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How to Add, Change, and Reprogram a Mazda 3 Spare Key

Whether you dropped your key fob on the ground or it simply stopped working, it's recommended to keep an extra key in your pocket. This article will explain everything you should know about adding, changing, and reprogramming your Mazda 3 key fobs.

A word of warning Certain keys require programming by a locksmith professional or dealer, while other keys don't. Make sure you use only authentic Mazda replacements to replace your key fob.

How do you add an additional key

If you're not lucky enough to get a spare key from the dealer when you purchase your Mazda 3 or accidentally break the one you have do not fret -- there is still a way to add another key. To do this, you'll need an inexpensive flathead screwdriver as well as a new CR2025 battery. Once you have these items, it's time to remove the key fob and replace the battery. Locate the auxiliary key release. It's located underneath the metal portion and is easy to locate. The back cover should come off when you press the button. Then, insert the head of the screwdriver into the notch or spacing on the top of the metal component and then pull it off.

Insert your new or spare key into the slot after taking out the additional key. Set the ignition ON and wait for about five seconds, and then turn it to OFF. This will allow the system to recognize the new key and begin your vehicle in the future.

It is only possible to program three keys in your Mazda 3. The final thing you want is to have more than two working key fobs, and not be in a position to get your car started. This is a safeguard to stop anyone who is not authorized from activating your keys and launching your vehicle.

How to Reprogram a Spare Key

If you have a spare key, it's a good idea know how to program it if the original key you had is lost or stolen. This will stop unauthorised people from getting into your car and causing damage to it. This process is compatible with any Mazda, though you'll need two keys that work to begin the reprogramming process. If you don't have the two working keys, you'll need bring your vehicle to the dealership to have it done.

Begin by stepping into your driver's seat and close the door, except for the one that's open. Put the first working key in the slot, and then turn the ignition to ON. For five seconds, take the key out and repeat the process with a second key.

After you've completed programming your new key, you should have three working keys you can use to start your vehicle in the future. Before you store each key, make sure that it's working correctly.

You should think about purchasing a spare Mazda 3 remote, especially in the event that your vehicle is prone to problems. You can purchase one on the internet or at your local auto store. Make sure you review the reviews before buying to ensure that you don't purchase the wrong key fob that isn't compatible with your car.

How do I change the battery using a spare key

There's nothing more frustrating than finding that the battery on your key fob failed 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 key button at the back of the keyfob. This will remove the metal key that is used as an auxiliary key, and expose an opening on both sides of the case. Press the flathead screwdriver into one of these slots, and gently break the two parts of the case. Once the battery is fully exposed, remove the case and put it in a place where you won't forget it.

Before you begin, be sure that you have a brand new replacement battery. They can be found at any retailer that sells batteries or at a Mazda dealer near Winter Garden. mazda car keys replacement G28 Car Keys Solutions of battery is vital to make sure that your keyfob functions properly.

Then, place the new battery into place and replace the cap of the battery. Be careful not to damage the rubber ring that holds the battery. The two halves should be pressed together until you hear the click.

How to reset the system's Keyless Entry System

The key fob on your Mazda 3 is not only an extra convenience, but also an important security feature. The car won't start if the key is lost or stolen, even if you've got an extra key fob. The key fob must be reprogrammed by the dealer to enable it to function again. This could be a costly and stressful experience It's a good idea to know how to reset the system yourself.

Remove the battery from the system for 15 minutes. This will clear any residual power from the on-board computer. Then, disconnect the connectors for the LF-ECU and the demand switch connectors. After that, test for continuity between the following terminals:

To program the new key or spare, place it in the slot and turn the ignition to ON. Keep the key in place for around five seconds, and then turn off. The key's information will be saved to your car's computer and the new fob will be able start your vehicle in the future. You can program up to three fobs but you should only use one at a time. This will stop unauthorised people from copying your key and gaining access to your vehicle. You can purchase a new key fob online, however you'll still need to visit an authorized locksmith or dealer to get it cut and programmed.