How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to keep an extra key on hand regardless of whether you lost the keyfob or it stopped working. This article will tell you how to add, alter or reprogramme the Mazda 3 keyfobs.
Warning: Some keys require programming from a professional locksmith, while others do not. 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 in case you don't have a spare key available or if you accidentally damage your existing one. You'll need the flathead screwdriver, as well as the CR2025 replacement battery. Once you have these items then it's time to open the key fob and replace the battery. Find the auxiliary key release. The button is located on the bottom of the metal portion. It's easy to find. When you hit the button, the cover should be removed immediately. Then, you can insert the screwdriver's head into the notch or space at the top of the metal part and pull it away.
After the auxiliary keys are removed, insert the new or spare key into the slot. Turn the ignition on and wait for approximately five seconds, then turn it to OFF. This will allow the system to recognize the new key and begin your vehicle in the future.
It is only possible to program three keys into your Mazda 3. The last thing you want is to have more than two working key fobs and not be able to get your car started. This is a safety measure to stop anyone who is not authorized from activating your keys and then starting your vehicle.
How do you reprogram a spare key?
It's a smart idea know how you can reprogram an extra key in the event that your original key is lost or stolen. This will stop unauthorised people from getting into your car and causing damage to it. This procedure should work with any Mazda but you'll need two working keys to start the reprogramming. If you don't own two working keys, you'll have to bring your car to the dealership to have it done.
Begin by putting yourself in the driver's seat, and closing the door, except for the one that's been opened. Put the first working key in the slot, and then set the ignition to ON. For five seconds, remove the key and repeat the process with the second key.
Once 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 it's working properly.
It is advisable to purchase a spare Mazda 3 remote, especially if your car is prone to problems. You can purchase one on the internet or in your local automotive store. Make sure you read reviews before purchasing to ensure that you don't get an item that isn't compatible with your car.
How do I change the battery on a spare key
There's nothing worse than finding that the battery in your key fob has failed and you are unable to unlock your vehicle. Luckily, it's easy to replace the battery and save yourself some money at the dealership.
The first step is to press the auxiliary key button on the back of the key fob. This will remove the key auxiliary to reveal slots on both sides of the case. Press the flathead into one of these slots and then gently pull the two halves of the case apart. When the battery is fully exposed, remove the case and place it in a spot where you'll never forget about it.
Before you begin, make sure you have a new replacement battery. You can find these at any retailer that sells batteries or at an Mazda dealer close to Winter Garden. The correct type of battery is essential to ensure that your keyfob works properly.
Next, put the replacement battery in place and replace the cap of the battery. Be careful not damage the rubber ring that holds the battery. Then, press the two halves of the key fob together until you hear an audible click.
How to Reset the Keyless Entry System
The key fob in your Mazda 3 is not only an added convenience, but it's also an important security feature. The car won't start if your key is lost or stolen even if you have an extra key fob. This is because the fob that you have to be reprogrammed by the dealership in order to function properly. It can be a costly and frustrating ordeal It's a good idea to know how to reset the system yourself.
To reset the system, disconnect the battery for approximately 15 minutes. This will take out any remaining electrical power in the on-board computer. Next, disconnect both the LF-ECU connector as well as the demand switch connectors. Check continuity between the following terminals.
To program an entirely new key or spare, insert it into the slot and set the ignition to ON. mazda 3 key replacement off the ignition after about five minutes. The information from the key will be added to the vehicle's computer and the new fob will be able start your vehicle in the future. You can program any number of fobs you would like however only one must be utilized at any specific time. This stops unauthorized individuals from copying your key and getting ahold of your vehicle. You can purchase a replacement key fob online, however you'll still need to visit an expert locksmith or dealer to get it cut and programmed.
