How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to keep an extra key at hand, whether you dropped the keyfob you were using or it has stopped working. This article will go over everything you need to be aware of when adding, changing, and programming your mazda keys locked in car 3 key fobs.
A word of warning Certain keys require programming by a professional locksmith or dealer, whereas others don't. Use only official Mazda replacements to replace your key fob.
How do I add an extra key
You can add a second key if you don't have a spare key available or if you accidentally damage your existing one. You'll need to use a flathead screwdriver, and an CR2025 battery. Once you've got the tools, it's time to open up the key fob to change the battery. First, locate the button that allows you to release the key. The button is located on the underside the metal part. It's easy to locate. When you press the button, the back cover should fall off right away. Then, insert the head of the screwdriver into the notch or the space on the top of the metal component and pry it off.
Insert your spare key or a new one into the slot after you have removed the secondary key. Set the ignition to ON and wait for about five seconds before setting it to OFF. This will add the new key's information into the system, allowing it to start your car in the future.
You can only program three keys into your Mazda 3. You don't want to have to use more than two keys to start your vehicle. This is a security measure to stop unauthorised users from activating your keys and launching your car.
How to Reprogram a spare key
If you have a spare key it's a good idea know how to program it in the event the original key you had is stolen or lost. This will stop unauthorised people from taking your car and then starting it. This will work with any mazda keys. You will need two keys that are functioning to begin the reprogramming. If you don't own two keys that function, you should take your vehicle to a dealer to get this completed.
Begin by stepping into your driver's seat and shutting the door, excluding for the one that's already opened. Set the ignition to ON and insert the first functioning key. Then wait five seconds before taking out the key. Repeat with the second key.
Once you've programmed your new key, you should have three working keys you can use to start your vehicle in the future. Check each key to make sure they're working correctly before putting them away.
It's a good idea buy a spare mazda remote key replacement 3 key fob, especially if you're a driver who has a tendency to lose their keys or has other issues with it. You can find one online or at a local automotive store, but be sure to read the reviews before buying so you aren't buying an item that isn't compatible with your vehicle.
How do I change the battery on a Spare Key
It's depressing to find out that your key fob has failed, and you are unable to unlock your car. It's easy to change the battery yourself and save money at the dealer.
The first step is to press the auxiliary key button located on the back of the key fob. This will remove the metal key that is used as an auxiliary key, and expose an opening on both sides of the case. Press the flathead into one of these slots, and then gently pull the two halves of the case apart. Once the battery is fully exposed, remove it and place the case somewhere that you won't forget about it.
Be sure to have a replacement battery before you start. 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 correctly.
Replace the cap on the battery, and then install the new battery. Be careful not to damage the small rubber ring the battery is placed on. Finally press the two halves of the key fob together until you hear the sound of clicking.
How to Reset a Keyless Entry System
The key fob in your mazda 2 car key 3 is not only an added convenience, but it's also an important security feature. The car won't start if the key is lost or stolen even if you have a spare key fob. This is because the key fob has to be reprogrammed at the dealership in order to work properly. This could be a costly and frustrating ordeal, so it's a good idea to know how to reset the system yourself.
To reset the system, disconnect the battery for around 15 minutes. This will remove any residual electrical current from the computer on board. Then, disconnect both LF-ECU connector as well as the demand switch connectors. Check for continuity between the following terminals:
To program the new key or spare, insert it into the slot and turn the ignition to ON. Switch off the ignition after about five seconds. The key's details are now added to the computer in your car and the new fob can start your car. You can program up to three fobs, however, you should only use one at each time. This will stop unauthorised people from copying the key and gaining access to your car. You can purchase a new keyfob on the internet, but it must be programmed and cut by an authorized dealer.