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

It's a good idea to keep an extra key in your pocket in case you lose your keyfob or it was unable to function. This article will show you how to add, change, and reprogramme your Mazda 3 keyfobs.

Certain keys require programming from an experienced locksmith, whereas others don't. Make sure to use official mazda key cutting (visit this site) replacements for your key fob.

How to add a spare key

You can also add an additional key in case you don't have a spare key available or if you accidentally break your current one. To accomplish this, you'll need a small flathead screwdriver and the new CR2025 batteries. Once you have these items, it's time to remove the key fob and change the battery. Locate the auxiliary key release. It's located on the bottom of the metal portion. It's easy to locate. The cover on the back should fall off as soon as you press the button. Then, put the screwdriver head into the notch at the top or the space and remove the metal part.

Once the auxiliary key has been removed, insert your new or spare key into the slot. Switch the ignition on and wait for about five seconds, then turn it to OFF. This will register the new key's information to the system which will allow it to start your vehicle in the future.

You can only program three keys on your Mazda 3. The final thing you want is to have more than two working key fobs and not being capable of getting your vehicle started. This is a security measure to stop anyone who is not authorized from activating your keys and starting your car.

How to Reprogram a Spare Key

It's a smart idea to learn how you can reprogram an extra key in the event that your original key gets lost or stolen. This will keep unauthorized people from getting into your car and causing damage to it. This should work with any mazda replacement key fob. You will require two keys that are working to begin the reprogramming process. If you don't own two keys that work it's recommended to take your Mazda to a dealer to have this done.

Begin by getting in your driver's seat, and close the door, except for the one that's been opened. Set the ignition to ON and insert the first working key. For five seconds, take the key out and repeat the process with a second working key.

After you've programmed your new key, you should have three working keys that you can use to start your vehicle in the future. Before saving each key, be sure that it's functioning properly.

It is advisable to purchase an extra Mazda 3 remote, especially in cases where your car is prone to problems. You can buy one online or at your local auto store. Make sure you review the reviews before buying to ensure that you don't get an item that isn't compatible with your car.

How to change the Battery on a Spare Key

It's a nightmare to discover that the key fob you used to use has gone out and you're in a position to not unlock your car. It's easy to replace the battery yourself and save money at the dealer.

Press the auxiliary key button at the back of the keyfob. This will remove the key made of metal and reveal the slots on both sides of the case. Insert the flathead screwdriver into one of these slots. Then, gently break the two parts of the case. Once the battery has been fully exposed, remove the case and put it somewhere that you will not forget about it.

Be sure to bring a new battery ready before you start. These batteries can be purchased at any retailer that sells batteries or from a Mazda dealer in Winter Garden. The correct type of battery is vital to ensure that your keyfob works properly.

Replace the cap on the battery, and then insert the new battery. Be careful not damage the rubber ring that holds the battery. Finally press the two halves of the key fob together until you hear an audible click.

How can I reset the Keyless Entry System

The key fob inside your Mazda 3 is not only an added convenience, but it's also an important security feature. If you lose your key or had it stolen, the car will not start, even if you have the spare key fob. The key fob has to be reprogrammed by the dealer to allow it to work again. This could be a costly and frustrating ordeal therefore it's a great idea to learn how to reset the system yourself.

Remove the battery from the system for 15 minutes. This will eliminate any remaining electricity from the onboard computer. Next, disconnect the LF-ECU and demand switch connectors. Check for continuity between the following terminals:

To program a new key, or a spare, place it in the slot and set the ignition to ON. Keep the key in place for about five seconds, then turn it off. The information from the key will be added to your vehicle's computer and the new fob will be able start your car in the future. You can program any number of fobs you desire, but only one should be used at a given time. This will stop unauthorised people from copying your key and gaining access to your vehicle. You can purchase a new keyfob from the internet, however it'll still need to be cut and programmed by an authorized dealer.