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https://www.thekeylab.co.uk/mazda-car-keys/
How to Add Change and Reprogram a Mazda 3 Spare Key Its a good idea always to keep an extra key in your pocket in case you lose your keyfob or it stopped working This article will cover everything you must know about adding changing and reprogramming your Mazda 3 key fobs A word of caution Some keys require programming by a locksmith professional or dealer while others dont Make sure to make use of official Mazda replacements for your key fob How to Add a Spare Key You can also add an additional key if you dont have a spare key or in the event that you break the one you have To accomplish this youll need a small screwdriver with a flat head and the new CR2025 batteries Once youve got these tools you can remove the key fob and change the battery Find the key release auxiliary Its on the underside of the metal component and is easy to find When you hit the button the cover will fall off instantly Then you can insert the screwdrivers head into the notch or the space on the top of the metal part and pry it off After the auxiliary key has been removed insert your new or spare key into the slot Set the ignition ON and wait for five seconds before turning it to off This will register the new information on the key to the system which will allow it to start your car in the future It is important to remember that you can only program up to three keys on your Mazda 3 The last thing you want is to have more than two functioning key fobs and not be in a position to get your car started This is a security measure to stop unauthorised users from activating your keys and then starting your car How to Reprogram a spare key Its a smart idea to know how you can reprogram a spare key in the event that the original key is lost or stolen This will stop unauthorised people from starting your vehicle or stealing it This process is compatible with any Mazda but youll need two working keys to start the reprogramming If you dont have the two working keys youll need take your vehicle to the dealership to have it done Begin by stepping into the drivers position and close all the doors with the exception of the one that is open Set the ignition to ON and then insert the first working key Wait five seconds before removing the key Repeat the process with the second key After youve programmed your new key youll have three keys that you can use to start your car in the future Before storing each key make sure its functioning correctly You should think about buying a spare Mazda 3 remote especially in the event that your vehicle is prone to problems You can buy one online or at your local auto store Make sure mazda 3 spare key go through reviews prior to purchasing so that you dont get the wrong key fob that isnt compatible with your car How to change the Battery on a spare key Its very frustrating to discover that the key fob you used to use has gone out and youre unable to unlock your car Its simple to replace the battery yourself and save money at the dealer The first step is to press the auxiliary key button located on the back of the key fob This will remove the key auxiliary to reveal a slot on both sides of the case Use the screwdrivers flathead to push it into one of these slots Then gently pry apart the two sides of the case When the battery is completely exposed take it out and put it away somewhere you wont forget it Make sure you have a replacement battery before you begin They can be bought from any store that sells batteries or from a Mazda dealer in Winter Garden The correct battery is crucial to make sure that your keyfob functions properly Replace the battery cap and then put in the new battery Be careful not to damage the small rubber ring the battery rests on Finally press the two parts of the key fob until you hear the sound of clicking How to reset a Keyless Entry System The Mazda 3 key fob is not just a convenience It also serves as an element of security The car wont start if the key is stolen or lost even if you have an extra key fob This is because the key fob needs to be reset at the dealership to work again This can be an expensive and timeconsuming process therefore its a great idea to understand how to reset the system yourself To reset the system remove the battery for around 15 minutes This will eliminate any remaining electrical current from the computer on board Then disconnect the LFECU connector as well as the demand switch connectors Check continuity between the following terminals To program a new key or a spare insert it into the slot and turn the ignition to ON Turn off the ignition after about five minutes The keys details are now added to the computer in your car and the new fob will start your car You can program up to three fobs but you must only use one at one time This prevents unauthorized people from copying your key and getting ahold of your car You can purchase a new key fob online however youll still need to go to a dealer or locksmith to have it cut and programmed