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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 just stopped working, it's always an excellent idea to keep a spare key handy. This article will provide everything you should learn about the process of adding, changing, and reprogramming your Mazda 3 key fobs.
Certain keys require programming from a professional locksmith, while others don't. Be sure to only make use of official Mazda replacements for your key fob.
How to Add a Spare Key
If you're not fortunate enough to receive a spare keys from the dealer when you buy your Mazda 3 or accidentally break your current one do not fret -- there is still an option to make another key. You'll need to use a flathead screwdriver and a new CR2025 battery. Once you've got these tools and are ready to open up the key fob to change the battery. First look for the button that allows you to release the key. It's located underneath the metal component and is easy to find. Once you press the button, the back cover should slide off immediately. Then, you can insert the head of the screwdriver into the notch or the space on the top of the metal part and pull it away.
Once the auxiliary key is removed, insert the new or spare key into the slot. Switch the ignition on and then wait for around five seconds, then set it to off. This will add the new information on the key to the system, allowing it to start your vehicle in the future.
You can only program three keys to your Mazda 3. You don't want to have to use more than two keys to start your vehicle. This is a security precaution designed to prevent unauthorised users, such as valet drivers, from activating your key and starting your car.
How to Reprogram a spare key
If you have a spare key it's important to know how to reprogram it in the event that your original key is stolen or lost. This will keep unauthorised persons from starting your vehicle or stealing it. This procedure should work with any Mazda however, you'll require two working keys to begin the process of reprogramming. If you don't own two working keys, you'll need take your vehicle to a dealership to have it done.
Start by getting into the driver's position and closing all the doors except the one that is open. Place the first working key into the slot, then turn the ignition to ON. Then wait five seconds before taking out the key. Repeat the process with the second key.
Once you've finished programming your new key, you should have three working keys that you can use to start your car in the future. Test each key to be sure that they're working properly before placing them away.
It's a good idea buy an extra Mazda 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 your local automotive store, but make sure to read reviews prior to purchasing so you aren't purchasing a key fob that's not compatible with your car.
How to Change the Battery on a Spare Key
It's a nightmare to discover that your key fob has died and you're locked out of your vehicle. It's a good thing that it's simple to replace the battery and save some cash at the dealership.
mazda keys replacement is to press the auxiliary key button that is located on the back of the key fob. This will remove the metal key auxiliary and reveal two slots on the sides of the case. Insert the flathead screwdriver into one of these slots and then gently remove the two parts of the case. When the battery is fully exposed, take it out of the case and place it somewhere that you will not forget it.
Before you begin, make sure you have a brand new replacement battery. You can purchase them at any store that sells batteries or at a Mazda dealer near Winter Garden. Using the right type of battery will ensure that your key fob works perfectly.
Then, put the new battery in its place and then replace the battery cap. Be careful not to damage the rubber ring that holds the battery. The two halves should be pressed together until you hear a click.
How can I reset the Keyless Entry System
The key fob on 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 won't start, even if you have the spare fob. The key fob needs to be reprogrammed by the dealer to allow it to work again. It can be a stressful and costly ordeal. Therefore, it's best to learn how you can reset the system.
To reset the system, disconnect the battery for about 15 minutes. This will clear any residual electric current from the onboard computer. The next step is to disconnect the LF-ECU and demand switch connectors. Then, verify the continuity between the following terminals:
To program a new key or a spare, place it in the slot and turn the ignition to ON. Put the key in for about five seconds, then turn it off. The key's information is transferred to the computer of your vehicle and the new fob will start your car. You can program as many fobs as you desire, but only one should be utilized at any particular time. This stops unauthorized individuals from copying the key and getting ahold of your vehicle. You can purchase a new key fob online, however you'll still need to visit an authorized locksmith or dealer to cut it and programmed.