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How to Add, Change, and Reprogram a Mazda 3 Spare Key
Whether you dropped your key fob on the floor or it simply stopped working, it’s recommended to keep an extra key available. This article will go over everything you must learn about adding, changing, and changing your Mazda 3 key fobs.
A word of caution Some keys require programming by a professional locksmith or dealer, whereas others don’t. Be sure to only make use of official Mazda replacements for your key fob.
How to Add a Spare Key
You can add an additional key in case you don’t have a spare key, or when you accidentally damage your current one. You’ll need the flathead screwdriver, as well as an CR2025 battery. Once you’ve got these items then it’s time to access the key fob and replace the battery. First, locate the button that allows you to release the key. It’s located on the underside the metal portion. It’s easy to locate. Once you press the button, the cover will fall off instantly. Then, you can insert the screwdriver’s head into the notch at the top or into 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. Switch the ignition on and wait for approximately five seconds, then set it to off. This will allow the system to recognize the new key and begin your vehicle in the future.
You can only program three keys on your Mazda 3. The one thing you don’t want is to have more than two working key fobs and not being capable of getting your vehicle started. This is a security measure designed to prevent unauthorised users, like valet drivers who are not authorized to use your key and thereby launching your vehicle.
How do you reprogram a spare key
If you have a spare key, it’s a good idea to be aware of how to reprogram it in the event that your original key gets stolen or lost. This will stop unauthorized persons from starting your vehicle or taking it. This procedure should work with any Mazda, though you’ll need two working keys to start the reprogramming process. If you don’t have two working keys, you should take your mazda 2 key fob replacement to a dealer to have this done.
Start by stepping into driver’s seat and mazda 3 Key fob shutting all doors, with the exception of the one that is open. Place the working key in the slot, and then set the ignition to ON. Take five seconds before removing the key. Repeat the process with the second key.
After you’ve programmed your new key, you’ll have three working keys that you can use to start your car in the future. Before placing each key in storage, make sure it’s working properly.
It’s a good idea buy a spare Mazda 3 key fob, especially if you’re a driver who is prone to losing keys or has other issues with it. You can purchase one online or at your local auto store, but make sure to read reviews before buying so that you can avoid getting the wrong key fob compatible with your vehicle.
How to change the Battery on a Spare Key
It’s depressing to find out that your key fob is dead and you’re unable to unlock your vehicle. It’s not a problem to replace the battery and save yourself some cash at the dealership.
The first step is to press the auxiliary key button located on the back of the key fob. This will detach the key’s metal cover and reveal two slots on the opposite side of the case. Insert the flathead screwdriver into one of these slots and then gently remove the two parts of the case. Once the battery has been fully exposed, remove the case and put it in a spot where you’ll never forget about it.
Make sure you have an extra battery in place prior to beginning. They can be bought at any retailer that sells batteries or from a Mazda dealer in Winter Garden. The correct type of battery is essential to ensure that your key fob functions correctly.
Replace the cap of the battery and then replace the battery. Be careful not to damage the small rubber ring the battery is placed on. Finally, press the two halves of the key fob together until you hear a click.
How to Reset the Keyless Entry System
The Mazda 3 key fob is not just a piece of equipment for convenience. It’s also an element of security. If you lose your key or had it stolen the car will not start even if it has the spare key fob. The key fob needs to be reprogrammed by the dealer to allow it to work again. This can be a costly and frustrating experience, so it’s a good idea to understand how to reset the system yourself.
To reset the system, disconnect the battery for 15 minutes. This will eliminate any remaining electrical current from the computer on board. Then, disconnect both LF-ECU and demand switch connectors. Verify that the connections are in good order between the terminals.
Put the key in the slot, then turn the ignition ON. Keep the key in place for about five seconds, then turn it off. The information from the key will be transferred to your vehicle’s computer and the new fob will be able to start your vehicle in the future. You can program as many fobs as want however only one must be utilized at any given time. This stops unauthorized individuals from copying your key and getting ahold of your car. You can purchase a brand new keyfob from the internet, however it will still need to be cut and programmed by an authorized dealer.