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How to Add, Change, and Reprogram a Mazda 3 Spare Key It's a good idea always to have a spare key on hand no matter if you've dropped your keyfob, or it stopped working. This article will show you how to add, modify or reprogramme your Mazda 3 keyfobs. A word of warning Certain keys need to be programmed by a professional locksmith or dealer, while others do not. Only use genuine Mazda replacements to replace your key fob. How do I add a spare key? If you're unable to receive a spare keys from the dealership when you buy your Mazda 3 or accidentally break the one you have, don't worry -- there is still an option to make another key. You'll need to use an flat-head screwdriver and a CR2025 new battery. Once you've got these items you can open the key fob and change the battery. Locate the auxiliary key release. It's on the underside of the metal part and is easy to find. The back cover should slide off when you press the button. Next, place the head of the screwdriver into the notch or space at the top of the metal part and pull it away. After the auxiliary key has been removed, insert the new or spare key into the slot. Turn on the ignition and wait for about five seconds, then set it to OFF. This will register the new key's information to the system, allowing it to start your vehicle in the future. It is important to remember that you can only program up to three keys for your Mazda 3. The final thing you want is to have more than two functioning key fobs, and not be able to get your car started. This is a precautionary measure to stop anyone who is not authorized from activating your keys and then starting your vehicle. How to Reprogram a spare key If you have a spare key, it's best to know how to reprogram it in case the original key you had is lost or stolen. This will stop unauthorized persons from abusing your vehicle and re-starting it. This procedure should work with any Mazda however you'll need two working keys to start the reprogramming. If you don't have two working keys, you'll need to bring your vehicle to the dealer to get it done. Begin by getting in your driver's seat, and close the door, with the exception for the one that's opened. Set the ignition to ON and insert the initial working key. Take five seconds before removing the key. Repeat the process with the second key. After you finish programming your new key, you'll have 3 keys that will be able to start your vehicle in the future. Before saving each key, be sure it's functioning correctly. It's a good idea purchase an extra Mazda 3 key fob, especially if you're a driver who frequently loses their key or has other issues with it. You can find one online or at your local automotive retailer, but make sure to read reviews prior to purchasing so you can avoid purchasing an item that isn't compatible with your vehicle.
There's nothing more frustrating than discovering that the battery in your key fob has died and you can't unlock your car. It's easy to change the battery yourself and save money at the dealer. Be sure to have a new battery ready before you start. These batteries can be purchased at any store selling batteries or from a Mazda dealer in Winter Garden. The right type of battery is vital to ensure that your keyfob is working properly. Then, place the new battery in place and replace the battery cap. Be careful not to damage the small rubber ring that the battery sits on. Finally, press the two parts of the key fob together until you hear an audible click. How do you reset the Keyless Entry System The key fob inside your Mazda 3 is not only an option for convenience, it's an important security feature. If you lose your key or had it stolen the car will not start even if you've got the spare fob. The key fob has to be reset by the dealer to enable it to function again. This can be a costly and frustrating ordeal It's a good idea to understand how to reset the system yourself. Remove the battery from the system for 15 minutes. This will remove any remaining power from the on-board computer. The next step is to disconnect the LF-ECU and demand switch connectors. Check for continuity between the terminals. To program a new key or a spare, insert it into the slot and turn the ignition to ON. Put the key in for around five seconds, and then turn it off. The key information will now be added to the vehicle's computer, and the new fob will be able to start your car in the future. You can program up to three fobs but you should only use one at each time. This will prevent unauthorized persons from copying your key and getting ahold of your vehicle. You can purchase a brand new keyfob online, but it still needs to be programmed and cut by an authorized dealer. |
