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

It's a good idea always to have an extra key on hand regardless of whether you lost the keyfob you were using or it stopped working. This article will show you how to add, modify or reprogramme the Mazda 3 keyfobs.

Be aware that some keys require programming from professional locksmiths, while others do not. Only use official Mazda replacements to replace your key fob.

How do you add an additional key

If you're not fortunate enough to get a spare key from the dealer when you buy your Mazda 3 or accidentally break the one you have do not fret -- there's still the option of adding another key. To accomplish this, you'll require an incredibly small screwdriver, a flathead screwdriver, and the new CR2025 batteries. Once you've got all the equipment you need, it's time to open the key fob. Find the auxiliary key release. The button is located on the bottom of the metal portion. It's easy to locate. The cover on the back should fall off the moment you press the button. Then, you can insert the screwdriver's head into the notch on top or the space and remove the metal part.

After the auxiliary key has been removed, insert your 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 is only possible to program three keys in your Mazda 3. The one thing you don't want is to have more than two working key fobs and not be capable of getting your vehicle started. This is a security measure that is designed to block unauthorized users, like valet drivers who are not authorized to use your key and thereby launching your vehicle.

How to Reprogram a spare key

If you have a spare key it's best to be aware of how to program it if your original key is stolen or lost. This will stop unauthorised people from taking your car and then starting it. This should work with any Mazda. You will need two keys that work for the reprogramming to begin. If you don't have two working keys, you'll need bring your car to the dealership to get it done.

Begin by getting in your driver's seat, and close the door, except for the one that's opened. Place the first working key in the slot, then set the ignition to ON. After five seconds, remove the key. Repeat with the second key.

After you've completed programming your new key, you'll have three working keys you can use to start your vehicle in the future. Before you store each key, make sure it's functioning correctly.

It's a good idea buy a spare Mazda 3 key fob, especially if you're someone who has a tendency to lose their keys or has other issues with it. You can purchase one online or at a local automotive retailer, but make sure to read reviews prior to purchasing so you can avoid getting one that's not compatible with your vehicle.

How do you change the battery on a spare key

There's nothing worse than finding that the battery in your key fob has gone out and you're not able to unlock your car. It's easy to replace the battery yourself and save money at the dealership.

Press the auxiliary key button located at the back of the keyfob. This will release the metal key auxiliary to reveal a slot on both sides of the case. Put the flathead into one of these slots, and then gently push the two halves apart. When the battery is completely exposed, remove it and place the case somewhere that you won't forget about it.

Before you begin, make sure you have a new replacement battery. You can find these in any store that sells batteries or at a Mazda dealer near Winter Garden. The correct battery is crucial to ensure that your key fob functions properly.

Then, put the new battery in the correct place and replace the cap on the battery. Be careful not damage the rubber ring on which the battery rests. Press the two halves together until you can hear the click.

How to Reset a Keyless Entry System

The key fob in your Mazda Key Fob (En.Easypanme.Com) 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 it has the spare key fob. The key fob should be reprogrammed by the dealer to enable it to function again. This can be a costly and stressful experience therefore it's a great idea to know how to reset the system yourself.

Disconnect the battery from the system for 15 minutes. This will eliminate any residual electrical current from the computer on board. Then, disconnect the LF ECU and demand switch connectors. Check for continuity between the terminals.

To program a new key, or a spare, place it in the slot and set the ignition to ON. The ignition should be turned off after approximately five seconds. The key information will now be added 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 each time. This prevents unauthorized people from copying the key and getting ahold of your vehicle. You can purchase a brand new key fob on the internet, but you'll still have to visit a dealer or locksmith to cut it and programmed.