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 a good idea to have a spare key on hand. This article will teach you how to add, change, and reprogramme your Mazda 3 keyfobs.
A word of warning Some keys require programming by a locksmith professional or dealer, 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 fortunate enough to receive a spare key from the dealership when you purchase your Mazda 3 or accidentally break the one you have, don't worry -- there's the option of adding another key. You'll need to use a flathead screwdriver and a new CR2025 battery. Once you've got these items and are ready to open the key fob to change the battery. First look for the auxiliary key release button. It's located underneath the metal component and is easy to locate. Once you hit the button, the cover will fall off instantly. Next, place the screwdriver's head into the notch or the space on the top of the metal part and pull it away.
Insert https://www.thekeylab.co.uk/mazda-car-keys/ or spare key into the slot after taking out the additional key. Set the ignition to ON, and wait for five seconds before turning it to OFF. This will register the new key's information into the system which will allow it to start your vehicle in the future.
It is only possible to program three keys to your Mazda 3. The final thing you want is to have more than two working key fobs and not being able to get your car started. 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
It's a smart idea to know how to reprogram a spare key in the event that your original key is lost or stolen. This will stop unauthorised people from opening your car or taking it. This will work with any Mazda. You will require two keys that are functioning to begin the reprogramming. If you don't own two working keys, you'll need to bring your vehicle to the dealership to get it done.
Begin by getting into your driver's seat and close the door, except for the one that's already opened. Put the first working key in the slot, then set the ignition to ON. Wait for five seconds, then remove the key and repeat the procedure with the second key.
Once you've completed programming your new key you should have three keys that be able to start your vehicle in the future. Before storing each key, make sure that it's working correctly.
You should think about buying a spare Mazda 3 remote, especially in the event that your vehicle is prone to problems. You can buy one online or at your local automobile store, but make sure to read the reviews prior to purchasing so you aren't purchasing a key fob that's not compatible with your car.
How to change the battery with a spare key?
It's awful to discover that your key fob has died and you're locked out of your car. It's easy to change the battery yourself and save money at the dealership.
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The first step is to press the auxiliary key button located on the back of the key fob. This will release the metal key that is used as an auxiliary key, and expose slots on both sides of the case. Place the flathead in one of these slots, and then gently push the two halves apart. Once the battery has been fully exposed, take it out of the case and put it somewhere you will not forget it.
Before you begin, be sure you have a brand new replacement battery. You can purchase them at any store that sells batteries or at an Mazda dealer close to Winter Garden. The correct type of battery is vital to ensure that your keyfob works properly.
Replace the battery cap and then install the new battery. Be careful not to scratch the small rubber ring that the battery is placed on. The two halves should be pressed together until you hear a click.
How to Reset the system's Keyless Entry System
The Mazda 3 key fob is not just a piece of equipment for convenience. It also serves as an important security feature. The car will not start if your key is stolen or lost, even if you've got a spare key fob. This is because the fob that you have to be reprogrammed at the dealership to work again. This can be a costly and frustrating experience, so it's a good idea to understand how to reset the system yourself.
To reset the system, remove the battery for approximately 15 minutes. This will clear any residual electricity from the on-board computer. Next, disconnect the LF-ECU and demand switch connectors. Verify the continuity between the next terminals.
To program a new key or a spare, insert it into the slot and turn the ignition to ON. Stop the ignition after about five seconds. The information from the key will be transferred to your vehicle's computer and the new fob will be able start your car in the future. You can program as many fobs as you need, but only one should be utilized at any particular time. This will prevent unauthorized people from stealing your keys and gaining access to your car. You can buy a new keyfob online, however it still needs to be programmed and cut by a dealer.
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