How to Add, Change, and Reprogram a Mazda 3 Spare Key

Whether you dropped your key fob on the floor or it simply stopped working, it's a good idea to have an extra key in your pocket. This article will explain everything you need to be aware of adding, changing, or reprogramming your mazda extra key 3 key fobs.

Certain keys require programming from professional locksmiths, while others don't. Make sure you only use official mazda 2 key fob replacement replacements for your key fob.

How do I 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 your current one Don't fret, there's a way to add another key. To do this, you'll need an inexpensive flathead screwdriver as well as a new CR2025 battery. Once you've got the tools then it's time to open the key fob. Find the auxiliary key release. It's located on the underside of the metal piece and is easy to find. The cover that covers the back should come off as soon as you press the button. Then, you can insert the screwdriver's head into the notch or the space at the top of the metal component and then pull it off.

Once the auxiliary key is removed, insert your new or spare key into the slot. Turn the ignition on and then wait for around five seconds, then set it to OFF. This will register the new key's details to the system that will allow it to start your car in the future.

It's important to keep in mind that you can only program up to three keys for your Mazda 3. The most important thing is to have more than two functioning key fobs but not be in a position to get your vehicle started. This is a security measure to stop anyone who is not authorized from activating your key fobs and starting your car.

How to reprogram an unrepaired key

It's a smart idea be aware of how to reprogram an extra key in the event that the original key is lost or stolen. This will stop unauthorised people from starting your vehicle or taking it. This will work with any Mazda. You'll require two keys that work to begin the reprogramming. If you don't own two working keys, you'll need bring your car 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 been opened. Set the ignition to ON and then insert the first working key. After five seconds, take the key out and repeat the process with the second working key.

Once you've finished programming your new key, you should have three working keys you can use to start your vehicle in the future. Test each key to be sure that they're operating correctly before throwing them away.

You should consider buying a spare Mazda 3 remote, especially when your car is susceptible to issues. 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 an item that isn't compatible with your car.
mazda 3 Lost Key around 15 minutes. This will eliminate any remaining electric current from the onboard computer. Then, disconnect both LF-ECU connector and the demand switch connectors. Verify the continuity between the next terminals.

Place the key in the slot, and turn on the ignition. Switch off the ignition after approximately five seconds. The information from the key will be added to your vehicle's computer and the new fob will be able start your car in the future. You can program up to three fobs but you must only use one at a time. This prevents unauthorized people from copying your key and getting ahold of your car. You can purchase a brand new key fob online, however you'll still have to visit an expert locksmith or dealer to cut it and get it programmed.