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 the keyfob or it has stopped working. This article will cover everything you must know about adding, changing, and changing the programming of your Mazda 3 key fobs.
A word of warning Certain keys require programming by a locksmith professional or dealer, whereas others don't. Use only genuine Mazda replacements to replace your key fob.
How do you add an additional key
If you're not lucky enough to receive a spare key from the dealership when you purchase your Mazda 3 or accidentally break the one you have do not fret -- there's still an option to make another key. You'll need to use a flathead screwdriver and the CR2025 replacement battery. Once you have the items and tools, you're ready to open the key fob. First, locate the key release button for the auxiliary key. It's located on the bottom of the metal portion. It's easy to locate. The cover that covers the back should come off as soon as you press the button. Then, you can insert the screwdriver's tip into the notch at the top or the space, and take the metal part away.
Insert https://www.thekeylab.co.uk/mazda-car-keys/ or new key into the slot after taking out the auxiliary key. Turn on the ignition and wait for five seconds, then set 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 into your Mazda 3. You don't want to use more than two keys to start your vehicle. This is a security precaution designed to prevent unauthorized users, such as valet drivers from activating your key and starting your vehicle.
How to Reprogram a spare key
If you have a spare key, it's a good idea to know how to program it in the event the original key you had is stolen or lost. This will stop unauthorized persons from opening your car or taking it. This method should work on any Mazda, though you'll need two keys working to begin the reprogramming process. If you don't own two working keys, you'll have to bring your vehicle to the dealer to get it done.
Start by getting into the driver's seat, close all the doors, except the one that is open. Set the ignition to ON and then insert the first working key. Wait five seconds before removing the key. Repeat with the second key.
After you finish programming your new key, you'll have three keys that work to start your vehicle in the future. Before placing each key in storage, make sure it's working properly.
You should think about purchasing an extra Mazda 3 remote, especially in cases where your car is prone to problems. You can buy one online or at a local automotive retailer, but make sure to read reviews before buying so you can avoid getting an item that isn't compatible with your vehicle.
How do I change the battery using a spare key
It's awful to discover that your key fob has died and you're in a position to not unlock your car. It's easy to change the battery yourself and save money at the dealer.
The first step is to press the auxiliary key button that is located on the back of the key fob. This will release the metal key that is used as an auxiliary key, and expose an opening on both sides of the case. Press the flathead into one of these slots, and then gently push the two halves apart. When the battery is completely exposed, remove it and put it away somewhere that you won't forget about it.
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Make sure you have an additional battery before you begin. These batteries can be purchased at any store that sells batteries or from a Mazda dealer in Winter Garden. The correct battery is vital to ensure that your keyfob works correctly.
Replace the battery cap 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 the click.
How to Reset the Keyless Entry System
The Mazda 3 key fob is not just a practical feature. It also serves as an important security feature. The car won't start if your key is lost or stolen, even if you've got an extra fob. This is because the key fob has to be reprogrammed at the dealership in order to work properly. It can be a frustrating and expensive ordeal. Therefore, it's best to understand how you can reset the system.
To reset the system, remove the battery for about 15 minutes. This will take out any remaining electricity in the on-board computer. Then, disconnect the LF -ECU and demand switch connectors. Verify the continuity between the next terminals.
Place the key in the slot and turn on the ignition. Leave the key in for about five seconds and then turn it off. The key's information will be added to your vehicle's computer and the new fob will be able start your car in the future. You can program as many fobs as desire however only one must be in use at any particular time. This will stop unauthorised people from copying your key and gaining access to your car. You can purchase a replacement key fob on the internet, but you'll still need to go to an expert locksmith or dealer to have it cut and programmed.
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