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How to Add, Change, and Reprogram a Mazda 3 Spare Key
Whether you dropped your key fob on the ground or it stopped working, it's best to have an extra key available. This article will explain everything you must be aware of adding, changing, or reprogramming your Mazda 3 key fobs.
Certain keys require programming by an expert locksmith, while others don't. Use only authentic Mazda 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 dealer when you purchase your Mazda 3 or accidentally break your current one but don't worry, there is still a way to add another key. To do replacement mazda key , you'll need an inexpensive flathead screwdriver as well as an CR2025 battery that's new. Once you have the items, it is time to open the key fob. First, locate the auxiliary key release button. The button is on the bottom of the metal part. It's easy to locate. The back cover should come off as soon as you press the button. Next, place the screwdriver's head into the notch or spacing on the top of the metal piece and pry it off.
Insert your spare key or a new one into the slot following the removal of the auxiliary key. Set the ignition to ON, and wait for around five seconds before turning it to off. This will allow the system to recognize the new key and start your vehicle in the future.
It is only possible to program three keys into 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 safety precaution that is designed to block unauthorized users, like valet drivers who are not authorized to use your key and thereby starting your car.
How do you reprogram a spare key?
If you have a spare key it's a good idea to be aware of how to program it in the event your original key gets lost or stolen. This will stop unauthorized persons from starting your vehicle or stealing it. This will work with any Mazda. You will require two keys that work for the reprogramming to begin. If you don't own two working keys then it's best to bring your Mazda to the dealer to get this done.
Begin by stepping into the driver's seat, shutting all doors, with the exception of the one that is open. Insert the first working key into the slot, then turn the ignition to the ON position. After five seconds, take the key out and repeat the procedure with the second key.
Once you've completed programming your new key, you'll have 3 keys that will be able to start your car in the future. Before placing each key in storage, make sure that it's working correctly.
It's a good idea buy an extra Mazda 3 key fob, particularly if you're a driver 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 to go through reviews prior to purchasing to ensure you don't buy an item that isn't compatible with your car.
How do you change the battery using a spare key
It's very frustrating to discover that your key fob is dead and you're unable to unlock your car. Luckily, it's easy to replace the battery and save some money at the dealer.
Press the auxiliary key button on the back of the keyfob. This will remove the metal key auxiliary to reveal slots on both sides of the case. Use the screwdriver's flathead to push it into one of these slots. Then, gently remove the two sides of the case. Once the battery is fully exposed, take it out and place it in a safe place somewhere safe from being lost.
Before you begin, be sure that you have a brand new replacement battery. They are available in any store that sells batteries or at a Mazda dealer close to Winter Garden. Using the correct type of battery will ensure that your key fob operates effectively.
Replace the cap on the battery, and then insert the new battery. Be careful not to scratch the small rubber ring that the battery is placed on. Finally, press the two halves of the key fob together until you hear the sound of a click.
How do you reset the Keyless Entry System
The Mazda 3 key fob is not just a convenient feature. It's also a security feature. If you lose your key or had it stolen the car won't start even if you've got the spare key fob. The key fob should be reset by the dealer to enable it to function again. It can be a frustrating and costly ordeal. Therefore, it's advisable to understand how you can reset the system.
To reset the system, disconnect the battery for around 15 minutes. This will eliminate any residual electricity from the on-board computer. Then, disconnect the LF ECU and demand switch connectors. Then, check continuity between the following terminals:
To program the new key or spare, place it in the slot and set the ignition to ON. Leave the key in for about five seconds, then switch off. The key's information has been added to the computer in your car and the new fob can start your vehicle. You can program any number of fobs you need however only one should be used at a specific time. This will prevent unauthorized persons from copying the key and getting ahold of your vehicle. You can purchase a new keyfob online, however it will still need to be cut and programmed by an authorized dealer.