7 Small Changes You Can Make That'll Make The Difference With Your Mazda 6 Key How to Add, Change, and Reprogram a Mazda 3 Spare Key

If you've dropped your key fob on the floor or it has stopped working, it's best to have a spare key handy. This article will go over everything you should be aware of adding, changing, or changing the programming of your Mazda 3 key fobs.

Be aware that some keys require programming from an expert locksmith, while others do not. Use only genuine Mazda replacements to replace your key fob.

How do I add a spare key?


You can also add a second key if you don't have a spare key or when you accidentally damage your current one. To do this, you'll need an incredibly small screwdriver, a flathead screwdriver, and the new CR2025 batteries. Once you have these items you can open up the key fob to change the battery. First look for the key release button for the auxiliary key. It's located beneath the metal part. It's easy to locate. Once you hit the button, the back cover should fall off right away. Then, you can insert the head of the screwdriver into the notch or the space at the top of the metal piece and pry it off.

Once the auxiliary key has been removed, insert the new or spare key into the slot. Set the ignition ON and wait for approximately five seconds, and then turn it to off. This will allow the system to recognize the new key and start your vehicle in the future.

It's important to know that you can only program up to three keys on your Mazda 3. You don't want to have to utilize more than two key fobs to start your car. mazda dealership key replacement is a safety measure to prevent unauthorized users from activating your keys and launching your vehicle.

How do I reprogram a spare key

It's a smart idea be aware of how to reprogram a spare key in the event that your original key gets lost or stolen. This will stop unauthorised people from starting your car, or stealing it. This should work with any Mazda. You will require two keys that work to begin the reprogramming process. If you don't own two working keys, you'll have to bring your car to the dealership to complete the process.

Begin by stepping into your driver's seat, and shutting the door, excluding for the one that's opened. Turn the ignition on and insert the first functioning key. Wait five seconds before removing the key. Repeat the process with the second key.

After you've completed programming your new key, you should have three working keys you can use to start your vehicle in the future. Test each key to be sure that they're operating correctly before putting them away.

You should think about buying an extra Mazda 3 remote, especially when your car is susceptible to problems. You can find one online or at a local automotive store, but make sure to read reviews before buying so you aren't buying an item 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 vehicle. It's easy to replace the battery yourself and save money at the dealer.

The first step is to press the auxiliary key button on the back of the key fob. This will take out the key from the metal and reveal an opening on each side of the case. Put the flathead into one of these slots and then gently pull the two halves apart. When the battery is fully exposed, remove the case and put it somewhere you will not forget about it.

Be sure to bring a new battery ready prior to beginning. They can be found at any store that stocks batteries or at a Mazda dealer close to Winter Garden. The right kind of battery is vital to ensure that your key fob functions correctly.

Then, place the new battery in the correct place and replace the cap of the battery. Be careful not to scratch the rubber ring on which the battery rests. Finally press the two parts of the key fob together until you hear the sound of a click.

How to Reset the Keyless Entry System

The key fob that you have in your Mazda 3 is not only an option for convenience, it's an important security feature. If you lose your key or have it stolen the car will not start even if you have the spare fob. The key fob has to be reprogrammed by a dealer to make it work again. It can be a costly and frustrating experience and it's a good idea to know how to reset the system yourself.

To reset the system, unplug the battery for around 15 minutes. This will erase any residual electricity in the on-board computer. Next, disconnect both the LF-ECU and demand switch connectors. Check continuity between the following terminals.

Place the key into the slot, and switch on the ignition. The ignition should be turned off after approximately five minutes. The key information will now be transferred to your vehicle's computer, and the new fob will be able to start your vehicle in the future. You can program up to three fobs however, you should only use one at a time. This will prevent unauthorized persons from copying your key and getting ahold of your vehicle. You can purchase a brand new keyfob online, but it will still need to be programmed and cut by an authorized dealer.