How to Add, Change, and Reprogram a mazda 3 spare key; check out this one from www.nanacademy.co.kr,

If you've dropped your key fob on the floor or it simply stopped working, it's always recommended to keep a spare key handy. This article will show you how to add, modify and re-programme your Mazda 3 keyfobs.

Certain keys require programming from a professional locksmith, while others don't. Make sure to make use of official Mazda replacements for your key fob.

How to Add a Spare Key

If you're not lucky enough to find a spare key from the dealership when you buy your mazda dealership key replacement 3 or accidentally break your current key do not fret -- there's still a way to add another key. You'll need to use a flathead screwdriver and a CR2025 new battery. Once you've got the tools then it's time to open the key fob and replace the battery. Find the key release auxiliary. It's located under the metal part and is easy to find. The back cover should slide off as soon as you press the button. Then, put the screwdriver's head into the notch on top or in the space, and remove the metal part.

Insert your new or spare key into the slot after removing the additional key. Set the ignition to ON and wait for around five seconds before setting it to OFF. This will allow the system to recognize the new key and begin your vehicle in the future.

You can only program three keys into your Mazda 3. You don't want to use more than two key fobs in order to start your vehicle. This is a security measure designed to prevent unauthorized users, such as valet drivers from activating your key and starting your car.

How to reprogram a spare key

It's a smart idea know how to reprogram a spare key in the event that your original key is lost or stolen. This will prevent unauthorized people from starting your car, or stealing it. This will work with any Mazda. You'll require two keys that are functioning to begin the reprogramming. If you don't have the two working keys, you'll have to take your vehicle to a dealership to get it done.

Start by getting into the driver's position, and close all the doors with the exception of the one that is open. Turn the ignition on and insert the first functioning key. Wait five seconds before removing the key. Repeat with the second key.

After you've completed programming your new key, you'll have three keys that you can use to start your vehicle in the future. Test each key to be sure that they're operating correctly before putting them away.

It's a good idea to purchase an extra Mazda 3 key fob, especially if your car is one who often loses your key 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 you don't buy a key fob which isn't compatible with your car.

How do I change the battery with a spare key?

It's awful to discover that your key fob has died, and you are not able to unlock your vehicle. Fortunately, it's easy to replace the battery and save yourself some money at the dealer.

Press the auxiliary button on the back of the keyfob. This will remove the key that is used as an auxiliary key, and expose an opening on both sides of the case. Press the flathead into one of these slots, and then gently pull the two halves apart. When the battery is completely exposed, remove it and place the case somewhere you won't forget it.

Before you begin, make sure you have a brand new replacement battery. They can be found at any retailer that sells batteries or at an Mazda dealer close to Winter Garden. The correct battery is vital to ensure that your key fob functions properly.

Then, put the new battery in the correct place and replace the cap on the battery. Be careful not to damage the rubber ring on which the battery rests. Press the two halves together until you can hear the click.

How to Reset the Keyless Entry System

The Mazda 3 key fob is not just a piece of equipment for convenience. It's also an element of security. The car will not start if the key is lost or stolen, even if you've got an extra key fob. This is because the key fob needs to be reprogrammed by the dealership in order to work properly. It can be a costly and time-consuming process therefore it's a great idea to know how to reset the system yourself.

Disconnect the battery from the system for 15 minutes. This will remove any remaining power from the on-board computer. Then, disconnect the LF -ECU and demand switch connectors. Verify that the connections are in good order between the terminals.

Put the key in the slot, and switch the ignition on. Turn off the ignition after about five minutes. The key's details will be added to your vehicle'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 unauthorized individuals from stealing your keys and getting access to your vehicle. You can buy a new keyfob online, but it will still need to be cut and programmed by a dealer.