How to Fix Common Mazda 3 Key Problems The Mazda 3 is an elegant compact car with a classy interior and agile handling It is also a great bargain compared to other compacts available It's a major pain to lose keys It's not just that you'll have to pay the dealership to tow your car and reprogramme your keys however, it can also cost you money to replace the spare keys The key cannot lock or unlock the door It's risky to lock the doors without locking them, especially when the vehicle is moving If the door is not locked while the vehicle is moving, passengers may fall out or sustain injuries Keep https//wwwthekeylabcouk/mazda-car-keys/ out of reach of children to avoid this problem Children might find them appealing and may want to play with them, which can cause the power windows or other controls to be activated and even make the vehicle move If you notice the key fob won't lock or unlock the doors, the battery could be dead The button-cell battery inside the keyfob has a limited time of life, which is why it is important to replace it on a regular basis A high-quality battery will last between two and four years When replacing the battery, it's important to choose a replacement battery with the same voltage and size as the original A key pairing issue could also be the cause of your key fob not working It could be that the key fob wasn't paired properly with the car when it was first purchased In this scenario, it will need to be reset by the dealer Fortunately it can be done in under a minute The dealer can also reset any remaining electric current in the onboard computer But, this will not fix the key fob's ability to lock or unlock the doors Dead coin battery If your key fob won't be activating or unlocking your car, it may be because the battery is dead This is a common issue however, it can be fixed You can replace the battery on your own, saving having to visit a dealership The procedure is simple and requires just some tools Press the auxiliary button on the back of the Mazda flip key This will allow you to remove the metal auxiliary keys There's an opening on both sides of the case once the metal auxiliary is removed Start with one side of the case and move around using a tape-wrapped screwdriver Gently pry the two halves of the case apart and set them aside You can now replace the key fob's battery Be careful not to damage the small rubber ring the battery sits on After the battery has been replaced, you can put it back into the case and take pleasure in your new key fob You can locate an alternative battery in most stores that sell batteries Search for a CR2025 battery These batteries are often used in watches and calculators and can be found in auto parts stores or online It is simple and quick to change the battery in your Mazda 3 This will save you money by avoiding having to visit a dealership Key pairing issue If you've been driving your Mazda 3 for a long period of time, and then it suddenly stopped working, it may be a problem in the remote keyless system receiver module This is more likely to occur in the event that the internal chip on the key fob is damaged This may be due to a number of causes, such as an accidental drop of the key or exposure to water The key fob's electronic components are protected by rubber seals, so a splash of rain is unlikely to cause harm Submerging the key fob into the ocean or pool water can be a serious problem because the salty water is extremely conductive and could damage the electronic components If your key fob doesn't working, it's likely that you're in need of an upgrade to the battery A quick search on the web will reveal that there are numerous third-party replacement batteries It's important to keep in mind that these batteries may not work with your Mazda 3 It's a good idea buy one from a dealer and ensure it is certain to work with your vehicle After replacing the battery the key fob will be functioning again If the remote does not respond when you press the lock button, it's likely that the key has been stuck in power saving mode Press the lock button five times and hold it for a while until the red light blinks Reprogramming the key Mazda's keyless entry system enables you to unlock the car and then start it without the requirement of a regular key This is a wonderful convenience, but the process of programming the remote or key might be complicated for some people This also requires a computer that is available only to the auto locksmith or dealer The machine is connected to the vehicle's computer, and it starts the programming process for an entirely new remote or key The first step is to have at least two working keys for the Mazda The next step is changing the program of a spare one Initially, the functions of the new FOB are turned off to protect the vehicle from theft After you've reprogrammed the new key, these functions will be activated once more After that, you will be able to use the new key to open the doors and then start the engine You should test it first to verify that it functions Keep a spare set of keys if you're worried about losing your keys Incorporating a spare car key into your Mazda is a straightforward procedure You can save money by following these easy steps This will save you money on towing costs and an extra key