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

It's a good idea always to have an extra key on hand in case you lose the keyfob or it stopped working. This article will tell you how to add, change or reprogramme the Mazda 3 keyfobs.

A word of caution Certain keys require programming by a professional locksmith or dealer, while others do not. Only use official Mazda replacements to replace your key fob.

How to add a spare key

If you're not fortunate enough to find a spare key from the dealership when you buy your mazda car key replacement 3 or accidentally break your current key do not fret -- there's still an option to get another key. You'll need to use a flathead screwdriver and a new CR2025 battery. Once you've got these tools and are ready to open up the key fob to change the battery. First, locate the key release button for the auxiliary key. It's located on the underside of the metal portion and is easy to find. The back cover should come off the moment you press the button. Then, you can insert the screwdriver's head in the notch at the top or the space, and take the metal part away.

Once the auxiliary key has been removed, insert the new or spare key into the slot. Set the ignition to ON and wait for five seconds before turning it to OFF. This will add the new information on the key to the system which will allow it to start your car in the future.

It is only possible to program three keys to your Mazda 3. You don't want to have to utilize more than two key fobs to start your car. This is a safeguard to stop unauthorised users from activating your keys and starting your car.

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 your original key gets lost or stolen. This will stop unauthorized persons 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 process of reprogramming. If you don't have two working keys, you'll have to bring your vehicle to the dealership to get it done.

Begin by getting in your driver's seat and close the door, with the exception for the one that's open. Turn the ignition on and then insert the first working key. After five seconds, remove the key. Repeat the process with the second key.

After programming your new key, you'll have 3 keys that work to start your car in the future. Before storing each key, make sure that it's working correctly.

It is advisable to purchase a spare Mazda 3 remote, especially in cases where your car is prone to problems. You can find one online or at your local auto retailer, but make sure to read reviews before buying so that you can avoid purchasing one that's not compatible with your vehicle.

How do you change the battery on a spare key

There's nothing worse than finding that your key fob battery has failed and you are unable to unlock your car. Luckily, it's easy to replace the battery and save some money at the dealership.

Press the auxiliary key button on the back of the keyfob. This will remove the metal key auxiliary to reveal two slots on the sides of the case. Put the flathead screwdriver in one of these slots. Then, gently pry apart the two sides of the case. When the battery is completely exposed, take it out and set aside the case somewhere safe from being lost.

Make sure you have an additional battery before you begin. These batteries can be purchased at any store that sells batteries or from a Mazda dealer in Winter Garden. Using the right type of battery will ensure that your key fob functions perfectly.

Replace the battery cap and then install the new battery. Be careful not to damage the small rubber ring the battery rests on. Then, press the two halves of the key fob together until you hear a click.

How to reset a Keyless Entry System

The key fob in your Mazda 3 is not only an added convenience, but it's also an important security feature. If you lose your key or have it stolen the car won't start even if you have the spare key fob. This is because the key fob needs to be reprogrammed at the dealership in order to function properly. This can be a costly and time-consuming process therefore it's a great idea to understand how to reset the system yourself.

To reset the system, unplug the battery for approximately 15 minutes. This will clear any residual electrical current from the computer on board. Then, disconnect the LF ECU and demand switch connectors. Then, verify the continuity between the following terminals:

Insert the key into the slot and turn the ignition ON. Turn off the ignition after approximately five minutes. The key's information has been added to the vehicle's computer and the new fob will start your car. You can program as many fobs as would like but only one can be utilized at any certain time. This will stop unauthorized individuals from stealing your keys and gaining access to your vehicle. You can purchase a replacement mazda key; navigate to this site, key fob on the internet, but you'll still need to go to an expert locksmith or dealer to have it cut and programmed.