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How to Add, Change, and Reprogram a Mazda 3 Spare Key
If you've dropped your key fob on the ground or it has stopped working, it's recommended to keep an extra key in your pocket. This article will tell you how to add, change, and reprogramme your Mazda Extra Key 3 keyfobs.
A word of caution Certain keys require programming by a professional locksmith or dealer, while others do not. Only use authentic Mazda replacements to replace 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 if you accidentally break your current one. You'll need the flathead screwdriver, as well as a CR2025 new battery. Once you've got these items and tools, you're ready to open the key fob. Find the key release auxiliary. It's on the underside of the metal part and is easy to find. When you press the button, the back cover should fall off right away. Then, insert the screwdriver's head in the notch at the top or in the space, and pull the metal piece off.
Once the auxiliary key is removed, insert your new or spare key into the slot. Set the ignition to ON and wait for around five seconds before setting it to OFF. This will register the new information on the key to the system and allow it to 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 key fobs in order to start your car. This is a security measure designed to stop unauthorized users, like valet drivers from activating your key and starting your car.
How do I reprogram a spare key
It's smart to know how you can reprogram an extra key in the event that your original key becomes lost or stolen. This will stop unauthorized persons from abusing your vehicle and re-starting it. This will work with any Mazda. You'll require two keys that are functioning for the reprogramming to begin. If you don't own two keys that function then it's best to bring your mazda chip key replacement to a dealer to have this completed.
Begin by stepping into your driver's seat and close the door, with the exception for the one that's been opened. Place the first working key in the slot, then turn the ignition to ON. After five seconds, take the key out and repeat the process with a second key.
After you've programmed your new key, you should have 3 keys that will allow you to start your car in the future. Test each key to make sure that they're operating correctly before placing them away.
You should think about buying an extra Mazda 3 remote, especially in the event that your vehicle is prone to issues. You can find one online or at your local auto store, but make sure to read the reviews before buying so you can avoid getting a key fob that's not compatible with your vehicle.
How to change the Battery on a spare Key
It's depressing to find out that your key fob has died and you're not able to unlock your vehicle. It's easy to replace 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 metal key that is used as an auxiliary key, and expose an opening on both sides of the case. Place the flathead in one of these slots and gently pry the two halves apart. When the battery is fully exposed, take it out of the case and place it in a spot where you'll never forget it.
Before you begin, be sure that you have a brand new replacement battery. These batteries can be purchased at any store that sells batteries or from a mazda card key dealer in Winter Garden. Choosing the right battery will ensure that your key fob operates correctly.
Replace the cap of the battery and then put in the new battery. Be careful not to scratch the small rubber ring the battery rests on. The two halves should be pressed together until you hear a click.
How can I reset the Keyless Entry System
The mazda premacy key replacement 3 key fob is not just a piece of equipment for convenience. It also serves as an important security feature. The car won't start if the key is lost or stolen even if you have a spare fob. This is because the fob that you have to be reprogrammed at the dealership to work properly. This could be a costly and stressful experience therefore it's a great idea to know how to reset the system yourself.
To reset the system, disconnect the battery for about 15 minutes. This will remove any residual electricity in the on-board computer. Next, disconnect both the LF-ECU connector as well as the demand switch connectors. Then, check continuity between the following terminals:
Place the key into the slot and turn on the ignition. Keep the key in place for about five seconds, then turn off. The key's information will be added to your vehicle's computer and the new fob will be able to start your car in the future. You can program up to three fobs however, you must only use one at each time. This will stop unauthorized individuals from stealing your keys and getting access to your car. You can purchase a replacement keyfob from the internet, however it still needs to be cut and programmed by a dealer.
