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How to Add, Change, and Reprogram a Mazda 3 Spare Key

It's a good idea always to keep an extra key in your pocket, whether you dropped your keyfob or it stopped working. This article will explain everything you need to be aware of when adding, changing, and reprogramming your Mazda 3 key fobs.

Be aware that some keys require programming from a professional locksmith, while others don't. Make sure you use only official Mazda replacements to replace your key fob.

How do I add a spare key?

If you're unable to find a spare key from the dealership when you purchase your Mazda 3 or accidentally break the one you have but don't worry, there is still a way to add another key. To do this, you'll need a small screwdriver with a flat head and an CR2025 battery that's new. Once you've got all the equipment and tools, Lost Mazda Keys you're ready to open the key fob. Find the key release auxiliary. It's located underneath the metal part and is easy to locate. Once you hit the button, the cover should fall off right away. Then, place the screwdriver's tip into the notch on top or in the space, and remove the metal part.

Insert the spare or new key into the slot after you have removed the auxiliary key. Set the ignition ON and wait for approximately five seconds before turning it to off. This will allow the system to recognize the new mazda key key and start your vehicle in the future.

It is important to remember that you can only program up to three keys on your Mazda 3. You don't want to utilize more than two keys to start your car. This is a safety measure designed to prevent unauthorised users, like valet drivers, from activating your key and thereby launching your vehicle.

How to Reprogram a spare key

It's a smart idea be aware of how to reprogram an extra key in the event that the original key is Lost Mazda Keys or stolen. This will prevent unauthorised persons from getting into your car and causing damage to it. This should work with any Mazda. You'll require two keys that are working to begin the reprogramming process. If you don't have two working keys, you'll need to take your vehicle to a dealership to complete the process.

Begin by getting in your driver's seat, and closing the door, except for the one that's already opened. Place the first working key into the slot, then set the ignition to the ON position. After five seconds, remove the key. Repeat the process with the second key.

After you finish programming your new key, you'll have 3 keys that will work to start your car in the near future. Check each key to make sure that they're working properly before putting them away.

You should think about purchasing an extra Mazda 3 remote, especially when your car is susceptible to problems. You can purchase one online or at your local automotive retailer, but make sure to read the reviews before buying so that you aren't buying a key fob that's not compatible with your car.

How do you change the battery on a spare key

It's very frustrating to discover that your key fob has died, and you are unable to unlock your vehicle. It's easy to change the battery yourself and save money at the dealership.

Press the auxiliary key button located at the back of the keyfob. This will take out the key made of metal and reveal the slots on both sides of the case. The flathead should be inserted into one of these slots and then gently push the two halves of the case apart. When the battery is completely exposed, take it out and place the case somewhere you won't forget it.

Be sure to have an extra battery in place before you start. They can be found at any store that sells batteries or at a Mazda dealer close to Winter Garden. Choosing the correct battery will ensure that your key fob functions perfectly.

Next, put the new battery in place and replace the cap on the battery. Be careful not to damage the rubber ring that holds the battery. The two halves should be pressed together until you hear the click.

How can I reset the Keyless Entry System

The key fob inside your Mazda 3 is not only an extra convenience, but also an important security feature. The car won't start if your key is stolen or lost, even if you've got an extra key fob. The key fob has to be reset by the dealer to allow it to work again. This can be a painful and costly experience. Therefore, it's best to understand how you can reset the system.

To reset the system, remove the battery for around 15 minutes. This will eliminate any remaining electricity from the on-board computer. Next, disconnect the LF-ECU and demand switch connectors. Check for continuity between the following terminals:

Insert the key into the slot, then turn the ignition ON. Keep the key in place for about five seconds, then turn it off. The key's information is added to the computer in your car and the new fob will start your vehicle. You can program as many fobs you need but only one can be used at a particular time. This prevents unauthorized people from copying the key and getting ahold of your car. You can purchase a replacement keyfob online, however it must be programmed and cut by a dealer.