How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to have an extra key at hand no matter if you've dropped your keyfob, or it was unable to function. This article will teach you how to add, modify, and reprogramme your Mazda 3 keyfobs.
Certain keys require programming from professional locksmiths, while others do not. Be sure to only use official Mazda replacements for your key fob.
How to add an additional key
You can add a second key if you don't have a spare key or when you accidentally damage the one you already have. To do this, you'll need an inexpensive flathead screwdriver as well as an CR2025 battery that's new. Once you've got these tools then it's time to access the key fob and change the battery. Find the auxiliary key release. It's located under the metal portion and is easy to locate. The cover that covers the back should come off the moment you press the button. Then, place the screwdriver's tip into the notch at the top or into the space and remove the metal part.
Once the auxiliary key has been removed, insert your new or spare key into the slot. Set the ignition ON and wait for five seconds, and then turn it to off. This will allow the system to recognize the new key and begin your vehicle in the future.
It's important to note that you can only program up to three keys on your Mazda 3. The final thing you want is to have more than two functioning key fobs and not being in a position to get your vehicle started. This is a security measure to stop unauthorized users from activating your keys and launching your car.
How to Reprogram a spare key
If you have a spare key it's important to be aware of how to reprogram it in the event that your original key is lost or stolen. This will keep unauthorized people from taking your car and then starting it. This process is compatible with any Mazda however, you'll require two keys that work to begin the reprogramming. If you don't have two keys that work it's recommended to take your vehicle to a dealer to get this done.
Start by getting into the driver's seat and close all the doors with the exception of the one that is open. Set the ignition to ON and insert the first functioning key. Wait five seconds, then remove the key and repeat the process with a second key.
After programming your new key, you should have three keys that will allow you to start your vehicle in the future. Test each key to ensure sure that they're functioning properly before throwing them away.
It's a good idea buy an extra Mazda 3 key fob, especially if you're a driver who is prone to losing keys or has other issues with it. You can buy one online or at a local automotive store. Be sure to read reviews before purchasing so that you don't get an item that isn't compatible with your vehicle.
How do you change the battery on a spare key?
It's awful to discover that your key fob is dead and you're unable to unlock your car. It's a good thing that it's simple to replace the battery and save some money at the dealer.
Press mazda 2 car key on the back of the keyfob. This will remove the auxiliary key and expose two slots on the sides of the case. Place the flathead in one of these slots and gently pry the two halves apart. Once the battery is fully exposed, take it out of the case and place it in a place where you won't forget about it.
Before you begin, be sure that you have a brand new replacement battery. They are available at any retailer that sells batteries or at an Mazda dealer close to Winter Garden. Using the right type of battery will ensure that your key fob works properly.
Replace the cap of the battery and then replace the battery. Be careful not to scratch the small rubber ring the battery rests on. Press the two halves together until you can hear the click.
How do I reset the Keyless Entry System
The key fob inside your Mazda 3 is not only a convenience, it's also an important security feature. If you lose your key, or have it stolen, the car will not start even if you've got the spare key fob. This is because the fob that you have to be reprogrammed at the dealership in order to work once more. This can be a costly and stressful experience therefore it's a great idea to understand how to reset the system yourself.
To reset the system, remove the battery for 15 minutes. This will take out any remaining electricity in the on-board computer. Then, disconnect the LF ECU and demand switch connectors. Then, check continuity between the following terminals:
Insert the key into the slot, then turn the ignition ON. Turn off the ignition after about five minutes. The key's information has been transferred to the computer of your vehicle and the new fob will start your vehicle. You can program as many fobs as you want however only one must be used at any particular time. This stops unauthorized individuals from copying the key and gaining access to your car. You can purchase a brand new keyfob online, but it will still need to be cut and programmed by a dealer.