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

Whether you dropped your key fob on the floor or it has stopped working, it's always recommended to keep an extra key available. This article will explain how to add, modify or reprogramme your Mazda 3 keyfobs.

A word of warning Certain keys require programming by a locksmith professional or dealer, whereas other keys do not. Make sure to use official Mazda replacements for your key fob.

How to Add a Spare Key

If you're not fortunate enough to receive a spare key from the dealer when you purchase your Mazda 3 or accidentally break the one you have Don't fret, there's the option of adding another key. You'll need the flathead screwdriver, as well as a CR2025 new battery. Once you've got these items you need, it's time to open the key fob. First look for the key release button for the auxiliary key. It's on the underside of the metal piece and is easy to find. Once you hit the button, the cover should fall off right away. Next, insert the screwdriver's head into the notch or spacing on the top of the metal piece and then pull it off.

Insert your new or spare key into the slot after removing the secondary key. Set the ignition ON and wait for approximately five seconds before turning it to off. This will add the new key's information into the system that will allow it to start your vehicle in the future.

It's important to know that you can only program up to three keys for your Mazda 3. You don't want to use more than two key fobs in order to start your car. This is a precautionary measure to stop unauthorized users from activating your keys and launching your car.

How do you reprogram a spare key

It's a good idea to learn how you can reprogram an extra key in the event that your original key is lost or stolen. mazda cx 9 key fob will prevent unauthorised persons from getting into your car and causing damage to it. This will work with any Mazda. You'll need two keys that are working to begin the reprogramming process. If you don't have two keys that function, it's best to take your Mazda to a dealer to get this done.

Begin by stepping into your driver's seat and shutting the door, excluding for the one that's open. Place the working key in the slot, and then turn the ignition to the ON position. Wait for five seconds, then remove the key and repeat the process with a second key.

Once you've finished programming your new key, you should have three working keys you can use to start your car in the future. Before you store each key, make sure that it's functioning properly.

It is advisable to purchase an extra Mazda 3 remote, especially when your car is susceptible to issues. You can purchase one on the internet or in your local automotive store. Make sure you review the reviews before buying so that you don't get an item that isn't compatible with your car.

How to change the battery using a spare key

There's nothing worse than discovering that your key fob battery has gone out and you're not able to unlock your car. Luckily, it's easy to replace the battery and save yourself some cash at the dealership.

The first step is to press the auxiliary key button on the back of the key fob. This will take out the key from the metal and reveal two slots on the opposite side of the case. The flathead should be inserted into one of these slots, and then gently push the two halves of the case apart. When the battery is completely exposed, take it out and set aside the case somewhere that you won't forget about it.

Before you begin, make sure you have a brand new replacement battery. You can find these in any store that sells batteries or at an Mazda dealer close to Winter Garden. Using the right type of battery will ensure that your key fob operates perfectly.

Next, put the new battery in its place and then replace the cap of the battery. Be careful not to damage the rubber ring that holds the battery. Finally press the two parts of the key fob together until you hear an audible click.

How can I reset the Keyless Entry System

The key fob inside your Mazda 3 is not only an extra convenience, but also an important security feature. If you lose your key, or have it stolen, the car will not start even if it has the spare fob. The key fob has to be reprogrammed by a dealer to enable it to function again. This can be a costly and frustrating experience, so it's a good idea to learn how to reset the system yourself.

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

Place the key into the slot, and switch the ignition on. Switch off the ignition after about five minutes. The key information is now stored in the car's computer and the new fob is able to start your vehicle. You can program up to three fobs, however, you should only use one at each time. This will stop unauthorized individuals from stealing your key and getting access to your vehicle. You can buy a new keyfob from the internet, however it must be programmed and cut by a dealer.

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Pub: 19 Apr 2024 09:47 UTC
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