The 12 Most Obnoxious Types Of The Twitter Accounts That You Follow 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 the keyfob or it was unable to function. This article will show you how to add, alter or reprogramme the Mazda 3 keyfobs.

Note: Some keys require programming from an expert locksmith, while others don't. Use only official Mazda replacements to replace your key fob.

How to add an extra key

You can add a second key if you don't have a spare key or if you accidentally damage the one you already have. You'll need to use a flathead screwdriver and a new CR2025 battery. Once you've got the tools you need, it's time to open the key fob. Find the key release auxiliary. The button is on the bottom of the metal part. It's easy to find. When you press the button, the back cover should fall off right away. Next, place the head of the screwdriver into the notch, or the spacing on the top of the metal piece and pull it away.

Once the auxiliary key is removed, insert the new or spare key into the slot. Set the ignition to ON, and wait for about five seconds before turning it to off. This will add the new key's details to the system which will allow it to start your car in the future.

You can only program three keys in your Mazda 3. You don't want to have to utilize more than two key fobs in order to start your vehicle. This is a security precaution designed to prevent unauthorised users, like valet drivers who are not authorized to use your key and starting your vehicle.

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 the original key you had is stolen or lost. This will prevent unauthorised persons from abusing your vehicle and re-starting it. This procedure should work with any Mazda however, you'll require two keys that work to begin the reprogramming. If you don't have two working keys, you should take your car to a dealer to get this completed.

Begin by putting yourself in the driver's seat, and closing the door, except for the one that's already opened. Turn the ignition on and insert the first functioning key. Wait five seconds before removing the key. Repeat with the second key.

After you've programmed your new key, you'll have 3 keys that will be able to start your car in the future. Check each key to make sure they're working correctly before putting them away.

You should consider buying a spare Mazda 3 remote, especially when your car is susceptible to problems. You can purchase one on the internet or at a local automotive store. Make sure to look up reviews before you purchase to ensure that you don't purchase the wrong key fob that isn't compatible with your car.

How to Change the Battery on a spare Key

There's nothing worse than finding that the battery for your key fob has been damaged and you're unable to unlock your car. Luckily, mazda 3 key replacement to replace the battery and save some money at the dealership.

The first step is to press the auxiliary key button on the back of the key fob. This will release the key made of metal and reveal a slot on each side of the case. The flathead should be inserted into one of these slots and then gently pull the two halves of the case apart. When the battery is completely exposed, take it out and place it in a safe place somewhere safe from being lost.

Be sure to have an additional battery prior to starting. These batteries can be purchased at any store selling batteries or from a Mazda dealer in Winter Garden. Using the right type of battery will ensure that your key fob operates perfectly.

Then, put the new battery in the correct place and replace the cap on the battery. Be careful not to damage the small rubber ring that the battery rests on. The two halves should be pressed together until you hear a click.

How do I reset a Keyless Entry System

The Mazda 3 key fob is not just a convenience. It's also a security feature. If you lose your key or had it stolen, the car will not start, even if you have the spare fob. This is because the fob that you have to be reset at the dealership in order to work properly. It can be a frustrating and costly experience. Therefore, it's recommended to learn how to reset the system.

Disconnect the battery from the system for 15 minutes. This will eliminate any residual power from the on-board computer. Then, disconnect the LF -ECU and demand switch connectors. After that, test for continuity between the following terminals:

To program the new key or spare, insert it into the slot and turn the ignition to ON. Keep the key in place for about five seconds, then switch off. The key information will now be added to your vehicle's computer, and the new fob will be able start your car in the future. You can program as many fobs as you want but only one can be used at any certain time. This will prevent unauthorised people from stealing your key and gaining access to your car. You can purchase a replacement key fob online, but you'll still have to visit a dealer or locksmith to cut it and programmed.