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How to Add, Change, and Reprogram a Mazda 3 Spare Key
If you've dropped your key fob on the floor or it simply stopped working, it's always recommended to keep an extra key in your pocket. This article will show you how to add, alter or reprogramme your Mazda 3 keyfobs.
A word of warning: some keys require programming by a locksmith professional or dealer, whereas others don't. Make sure you only make use of official Mazda replacements for your key fob.
How to Add a Spare Key
If you're not lucky enough to receive a spare keys from the dealership when you purchase your Mazda 3 or accidentally break your current key but don't worry, there is still the option of adding another key. To accomplish this, you'll require a small flathead screwdriver and the new CR2025 batteries. Once you've got these tools and are ready to open the key fob and replace the battery. First, locate the button that allows you to release the key. It's located under the metal component and is easy to locate. The back cover should come off the moment you press the button. Then, place mazda 3 car keys into the notch at the top or the space, and take the metal part away.
After the auxiliary keys are removed, insert your new or spare key into the slot. Turn on the ignition and wait for 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.
It is important to remember that you can only program up to three keys for your Mazda 3. The most important thing is to have more than two working key fobs and not being able to get your car started. This is a safety precaution designed to prevent unauthorized users, like valet drivers, from activating your key and starting your car.
How to Reprogram a Spare Key
If you have a spare key, it's a good idea to be aware of how to program it if the original key you had is stolen or lost. This will stop unauthorized persons from stealing your car and starting it. This will work with any Mazda. You will need two keys that are functioning for the reprogramming to begin. If you don't have two functioning keys, you'll need to bring your car to the dealer to get it done.
Start by stepping into driver's position, and close all the doors, except the one that is open. Insert the first working key into the slot, then turn the ignition to ON. For five seconds, take the key out and repeat the process with the second key.
Once you've completed programming your new key, you should have three keys that will allow you to start your car in the near future. Test each key to make sure that they're working properly before throwing them away.
It is advisable to purchase a spare Mazda 3 remote, especially in cases where your car is prone to issues. You can purchase one online or at your local auto store. Make sure you go through reviews prior to purchasing to ensure you don't buy an item that isn't compatible with your vehicle.
How do I change the battery on a spare key
There's nothing more frustrating than finding that the battery in your key fob has been damaged and you're 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 on the back of the key fob. This will release the metal key auxiliary to reveal a slot on both sides of the case. Press the flathead into one of these slots, and then gently pry the two halves of the case apart. Once the battery is fully exposed, remove it and put it away in a place where you will not forget it.
Before you begin, be sure that you have a brand new replacement battery. You can find these at any store that stocks batteries or at an Mazda dealer near Winter Garden. Using the right type of battery will ensure that your key fob is working properly.
Replace the cap on the battery, and then replace the battery. Be careful not to damage the small rubber ring the battery is placed on. The two halves should be pressed together until you hear a click.
How to Reset the system's 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 lost your key or had it stolen, the car will not start even if you've got the spare fob. This is because the key fob needs to be reprogrammed by the dealership in order to work properly. This can be an expensive and frustrating experience and it's a good idea to know how to reset the system yourself.
To reset the system, disconnect the battery for 15 minutes. This will eliminate any remaining electrical current from the computer on board. Then, disconnect the LF -ECU and demand switch connectors. Verify the continuity between the next terminals.
Place the key into the slot, then switch on the ignition. Turn off the ignition after about five minutes. The key information is now added to the vehicle's computer and the new fob will start your vehicle. You can program up to three fobs, however, you should only use one at each time. This will stop unauthorized individuals from stealing your keys and gaining access to your vehicle. You can buy a new keyfob from the internet, however it must be programmed and cut by an authorized dealer.