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How to Add, Change, and Reprogram a mazda spare key 3 Spare Key

It's a good idea always to keep an extra key in your pocket in case you lose the keyfob or it was unable to function. This article will provide everything you should know about the process of adding, changing, and reprogramming your Mazda 3 key fobs.

Be aware that some keys require programming from a professional locksmith, while others do not. Make sure you use only genuine mazda 6 key replacements to replace your key fob.

How to add a spare key

If you're not fortunate enough to get a spare key from the dealership when you purchase your Mazda 3 or accidentally break the one you have do not fret -- there's still an option to make another key. You'll need a flathead screwdriver and a new CR2025 battery. Once you've got all the equipment then it's time to open the key fob. Find the key release auxiliary. It's on the underside of the metal part and is easy to find. Once you hit the button, the back cover will fall off instantly. Next, place the head of the screwdriver into the notch or spacing on the top of the metal component and pry it off.

Insert the spare or new key into the slot after removing the secondary key. Set the ignition ON and wait for five seconds before turning it to OFF. This will add the new information on the key to the system which will allow it to start your car in the future.

You can only program three keys into your Mazda 3. You don't want to utilize more than two keys to start your car. This is a safety precaution designed to prevent unauthorised users, like valet drivers who are not authorized to use your key and starting your vehicle.

How to reprogram a spare key

If you have a spare key, it's a good idea know how to reprogram it in case your original key gets stolen or lost. This will stop unauthorized persons from stealing your car and starting it. This method should work on any Mazda however, you'll require two keys working to begin the reprogramming process. If you don't own two keys that work, you should take your Mazda to a dealer to get this done.

Begin by getting into your driver's seat and shutting the door, excluding for the one that's open. Set the ignition to ON and insert the first functioning key. After five seconds, remove the key. Repeat the process with the second key.

Once you've programmed your new key, you'll have three keys that you can use to start your car in the future. Test each key to make sure that they're functioning properly before throwing them away.

It's a good idea to purchase an extra Mazda Lost Key 3 key fob, especially if you're someone who frequently loses their key or has other issues with it. You can buy one online or at a local automotive store. Be sure to read reviews before purchasing to ensure that you don't purchase a key fob which isn't compatible with your car.

How do you change the battery on a spare key?

It's very frustrating to discover that your key fob has died and you're locked out of your car. Fortunately, it's easy to replace the battery and save yourself some money at the dealer.

The first step is to press the auxiliary key button located on the back of the key fob. This will release the key from the metal and reveal the slots on both sides of the case. Put the flathead into one of these slots, and then gently pry the two halves apart. When the battery is completely exposed, take it out and place the case somewhere that you won't forget about it.

Before you start, make sure that you have a brand new replacement battery. You can purchase them at any store that stocks batteries or at an Mazda dealer close to Winter Garden. Choosing the right battery will ensure that your key fob is working effectively.

Next, put the new battery in the correct place and replace the cap of the battery. Be careful not to damage the small rubber ring that the battery sits on. Finally press the two parts of the key fob until you hear the sound of a click.

How to reset a Keyless Entry System

The key fob on your Mazda 3 is not only an added convenience, but it's also an important security feature. If you lose your key or had it stolen the car won't start, even if you have the spare key fob. This is because the key fob has to be reset at the dealership in order to work again. It's a difficult and costly experience. Therefore, it's recommended to learn how you can reset the system.

To reset the system, disconnect the battery for around 15 minutes. This will eliminate any remaining electric current from the onboard computer. Then, disconnect both the LF-ECU connector and the demand switch connectors. Verify that the connections are in good order between the terminals.

Insert the key into the slot, then turn on the ignition. Put the key in for around five seconds, and then turn it off. The key's information will be saved to your car's computer and the new fob will be able to start your vehicle in the future. You can program any number of fobs you desire however only one should be utilized at any specific time. This will keep unauthorised individuals from stealing your keys and getting access to your vehicle. You can purchase a replacement key for mazda cx 5 keyfob from the internet, however it will still need to be cut and programmed by an authorized dealer.