Are You Responsible For A Mazda 6 Key Budget? 10 Ways To Waste Your Money How to Add, Change, and Reprogram a Mazda 3 Spare Key

It's a good idea to keep an extra key on hand, whether you dropped your keyfob or it stopped working. This article will cover everything you should be aware of adding, changing, and reprogramming your Mazda 3 key fobs.

A word of warning Some keys require programming by a locksmith professional or dealer, whereas others do not. Only use official Mazda replacements to replace your key fob.


How to Add a Spare Key

You can add a second key if you don't have a spare key, or if you accidentally break the one you have. To accomplish this, you'll need a small screwdriver with a flat head and an updated CR2025 battery. Once you have these items and are ready to remove the key fob and swap the battery. First, locate the key release button for the auxiliary key. The button is located beneath the metal part. It's easy to find. The back cover should slide off as soon as you press the button. Then, place the screwdriver's head into the notch on top or the space and remove the metal part.

Once the auxiliary key has been removed, insert the new or spare key into the slot. Switch the ignition on and then wait for around five seconds, then turn it to OFF. This will allow the system to recognize the new key and start your vehicle in the future.

It's important to keep in mind that you can only program up to three keys for your Mazda 3. The last thing you want is to have more than two functioning key fobs and not being in a position to get your car started. This is a security precaution that is designed to block unauthorized users, like valet drivers who are not authorized to use your key and thereby launching your vehicle.

How do I reprogram an unrepaired key?

It's a good idea to learn how you can reprogram an extra key in the event that your original key becomes lost or stolen. This will stop unauthorised people from getting into your car and causing damage to it. This procedure should work with any Mazda however, you'll require two keys working to begin the reprogramming process. If you don't own two keys that function it's recommended to take your Mazda to a dealer to get this completed.

Begin by getting in your driver's seat and close the door, with the exception for the one that's been opened. Put the first working key in the slot, then turn the ignition to the ON position. After five seconds, remove the key. Repeat the process with the second key.

After you finish programming your new key, you should have three keys that work to start your vehicle in the future. Before placing mazda replacement key in storage, make sure that it's functioning properly.

You should think about purchasing an extra Mazda 3 remote, especially when your car is susceptible to problems. You can purchase one online or at a local automotive store, but be sure to read the reviews before purchasing so that you can avoid purchasing one that's not compatible with your vehicle.

How to change the Battery on a Spare Key

There's nothing worse than finding that the battery in your key fob has been damaged and you're unable to unlock your car. It's a good thing that it's simple to replace the battery and save some money at the dealership.

The first step is to press the auxiliary button on the back of the key fob. This will take out the metal key auxiliary and reveal two slots on the sides of the case. Put the flathead screwdriver in one of these slots, and gently take apart the two parts of the case. Once the battery is fully exposed, take it out and place the case somewhere safe from being lost.

Before you begin, make sure that you have a brand new replacement battery. You can find these at any store that sells batteries or at a Mazda dealer near Winter Garden. The correct battery is essential to make sure that your keyfob functions correctly.

Replace the cap of the battery and then put in the new battery. Be careful not to damage the small rubber ring that the battery is placed on. The two halves should be pressed together until you hear a click.

How to reset the system's Keyless Entry System

The Mazda 3 key fob is not just a piece of equipment for convenience. It also serves as a security feature. If you lose your key or have it stolen, the car will not start even if it has the spare key fob. The key fob should be reset by the dealer to enable it to function again. This can be a costly and stressful experience It's a good idea to learn how to reset the system yourself.

To reset the system, remove the battery for around 15 minutes. This will take out any remaining electricity from the onboard computer. The next step is to disconnect the LF-ECU and demand switch connectors. Then, verify the continuity between the following terminals:

Insert the key into the slot, and switch the ignition on. Keep the key in place for about five seconds, then switch off. The key information is now added to the computer in your car and the new fob is able to start your car. You can program up to three fobs, however, you should only use one at each time. This will prevent unauthorized persons from copying your key and gaining access to your vehicle. You can purchase a replacement key fob online, but you'll still need to visit an authorized locksmith or dealer to cut it and programmed.