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

If you've dropped your key fob on the ground or it simply stopped working, it's an excellent idea to keep an extra key in your pocket. This article will go over everything you should be aware of when the process of adding, changing, and changing your mazda 3 key replacement cost 3 key fobs.

Note: Some keys require programming from an experienced locksmith, whereas others don't. Only use authentic Mazda replacements to replace your key fob.

How do you add a spare key

If you're not fortunate enough to find a spare key from the dealer when you buy your Mazda 3 or accidentally break the one you have Don't fret, there's a way to add another key. To do this, you'll need a small flathead screwdriver and the new CR2025 batteries. Once you have these items then it's time to access the key fob and change the battery. First find the key release button for the auxiliary key. It's located on the underside of the metal part and is easy to locate. Once you hit the button, the back cover should slide off immediately. Then, place the screwdriver's tip into the notch at the top or in the space, and pull the metal piece 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 about five seconds before turning it to OFF. This will allow the system to recognize the new key and begin your vehicle in the future.

You can only program three keys into your Mazda 3. The most important thing is to have more than two functioning key fobs but not be in a position to get your vehicle started. This is a safety measure to stop unauthorized users from activating your keys and then starting your vehicle.

How to reprogram an unrepaired key

If you have a spare key, it's best to be aware of how to program it if the original key you had is stolen or lost. This will keep unauthorised persons from opening your car or taking it. This should work with any Mazda. You'll need two keys that are functioning to start the reprogramming process. If you don't own two working keys, you should take your mazda replacement key cost to the dealer to have this completed.

Begin by getting in your driver's seat, and close the door, except for the one that's open. Put the first working key into the slot, then turn the ignition to the ON position. Then wait five seconds before taking out the key. Repeat with the second key.

After you've programmed your new key, you should have three keys that work to start your car in the near future. Before placing each key in storage, make sure that it's functioning properly.

It's a good idea to purchase an extra Mazda 3 key fob, especially if your car is one who frequently loses their key or has other issues with it. You can find one online or at a local automotive retailer, but make sure to read the reviews prior to purchasing so you aren't buying an item that isn't compatible with your vehicle.

How do you change the battery with a spare key?

There's nothing more frustrating than finding that your key fob battery has been damaged and you're unable to unlock your vehicle. It's a good thing that it's simple to replace the battery and save some money at the dealer.

Press the auxiliary button on the back of the keyfob. This will remove the key from the metal and reveal two slots on the opposite side of the case. Use the screwdriver's flathead to push it into one of these slots. Then, gently take apart the two parts of the case. Once the battery is fully exposed, take it out and place the case in a place where you will not forget it.

Make sure you have an additional battery prior to starting. They can be bought from any store that sells batteries or from a Mazda dealer in Winter Garden. Choosing the right battery will ensure that your key fob is working perfectly.

Next, put the replacement battery in place and replace the battery cap. Be careful not to scratch the small rubber ring the battery sits on. Then, press the two parts of the key fob together until you hear the sound of a click.

How do you reset the Keyless Entry System

The Mazda 3 key fob is not just a convenience. It also serves as an element of security. If you lose your key, or have it stolen the car won't start even if you have the spare key fob. The key fob needs to be reprogrammed by a dealer to make it work again. It can be a stressful and costly process. Therefore, it's best to learn how to reset the system.

Disconnect the battery from the system for 15 minutes. This will eliminate any residual electric current from the onboard computer. Next, disconnect the LF-ECU and demand switch connectors. Verify the continuity between the next terminals.

Place the key in the slot and turn the ignition ON. Turn off the ignition after about five minutes. The key's information has been added to the vehicle's computer and the new mazda key fob is able to start your car. You can program up to three fobs, however, you should only use one at each time. This will stop unauthorized individuals from stealing your key and gaining access to your car. You can buy a new keyfob online, however it will still need to be programmed and cut by a dealer.