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How to Add, mazda 3 Key Change, and Reprogram a Mazda 3 Spare Key
If you've dropped your key fob on the floor or it simply stopped working, it's best to have an extra key available. This article will go over everything you must be aware of when adding, changing, or changing 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. Make sure you use only official Mazda replacements to replace your key fob.
How do you add an additional key
If you're not fortunate enough to receive a spare keys from the dealer when you buy your Mazda 3 or accidentally break the one you have do not fret -- there's a way to add another key. You'll need to use a flathead screwdriver and the CR2025 replacement battery. Once you have these items and are ready to open up the key fob and replace the battery. Find the auxiliary key release. It's located underneath the metal part and is easy to locate. The back cover should come off the moment you press the button. Next, insert the head of the screwdriver into the notch or spacing at the top of the metal part and pull it away.
After the auxiliary keys are removed, insert the new or spare key into the slot. Set the ignition to ON, and wait for about five seconds before turning it to off. This will add the new key's information to the system and allow it to start your vehicle in the future.
You can only program three keys to your Mazda 3. You don't want to utilize more than two keys to start your vehicle. This is a safeguard to prevent unauthorized users from activating your key fobs and starting your vehicle.
How to Reprogram a spare key
It's smart to be aware of how to reprogram a spare key in the event that your original key is lost or stolen. This will keep unauthorised persons from starting your car or taking it. This method should work on any Mazda however, you'll require two working keys to begin the reprogramming. If you don't have two keys that work then it's best to bring your Mazda to a dealer to get this done.
Begin by getting in your driver's seat, and shutting the door, excluding for the one that's opened. Set the ignition to ON and insert the first functioning key. After five seconds, take the key out and repeat the procedure with the second working key.
Once you've programmed your new key, you'll have three working keys you can use to start your vehicle in the future. Before placing each key in storage, make sure that it's functioning properly.
It's a good idea purchase a spare Mazda 3 key fob, especially if your car is one who is prone to losing keys or has other issues with it. It's possible to find one on the internet or at a local automotive store, but make sure to read the reviews before buying so you aren't purchasing a key fob that's not compatible with your car.
How do I change the battery on a spare key
It's a nightmare to discover that your key fob has died and you're in a position to not unlock your vehicle. Luckily, it's easy to replace the battery and save some cash at the dealership.
Press the auxiliary button on the back of the keyfob. This will take out the key's metal cover and reveal a slot on each side of the case. The flathead should be inserted into one of these slots and then gently pry the two halves apart. When the battery is completely exposed, remove it and place it in a safe place somewhere you won't forget it.
Be sure to bring a replacement battery prior to starting. They can be bought at any store that sells batteries or from a Mazda dealer in Winter Garden. Using the right type of battery will ensure that your key fob is working effectively.
Replace the cap on the battery and then insert the new battery. Be careful not to damage the rubber ring on which the battery rests. Finally press the two halves of the key fob until you hear the sound of a click.
How do I reset the Keyless Entry System
The Mazda 3 key fob is not just a convenient feature. It also serves as an important security feature. The car will not start if the key is stolen or lost even if you have a spare fob. This is because the fob that you have to be reprogrammed at the dealership in order to work properly. It can be a costly and stressful experience It's a good idea to learn how to reset the system yourself.
Remove the battery from the system for 15 minutes. This will clear any residual electrical current from the computer on board. Next, disconnect both the LF-ECU connector and the demand switch connectors. After that, test for continuity between the following terminals:
Insert the key into the slot and turn on the ignition. Leave the key in for about five seconds and then switch off. The key's information will be transferred to your vehicle's computer and the new fob will be able start your car in the future. You can program as many fobs you need however only one must be used at a given time. This will stop unauthorized individuals from stealing your key and getting access to your car. You can buy a new keyfob from the internet, however it will still need to be cut and programmed by a dealer.
