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

It's a good idea to keep an extra key at hand, whether you dropped the keyfob or it has stopped working. This article will explain everything you need to learn about adding, changing, or reprogramming your mazda 3 car key 3 key fobs.

Be aware that some keys require programming by a professional locksmith, while others do not. Make sure to use genuine mazda spare key cost replacements for your key fob.

How do I add an extra key

If you're unable to find a spare key from the dealer when you purchase your Mazda 3 or accidentally break your current key Don't fret, there is still an option to make another key. To accomplish this, you'll need a small flathead screwdriver and a new CR2025 battery. Once you have these items you can open up the key fob and change the battery. First, locate the auxiliary key release button. It's located underneath the metal portion and is easy to locate. Once you press the button, the back cover will fall off instantly. Next, place the head of the screwdriver into the notch or the space at the top of the metal part and then pull it off.

Once the auxiliary key is removed, insert the new or spare key into the slot. Turn the ignition on and then wait for around five seconds, and then turn it to OFF. This will register the new key's information into the system that will allow it to start your vehicle in the future.

It's important to note that you can only program up to three keys on your Mazda 3. You don't want to have to use more than two key fobs in order to start your car. This is a safety precaution designed to prevent unauthorized users, such as valet drivers who are not authorized to use your key and thereby launching your vehicle.

How to Reprogram a Spare Key

It's a good idea to know how you can reprogram an extra key in the event that the original key is lost or stolen. This will stop unauthorized persons from stealing your car and starting it. This process is compatible with any Mazda, though you'll need two working keys to begin the process of reprogramming. If you don't own two keys that function it's recommended to take your Mazda to the dealer to get this completed.

Begin by getting into your driver's seat, and close the door, with the exception for the one that's opened. Insert the first working key into the slot, and then turn the ignition to the ON position. For five seconds, take the key out and repeat the process with the second key.

After programming your new key, you should have three keys that start your car in the future. Test each key to ensure sure that they're operating correctly before placing them away.

It's a good idea purchase an extra Mazda 3 key fob, particularly if you're a driver who is prone to losing keys or has other issues with it. You can purchase one online or at your local auto store. Make sure to look up reviews before you purchase to ensure you don't buy a key fob which isn't compatible with your car.

How do I change the battery on a Spare Key

There's nothing more frustrating than discovering that the battery in your key fob has gone out and you're not able to unlock your car. It's easy to change the battery yourself and save money at the dealer.

Press the auxiliary key button on the back of the keyfob. This will remove the metal key and reveal a slot on each side of the case. Put the flathead into one of these slots, and then gently pull the two halves apart. Once the battery is fully exposed, remove it and place the case somewhere safe from being lost.

Be sure to bring a new battery ready prior to beginning. You can purchase them in any store that sells batteries or at an Mazda dealer near Winter Garden. The right kind of battery is vital to ensure that your key fob functions properly.

Replace the cap on the battery, and then insert the new battery. Be careful not to damage the small rubber ring that the battery rests on. Then press the two halves of the key fob together until you hear an audible click.

How do I reset a Keyless Entry System

The key fob in your mazda 626 key 3 is not only a convenience, it's also an important security feature. The car won't start if the key is lost or stolen even if you have a spare key fob. The key fob must be reprogrammed by a dealer to make it work again. It can be a frustrating and costly process. Therefore, it's recommended to learn how to reset the system.

To reset the system, unplug the battery for 15 minutes. This will remove any residual electricity in the on-board computer. Then, disconnect the LF -ECU and demand switch connectors. Check for continuity between the terminals.

Place the key into the slot, and switch on the ignition. Turn off the ignition after about five minutes. The key information will now be transferred to your vehicle's computer and the new fob will be able start your car in the future. You can program up to three fobs but you must only use one at one time. This will prevent unauthorized people from stealing your key and gaining access to your car. You can purchase a brand new key fob online, but you'll still have to visit a dealer or locksmith to have it cut and programmed.