How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to keep an extra key on hand regardless of whether you lost your keyfob or it stopped working. This article will explain everything you need to learn about changing, adding, and changing the programming of your Mazda 3 key fobs.
Note: Some keys require programming by an experienced locksmith, whereas others do not. Make sure to make use of official Mazda replacements for your key fob.
How to add an extra key
You can add a second key if you don't have a spare key or in the event that you break the one you have. To accomplish this, you'll require an inexpensive flathead screwdriver as well as a new CR2025 battery. Once you have the items then it's time to open the key fob. First, locate the button that allows you to release the key. It's located on the underside the metal part. It's easy to locate. The back cover should come off as soon as you press the button. Next, insert the screwdriver's head into the notch or spacing at the top of the metal piece and pry it off.
Once the auxiliary key has been removed, insert your new or spare key into the slot. Set the ignition to ON and wait for about five seconds before turning it to off. This will allow the system to recognize the new key and start your vehicle 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 precautionary measure to prevent unauthorized users from activating your keys and starting your car.
How do you reprogram an unrepaired key
It's smart to be aware of how to reprogram an extra key in the event that your original key is lost or stolen. This will stop unauthorized persons from starting your vehicle or taking it. This process is compatible with any Mazda however, you'll require two working keys to start the reprogramming process. If you don't have two working keys then it's best to bring your Mazda to the dealer to get this done.
Start by stepping into driver's position, and close all the doors with the exception of the one that is open. Put the first working key in the slot, then turn the ignition to the ON position. After five seconds, remove the key. Repeat the process with the second key.
After you've programmed your new key, you should have three working keys that you can use to start your vehicle in the future. Check each key to make sure that they're operating correctly before taking them off.
It's a good idea buy an extra Mazda 3 key fob, especially if you're a driver who often loses your key or has other issues with it. You can purchase one on the internet or at your local auto store. Be sure to go through reviews prior to purchasing to ensure that you don't purchase a key fob which isn't compatible with your car.
How to change the battery using a spare key
It's awful to discover that your key fob has failed and you're locked out of your car. Fortunately, it's easy to replace the battery and save some money at the dealership.
mazda keys replacement is to press the auxiliary key button located on the back of the key fob. This will release the metal key and reveal the slots on both sides of the case. Press the flathead screwdriver into one of these slots and gently remove the two sides of the case. Once the battery is fully exposed, remove the case and put it somewhere that you will not forget about it.
Be sure to have a replacement battery before you begin. These batteries can be purchased at any retailer that sells batteries or from a Mazda dealer in Winter Garden. Using the right type of battery will ensure that your key fob is working properly.
Then, put the new battery in place and replace the cap of the battery. Be careful not to damage the small rubber ring the battery is placed on. The two halves should be pressed together until you can hear the click.
How do you reset the Keyless Entry System
The Mazda 3 key fob is not just a piece of equipment for convenience. It also serves as an element of security. If you lose your key, or have it stolen the car will not start, even if you have the spare key fob. The key fob needs to be reprogrammed by a dealer to make it work again. It's a difficult and costly ordeal. So, it's best to know how to reset the system.
To reset the system, unplug the battery for approximately 15 minutes. This will eliminate any residual power from the on-board computer. Next, disconnect the LF-ECU and demand switch connectors. Then, check continuity between the following terminals:
To program the new key or spare, insert it into the slot and set the ignition to ON. Stop the ignition after about five minutes. The key's information has been added to the vehicle's computer and the new fob will start your vehicle. You can program up to three fobs but you must only use one at one time. This will stop unauthorised people from copying your key and gaining access to your vehicle. You can buy a new keyfob online, however it'll still need to be cut and programmed by an authorized dealer.