the case on one side, and then the other side Don't force the case to open or you risk damaging the internal components Once the case is removed, you can see an incredibly small rubber ring the battery sits on Be careful not to damage the ring, since the code number is stamped on it Keep the code number somewhere safe, not in your vehicle, in case you need it in the future Reassemble everything once you've changed the battery Reattach the case, and be sure to insert both sides of the case into the key fob until you hear it click Ignition Replacement In general it's fairly simple to replace the battery in a car key fob and you can do it at home without needing an expert A lot of experts recommend having an extra battery in your home You can get them in most hardware stores This will save you from the expense of replacing a fob, which could be as high as 500 for luxury cars and 250 for the most affordable cars But, if the key is stuck in the ignition, it may be more difficult to remove Modern ignitions are sophisticated systems that require a sequence of movements to function effectively If something disrupts this process, for instance a broken key or ignition lock pin, the ignition may jam and the key may get stuck inside If your ignition is damaged, you'll require it to be repaired or replaced This can be a complicated task, and it will depend on the make and model of your car as well as the manufacturer Some dealerships provide this service, however it's generally more expensive than hiring an independent mechanic You'll have to pay a locksmith the programming of the new key, as well as the cost to replace or repair the ignition This isn't possible to do at home unless the car has an ignition system that is basic Key Blanks The key fob can do more than just lock the car and start it It also includes features like rolling down the window and summoning the car when it's in a difficult spot and auto-parking This is why they're so useful but they can be frustrating when you lose or break one The positive side is that many modern key fobs are fairly easy to replace It's often possible to do it yourself using a screwdriver, a plier and an additional battery Certain key fobs send out a warning when their lifespan is nearing its expiration date Experts suggest keeping an extra battery as well as a small screwdriver in your glove box or in the center console in case you have to replace the original one Another option is to call locksmiths who can make you a new key The locksmith might require a working key in order to program the new remote, so find one that asks for evidence prior to starting Also, you could look to purchase a new fob on the internet from a trusted seller If you have a key fob that does not work, your car insurance might be able to cover it However, going this route means you'll have to pay for a new fob and also your car's deductible, which can be costly when the fob cost hundreds of dollars