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

It's a good idea always to have a spare key on hand no matter if you've dropped your keyfob or it stopped working. This article will explain everything you must learn about adding, changing, or changing your Mazda 3 key fobs.

Warning: Some keys require programming from an expert locksmith, while others do not. Make sure you use only authentic mazda keys locked in car replacements to replace your key fob.

How do you add an extra key

If you're not fortunate enough to get a spare key from the dealer when you purchase your Mazda 3 or accidentally break your current key but don't worry, there's still an option to make another key. To accomplish this, you'll need a small flathead screwdriver and an CR2025 battery that's new. Once you've got these tools, it's time to access the key fob to change the battery. Find the auxiliary key release. It's located underneath the metal portion and is easy to find. The cover on the back should fall off the moment you press the button. Then, place the screwdriver's tip into the notch on top or the space and pull the metal piece off.

Insert the spare or new key into the slot after you have removed the auxiliary key. Turn the ignition on and then wait for around five seconds, then turn it to off. This will add the new key's information into the system and allow it to start your car in the future.

You can only 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 vehicle started. This is a safety measure that is designed to block unauthorized users, like valet drivers from activating your key and thereby starting your car.

How to Reprogram a Spare Key

It's a smart idea learn how to program mazda 2 key fob you can reprogram a spare key in the event that your original key becomes lost or stolen. This will stop unauthorized persons from opening your car or stealing it. This procedure should work with any Mazda however, you'll require two keys that work to begin the process of reprogramming. If you don't own two working keys, it's best to take your Mazda to a dealer to get this done.

Begin by stepping into the driver's seat and shutting all doors, with the exception of the one that is open. Place the first working key in the slot, then turn the ignition to ON. Wait for five seconds, then take the key out and repeat the process with the second working key.

After you finish programming your new key you should have three keys that be able to start your car in the future. Before you store each key, make sure it's functioning correctly.

It's a good idea buy a spare Mazda 6 keys 3 key fob, especially if your car is one who has a tendency to lose their keys or has other issues with it. You can purchase one on the internet or in your local automotive store. Make sure you go through reviews prior to purchasing to ensure that you don't get the wrong key fob that isn't compatible with your vehicle.

How to Change the Battery on a spare key

There's nothing worse than discovering that the battery on your key fob died and you can't unlock your car. It's easy to replace the battery yourself and save money at the dealer.

Press the auxiliary key button on the back of the keyfob. This will remove the key from the metal and reveal a slot on each side of the case. Use the screwdriver's flathead to push it into one of these slots and gently take apart the two halves of the case. When the battery is completely exposed, take it out and set aside the case somewhere that you won't forget about it.

Before you start, make sure that you have a new replacement battery. They are available in any store that sells batteries or at an mazda replacement key fob dealer near Winter Garden. The right kind of battery is crucial to ensure that your keyfob works correctly.

Then, place the new battery in place and replace the cap on the battery. Be careful not to scratch the small rubber ring that the battery sits on. Then, press the two halves of the key fob together until you hear the sound of clicking.

How to Reset the Keyless Entry System

The mazda 3 replacement key 3 key fob is not just a convenience. It also serves as a security measure. The car will not start if the key is stolen or lost, even if you've got a spare fob. This is because the key fob needs to be reset at the dealership in order to work properly. It can be a costly and frustrating ordeal and it's a good idea to learn how to reset the system yourself.

Remove the battery from the system for 15 minutes. This will eliminate any residual power from the on-board computer. Then, disconnect the LF-ECU connector and the demand switch connectors. Check for continuity between the terminals.

Place the key in the slot, then turn the ignition ON. Stop the ignition after approximately five seconds. The key information is now transferred to the computer of your vehicle and the new fob is able to start your vehicle. You can program up to three fobs, however, you must only use one at each time. This stops unauthorized individuals from copying your key and gaining access to your car. You can purchase a replacement key fob online, but you'll still need to visit an expert locksmith or dealer to cut it and programmed.