How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea always to keep an extra key at hand no matter if you've dropped your keyfob or it stopped working. This article will explain everything you should be aware of changing, adding, and reprogramming your Mazda 3 key fobs.
A word of caution Certain keys need to be programmed by a professional locksmith or dealer, whereas others do not. Use only genuine Mazda replacements to replace your key fob.
How do I add an extra key
If you're unable to find a spare key from the dealer when you purchase your Mazda 3 or accidentally break the one you have but don't worry, there's still the option of adding another key. You'll need the flathead screwdriver, as well as a new CR2025 battery. Once you've got the tools and are ready to open the key fob and swap the battery. Locate the key release auxiliary. The button is located on the underside the metal portion. It's easy to find. When you press the button, the cover should be removed immediately. Then, put the screwdriver's head in the notch at the top or the space and remove the metal part.
Insert your spare key or a new one into the slot following the removal of the auxiliary key. Set the ignition to ON and wait for about five seconds before turning it to off. This will allow the system to recognize the new key and start your vehicle in the future.
It is only possible to program three keys on your Mazda 3. You don't want to have to utilize more than two key fobs to start your vehicle. This is a safety measure to stop anyone who is not authorized from activating your keys and launching your car.
How do I reprogram a spare key
It's smart to know how to reprogram an extra key in the event that your original key is lost or stolen. This will stop unauthorized persons from taking your car and then starting it. This will work with any Mazda. You will need two keys that are working to begin the reprogramming process. If you don't own two keys that function it's recommended to take your Mazda to the dealer to have this done.
Begin by getting into your driver's seat, and close the door, except for the one that's already opened. Set the ignition to ON and insert the initial working key. Wait for five seconds, then take the key out and repeat the procedure with the second key.
After you've programmed your new key, you'll have three working keys that you can use to start your vehicle in the future. Test each key to make sure they're working correctly before placing them away.
It is advisable to purchase a spare Mazda 3 remote, especially when your car is susceptible to issues. You can buy one online or in your local auto store. Make sure you look up reviews before you purchase to ensure that you don't get one that's not compatible with your vehicle.
How do I change the battery on a spare key?
It's awful to discover that the key fob you used to use has gone out, and you are unable to unlock your vehicle. It's easy to replace the battery yourself and save money at the dealership.
Press the auxiliary button on the back of the keyfob. This will release the metal key and reveal an opening on each side of the case. Insert the flathead screwdriver into one of these slots. Then, gently remove the two sides of the case. After the battery is fully exposed, take it out of the case and put it in a spot where you'll never forget it.
Make sure you have a replacement battery before you begin. https://www.thekeylab.co.uk/mazda-car-keys/ can be bought at any retailer that sells batteries or from a Mazda dealer in Winter Garden. Using the correct type of battery will ensure that your key fob is working correctly.
Replace the cap of the battery and then put in the new battery. Be careful not to damage the rubber ring on which the battery rests. The two halves should be pressed together until you hear a click.
How do I reset the system's Keyless Entry System
The Mazda 3 key fob is not just a piece of equipment for convenience. It's also a security measure. If you lose your key, or have it stolen, the car will not start even if it has the spare key fob. The key fob should be reprogrammed by a dealer to make it work again. This could be a costly and time-consuming process, so it's a good idea to understand how to reset the system yourself.
Remove the battery from the system for 15 minutes. This will remove any remaining electrical current from the computer on board. Then, disconnect the LF -ECU and demand switch connectors. Check continuity between the following terminals.
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Put the key in the slot, and switch on the ignition. The key should remain in the ignition for around five seconds and then turn off. The key's information has been transferred to the computer of your vehicle and the new fob can start your vehicle. You can program up to three fobs but you should only use one at a time. This will stop unauthorised people from copying the key and gaining access to your car. You can purchase a new keyfob from the internet, however it still needs to be cut and programmed by an authorized dealer.
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