How to Add, Change, and Reprogram a Mazda 3 Spare Key
Whether you dropped your key fob on the floor or it stopped working, it's always best to have an extra key in your pocket. This article will explain everything you must know about adding, changing, and changing your Mazda 3 key fobs.
A word of caution Certain keys need to be programmed by a locksmith professional or dealer, whereas other keys do not. Only use official Mazda replacements to replace your key fob.
How do I add an additional key
You can add an additional key in case you don't have a spare key available or when you accidentally damage your current one. You'll need to use a flathead screwdriver and a new CR2025 battery. Once you've got the tools, it's time to open the key fob and swap the battery. Find the key release auxiliary. It's located on the underside of the metal portion and is easy to find. When you press the button, the cover should slide off immediately. Next, insert the head of the screwdriver into the notch or the space at the top of the metal component and pull it off.
Insert your spare key or a new one into the slot after taking out the secondary key. Set the ignition to ON, and wait for about five seconds before turning it to OFF. This will register the new key's details to the system that will allow it to start your vehicle in the future.
You can only program three keys in your Mazda 3. The final thing you want is to have more than two working key fobs, and not be capable of getting your vehicle started. This is a safety measure to prevent unauthorized users from activating your keys and starting your car.
How to reprogram a spare key
It's a smart idea to be aware of how to reprogram a spare key in the event that your original key gets lost or stolen. This will stop unauthorized persons from opening your car or stealing it. This will work with any Mazda. You will require two keys that are working to begin the reprogramming. If you don't have two keys that work it's recommended to take your Mazda to the dealer to get this completed.
Begin by getting in your driver's seat and closing the door, except for the one that's opened. Set the ignition to ON and insert the initial working key. After five seconds, remove the key. Repeat the process with the second key.
Once you've finished programming your new key, you should have three working keys you can use to start your car in the future. Before placing each key in storage, make sure that it's working correctly.
You should think about purchasing a spare Mazda 3 remote, especially in the event that your vehicle is prone to problems. You can buy one online or in your local automotive store. Make sure you look up reviews before you purchase so that you don't get the wrong key fob that isn't compatible with your car.
How to Change the Battery on a spare Key
It's awful to discover that the key fob you used to use has gone out and you're locked out of your car. It's simple to replace the battery yourself and save money at the dealer.
The first step is to press the auxiliary key button located on the back of the key fob. This will remove the key auxiliary and reveal an opening on both sides of the case. Place the flathead in one of these slots, and then gently pry the two halves apart. When the battery is fully exposed, take it out of the case and place it in a spot where you'll never forget it.
Be sure to bring an additional battery before you begin. They can be found at any retailer that sells batteries or at a Mazda dealer close to Winter Garden. The right kind of battery is vital to ensure that your key fob functions correctly.
Then, place the new battery in its place and then replace the cap of the battery. Be mazda dealership key replacement not to damage the rubber ring on which the battery rests. Then, press the two parts of the key fob until you hear a click.
How to reset the system's Keyless Entry System
The key fob that you have in your Mazda 3 is not only a convenience, it's also an important security feature. The car will not start if your key is stolen or lost even if you have a spare fob. This is because the key fob needs to be reset at the dealership in order to function properly. This can be a painful and costly process. Therefore, it's recommended to learn how you can reset the system.
Disconnect the battery from the system for 15 minutes. This will remove any remaining electricity from the on-board computer. Then, disconnect both LF-ECU connector as well as the demand switch connectors. After that, test for continuity between the following terminals:
Put the key in the slot, then switch on the ignition. Turn off the ignition after approximately five seconds. The key's details are now transferred to the computer of your vehicle and the new fob will start your vehicle. You can program up to three fobs but you should only use one at a time. This will stop unauthorized individuals from stealing your key and gaining access to your vehicle. You can buy a new keyfob on the internet, but it still needs to be programmed and cut by an authorized dealer.