How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to keep an extra key in your pocket no matter if you've dropped your keyfob, or it stopped working. This article will go over everything you need to know about the process of adding, changing, and changing your Mazda 3 key fobs.
A word of caution Certain keys need to be programmed by a professional locksmith or dealer, while other keys do not. Make sure you use only genuine Mazda replacements to replace your key fob.
How do you 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 the one you already have. You'll need to use a flathead screwdriver, and a CR2025 new battery. Once you've got these tools, it's time to remove the key fob to change the battery. First find the button that allows you to release the key. It's located on the underside of the metal part. It's easy to locate. When you press the button, the back cover should slide off immediately. Then, put the screwdriver's tip into the notch at the top or the space and pull the metal piece off.
After the auxiliary key has been removed, insert your new or spare key into the slot. Switch the ignition on and wait for five seconds, then turn it to off. This will allow the system to recognize the new key and begin your vehicle in the future.
It is only possible to program three keys in your Mazda 3. You don't want to use more than two key fobs to start your vehicle. This is a safety measure to stop unauthorised users from activating your keys and starting your vehicle.
How to reprogram a spare key
It's a good idea to learn how you can reprogram an extra key in the event that your original key becomes lost or stolen. This will keep unauthorized people from getting into your car and causing damage to it. This procedure should work with any Mazda but you'll need two keys working to begin the reprogramming process. If you don't have two keys that work then it's best to bring your Mazda to a dealer to have this completed.
Begin by getting into your driver's seat, and shutting the door, excluding for the one that's open. Put the first working key into the slot, then set the ignition to the ON position. Wait for five seconds, then take the key out and repeat the process with the second working key.
After you've completed programming your new key, you should have three keys that you can use to start your vehicle in the future. Before placing each key in storage, make sure it's working properly.
It is advisable to purchase an extra Mazda 3 remote, especially if your car is prone to problems. You can buy one online or at your local auto retailer, but make sure to read reviews before buying so that you aren't purchasing an item that isn't compatible with your car.
How to change the battery on a spare key
There's nothing more frustrating than finding that your key fob battery has gone out and you're not able to unlock your car. It's easy to change the battery yourself and save money at the dealership.
The first step is to press the auxiliary key button that is located on the back of the key fob. This will release the key made of metal and reveal two slots on the opposite side of the case. Put the flathead into one of these slots and then gently pry the two halves apart. Once the battery has been fully exposed, remove the case and place it somewhere you will not forget it.
Before you start, make sure that you have a brand new replacement battery. These batteries can be purchased at any store that sells batteries or from a Mazda dealer in Winter Garden. The right type of battery is crucial to ensure that your keyfob works properly.
Next, put the replacement battery in the correct place and replace the cap on the battery. Be careful not to scratch the rubber ring on which the battery rests. Then press the two parts of the key fob until you hear the sound of a click.
How can I reset the Keyless Entry System
The Mazda 3 key fob is not just a piece of equipment for convenience. It also serves as a security measure. The car won't start if the key is stolen or lost, even if you've got a spare key fob. The key fob needs to be reset by the dealer to allow it to work again. It can be a frustrating and costly ordeal. Therefore, it's recommended to understand how you can reset the system.
To reset the system, remove the battery for about 15 minutes. This will clear any residual electric current from the onboard computer. Then, disconnect mazda key fobs and demand switch connectors. Then, check continuity between the following terminals:
To program an entirely new key or spare, place it in the slot and turn the ignition to ON. The ignition should be turned off after about five minutes. The key's details will be added to the vehicle's computer and the new fob will be able to start your car in the future. You can program as many fobs as you desire however only one should be in use at any particular time. This stops unauthorized individuals from copying the key and gaining access to your car. You can purchase a brand new key fob on the internet, but you'll still need to visit a dealer or locksmith to cut it and get it programmed.